10 Awọn ofin Strace fun Laasigbotitusita ati N ṣatunṣe Awọn ilana Lainos
strace jẹ ohun elo laini aṣẹ pipaṣẹ ti o lagbara fun n ṣatunṣe aṣiṣe ati awọn eto titu wahala ninu awọn ọna ṣiṣe Unix-bii Linux. O gba ati ṣe igbasilẹ gbogbo awọn ipe eto ti a ṣe nipasẹ ilana kan ati awọn ifihan agbara ti o gba nipasẹ ilana naa.
O ṣe afihan orukọ ti ipe eto kọọkan papọ pẹlu awọn ariyanjiyan rẹ ti o wa ninu akọmọ ati iye ipadabọ rẹ si aṣiṣe aṣiṣe; o le ṣe ayipada aṣayan si faili bi daradara.
Ninu nkan yii, a yoo ṣalaye awọn apẹẹrẹ pipaṣẹ 10 strace fun laasigbotitusita ati awọn eto n ṣatunṣe aṣiṣe ati awọn ilana ninu eto Linux kan.
Bii o ṣe le Fi Irin-iṣẹ Abojuto Ilana Strace sii ni Linux
Ti okun ko ba fi sori ẹrọ tẹlẹ lori ẹrọ Linux rẹ, ṣiṣe aṣẹ ti o yẹ ni isalẹ fun pinpin rẹ, lati fi sii.
$ sudo apt install strace #Debian/Ubuntu # yum install strace #RHEL/CentOS # dnf install strace #Fedora 22+
Ni ọran ti eto kan ba kọlu tabi huwa ni ọna ti ko nireti, o le lọ nipasẹ awọn ipe awọn ọna ṣiṣe lati ni oye ti ohun ti o ṣẹlẹ gangan lakoko ipaniyan rẹ. Bii a yoo rii nigbamii, awọn ipe eto le ṣe tito lẹtọ labẹ awọn iṣẹlẹ oriṣiriṣi: awọn ti o jọmọ iṣakoso ilana, awọn ti o mu faili bi ariyanjiyan, awọn ti o kan nẹtiwọọki, aworan agbaye iranti, awọn ifihan agbara, IPC ati tun awọn ipe eto ibatan alaye faili.
O le boya ṣiṣe eto kan/pipaṣẹ pẹlu okun tabi kọja PID si o nipa lilo aṣayan -p
bi ninu awọn apẹẹrẹ wọnyi.
1. Wa kakiri Awọn ipe Eto Ofin Linux
O le jiroro ni ṣiṣe aṣẹ kan pẹlu okun bi eleyi, nibi a wa kakiri gbogbo awọn ipe eto ti a ṣe nipasẹ aṣẹ df.
$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "7ELF$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...$ strace df -h execve("/bin/df", ["df", "-h"], [/* 50 vars */]) = 0 brk(NULL) = 0x136e000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82f78fd000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f82f78d8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82f7310000 ...Lati iṣẹjade loke, o le wo ọpọlọpọ awọn oriṣi ti awọn ipe eto ti a ṣe nipasẹ aṣẹ df, fun apẹẹrẹ.
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3Nibo:
- ṣii - ni iru ipe eto
- (“/etc/ld.so.cache”, O_RDONLY | O_CLOEXEC) - ariyanjiyan ipe eto
- 3 - iye ipadabọ ipe ipe eto
Ni isalẹ jẹ iṣapẹẹrẹ apẹẹrẹ kan ti o nfihan awọn ipe eto kikọ, ti o han ifihan aṣẹ df lori iboju.
mmap(NULL, 26258, PROT_READ, MAP_SHARED, 3, 0) = 0x7f82f78f5000 close(3) = 0 fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...}) = 0 write(1, "Filesystem Size Used Avail"..., 49Filesystem Size Used Avail Use% Mounted on ) = 49 write(1, "udev 3.9G 0 3.9G"..., 43udev 3.9G 0 3.9G 0% /dev ) = 43 write(1, "tmpfs 788M 9.6M 779M"..., 43tmpfs 788M 9.6M 779M 2% /run ) = 43 write(1, "/dev/sda10 324G 252G 56G"..., 40/dev/sda10 324G 252G 56G 82% / ) = 40 write(1, "tmpfs 3.9G 104M 3.8G"..., 47tmpfs 3.9G 104M 3.8G 3% /dev/shm ) = 47 write(1, "tmpfs 5.0M 4.0K 5.0M"..., 48tmpfs 5.0M 4.0K 5.0M 1% /run/lock ) = 48 write(1, "tmpfs 3.9G 0 3.9G"..., 53tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup ) = 53 write(1, "cgmfs 100K 0 100K"..., 56cgmfs 100K 0 100K 0% /run/cgmanager/fs ) = 56 write(1, "tmpfs 788M 36K 788M"..., 53tmpfs 788M 36K 788M 1% /run/user/1000 ) = 53 close(1) = 0 close(2) = 0 exit_group(0) = ? +++ exited with 0 +++
2. Wa kakiri Ilana Linux PID
Ti ilana kan ba n ṣiṣẹ tẹlẹ, o le wa kakiri rẹ nipa gbigbe PID rẹ kọja bi atẹle; eyi yoo fọwọsi iboju rẹ pẹlu iṣelọpọ ti n tẹsiwaju ti o fihan awọn ipe eto ṣiṣe nipasẹ ilana, lati pari rẹ, tẹ [Ctrl + C]
.
$ sudo strace -p 3569 strace: Process 3569 attached restart_syscall(<... resuming interrupted poll ...>) = 1 recvmsg(4, {msg_name(0)=NULL, msg_iov(1)=[{"U0!70$ sudo strace -p 3569 strace: Process 3569 attached restart_syscall(<... resuming interrupted poll ...>) = 1 recvmsg(4, {msg_name(0)=NULL, msg_iov(1)=[{"U\2\24\300!\247\330\0\3\24\4\0\20\0\0\0\0\0\0\24\24\24\24\24\0\0\3\37%\2\0\0", 4096}], msg_controllen=0, msg_flags=0}, 0) = 32 recvmsg(4, 0x7ffee4dbf870, 0) = -1 EAGAIN (Resource temporarily unavailable) recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, -1) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 0 (Timeout) mprotect(0x207faa20000, 8192, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa20000, 8192, PROT_READ|PROT_EXEC) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_EXEC) = 0 ...$ sudo strace -p 3569 strace: Process 3569 attached restart_syscall(<... resuming interrupted poll ...>) = 1 recvmsg(4, {msg_name(0)=NULL, msg_iov(1)=[{"U\2\24\300!\247\330\0\3\24\4\0\20\0\0\0\0\0\0\24\24\24\24\24\0\0\3\37%\2\0\0", 4096}], msg_controllen=0, msg_flags=0}, 0) = 32 recvmsg(4, 0x7ffee4dbf870, 0) = -1 EAGAIN (Resource temporarily unavailable) recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, -1) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 0 (Timeout) mprotect(0x207faa20000, 8192, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa20000, 8192, PROT_READ|PROT_EXEC) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_EXEC) = 0 ...$ sudo strace -p 3569 strace: Process 3569 attached restart_syscall(<... resuming interrupted poll ...>) = 1 recvmsg(4, {msg_name(0)=NULL, msg_iov(1)=[{"U\2\24\300!\247\330\0\3\24\4\0\20\0\0\0\0\0\0\24\24\24\24\24\0\0\3\37%\2\0\0", 4096}], msg_controllen=0, msg_flags=0}, 0) = 32 recvmsg(4, 0x7ffee4dbf870, 0) = -1 EAGAIN (Resource temporarily unavailable) recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, -1) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 0 (Timeout) mprotect(0x207faa20000, 8192, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa20000, 8192, PROT_READ|PROT_EXEC) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_EXEC) = 0 ...$ sudo strace -p 3569 strace: Process 3569 attached restart_syscall(<... resuming interrupted poll ...>) = 1 recvmsg(4, {msg_name(0)=NULL, msg_iov(1)=[{"U\2\24\300!\247\330\0\3\24\4\0\20\0\0\0\0\0\0\24\24\24\24\24\0\0\3\37%\2\0\0", 4096}], msg_controllen=0, msg_flags=0}, 0) = 32 recvmsg(4, 0x7ffee4dbf870, 0) = -1 EAGAIN (Resource temporarily unavailable) recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, -1) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 0 (Timeout) mprotect(0x207faa20000, 8192, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa20000, 8192, PROT_READ|PROT_EXEC) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_EXEC) = 0 ...$ sudo strace -p 3569 strace: Process 3569 attached restart_syscall(<... resuming interrupted poll ...>) = 1 recvmsg(4, {msg_name(0)=NULL, msg_iov(1)=[{"U\2\24\300!\247\330\0\3\24\4\0\20\0\0\0\0\0\0\24\24\24\24\24\0\0\3\37%\2\0\0", 4096}], msg_controllen=0, msg_flags=0}, 0) = 32 recvmsg(4, 0x7ffee4dbf870, 0) = -1 EAGAIN (Resource temporarily unavailable) recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, -1) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 0 (Timeout) mprotect(0x207faa20000, 8192, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa20000, 8192, PROT_READ|PROT_EXEC) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_EXEC) = 0 ...$ sudo strace -p 3569 strace: Process 3569 attached restart_syscall(<... resuming interrupted poll ...>) = 1 recvmsg(4, {msg_name(0)=NULL, msg_iov(1)=[{"U\2\24\300!\247\330\0\3\24\4\0\20\0\0\0\0\0\0\24\24\24\24\24\0\0\3\37%\2\0\0", 4096}], msg_controllen=0, msg_flags=0}, 0) = 32 recvmsg(4, 0x7ffee4dbf870, 0) = -1 EAGAIN (Resource temporarily unavailable) recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, -1) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 0 (Timeout) mprotect(0x207faa20000, 8192, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa20000, 8192, PROT_READ|PROT_EXEC) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_EXEC) = 0 ...$ sudo strace -p 3569 strace: Process 3569 attached restart_syscall(<... resuming interrupted poll ...>) = 1 recvmsg(4, {msg_name(0)=NULL, msg_iov(1)=[{"U\2\24\300!\247\330\0\3\24\4\0\20\0\0\0\0\0\0\24\24\24\24\24\0\0\3\37%\2\0\0", 4096}], msg_controllen=0, msg_flags=0}, 0) = 32 recvmsg(4, 0x7ffee4dbf870, 0) = -1 EAGAIN (Resource temporarily unavailable) recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, -1) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 0 (Timeout) mprotect(0x207faa20000, 8192, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa20000, 8192, PROT_READ|PROT_EXEC) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_EXEC) = 0 ...$ sudo strace -p 3569 strace: Process 3569 attached restart_syscall(<... resuming interrupted poll ...>) = 1 recvmsg(4, {msg_name(0)=NULL, msg_iov(1)=[{"U\2\24\300!\247\330\0\3\24\4\0\20\0\0\0\0\0\0\24\24\24\24\24\0\0\3\37%\2\0\0", 4096}], msg_controllen=0, msg_flags=0}, 0) = 32 recvmsg(4, 0x7ffee4dbf870, 0) = -1 EAGAIN (Resource temporarily unavailable) recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, -1) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 0 (Timeout) mprotect(0x207faa20000, 8192, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa20000, 8192, PROT_READ|PROT_EXEC) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_EXEC) = 0 ...$ sudo strace -p 3569 strace: Process 3569 attached restart_syscall(<... resuming interrupted poll ...>) = 1 recvmsg(4, {msg_name(0)=NULL, msg_iov(1)=[{"U\2\24\300!\247\330\0\3\24\4\0\20\0\0\0\0\0\0\24\24\24\24\24\0\0\3\37%\2\0\0", 4096}], msg_controllen=0, msg_flags=0}, 0) = 32 recvmsg(4, 0x7ffee4dbf870, 0) = -1 EAGAIN (Resource temporarily unavailable) recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, -1) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 0 (Timeout) mprotect(0x207faa20000, 8192, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa20000, 8192, PROT_READ|PROT_EXEC) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_EXEC) = 0 ...$ sudo strace -p 3569 strace: Process 3569 attached restart_syscall(<... resuming interrupted poll ...>) = 1 recvmsg(4, {msg_name(0)=NULL, msg_iov(1)=[{"U\2\24\300!\247\330\0\3\24\4\0\20\0\0\0\0\0\0\24\24\24\24\24\0\0\3\37%\2\0\0", 4096}], msg_controllen=0, msg_flags=0}, 0) = 32 recvmsg(4, 0x7ffee4dbf870, 0) = -1 EAGAIN (Resource temporarily unavailable) recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, -1) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 0 (Timeout) mprotect(0x207faa20000, 8192, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa20000, 8192, PROT_READ|PROT_EXEC) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_EXEC) = 0 ...$ sudo strace -p 3569 strace: Process 3569 attached restart_syscall(<... resuming interrupted poll ...>) = 1 recvmsg(4, {msg_name(0)=NULL, msg_iov(1)=[{"U\2\24\300!\247\330\0\3\24\4\0\20\0\0\0\0\0\0\24\24\24\24\24\0\0\3\37%\2\0\0", 4096}], msg_controllen=0, msg_flags=0}, 0) = 32 recvmsg(4, 0x7ffee4dbf870, 0) = -1 EAGAIN (Resource temporarily unavailable) recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, -1) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 0 (Timeout) mprotect(0x207faa20000, 8192, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa20000, 8192, PROT_READ|PROT_EXEC) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_EXEC) = 0 ...$ sudo strace -p 3569 strace: Process 3569 attached restart_syscall(<... resuming interrupted poll ...>) = 1 recvmsg(4, {msg_name(0)=NULL, msg_iov(1)=[{"U\2\24\300!\247\330\0\3\24\4\0\20\0\0\0\0\0\0\24\24\24\24\24\0\0\3\37%\2\0\0", 4096}], msg_controllen=0, msg_flags=0}, 0) = 32 recvmsg(4, 0x7ffee4dbf870, 0) = -1 EAGAIN (Resource temporarily unavailable) recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, -1) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 1 ([{fd=31, revents=POLLIN}]) read(31, "\372", 1) = 1 recvmsg(4, 0x7ffee4dbf850, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=30, events=POLLIN}, {fd=31, events=POLLIN}], 6, 0) = 0 (Timeout) mprotect(0x207faa20000, 8192, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa20000, 8192, PROT_READ|PROT_EXEC) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_WRITE) = 0 mprotect(0x207faa21000, 4096, PROT_READ|PROT_EXEC) = 0 ...3. Gba Akopọ ti Ilana Linux
Lilo Flag
-c
, o le ṣe agbejade ijabọ ti akoko lapapọ, awọn ipe, ati awọn aṣiṣe fun ipe eto kọọkan, bi atẹle.$ sudo strace -c -p 3569 strace: Process 3569 attached ^Cstrace: Process 3569 detached % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 99.73 0.016000 8 1971 poll 0.16 0.000025 0 509 75 futex 0.06 0.000010 0 1985 1966 recvmsg 0.06 0.000009 0 2336 mprotect 0.00 0.000000 0 478 read 0.00 0.000000 0 13 write 0.00 0.000000 0 29 mmap 0.00 0.000000 0 9 munmap 0.00 0.000000 0 18 writev 0.00 0.000000 0 351 madvise 0.00 0.000000 0 1 restart_syscall ------ ----------- ----------- --------- --------- ---------------- 100.00 0.016044 7700 2041 total4. Atẹka Itọsọna Ẹkọ Nigba Ipe Eto
Aṣayan
-i
ṣe afihan ijuboluwo itọnisọna ni akoko ipe eto kọọkan ti eto naa ṣe.$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "7ELF$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...$ sudo strace -i df -h [00007f0d7534c777] execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 [00007faf9cafa4b9] brk(NULL) = 0x12f0000 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb47a] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faf9cd03000 [00007faf9cafb387] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7faf9ccde000 [00007faf9cafb427] close(3) = 0 [00007faf9cafb387] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) [00007faf9cafb327] open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [00007faf9cafb347] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 [00007faf9cafb2b4] fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 [00007faf9cafb47a] mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7faf9c716000 [00007faf9cafb517] mprotect(0x7faf9c8d6000, 2097152, PROT_NONE) = 0 ...5. Ṣafihan Aago ti Ọjọ Fun Laini Ijade Ọpa Kan
O tun le tẹ akoko ti ọjọ fun ila kọọkan ninu iṣawari kakiri, nipa gbigbe asia
-t
sii.$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "7ELF$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...$ sudo strace -t df -h 15:19:25 execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 15:19:25 brk(NULL) = 0x234c000 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c7f1d9000 15:19:25 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 15:19:25 fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 15:19:25 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8c7f1b4000 15:19:25 close(3) = 0 15:19:25 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 15:19:25 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 15:19:25 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) = 832 15:19:25 fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0 15:19:25 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8c7ebec000 15:19:25 mprotect(0x7f8c7edac000, 2097152, PROT_NONE) = 0 ...6. Tẹjade Aago Aṣẹ Ti o Na ni Awọn ipe Eto
Lati fihan iyatọ akoko laarin ibẹrẹ ati opin ipe eto kọọkan ti a ṣe nipasẹ eto kan, lo aṣayan
-T
.$ sudo strace -T df -h execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 <0.000287> brk(NULL) = 0xeca000 <0.000035> access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) <0.000028> mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9aff2b1000 <0.000020> access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) <0.000019> open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 <0.000022> fstat(3, {st_mode=S_IFREG|0644, st_size=147662, ...}) = 0 <0.000015> mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f9aff28c000 <0.000019> close(3) = 0 <0.000014> ...7. Wa kakiri Awọn ipe Eto Specific nikan
Ninu aṣẹ ti o wa ni isalẹ,
itọpa = kọwe = koodu> ni a mọ bi ikasi ti o yẹ, nibiti itọpa jẹ afijẹẹri (awọn miiran pẹlu ifihan agbara, abbrev, verbose, raw, kika, tabi kọ). Nibi, kọ ni iye ti iyege.
Atẹle atẹle n fihan gangan awọn ipe eto lati tẹjade iṣẹ df lori iṣelọpọ deede.
$ sudo strace -e trace=write df -h write(1, "Filesystem Size Used Avail"..., 49Filesystem Size Used Avail Use% Mounted on ) = 49 write(1, "udev 3.9G 0 3.9G"..., 43udev 3.9G 0 3.9G 0% /dev ) = 43 write(1, "tmpfs 788M 9.6M 779M"..., 43tmpfs 788M 9.6M 779M 2% /run ) = 43 write(1, "/dev/sda10 324G 252G 56G"..., 40/dev/sda10 324G 252G 56G 82% / ) = 40 write(1, "tmpfs 3.9G 104M 3.8G"..., 47tmpfs 3.9G 104M 3.8G 3% /dev/shm ) = 47 write(1, "tmpfs 5.0M 4.0K 5.0M"..., 48tmpfs 5.0M 4.0K 5.0M 1% /run/lock ) = 48 write(1, "tmpfs 3.9G 0 3.9G"..., 53tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup ) = 53 write(1, "cgmfs 100K 0 100K"..., 56cgmfs 100K 0 100K 0% /run/cgmanager/fs ) = 56 write(1, "tmpfs 788M 28K 788M"..., 53tmpfs 788M 28K 788M 1% /run/user/1000 ) = 53 +++ exited with 0 +++Eyi ni diẹ ninu awọn ofin afikun nipa isọdọtun kakiri.
$ sudo strace -e trace=open,close df -h $ sudo strace -e trace=open,close,read,write df -h $ sudo strace -e trace=all df -h8. Wa kakiri Awọn ipe Eto Ti o da lori Ipo Kan
Jẹ ki a wo bi a ṣe le tọpinpin awọn ipe eto ti o jọmọ kilasi ti awọn iṣẹlẹ ti a fifun. A le lo aṣẹ yii lati tọpinpin gbogbo awọn ipe eto ti o kan iṣakoso ilana.
$ sudo strace -q -e trace=process df -h execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 arch_prctl(ARCH_SET_FS, 0x7fe2222ff700) = 0 Filesystem Size Used Avail Use% Mounted on udev 3.9G 0 3.9G 0% /dev tmpfs 788M 9.6M 779M 2% /run /dev/sda10 324G 252G 56G 82% / tmpfs 3.9G 104M 3.8G 3% /dev/shm tmpfs 5.0M 4.0K 5.0M 1% /run/lock tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup cgmfs 100K 0 100K 0% /run/cgmanager/fs tmpfs 788M 28K 788M 1% /run/user/1000 exit_group(0) = ? +++ exited with 0 +++Itele, lati wa kakiri gbogbo awọn ipe eto ti o gba orukọ faili bi ariyanjiyan, ṣiṣe aṣẹ yii.
$ sudo strace -q -e trace=file df -h execve("/bin/df", ["df", "-h"], [/* 17 vars */]) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3 open("/usr/share/locale/locale.alias", O_RDONLY|O_CLOEXEC) = 3 ...Lati wa kakiri gbogbo awọn ipe eto ti o kan aworan agbaye iranti, tẹ.
$ sudo strace -q -e trace=memory df -h brk(NULL) = 0x77a000 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe8f4658000 mmap(NULL, 147662, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fe8f4633000 mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fe8f406b000 mprotect(0x7fe8f422b000, 2097152, PROT_NONE) = 0 mmap(0x7fe8f442b000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1c0000) = 0x7fe8f442b000 mmap(0x7fe8f4431000, 14752, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fe8f4431000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe8f4632000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe8f4631000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe8f4630000 mprotect(0x7fe8f442b000, 16384, PROT_READ) = 0 mprotect(0x616000, 4096, PROT_READ) = 0 mprotect(0x7fe8f465a000, 4096, PROT_READ) = 0 munmap(0x7fe8f4633000, 147662) = 0 mmap(NULL, 2981280, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fe8f3d93000 brk(NULL) = 0x77a000 brk(0x79b000) = 0x79b000 mmap(NULL, 619, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fe8f4657000 mmap(NULL, 26258, PROT_READ, MAP_SHARED, 3, 0) = 0x7fe8f4650000 Filesystem Size Used Avail Use% Mounted on udev 3.9G 0 3.9G 0% /dev tmpfs 788M 9.6M 779M 2% /run /dev/sda10 324G 252G 56G 82% / tmpfs 3.9G 104M 3.8G 3% /dev/shm tmpfs 5.0M 4.0K 5.0M 1% /run/lock tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup cgmfs 100K 0 100K 0% /run/cgmanager/fs tmpfs 788M 28K 788M 1% /run/user/1000 +++ exited with 0 +++O le wa kakiri gbogbo nẹtiwọọki ati awọn ifihan agbara ti o jọmọ awọn ipe eto.
$ sudo strace -e trace=network df -h $ sudo strace -e trace=signal df -h9. Ṣe àtúnjúwe Ohun tọkasi Trace si Faili
Lati kọ awọn ifiranṣẹ kakiri ti a firanṣẹ si aṣiṣe boṣewa si faili kan, lo aṣayan
-o
. Eyi tumọ si pe nikan o wu aṣẹ ni a tẹ lori iboju bi a ṣe han ni isalẹ.$ sudo strace -o df_debug.txt df -h Filesystem Size Used Avail Use% Mounted on udev 3.9G 0 3.9G 0% /dev tmpfs 788M 9.6M 779M 2% /run /dev/sda10 324G 252G 56G 82% / tmpfs 3.9G 104M 3.8G 3% /dev/shm tmpfs 5.0M 4.0K 5.0M 1% /run/lock tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup cgmfs 100K 0 100K 0% /run/cgmanager/fs tmpfs 788M 28K 788M 1% /run/user/1000Lati wo faili naa, lo aṣẹ ologbo.
$ cat df_debug.txt10. Ṣe afihan Iyọjade N ṣatunṣe aṣiṣe ti Strace
Lati fihan alaye n ṣatunṣe aṣiṣe fun ọpa okun, lo asia
-d
.$ strace -d df -hFun alaye ni afikun, wo oju-iwe eniyan okun.
$ man straceTun ka awọn nkan to wulo ti o ni ibatan wọnyi:
- 20 Awọn irinṣẹ laini pipaṣẹ lati ṣetọju Iṣe Linux
- Sysdig - Abojuto Eto Alagbara ati Ọpa laasigbotitusita fun Lainos
- Bii a ṣe le Wa ipaniyan Awọn pipaṣẹ ni Ikarahun Ikarahun pẹlu Ṣiṣawari Ikarahun
- BCC - Awọn irinṣẹ Titele Dynamic fun Linux Ṣiṣe Abojuto, Nẹtiwọọki ati Diẹ sii
Ni ipari, okun jẹ ohun elo iyalẹnu fun iwadii idi (s) ti ikuna eto: o jẹ n ṣatunṣe aṣiṣe ati titu wahala. O wulo ni iṣe si awọn alakoso eto iriri, awọn olutẹpa eto ati awọn olosa komputa. Lati pin eyikeyi awọn ero nipa nkan yii, lo fọọmu esi ni isalẹ.