Linux - Laptop and Netbook Having a problem installing or configuring Linux on your laptop? Need help running Linux on your netbook? This forum is for you. This forum is for any topics relating to Linux and either traditional laptops or netbooks (such as the Asus EEE PC, Everex CloudBook or MSI Wind).
Notices
Welcome to
LinuxQuestions.org , a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free.
Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
Are you new to LinuxQuestions.org? Visit the following links:
Site Howto |
Site FAQ |
Sitemap |
Register Now
If you have any problems with the registration process or your account login, please
contact us . If you need to reset your password,
click here .
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Get a
virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! With over 10 pre-installed distros to choose from, the worry-free installation life is here! Whether you are a digital nomad or just looking for flexibility, Shells can put your Linux machine on the device that you want to use.
Exclusive for LQ members, get up to 45% off per month.
Click here for more info.
#1
Member
Registered: Jan 2008
Location: Bremen
Distribution: Gentoo
Posts: 33
Rep:
top command hangs
I am in the process of configuring a ramdisk to boot Linux on an Arm Platform. I am using busybox and busybox-links. The command top is provided by busybox-links as a symlink. Now, whenever I use the command my terminal just hangs. I can do nothing. not even Ctrl-C. If anyone could tell me what might be the problem here, it would be really helpful.
#2
Senior Member
Registered: Dec 2005
Location: Massachusetts, USA
Distribution: Ubuntu 10.04 and CentOS 5.5
Posts: 3,873
Running out of memory?
Use strace to call top and see what is happening.
#3
Member
Registered: Jan 2008
Location: Bremen
Distribution: Gentoo
Posts: 33
Original Poster
Rep:
Code:
# strace top
execve("/usr/bin/top", ["top"], [/* 7 vars */]) = 0
brk(0) = 0xa1000
uname({sys="Linux", node="10.0.2.15", ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001c000
access("/etc/ld.so.preload", R_OK)= -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/lib/tls/v5l/fast-mult/half/libcrypt.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/tls/v5l/fast-mult/half", 0xbee052c8) = -1 ENOENT (No such file or directory)
open("/lib/tls/v5l/fast-mult/libcrypt.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/tls/v5l/fast-mult", 0xbee052c8) = -1 ENOENT (No such file or directory)
open("/lib/tls/v5l/half/libcrypt.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/tls/v5l/half", 0xbee052c8) = -1 ENOENT (No such file or directory)
open("/lib/tls/v5l/libcrypt.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/tls/v5l", 0xbee052c8)= -1 ENOENT (No such file or directory)
open("/lib/tls/fast-mult/half/libcrypt.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/tls/fast-mult/half", 0xbee052c8) = -1 ENOENT (No such file or directory)
open("/lib/tls/fast-mult/libcrypt.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/tls/fast-mult", 0xbee052c8) = -1 ENOENT (No such file or directory)
open("/lib/tls/half/libcrypt.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/tls/half", 0xbee052c8) = -1 ENOENT (No such file or directory)
open("/lib/tls/libcrypt.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/tls", 0xbee052c8) = -1 ENOENT (No such file or directory)
open("/lib/v5l/fast-mult/half/libcrypt.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/v5l/fast-mult/half", 0xbee052c8) = -1 ENOENT (No such file or directory)
open("/lib/v5l/fast-mult/libcrypt.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/v5l/fast-mult", 0xbee052c8) = -1 ENOENT (No such file or directory)
open("/lib/v5l/half/libcrypt.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/v5l/half", 0xbee052c8) = -1 ENOENT (No such file or directory)
open("/lib/v5l/libcrypt.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/v5l", 0xbee052c8) = -1 ENOENT (No such file or directory)
open("/lib/fast-mult/half/libcrypt.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/fast-mult/half", 0xbee052c8) = -1 ENOENT (No such file or directory)
open("/lib/fast-mult/libcrypt.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/fast-mult", 0xbee052c8) = -1 ENOENT (No such file or directory)
open("/lib/half/libcrypt.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/half", 0xbee052c8) = -1 ENOENT (No such file or directory)
open("/lib/libcrypt.so.1", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0004\6\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=46160, ...}) = 0
mmap2(NULL, 213276, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40026000
mprotect(0x4002b000, 28672, PROT_NONE) = 0
mmap2(0x40032000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4) = 0x40032000
mmap2(0x40034000, 155932, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40034000
close(3) = 0
open("/lib/libm.so.6", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\2001\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=665376, ...}) = 0
mmap2(NULL, 696480, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x4005b000
mprotect(0x400fc000, 32768, PROT_NONE) = 0
mmap2(0x40104000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa1) = 0x40104000
close(3) = 0
open("/lib/libgcc_s.so.1", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\10\"\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0744, st_size=49044, ...}) = 0
mmap2(NULL, 74512, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40106000
mprotect(0x40111000, 28672, PROT_NONE) = 0
mmap2(0x40118000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa) = 0x40118000
close(3) = 0
open("/lib/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\260K\1\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1112036, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001d000
mmap2(NULL, 1147360, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40119000
mprotect(0x40224000, 32768, PROT_NONE) = 0
mmap2(0x4022c000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x10b) = 0x4022c000
mmap2(0x4022f000, 8672, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4022f000
close(3) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001e000
syscall_983045(0x4001da60, 0x4001da60, 0x67c, 0x4001e138, 0x40025050, 0x40025000, 0, 0xf0005, 0x50, 0xffff4f60, 0, 0xbee05b9c, 0, 0xbee05888, 0x40011438, 0x40001f9c, 0x20000010, 0x4001da60, 0xc2e0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) = 0
mprotect(0x4022c000, 8192, PROT_READ) = 0
mprotect(0x40104000, 4096, PROT_READ) = 0
mprotect(0x40032000, 4096, PROT_READ) = 0
mprotect(0x40024000, 4096, PROT_READ) = 0
getpid() = 274
stat64("/etc/busybox.conf", 0xbee05cb0) = -1 ENOENT (No such file or directory)
getuid32()= 0
getgid32()= 0
setgid32(0) = 0
setuid32(0) = 0
chdir("/proc") = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
rt_sigaction(SIGTERM, {0x53bf0, [TERM], SA_RESTART|0x4000000}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGINT, {0x53bf0, [INT], SA_RESTART|0x4000000}, {SIG_DFL}, 8) = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(0, SNDCTL_TMR_START or TCSETS, {B38400 opost -isig -icanon -echo ...}) = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost -isig -icanon -echo ...}) = 0
ioctl(0, TIOCGWINSZ, {ws_row=0, ws_col=0, ws_xpixel=0, ws_ypixel=0}) = 0
open("/proc", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
brk(0) = 0xa1000
brk(0xc4000) = 0xc4000
getdents64(3, /* 68 entries */, 8192) = 1856
stat64("/proc/1", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
socket(PF_FILE, SOCK_STREAM, 0) = 4
fcntl64(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0
connect(4, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(4) = 0
socket(PF_FILE, SOCK_STREAM, 0) = 4
fcntl64(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0
connect(4, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(4) = 0
open("/etc/nsswitch.conf", O_RDONLY) = 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=452, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "# /etc/nsswitch.conf\n#\n# Example"..., 4096) = 452
read(4, "", 4096) = 0
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/lib/libnss_files.so.2", O_RDONLY) = 4
read(4, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\370\27\0"..., 512) = 512
fstat64(4, {st_mode=S_IFREG|0644, st_size=129212, ...}) = 0
mmap2(NULL, 70324, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x40232000
mprotect(0x4023b000, 28672, PROT_NONE) = 0
mmap2(0x40242000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x8) = 0x40242000
close(4) = 0
mprotect(0x40242000, 4096, PROT_READ) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/1/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "1 (init) S 0 1 1 0 -1 4194560 16"..., 1023) = 182
close(4) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/2/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "2 (posix_cpu_timer) S 1 1 1 0 -1"..., 1023) = 138
close(4) = 0
stat64("/proc/3", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/3/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "3 (softirq-high/0) S 1 1 1 0 -1 "..., 1023) = 141
close(4) = 0
stat64("/proc/4", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/4/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "4 (softirq-timer/0) S 1 1 1 0 -1"..., 1023) = 143
close(4) = 0
stat64("/proc/5", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/5/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "5 (softirq-net-tx/) S 1 1 1 0 -1"..., 1023) = 142
close(4) = 0
stat64("/proc/6", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/6/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "6 (softirq-net-rx/) S 1 1 1 0 -1"..., 1023) = 142
close(4) = 0
stat64("/proc/7", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/7/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "7 (softirq-block/0) S 1 1 1 0 -1"..., 1023) = 142
close(4) = 0
stat64("/proc/8", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/8/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "8 (softirq-tasklet) S 1 1 1 0 -1"..., 1023) = 143
close(4) = 0
stat64("/proc/9", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/9/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "9 (softirq-rcu/0) S 1 1 1 0 -1 1"..., 1023) = 141
close(4) = 0
stat64("/proc/10", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/10/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "10 (watchdog/0) S 1 1 1 0 -1 330"..., 1023) = 135
close(4) = 0
stat64("/proc/11", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/11/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "11 (desched/0) S 1 1 1 0 -1 1073"..., 1023) = 138
close(4) = 0
stat64("/proc/12", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/12/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "12 (events/0) S 1 1 1 0 -1 32832"..., 1023) = 135
close(4) = 0
stat64("/proc/13", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/13/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "13 (khelper) S 1 1 1 0 -1 32832 "..., 1023) = 136
close(4) = 0
stat64("/proc/14", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/14/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "14 (kthread) S 1 1 1 0 -1 32832 "..., 1023) = 134
close(4) = 0
stat64("/proc/21", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/21/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "21 (kblockd/0) S 14 1 1 0 -1 328"..., 1023) = 138
close(4) = 0
stat64("/proc/42", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/42/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "42 (pdflush) S 14 1 1 0 -1 83927"..., 1023) = 136
close(4) = 0
stat64("/proc/43", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/43/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "43 (pdflush) S 14 1 1 0 -1 83927"..., 1023) = 138
close(4) = 0
stat64("/proc/44", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/44/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "44 (kswapd0) S 14 1 1 0 -1 86528"..., 1023) = 137
close(4) = 0
stat64("/proc/45", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/45/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "45 (aio/0) S 14 1 1 0 -1 32832 0"..., 1023) = 133
close(4) = 0
stat64("/proc/146", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/146/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "146 (IRQ 25) S 14 1 1 0 -1 21475"..., 1023) = 142
close(4) = 0
stat64("/proc/148", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/148/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "148 (mtdblockd) S 1 1 1 0 -1 348"..., 1023) = 134
close(4) = 0
stat64("/proc/152", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/152/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "152 (kjournald) S 14 1 1 0 -1 64"..., 1023) = 137
close(4) = 0
stat64("/proc/154", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/154/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "154 (IRQ 12) S 14 1 1 0 -1 21475"..., 1023) = 144
close(4) = 0
stat64("/proc/259", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/259/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "259 (sshd) S 1 259 259 0 -1 4194"..., 1023) = 182
close(4) = 0
stat64("/proc/267", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/267/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "267 (sh) S 1 267 267 0 -1 419456"..., 1023) = 181
close(4) = 0
stat64("/proc/273", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/273/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "273 (strace) S 267 267 267 0 -1 "..., 1023) = 189
close(4) = 0
stat64("/proc/274", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/etc/passwd", O_RDONLY) = 4
fcntl64(4, F_GETFD) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=884, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(4, "root::0:0:root:/root:/bin/bash\nb"..., 4096) = 884
close(4) = 0
munmap(0x4001f000, 4096) = 0
open("/proc/274/stat", O_RDONLY|O_LARGEFILE) = 4
read(4, "274 (top) R 273 267 267 0 -1 419"..., 1023) = 169
close(4) = 0
getdents64(3, /* 0 entries */, 8192) = 0
close(3) = 0
open("stat", O_RDONLY|O_LARGEFILE)= 3
fstat64(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
read(3, "cpu 20839 0 13117 15817 9 0 0 0"..., 1024) = 460
close(3) = 0
munmap(0x4001f000, 4096) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({1, 0},
#4
Member
Registered: Jan 2008
Location: Bremen
Distribution: Gentoo
Posts: 33
Original Poster
Rep:
I can not make much sense out of this.
#5
Senior Member
Registered: Dec 2005
Location: Massachusetts, USA
Distribution: Ubuntu 10.04 and CentOS 5.5
Posts: 3,873
The output of strace can be used in two ways. If you are a programming expert then you can watch the details of your program asking for file access. I am not a programming expert so I use the output differently. I look for very obvious problems being reported. Mostly I look for entries near the end of the output that show things like when the program tries to open files that don't exist or when the program doesn't have sufficient privilege to open a file.
Last edited by stress_junkie; 07-10-2008 at 07:34 AM .
#6
Member
Registered: Jan 2008
Location: Bremen
Distribution: Gentoo
Posts: 33
Original Poster
Rep:
The problem seemed to be with the busybox implementation of top. Replaced it and it works. Solved.
All times are GMT -5. The time now is 10:17 AM .
LinuxQuestions.org is looking for people interested in writing
Editorials, Articles, Reviews, and more. If you'd like to contribute
content, let us know .
