[vserver] File System Full

From: Phil Daws <uxbod_at_splatnix.net>
Date: Fri 10 Feb 2012 - 10:45:00 GMT
Message-ID: <291378119.52967.1328870700836.JavaMail.root@office.splatnix.net>

Hello all,

we are seeing a strange issue where one of our vserver guests is reporting that its file system is full yet there is plenty of space:

usera:/var/run# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/hdv1 1008G 187G 812G 19% /
none 128M 0 128M 0% /tmp
usera:/var/run# touch testfile
touch: cannot touch `testfile': No space left on device

Below is a strace -f when running the touch testfile command:

usera:/var/run# strace -f touch testfile
execve("/usr/bin/touch", ["touch", "testfile"], [/* 28 vars */]) = 0
brk(0) = 0x60d000
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) = 0x7f3429ad3000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=153901, ...}) = 0
mmap(NULL, 153901, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f3429aad000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/librt.so.1", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220!\0\0\0\0\0\0@"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=31744, ...}) = 0
mmap(NULL, 2128848, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f34296b0000
mprotect(0x7f34296b7000, 2093056, PROT_NONE) = 0
mmap(0x7f34298b6000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7f34298b6000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\355\1\0\0\0\0\0@"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1432968, ...}) = 0
mmap(NULL, 3541032, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f342934f000
mprotect(0x7f34294a7000, 2093056, PROT_NONE) = 0
mmap(0x7f34296a6000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x157000) = 0x7f34296a6000
mmap(0x7f34296ab000, 18472, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f34296ab000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libpthread.so.0", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340Y\0\0\0\0\0\0@"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=131260, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3429aac000
mmap(NULL, 2208640, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f3429133000
mprotect(0x7f342914a000, 2093056, PROT_NONE) = 0
mmap(0x7f3429349000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7f3429349000
mmap(0x7f342934b000, 13184, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f342934b000
close(3) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3429aab000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3429aaa000
arch_prctl(ARCH_SET_FS, 0x7f3429aab700) = 0
open("/dev/urandom", O_RDONLY) = 3
read(3, "\270_f\37!\232;"..., 7) = 7
close(3) = 0
mprotect(0x7f3429349000, 4096, PROT_READ) = 0
mprotect(0x7f34296a6000, 16384, PROT_READ) = 0
mprotect(0x7f34298b6000, 4096, PROT_READ) = 0
mprotect(0x7f3429ad5000, 4096, PROT_READ) = 0
munmap(0x7f3429aad000, 153901) = 0
set_tid_address(0x7f3429aab9d0) = 13524
set_robust_list(0x7f3429aab9e0, 0x18) = 0
futex(0x7fff31ad739c, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0x7fff31ad739c, 0x189 /* FUTEX_??? */, 1, NULL, 7f3429aab700) = -1 ENOSYS (Function not implemented)
rt_sigaction(SIGRTMIN, {0x7f3429138860, [], SA_RESTORER|SA_SIGINFO, 0x7f3429141f60}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x7f34291388f0, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x7f3429141f60}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
brk(0) = 0x60d000
brk(0x62e000) = 0x62e000
open("/usr/lib/locale/locale-archive", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=85880592, ...}) = 0
mmap(NULL, 85880592, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f3423f4c000
close(3) = 0
open("testfile", O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK, 0666) = -1 ENOSPC (No space left on device)
futimesat(AT_FDCWD, "testfile", NULL) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/locale.alias", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=2570, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3429ad2000
read(3, "# Locale name alias data base.\n# "..., 4096) = 2570
read(3, ""..., 4096) = 0
close(3) = 0
munmap(0x7f3429ad2000, 4096) = 0
open("/usr/share/locale/en_US.UTF-8/LC_MESSAGES/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en_US.utf8/LC_MESSAGES/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en_US/LC_MESSAGES/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en.UTF-8/LC_MESSAGES/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en.utf8/LC_MESSAGES/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en/LC_MESSAGES/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
write(2, "touch: "..., 7touch: ) = 7
write(2, "cannot touch `testfile'"..., 23cannot touch `testfile') = 23
open("/usr/share/locale/en_US.UTF-8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en_US.utf8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en_US/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en.UTF-8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en.utf8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
write(2, ": No space left on device"..., 25: No space left on device) = 25
write(2, "\n"..., 1
) = 1
close(1) = 0
close(2) = 0
exit_group(1) = ?

Any thoughts as I have checked the host system and that looks absolutely fine; and so are the other vservers. Weird! :)

-- 
Thanks, Phil 
Received on Fri Feb 10 10:45:26 2012
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