I have a server running 2.2.5ac3 cuurently a mail+web server.
Yesterday I checked the logs (to find the oops) and I saw three TCP errors.
Here's the oops:
Apr 5 18:58:42 zerg kernel: Unable to handle kernel paging request at virtual address 39336353
Apr 5 18:58:42 zerg kernel: current->tss.cr3 = 01b17000, %cr3 = 01b17000
Apr 5 18:58:42 zerg kernel: *pde = 00000000
Apr 5 18:58:42 zerg kernel: Oops: 0000
Apr 5 18:58:42 zerg kernel: CPU: 0
Apr 5 18:58:42 zerg kernel: EIP: 0010:[find_buffer+40/76]
Apr 5 18:58:42 zerg kernel: EFLAGS: 00010206
Apr 5 18:58:42 zerg kernel: eax: 39336353 ebx: 00006ad3 ecx: 00000900 edx: 39336353
Apr 5 18:58:42 zerg kernel: esi: 00000800 edi: 00006ad3 ebp: 00000900 esp: c2705dfc
Apr 5 18:58:42 zerg kernel: ds: 0018 es: 0018 ss: 0018
Apr 5 18:58:42 zerg kernel: Process sendmail (pid: 21231, process nr: 100, stackpage=c2705000)
Apr 5 18:58:42 zerg kernel: Stack: c0122edb 00000900 00006ad3 00000800 c0123142 00000900 00006ad3 00000800
Apr 5 18:58:42 zerg kernel: 00006ad3 00000000 00000049 c5665760 00000900 c0136aa1 00000900 00006ad3
Apr 5 18:58:42 zerg kernel: 00000800 00000000 0000003d 00000049 c5665760 00000004 c5a498f4 c0136d7c
Apr 5 18:58:42 zerg kernel: Call Trace: [get_hash_table+23/36] [getblk+30/548] [block_getblk+165/640] [ext2_getblk+256/524] [ext2_find_entry+634/764] [lookup_dentry+359/496] [ext2_lookup+48/124]
Apr 5 18:58:42 zerg kernel: [real_lookup+74/112] [lookup_dentry+294/496] [__namei+40/88] [sys_newlstat+14/96] [system_call+52/56]
Apr 5 18:58:42 zerg kernel: Code: 8b 00 39 5a 04 75 11 39 72 08 75 0c 66 39 4a 0c 75 06 89 d0
After this nearly all processes were stuck in 'D' state and I was forced to
reboot. I've tested kernels on this computer since 2.1.1xx and nothing
like this happend.
and the errors:
Apr 6 02:05:16 zerg kernel: *** tcp.c:tcp_data bug acked < copied
Apr 7 10:26:54 zerg kernel: *** tcp.c:tcp_data bug acked < copied
Apr 7 16:22:27 zerg kernel: *** tcp.c:tcp_data bug acked < copied
[root@zerg]:log/:p0:# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 5
model : 4
model name : Pentium MMX
stepping : 3
cpu MHz : 262.506805
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : yes
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr mce cx8 mmx
bogomips : 524.29
[root@zerg]:log/:p0:# lsmod
Module Size Used by
serial 18132 1 (autoclean)
nfs 34904 1 (autoclean)
lockd 29024 1 (autoclean) [nfs]
sunrpc 49160 1 (autoclean) [nfs lockd]
ne 5984 1 (autoclean)
8390 5944 0 (autoclean) [ne]
unix 10056 42 (autoclean)
raid0 1692 1 (autoclean)
[root@zerg]:scripts/:p0:# . ver_linux
-- Versions installed: (if some fields are empty or looks
-- unusual then possibly you have very old versions)
Linux zerg.codec.ro 2.2.5-ac3 #15 Fri Apr 2 13:51:21 EEST 1999 i586 unknown
Kernel modules 2.1.85
Gnu C 2.7.2.3
Binutils 2.9.1.0.15
Linux C Library 2.0.7
Dynamic linker ldd (GNU libc) 2.0.7
Procps 1.2.9
Mount 2.8a
Net-tools (1999-01-01)
Kbd 0.96
Sh-utils 1.16
Modules Loaded serial nfs lockd sunrpc ne 8390 unix raid0
-- Catalin Muresan CM1206-RIPE CODEC Electronic Products voice: +40-64-432450 Internet Services Department email: cata@codec.ro ----------------------------------------------------------------------- 6:04pm up 10:31, 4 users, load average: 0.38, 0.52, 0.41- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/