Bug 170551

Description of problem:

I upgraded my server from FC3 to FC4 using yum and applied all the latest updates. After rebooting to 
FC4 the system ran fine for a few hours but I received errors when I ran "rpm -Va" about the disk not 
being writable and that the disk was mounted read-only. Nothing was in the logs. This is a brand-new 
server I just brought online running apache, sshd, and sendmail (under no load).

I rebooted and the system ran fine for about a day when it crashed overnight; a reboot revealed the 
following in the logs:

Oct 12 09:45:20 colo2 kernel: ------------[ cut here ]------------
Oct 12 09:45:20 colo2 kernel: kernel BUG at include/linux/list.h:165!
Oct 12 09:45:20 colo2 kernel: invalid operand: 0000 [#1]
Oct 12 09:45:20 colo2 kernel: Modules linked in: autofs4 i2c_dev i2c_core sunrpc ipv6 ipt_state 
ip_conntrack iptable_filter ip_tables dm_mod video button battery ac uhci_hcd ehci_hcd shpchp via_ircc 
irda crc_ccitt snd_via82xx gameport snd_ac97_codec snd_seq_dummy snd_seq_oss 
snd_seq_midi_event snd_seq snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc 
snd_mpu401_uart snd_rawmidi snd_seq_device snd soundcore 8139too mii floppy ext3 jbd
Oct 12 09:45:20 colo2 kernel: CPU:    0
Oct 12 09:45:20 colo2 kernel: EIP:    0060:[<c01765f3>]    Not tainted VLI
Oct 12 09:45:20 colo2 kernel: EFLAGS: 00010006   (2.6.13-1.1526_FC4)
Oct 12 09:45:20 colo2 kernel: EIP is at free_block+0xd3/0xe7
Oct 12 09:45:20 colo2 kernel: eax: 00800000   ebx: 00000001   ecx: c1800058   edx: c1800000
Oct 12 09:45:20 colo2 kernel: esi: f7ffd740   edi: 00000003   ebp: 00000005   esp: f7fefef8
Oct 12 09:45:20 colo2 kernel: ds: 007b   es: 007b   ss: 0068
Oct 12 09:45:20 colo2 kernel: Process events/0 (pid: 3, threadinfo=f7fef000 task=f7ec9000)
Oct 12 09:45:20 colo2 kernel: Stack: c03ff266 f7ffeb50 f7ffeb50 f7ffeb40 00000005 f7ffd740 
c017735b f7ffd740
Oct 12 09:45:20 colo2 kernel:        f7ffd6bc 00000001 f7ffd6e4 c0177588 19681000 003d9000 
00000282 f7ec9000
Oct 12 09:45:20 colo2 kernel:        19681000 003d9000 00000000 00000000 f7ffd6bc f7ffd7c8 
c0511520 f7ffa640
Oct 12 09:45:20 colo2 kernel: Call Trace:
Oct 12 09:45:20 colo2 kernel:  [<c03ff266>] schedule+0x356/0x938
Oct 12 09:45:20 colo2 kernel:  [<c017735b>] drain_array_locked+0x6e/0x9e
Oct 12 09:45:20 colo2 kernel:  [<c0177588>] cache_reap+0x1fd/0x5b5
Oct 12 09:45:20 colo2 kernel:  [<c017738b>] cache_reap+0x0/0x5b5
Oct 12 09:45:20 colo2 kernel:  [<c0147bf7>] worker_thread+0x2aa/0x621
Oct 12 09:45:20 colo2 kernel:  [<c012186b>] __wake_up_common+0x39/0x59
Oct 12 09:45:20 colo2 kernel:  [<c0121826>] default_wake_function+0x0/0xc
Oct 12 09:45:20 colo2 kernel:  [<c014794d>] worker_thread+0x0/0x621
Oct 12 09:45:20 colo2 kernel:  [<c01508ab>] kthread+0x87/0x8b
Oct 12 09:45:20 colo2 kernel:  [<c0150824>] kthread+0x0/0x8b
Oct 12 09:45:20 colo2 kernel:  [<c01012ed>] kernel_thread_helper+0x5/0xb
Oct 12 09:45:20 colo2 kernel: Code: 84 75 ff ff ff 8d 46 0c 8b 50 04 89 48 04 89 01 89 51 04 89 0a eb 
80 2b 46 3c 89 46 24 89 ca 89 f0 e8 fe e1 ff ff e9 6c ff ff ff <0f> 0b a5 00 c6 29 41 c0 eb 8d 0f 0b a6 
00 c6 29 41 c0 eb 8a 55


Version-Release number of selected component (if applicable):
kernel-2.6.13-1.1526_FC4
Linux colo2.hamor.com 2.6.13-1.1526_FC4 #1 Wed Sep 28 19:15:10 EDT 2005 i686 athlon i386 GNU/
Linux

[root@colo2 ~]# cat /proc/cpuinfo 
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 6
model           : 10
model name      : AMD Athlon(tm) XP 2500+
stepping        : 0
cpu MHz         : 1832.169
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 mmx fxsr sse 
syscall mmxext 3dnowext 3dnow
bogomips        : 3668.05


How reproducible:

Unable to reliably reproduce. System is just generally unstable.


Steps to Reproduce:
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Actual results:


Expected results:


Additional info: