[mythtv-users] Help diagnosing hardlocks / kernel oops.

[John Freer]

Hi all,

Do these logs mean anything to anyone?  Suggestions on diagnosis? 
This is everything within 10 mins of the lockup event.

Thanks,
John.

*******************
[root at numbernine log]# more messages | grep "Apr 24 19:40"
Apr 24 19:40:18 numbernine kernel: Unable to handle kernel paging
request at virtual address 41474147
Apr 24 19:40:18 numbernine kernel:  printing eip:
Apr 24 19:40:18 numbernine kernel: c0147c2f
Apr 24 19:40:18 numbernine kernel: *pde = 00000000
Apr 24 19:40:18 numbernine kernel: Oops: 0002 [#1]
Apr 24 19:40:18 numbernine kernel: Modules linked in: dvb_bt8xx(U)
dvb_core(U) nxt6000(U) mt352(U) dst(U) bt878(U) sp887x(U) cx24110(U)
or51211(U) parport_pc lp parport autofs4 sunrpc nvidia(U) md5 ipv6
xfs video button battery ac lirc_i2c(U) lirc_dev(U) tvaudio(U)
bttv(U) video_buf(U) v4l2_common(U) btcx_risc(U) msp3400(U)
saa7115(U) tuner(U) tveeprom(U) ivtv(U) i2c_algo_bit i2c_core
videodev snd_bt87x(U) snd_intel8x0(U) snd_ac97_codec(U)
snd_pcm_oss(U) snd_mixer_oss(U) snd_pcm(U) snd_timer(U) snd(U)
soundcore snd_page_alloc(U) forcedeth sk98lin ext3 jbd dm_mod
Apr 24 19:40:18 numbernine kernel: CPU:    0
Apr 24 19:40:18 numbernine kernel: EIP:    0060:[<c0147c2f>]   
Tainted: PF     VLI
Apr 24 19:40:18 numbernine kernel: EFLAGS: 00010046  
(2.6.10-1.770_14.rhfc3.at) 
Apr 24 19:40:18 numbernine kernel: EIP is at
cache_alloc_refill+0x150/0x23e
Apr 24 19:40:18 numbernine kernel: eax: 41474143   ebx: dffed4c0  
ecx: d1570000   edx: dffed4cc
Apr 24 19:40:18 numbernine kernel: esi: ffffffff   edi: dffed4cc  
ebp: dffe8400   esp: d9d1bcf4
Apr 24 19:40:18 numbernine kernel: ds: 007b   es: 007b   ss: 0068
Apr 24 19:40:18 numbernine kernel: Process mythbackend (pid: 4210,
threadinfo=d9d1a000 task=d4ff55f0)
Apr 24 19:40:18 numbernine kernel: Stack: 00000050 00000050 dffed4c0
00000202 00000001 c0147f6c 00000000 00000000 
Apr 24 19:40:18 numbernine kernel:        00001000 c0165d16 00000000
c016385b c12b66e0 c12b66e0 00000000 d9d1bde8 
Apr 24 19:40:18 numbernine kernel:        c12b66e0 c016415e 0000000c
dd68f9e4 c0164634 df272800 d9d1bd74 c034f914 
Apr 24 19:40:18 numbernine kernel: Call Trace:
Apr 24 19:40:18 numbernine kernel:  [<c0147f6c>]
kmem_cache_alloc+0x3f/0x45
Apr 24 19:40:18 numbernine kernel:  [<c0165d16>]
alloc_buffer_head+0xd/0x22
Apr 24 19:40:18 numbernine kernel:  [<c016385b>]
alloc_page_buffers+0x21/0x8b
Apr 24 19:40:18 numbernine kernel:  [<c016415e>]
create_empty_buffers+0x10/0x152
Apr 24 19:40:18 numbernine kernel:  [<c0164634>] __block_prepare_write+0x91/0x3d6

-----------------------------------
John J Freer, P.E.
518.441.9647 / john_freer at yahoo.com