We are getting kernel panics while writing real-time video data (~750KBps)
to both hard disk (Ext3) and dvd+rw media (UDF). The hardware and software
configuration along with the kernel oops message follow. Any information as
to how this is happening would be helpful.
Thanks,
Remo
Hardware configuration:
MIC E210882 motherboard (FW82815 chipset)
256MB PC-100 RAM
Primary IDE Master: DiamondMax Plus 8 (40GB) [cable select] /dev/hda
udma5
Primary IDE Slave: HP 200j v1.27 DVD Writer [cable select]
/dev/scd0 (via ide-scsi emulation) udma2
Software configuration:
Distribution: Linux From Scratch (LFS) 4.0
Kernel: 2.4.20
1st patch: packet-2.4.20-2.patch
(http://w1.894.telia.com/~u89404340/patches/packet/2.4/old/)
2nd patch: dvd-packet-2.4.20.patch
(http://w1.894.telia.com/~u89404340/patches/packet/2.4/)
Kernel Panic Messages:
Unable to handle kernel NULL pointer dereference at virtual address 00000018
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<d4a8d8db>] Tainted: P
EFLAGS: 00010286
eax: ceb12c80 ebx: c034ee20 ecx: cea41bc0 edx: cea41bc0
esi: 00000000 edi: 00000040 ebp: 00000000 esp: c02afe90
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 0, stackpage=c02af000)
Stack: c01dd0bc 00000384 00000001 00000082 ceb12c80 00000000 c034ee20
00000040
c034eca0 c01dd4a6 c034ee20 00000000 00000000 00000088 00000003
00000000
c12d1d60 00000296 00000000 cfac2160 c034ee20 cfac2160 cea41bc0
c034eca0
Call Trace: [<c01dd0bc>] [<c01dd4a6>] [<c01dd6ae>] [<c01dd98d>]
[<c01dd8a0>]
[<c012167b>] [<c011d332>] [<c011d246>] [<c011d085>] [<c0108b9e>]
[<c0105360>]
[<c010b208>] [<c0105360>] [<c0105383>] [<c0105412>] [<c0105000>]
Code: 8b 56 18 89 70 04 8b 46 1c c7 46 10 00 00 00 00 8b 7e 0c 89
<0>Kernel panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing
Call Trace:
c01dd0bc ide_wait_stat c01dcff0
c01dd4a6 start_request c01dd2e0
c01dd6ae ide_do_request c01dd5e0
c01dd98d ide_timer_expiry c01dd8a0
c01dd8a0 ide_timer_expiry c01dd8a0
c012167b run_timer_list c0121570
c011d332 bh_action c011d310
c011d246 tasklet_hi_action c011d200
c011d085 do_softirq c011cff0
c0108b9e do_IRQ c0108b00
c0105360 default_idle c0105360
c010b208 call_do_IRQ c010b203
c0105360 default_idle c0105360
c0105383 default_idle c0105360
c0105412 cpu_idle c01053c0
c0105000 rest_init c0105000
Stack:
c01dd0bc ide_wait_stat
00000384
00000001
00000082
ceb12c80
00000000
c034ee20 ide_hwifs (c034eca0)
00000040
c034eca0 ide_hwifs (c034eca0)
c01dd4a6 start_request (c01dd2e0)
c034ee20 ide_hwifs (c034eca0)
00000000
00000000
00000088
00000003
00000000
c12d1d60
00000296
00000000
cfac2160
c034ee20 ide_hwifs (c034eca0)
cfac2160
cea41bc0
c034eca0 ide_hwifs (c034eca0)
========================================================================
Unable to handle kernel NULL Pointer dereference at virtual address 00000018
*pde = 0
Oops: 0002
CPU: 0
eip: 0010 [<d4a8d594>] Tainted: P
EFLAGS: 00010202
eax: 0 ebx: cfac2101 ecx: 0 edx: 0000001f7
esi: c694d800 edi: c034ee20 ebp: ce792620 esp: c02aff18
ds: 0018 es: 0018 ss: 0018
Process swapper pid 0 stackpage=c02af000
Stack
00000000 00000282 c01155b0 c02aff30 00000000 cfac2160 c034ee20 00000282
c034eca0 c01ddbd9 c034ee20 00000000 d4a8d540 c12c6800 04000001 c02affa0
0000000e c01089e5 0000000e cfac2160 c02affa0 c0326ac0 0000000e 000001c0
Call Trace
c01155b0 c01ddbd9 4da8d540 c01089e5 c0108b64 c0105360 c010b208 c0105360
c0105383 c0105412 c0105000
Code
ff 41 18 8b 87 e4 00 00 00 8b 40 04 c7 04 24 01 00 00 00 89
Stack
00000000
00000282
c01155b0 process_timeout (c01155b0)
c02aff30 init_task_union (c02ae000)
00000000
cfac2160
c034ee20 ide_hwifs (c034eca0)
00000282
c034eca0 ide_hwifs (c034eca0)
c01ddbd9 ide_intr (c01ddb20)
c034ee20 ide_hwifs (c034eca0)
00000000
d4a8d540
c12c6800
04000001
c02affa0 init_task_union (c02ae000)
0000000e
c01089e5 handle_IRQ_event (c01089a0)
0000000e
cfac2160
c02affa0 init_task_union (c02ae000)
c0326ac0 irq_desc (c0326900)
0000000e
000001c0
Call trace:
c01155b0 process_timeout (c01155b0)
c01ddbd9 ide_intr (c01ddb20)
4da8d540
c01089e5 handle_IRQ_event (c01089a0)
c0108b64 do_IRQ
c0105360 default_idle
c010b208 call_do_IRQ
c0105360 default_idle
c0105383 default_idle
c0105412 cpu_idle
c0105000 rest_init / _stext / stext ???
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"Dubler, Raymond" <[email protected]> writes:
> We are getting kernel panics while writing real-time video data (~750KBps)
> to both hard disk (Ext3) and dvd+rw media (UDF). The hardware and software
> configuration along with the kernel oops message follow. Any information as
> to how this is happening would be helpful.
>
> Thanks,
> Remo
>
> Hardware configuration:
> MIC E210882 motherboard (FW82815 chipset)
> 256MB PC-100 RAM
> Primary IDE Master: DiamondMax Plus 8 (40GB) [cable select] /dev/hda
> udma5
> Primary IDE Slave: HP 200j v1.27 DVD Writer [cable select]
> /dev/scd0 (via ide-scsi emulation) udma2
>
> Software configuration:
> Distribution: Linux From Scratch (LFS) 4.0
> Kernel: 2.4.20
> 1st patch: packet-2.4.20-2.patch
> (http://w1.894.telia.com/~u89404340/patches/packet/2.4/old/)
> 2nd patch: dvd-packet-2.4.20.patch
> (http://w1.894.telia.com/~u89404340/patches/packet/2.4/)
These patches were created before I had access to a DVD writer. Does
the newer patches work better?
http://w1.894.telia.com/~u89404340/patches/packet/2.4/packet-2.4.23.patch.bz2
http://w1.894.telia.com/~u89404340/patches/packet/2.4/extra/2.4.23/
The patches are based on patches I found at:
http://dyson.kristenscatbeds.com/
Alternatively, if you only need dvd+rw support and not packed writing
support, you could try the patch from:
http://fy.chalmers.se/~appro/linux/DVD+RW/
--
Peter Osterlund - [email protected]
http://w1.894.telia.com/~u89404340