Bug 2737 - loading snd-intel8x0 causes crash
Summary: loading snd-intel8x0 causes crash
Status: REJECTED UNREPRODUCIBLE
Alias: None
Product: Drivers
Classification: Unclassified
Component: Sound(ALSA) (show other bugs)
Hardware: i386 Linux
: P2 high
Assignee: Jaroslav Kysela
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2004-05-20 07:23 UTC by Bas Zoetekouw
Modified: 2006-01-16 12:09 UTC (History)
2 users (show)

See Also:
Kernel Version: 2.6.7
Subsystem:
Regression: ---
Bisected commit-id:


Attachments
lspci output (3.88 KB, text/plain)
2004-05-20 07:24 UTC, Bas Zoetekouw
Details

Description Bas Zoetekouw 2004-05-20 07:23:56 UTC
Distribution: 
  Debian sid, but using vanilla kernel
Hardware Environment: 
  ECS k7s5a motherboard with onboard sound, Athlon 1800+, 512MB mem
Problem Description:

modprobing the snd-intel8x0 crashes my computer
There is nothing useful in the logs and no screen output

I'll attach a lspci dump; the relevant pci device is 00:02.7
Comment 1 Bas Zoetekouw 2004-05-20 07:24:48 UTC
Created attachment 2925 [details]
lspci output

Relevant pci device is 00:02.7
Comment 2 Bas Zoetekouw 2004-05-20 09:57:42 UTC
I did some more debugging:  I have been able to trace to lockup to the
snd_ac97_read(ac97, AC97_VENDOR_ID1) call in ac97_reset_wait() in ac97_codec.c.

The call trace is:
snd_intel8x0_probe() --> snd_intel8x0_mixer() --> snd_ac97_mixer() -->
ac97_reset_wait()

Hope this helps.  Please let me know if some more info is needed.
Comment 3 Alexander Nyberg 2004-12-05 06:32:40 UTC
In mail exchange Bas tells me this was resolved in 2.6.7, closing.
Comment 4 Bas Zoetekouw 2004-12-05 06:40:00 UTC
I think you misread my message.  I meant to say that iirc, the bug is still
there in 2.6.7
Comment 5 Alexander Nyberg 2004-12-05 07:14:35 UTC
You are correct, sorry about that. Upgrading bug to 2.6.7 and giving back to
correct owner. 

Jaroslav, do you know if this has been resolved?
Comment 6 Jaroslav Kysela 2004-12-05 23:02:31 UTC
Could you add some additional printk lines to snd_intel8x0_codec_semaphore()
and snd_intel8x0_codec_read() routines in sound/pci/intel8x0.c? I need to know
the exact lockup location.

Also, you may try to compile ALSA 1.0.7 driver package against the 2.6 tree.
Comment 7 Bas Zoetekouw 2004-12-06 02:31:09 UTC
I'll try, but it could take me a while as I recently upgraded my motherboard. 
The one triggering the bug is now disconnecteed and cpuless.
Comment 8 Erik Hensema 2005-01-07 08:48:07 UTC
I bought this motherboard from Bas. It seems to have some weird IRQ routing
problems. Loading the de4x5 NIC driver caused a hard lockup. The last messages
on the console were IRQ related. Disabling ACPI didn't help. Putting the card in
another PCI slot also don't help. In the end I swapped the NIC with a rtl8139
card with 8139too driver. This one seems to work.

I'll try to load the sound driver later on.
Comment 9 Adrian Bunk 2006-01-16 11:19:34 UTC
Erik, what is the status of this issue?
Comment 10 Erik Hensema 2006-01-16 11:29:25 UTC
The motherboard broke down, so I can't test anymore :/ 

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