[alsa-devel] [Fwd: Re: Problems with snd_hda_intel in Linux kernel 2.6.38]

[Svante Signell]

I am subscribed. What's the problem? (now without attachment). How can I
send the attachment to the developers?

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> 
>     Re: [alsa-devel] Problems with snd_hda_intel in Linux kernel
> 2.6.38
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-------- Forwarded Message --------
From: Svante Signell <srs at kth.se>
To: Clemens Ladisch <clemens at ladisch.de>
Cc: Takashi Iwai <tiwai at suse.de>, 619034 at bugs.debian.org,
alsa-devel at alsa-project.org, 613979 at bugs.debian.org
Subject: Re: [alsa-devel] Problems with snd_hda_intel in Linux kernel
2.6.38
Date: Thu, 31 Mar 2011 00:42:46 +0200

On Wed, 2011-03-30 at 15:13 +0200, Clemens Ladisch wrote:
> Svante Signell wrote:
> > Code: f4 01 00 00 ef 31 f6 48 89 df e8 15 dd ff ff 85 c0
> > 0f 88 2b 03 00 00 48 89 ef e8 ee 11 b9 e0 8b 7b 40 e8 9f 25 a7 e0 48 8b
> > 43 38 <66> 8b 10 66 89 14 24 8b 43 14 83 e8 03 83 f8 01 77 32 31 d2 be
> 
>    5:   31 f6                   xor    %esi,%esi
>    7:   48 89 df                mov    %rbx,%rdi
>    a:   e8 15 dd ff ff          callq  0xffffffffffffdd24
>    f:   85 c0                   test   %eax,%eax
>   11:   0f 88 2b 03 00 00       js     0x342
>   17:   48 89 ef                mov    %rbp,%rdi
>   1a:   e8 ee 11 b9 e0          callq  0xffffffffe0b9120d
>   1f:   8b 7b 40                mov    0x40(%rbx),%edi
>   22:   e8 9f 25 a7 e0          callq  0xffffffffe0a725c6
>   27:   48 8b 43 38             mov    0x38(%rbx),%rax
>   2b:   66 8b 10                mov    (%rax),%dx         <-- crash here
>   2e:   66 89 14 24             mov    %dx,(%rsp)
>   32:   8b 43 14                mov    0x14(%rbx),%eax
>   35:   83 e8 03                sub    $0x3,%eax
>   38:   83 f8 01                cmp    $0x1,%eax
>   3b:   77 32                   ja     0x6f
>   3d:   31 d2                   xor    %edx,%edx
> 
> This is the azx_readw(chip, GCAP) in azx_create(); chip->remap_addr is
> 0xffffc90011c08000 which does look like a valid pointer, but isn't.

Thank you Clemens! Maybe your input is sufficient to solve this problem.
I have now installed the debug version of the kernel, the objdump output
is attached (please let me know if you are missing something).sorry, I
don't know where to find the relevant information in this file, but that
is all I have (still very large). (Does not include the error messages
on stderr, maybe something is still missing.)

Thanks!