On Thu, 2011-03-31 at 01:29 +0200, Svante Signell wrote:
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 kernel2.6.38
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-------- Forwarded Message -------- From: Svante Signell srs@kth.se To: Clemens Ladisch clemens@ladisch.de Cc: Takashi Iwai tiwai@suse.de, 619034@bugs.debian.org, alsa-devel@alsa-project.org, 613979@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!
A small except from the objdump output below. The complete file is too big (400k) for the mailing list. Let me know if more is needed.
56c: be 01 00 00 00 mov $0x1,%esi 571: 48 89 ef mov %rbp,%rdi 574: e8 00 00 00 00 callq 579 <azx_probe+0x37c> 579: 85 c0 test %eax,%eax 57b: 79 07 jns 584 <azx_probe+0x387> 57d: 80 a3 f4 01 00 00 ef andb $0xef,0x1f4(%rbx) 584: 31 f6 xor %esi,%esi 586: 48 89 df mov %rbx,%rdi 589: e8 00 00 00 00 callq 58e <azx_probe+0x391> 58e: 85 c0 test %eax,%eax 590: 0f 88 2b 03 00 00 js 8c1 <azx_probe+0x6c4> 596: 48 89 ef mov %rbp,%rdi 599: e8 00 00 00 00 callq 59e <azx_probe+0x3a1> 59e: 8b 7b 40 mov 0x40(%rbx),%edi 5a1: e8 00 00 00 00 callq 5a6 <azx_probe+0x3a9> 5a6: 48 8b 43 38 mov 0x38(%rbx),%rax 5aa: 66 8b 10 mov (%rax),%dx <- crash here 5ad: 66 89 14 24 mov %dx,(%rsp) 5b1: 8b 43 14 mov 0x14(%rbx),%eax 5b4: 83 e8 03 sub $0x3,%eax 5b7: 83 f8 01 cmp $0x1,%eax 5ba: 77 32 ja 5ee <azx_probe+0x3f1> 5bc: 31 d2 xor %edx,%edx