Re: [LAU] kernel crashes with jackd (with Dell Precision M6600's integrated Intel HDA sound)

At Mon, 19 Dec 2011 12:13:34 +0100,
Clemens Ladisch wrote:
>
> Csillag Kristof wrote:
> > Lately, when experimenting with JACK, I began getting kernel crashes :(
> >
> > I am using stock Debian kernel v3.1.5.
> >
> > [ 7555.763914] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
> > [ 7555.763952] IP: [<ffffffffa08ca7b8>] setup_bdle.isra.21+0x44/0xd9 [snd_hda_intel]
> > [ 7555.764735] RAX: 0000000000000000 RBX: ffff880221825e00 RCX: 0000000000000000
> > [ 7555.765126] Call Trace:
> > [ 7555.765170] [<ffffffffa08caa5c>] ? azx_pcm_prepare+0x20f/0x3c7 [snd_hda_intel]
> > [ 7555.765589] Code: 8b 32 e9 94 00 00 00 81 7d 00 ff 00 00 00 0f 87 96 00 00 00 48 8b 83 c0 00 00 00 44 89 e2 44 89 e6 48 89 df 48 8b 80 d8 02 00 00
> > [ 7555.765683] 8b 48 28 48 89 d0 81 e2 ff 0f 00 00 48 c1 e8 0c 48 c1 e0 04
>
> 7: 81 7d 00 ff 00 00 00 cmpl $0xff,0x0(%rbp)
> e: 0f 87 96 00 00 00 ja aa
> 14: 48 8b 83 c0 00 00 00 mov 0xc0(%rbx),%rax
> 1b: 44 89 e2 mov %r12d,%edx
> 1e: 44 89 e6 mov %r12d,%esi
> 21: 48 89 df mov %rbx,%rdi
> 24: 48 8b 80 d8 02 00 00 mov 0x2d8(%rax),%rax
> 2b: ?? 8b 48 28 mov 0x28(%rax),%r?? <-- crash here
> 2f: 48 89 d0 mov %rdx,%rax
> 32: 81 e2 ff 0f 00 00 and $0xfff,%edx
> 38: 48 c1 e8 0c shr $0xc,%rax
> 3c: 48 c1 e0 04 shl $0x4,%rax
>
> substream->runtime->dma_buffer_p is NULL.
>
> > https://bugzilla.redhat.com/show_bug.cgi?id=702056
> > https://bugzilla.redhat.com/show_bug.cgi?id=718056
> > https://bugzilla.redhat.com/show_bug.cgi?id=749186
>
> Same bug.

Is this a regression? If so, does 3.0.x kernel work?

thanks,

Takashi
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Received on Mon Dec 19 16:15:02 2011