On Sun, 2005-07-03 at 18:53 -0400, Lee Revell wrote:
> Looks like a bug in the voice allocator. This is my fault, that bug was
> thought to have been fixed. Forwarding to alsa-devel.
>
This bug was previously closed in the ALSA BTS. Please find it and
reopen if possible.
Lee
> On Mon, 2005-07-04 at 00:02 +0200, Esben Stien wrote:
> > All of a sudden, audio died and all apps using the device froze. I'm
> > on a p3-600 with a emu10k1 chip.
> >
> > Compiling with the latest patch now, but here's the dmesg output:
> >
> > BUG: Unable to handle kernel NULL pointer dereference at virtual address 00000107
> > printing eip:
> > f8865c12
> > *pde = 00000000
> > Oops: 0000 [#1]
> > PREEMPT
> > Modules linked in: capability commoncap snd_seq_midi snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul loop radeon usb_midi audio snd_usb_audio snd_usb_lib 8139too ne2k_pci 8390 snd_emu10k1 snd_rawmidi snd_util_mem snd_hwdep evdev
> > CPU: 0
> > EIP: 0060:[<f8865c12>] Not tainted VLI
> > EFLAGS: 00210292 (2.6.12-RT-V0.7.50-15)
> > EIP is at snd_emu10k1_pcm_init_voice+0x12/0x5e0 [snd_emu10k1]
> > eax: 000000ff ebx: 0000e000 ecx: 00000000 edx: f6268b74
> > esi: f62696a4 edi: 0000e000 ebp: f6268000 esp: e2883e1c
> > ds: 007b es: 007b ss: 0068 preempt: 00000001
> > Process jackd (pid: 26621, threadinfo=e2882000 task=dfa222f0)
> > Stack: f6268000 0808001a 03020100 00000000 f6268590 c17e4920 e2883e80 00000000
> > 00000001 00000000 e4c44c00 000000ff 00000000 0e0d000e 00000000 0000e000
> > f62696a4 0000e000 00000010 f886666d f6268000 00000000 00000000 f6268b74
> > Call Trace:
> > [<f886666d>] snd_emu10k1_efx_playback_prepare+0x10d/0x120 [snd_emu10k1] (80)
> > [<c036f991>] snd_pcm_do_prepare+0x11/0x30 (60)
> > [<c036ee6c>] snd_pcm_action_group+0x11c/0x1e0 (16)
> > [<c036f1e9>] snd_pcm_action_nonatomic+0x49/0xa0 (32)
> > [<c036f9fd>] snd_pcm_prepare+0x1d/0x30 (32)
> > [<c03721b2>] snd_pcm_playback_ioctl1+0x52/0x2c0 (16)
> > [<c0130dbb>] futex_wake+0x6b/0xc0 (16)
> > [<c0130d04>] wake_futex+0x34/0x80 (4)
> > [<c012fe43>] rt_up_read+0x23/0x40 (8)
> > [<c0130dcf>] futex_wake+0x7f/0xc0 (8)
> > [<c0130dcf>] futex_wake+0x7f/0xc0 (4)
> > [<c017041e>] do_ioctl+0x9e/0xb0 (28)
> > [<c012fff2>] up_mutex+0x32/0x80 (16)
> > [<c01705d5>] vfs_ioctl+0x65/0x200 (20)
> > [<c015cc15>] fget_light+0x85/0x90 (16)
> > [<c01707f8>] sys_ioctl+0x88/0xa0 (20)
> > [<c0102d2b>] sysenter_past_esp+0x54/0x75 (40)
> > Code: 00 fe 05 00 00 00 06 89 f6 c3 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 90 55 57 56 53 83 ec 3c 8b 54 24 5c 8b 6c 24 50 8b 42 10 <8b> 40 08 8b 40 60 89 44 24 28 8b 4c 24 28 8b 72 04 83 78 2c 02
> >
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