Hi, I've been having a terrible time with ALSA and a SiS SI7012
(with ALC100,100P at 0xdc00). Using a vanilla kernel and have tried
with preempt both on and off. Turning on debugging level 2 I get the
following when an xrun occurs:
XRUN: pcmC0D0p
[<f8babd77>] snd_pcm_period_elapsed+0x1a7/0x350 [snd_pcm]
[<f8b74652>] snd_intel8x0_interrupt+0x182/0x230 [snd_intel8x0]
[<c013154d>] handle_IRQ_event+0x3d/0x70
[<c01315e3>] __do_IRQ+0x63/0xc0
[<c011ab33>] __do_softirq+0x43/0x90
[<c0104a59>] do_IRQ+0x19/0x30
[<c0102d12>] common_interrupt+0x1a/0x20
XRUN: pcmC0D0p
[<f8babd77>] snd_pcm_period_elapsed+0x1a7/0x350 [snd_pcm]
[<f8b74652>] snd_intel8x0_interrupt+0x182/0x230 [snd_intel8x0]
[<c013154d>] handle_IRQ_event+0x3d/0x70
[<c01315e3>] __do_IRQ+0x63/0xc0
[<c0104a59>] do_IRQ+0x19/0x30
[<c0102d12>] common_interrupt+0x1a/0x20
Unexpected hw_pointer value [2] (stream = 0, delta: -418, max jitter =
4456): wrong interrupt acknowledge? [<f8badfa9>] snd_pcm_update_hw_ptr
+0x129/0x260 [snd_pcm] [<f8ba8bb5>] snd_pcm_common_ioctl1+0x695/0x1080
[snd_pcm] [<f8b746ca>] snd_intel8x0_interrupt+0x1fa/0x230 [snd_intel8x0]
[<c011ab33>] __do_softirq+0x43/0x90
[<c02e4e55>] schedule+0x2f5/0x5c0
[<c02e54fc>] schedule_timeout+0x4c/0xc0
[<f8bab4af>] snd_pcm_lib_write_transfer+0x9f/0xd0 [snd_pcm]
[<c0162578>] poll_freewait+0x48/0x60
[<c0162a82>] do_select+0x422/0x4a0
[<f8ba9adf>] snd_pcm_playback_ioctl1+0x5f/0x4d0 [snd_pcm]
[<f8baa9ec>] snd_pcm_kernel_playback_ioctl+0x2c/0x40 [snd_pcm]
[<f8bbcbf5>] snd_pcm_oss_ioctl+0xa65/0xbe0 [snd_pcm_oss]
[<c0161c0a>] do_ioctl+0x2a/0x80
[<c0161cb2>] vfs_ioctl+0x52/0x2b0
[<c016392b>] sys_select+0x11b/0x200
[<c0161f55>] sys_ioctl+0x45/0x70
[<c0102b45>] syscall_call+0x7/0xb
Can anybody shed some insight into this?
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