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SubjectRe: [linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch
Lee Revell <> wrote:
> discovered I can reliably produce a large XRUN by toggling Caps Lock,
> Scroll Lock, or Num Lock. This is with 2.6.8-rc1-mm1 + voluntary
> preempt

That's odd. I wonder if the hardware is sick. What is the duration is the
underrun? The info you sent didn't include that.

> (I modified the patch by hand to apply on this kernel, as
> 2.6.8-rc2 disables my network card).

eh? That's a rather more serious problem. Does the via-rhine.c from
2.6.8-rc1-mm1 work OK if you move it into 2.6.8-rc2?

> ALSA /home/rlrevell/cvs/alsa-driver/alsa-kernel/core/pcm_lib.c:169: XRUN: pcmC0D0p
> [<c01066f7>] dump_stack+0x17/0x20
> [<de952477>] snd_pcm_period_elapsed+0x2c7/0x400 [snd_pcm]
> [<de962477>] snd_emu10k1_interrupt+0x337/0x3c0 [snd_emu10k1]
> [<c0107913>] handle_IRQ_event+0x33/0x60
> [<c0107c55>] do_IRQ+0xa5/0x170
> [<c01062b8>] common_interrupt+0x18/0x20
> [<c01d3f7f>] __delay+0xf/0x20
> [<c021881a>] atkbd_sendbyte+0x5a/0xa0
> [<c0218a35>] atkbd_command+0x1d5/0x200
> [<c0218bcb>] atkbd_event+0x16b/0x200
> [<c0215a95>] input_event+0x115/0x3d0
> [<c01ecaeb>] kbd_bh+0xbb/0x160
> [<c011a554>] tasklet_action+0x44/0x70
> [<c011a303>] __do_softirq+0x83/0x90
> [<c011a345>] do_softirq+0x35/0x40
> [<c0107cc5>] do_IRQ+0x115/0x170
> [<c01062b8>] common_interrupt+0x18/0x20
> [<c014b95e>] sys_read+0x2e/0x50
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