Re: [linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch

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Subject: Re: [linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch
From: Andrew Morton (akpm_AT_osdl.org)
Date: Tue Jul 13 2004 - 11:43:16 EEST

Lee Revell <rlrevell_AT_joe-job.com> wrote:
>
> Jul 13 04:27:50 mindpipe kernel: ALSA /usr/src/alsa-cvs-1.0.5/alsa-driver/alsa-kernel/core/pcm_lib.c:169: XRUN: pcmC0D0p
> Jul 13 04:27:50 mindpipe kernel: [__crc_totalram_pages+1387264/5353478] snd_pcm_period_elapsed+0x2ca/0x410 [snd_pcm]
> Jul 13 04:27:50 mindpipe kernel: [group_send_sig_info+101/144] group_send_sig_info+0x65/0x90
> Jul 13 04:27:50 mindpipe kernel: [__crc_totalram_pages+1455070/5353478] snd_emu10k1_interrupt+0x3c8/0x480 [snd_emu10k1]
> Jul 13 04:27:50 mindpipe kernel: [handle_IRQ_event+49/96] handle_IRQ_event+0x31/0x60
> Jul 13 04:27:50 mindpipe kernel: [do_IRQ+155/352] do_IRQ+0x9b/0x160
> Jul 13 04:27:50 mindpipe kernel: [common_interrupt+24/32] common_interrupt+0x18/0x20
> Jul 13 04:27:50 mindpipe kernel: [_mmx_memcpy+141/384] _mmx_memcpy+0x8d/0x180
> Jul 13 04:27:50 mindpipe kernel: [scrup+242/320] scrup+0xf2/0x140
> Jul 13 04:27:50 mindpipe kernel: [lf+96/112] lf+0x60/0x70
> Jul 13 04:27:50 mindpipe kernel: [do_con_trol+2907/3360] do_con_trol+0xb5b/0xd20
> Jul 13 04:27:50 mindpipe kernel: [do_con_write+1128/1888] do_con_write+0x468/0x760
> Jul 13 04:27:50 mindpipe kernel: [con_put_char+51/64] con_put_char+0x33/0x40

framebuffer scrolling inside lock_kernel(). Tricky. Suggest you use X or
vgacon. You can try removing the lock_kernel() calls from do_tty_write(),
but make sure you're wearing ear protection.

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