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    SubjectRe: Ext3 vs. ReiserFS results (was Re: XRUN traces)
    Lee Revell <rlrevell@joe-job.com> wrote:
    >
    > Jul 13 19:51:45 mindpipe kernel: ALSA /usr/src/alsa-cvs-1.0.5/alsa-driver/alsa-kernel/core/pcm_lib.c:169: XRUN: pcmC0D0p
    > Jul 13 19:51:45 mindpipe kernel: [dump_stack+23/32] dump_stack+0x17/0x20
    > Jul 13 19:51:45 mindpipe kernel: [__crc_totalram_pages+562733/3558647] snd_pcm_period_elapsed+0x2c7/0x400 [snd_pcm]
    > Jul 13 19:51:45 mindpipe kernel: [__crc_totalram_pages+631725/3558647] snd_emu10k1_interrupt+0x377/0x400 [snd_emu10k1]
    > Jul 13 19:51:45 mindpipe kernel: [handle_IRQ_event+51/96] handle_IRQ_event+0x33/0x60
    > Jul 13 19:51:45 mindpipe kernel: [do_IRQ+165/368] do_IRQ+0xa5/0x170
    > Jul 13 19:51:45 mindpipe kernel: [common_interrupt+24/32] common_interrupt+0x18/0x20
    > Jul 13 19:51:45 mindpipe kernel: [d_callback+29/64] d_callback+0x1d/0x40
    > Jul 13 19:51:45 mindpipe kernel: [rcu_do_batch+62/80] rcu_do_batch+0x3e/0x50
    > Jul 13 19:51:45 mindpipe kernel: [rcu_process_callbacks+150/256] rcu_process_callbacks+0x96/0x100
    > Jul 13 19:51:45 mindpipe kernel: [tasklet_action+68/112] tasklet_action+0x44/0x70
    > Jul 13 19:51:45 mindpipe kernel: [__do_softirq+131/144] __do_softirq+0x83/0x90
    > Jul 13 19:51:45 mindpipe kernel: [do_softirq+53/64] do_softirq+0x35/0x40
    > Jul 13 19:51:45 mindpipe kernel: [do_IRQ+277/368] do_IRQ+0x115/0x170
    > Jul 13 19:51:45 mindpipe kernel: [common_interrupt+24/32] common_interrupt+0x18/0x20
    > Jul 13 19:51:45 mindpipe kernel: [poll_freewait+46/80] poll_freewait+0x2e/0x50
    > Jul 13 19:51:45 mindpipe kernel: [sys_poll+472/544] sys_poll+0x1d8/0x220

    This one's going to be a problem. It's due to RCU freeing a large number
    of dentries in one hit.
    -
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