[linux-audio-dev] Re: desktop and multimedia as an afterthought?

On my system xruns seem related to the keyboard. I get xruns on ~8.079 seconds boundaries when the keyboard is in use, regardless of the load. My usual test is running jack with 2 periods of 64 samples and no client, and keep a key pressed. Those latencytest graphs give an idea of the problem : http://www.undata.org/~thomas/latencytest/index.html Here are the xrun_debug reports :

For the intel8x0 : XRUN: pcmC1D0p Stack pointer is garbage, not printing trace Unexpected hw_pointer value [1] (stream = 1, delta: -16, max jitter = 64): wrong interrupt acknowledge? [<c0105f3e>] dump_stack+0x1e/0x30 [<c033240d>] snd_pcm_period_elapsed+0x1cd/0x420 [<c03578cc>] snd_intel8x0_interrupt+0x1fc/0x260 [<c010739b>] handle_IRQ_event+0x3b/0x70 [<c0107824>] do_IRQ+0x194/0x1b0 [<c0105ac4>] common_interrupt+0x18/0x20 [<c0107754>] do_IRQ+0xc4/0x1b0 [<c0105ac4>] common_interrupt+0x18/0x20 [<c0108126>] do_softirq+0x46/0x60 [<c01077d9>] do_IRQ+0x149/0x1b0 [<c0105ac4>] common_interrupt+0x18/0x20 [<c01030f4>] cpu_idle+0x34/0x40 [<c053c809>] start_kernel+0x169/0x190 [<c010019f>] 0xc010019f ======================= [<c0105f3e>] dump_stack+0x1e/0x30 [<c033240d>] snd_pcm_period_elapsed+0x1cd/0x420 [<c03578cc>] snd_intel8x0_interrupt+0x1fc/0x260 [<c010739b>] handle_IRQ_event+0x3b/0x70 [<c0107824>] do_IRQ+0x194/0x1b0 [<c0105ac4>] common_interrupt+0x18/0x20 [<c0107754>] do_IRQ+0xc4/0x1b0 [<c0105ac4>] common_interrupt+0x18/0x20 [<c0108126>] do_softirq+0x46/0x60 [<c01077d9>] do_IRQ+0x149/0x1b0 [<c0105ac4>] common_interrupt+0x18/0x20 [<c01030f4>] cpu_idle+0x34/0x40 [<c053c809>] start_kernel+0x169/0x190