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

Andrew Morton wrote : Now I get : for the intel8x0 : XRUN: pcmC1D0p [<c0105f3e>] dump_stack+0x1e/0x30 [<c0332561>] snd_pcm_period_elapsed+0x2e1/0x420 [<c035790c>] snd_intel8x0_interrupt+0x1fc/0x260 [<c010739b>] handle_IRQ_event+0x3b/0x70 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 [<c0146728>] do_anonymous_page+0x118/0x190 [<c01467ff>] do_no_page+0x5f/0x300 [<c0146c92>] handle_mm_fault+0xe2/0x190 [<c01456a0>] get_user_pages+0x150/0x380 [<c0146e07>] make_pages_present+0x87/0xb0 [<c01472a9>] mlock_fixup+0xa9/0xc0 [<c01475ef>] do_mlockall+0x7f/0xa0 [<c01476cb>] sys_mlockall+0xbb/0xc0 [<c0105157>] syscall_call+0x7/0xb Unexpected hw_pointer value [1] (stream = 1, delta: -50, max jitter = 64): wrong interrupt acknowledge? [<c0105f3e>] dump_stack+0x1e/0x30 [<c033244d>] snd_pcm_period_elapsed+0x1cd/0x420 [<c035790c>] snd_intel8x0_interrupt+0x1fc/0x260 [<c010739b>] handle_IRQ_event+0x3b/0x70 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 [<c01201ab>] do_softirq+0x2b/0x30 [<c0107798>] do_IRQ+0x108/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 Unexpected hw_pointer value [1] (stream = 0, delta: -4, max jitter = 64): wrong interrupt acknowledge? [<c0105f3e>] dump_stack+0x1e/0x30 [<c033244d>] snd_pcm_period_elapsed+0x1cd/0x420 [<c035790c>] snd_intel8x0_interrupt+0x1fc/0x260 [<c010739b>] handle_IRQ_event+0x3b/0x70 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 [<c01201ab>] do_softirq+0x2b/0x30 [<c0107798>] do_IRQ+0x108/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 XRUN: pcmC1D0p [<c0105f3e>] dump_stack+0x1e/0x30 [<c0332561>] snd_pcm_period_elapsed+0x2e1/0x420 [<c035790c>] snd_intel8x0_interrupt+0x1fc/0x260 [<c010739b>] handle_IRQ_event+0x3b/0x70 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 Unexpected hw_pointer value [1] (stream = 1, delta: -22, max jitter = 64): wrong interrupt acknowledge? [<c0105f3e>] dump_stack+0x1e/0x30 [<c033244d>] snd_pcm_period_elapsed+0x1cd/0x420 [<c035790c>] snd_intel8x0_interrupt+0x1fc/0x260 [<c010739b>] handle_IRQ_event+0x3b/0x70 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 [<c01201ab>] do_softirq+0x2b/0x30 [<c0107798>] do_IRQ+0x108/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 [<c01030f4>] cpu_idle+0x34/0x40 [<c053e809>] start_kernel+0x169/0x190 [<c010019f>] 0xc010019f XRUN: pcmC1D0p [<c0105f3e>] dump_stack+0x1e/0x30 [<c0332561>] snd_pcm_period_elapsed+0x2e1/0x420 [<c035790c>] snd_intel8x0_interrupt+0x1fc/0x260 [<c010739b>] handle_IRQ_event+0x3b/0x70 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 XRUN: pcmC1D0p [<c0105f3e>] dump_stack+0x1e/0x30 [<c0332561>] snd_pcm_period_elapsed+0x2e1/0x420 [<c035790c>] snd_intel8x0_interrupt+0x1fc/0x260 [<c010739b>] handle_IRQ_event+0x3b/0x70 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 for the hdsp: XRUN: pcmC2D0c [<c0105f3e>] dump_stack+0x1e/0x30 [<c0332561>] snd_pcm_period_elapsed+0x2e1/0x420 [<c0368ed4>] snd_hdsp_interrupt+0x174/0x180 [<c010739b>] handle_IRQ_event+0x3b/0x70 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 [<c01467ff>] do_no_page+0x5f/0x300 [<c0146c92>] handle_mm_fault+0xe2/0x190 [<c01456a0>] get_user_pages+0x150/0x380 [<c0146e07>] make_pages_present+0x87/0xb0 [<c01487f7>] do_mmap_pgoff+0x467/0x6c0 [<c010ba10>] sys_mmap2+0xa0/0xe0 [<c0105157>] syscall_call+0x7/0xb XRUN: pcmC2D0c [<c0105f3e>] dump_stack+0x1e/0x30 [<c0332561>] snd_pcm_period_elapsed+0x2e1/0x420 [<c0368ed4>] snd_hdsp_interrupt+0x174/0x180 [<c010739b>] handle_IRQ_event+0x3b/0x70 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 [<c0145633>] get_user_pages+0xe3/0x380 [<c0146e07>] make_pages_present+0x87/0xb0 [<c01487f7>] do_mmap_pgoff+0x467/0x6c0 [<c010ba10>] sys_mmap2+0xa0/0xe0 [<c0105157>] syscall_call+0x7/0xb XRUN: pcmC2D0c [<c0105f3e>] dump_stack+0x1e/0x30 [<c0332561>] snd_pcm_period_elapsed+0x2e1/0x420 [<c0368ed4>] snd_hdsp_interrupt+0x174/0x180 [<c010739b>] handle_IRQ_event+0x3b/0x70 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 [<c01201ab>] do_softirq+0x2b/0x30 [<c0107798>] do_IRQ+0x108/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 [<c01030f4>] cpu_idle+0x34/0x40 [<c053e809>] start_kernel+0x169/0x190 [<c010019f>] 0xc010019f XRUN: pcmC2D0c [<c0105f3e>] dump_stack+0x1e/0x30 [<c0332561>] snd_pcm_period_elapsed+0x2e1/0x420 [<c0368ed4>] snd_hdsp_interrupt+0x174/0x180 [<c010739b>] handle_IRQ_event+0x3b/0x70 [<c0107726>] do_IRQ+0x96/0x150 [<c0105ac4>] common_interrupt+0x18/0x20 [<c0144fc5>] zap_pte_range+0x145/0x240 [<c0145125>] zap_pmd_range+0x65/0x90 [<c01451a5>] unmap_page_range+0x55/0x80 [<c01452e4>] unmap_vmas+0x114/0x1e0 [<c0149845>] exit_mmap+0x85/0x170 [<c0119ebf>] mmput+0x6f/0xb0 [<c011e6c4>] do_exit+0x114/0x470 [<c011eaca>] do_group_exit+0x3a/0xb0 [<c012700e>] get_signal_to_deliver+0x25e/0x370 [<c0104eea>] do_signal+0x6a/0x100 [<c0104fb9>] do_notify_resume+0x39/0x3c [<c01051a2>] work_notifysig+0x13/0x15 Thomas