Date: Fri, 2 Jul 2010 13:15:55 +0200 From: David Naylor <naylor.b.david@gmail.com> To: freebsd-current@freebsd.org Subject: [regression] snd_hda and "channel dead" Message-ID: <201007021315.59575.naylor.b.david@gmail.com>
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[-- Attachment #1 --] Hi, I'm having a problem with sound via hda driver. After a while of playing sound it stops with: pcm0: chn_write(): pcm0:virtual:dsp0.vp0: play interrupt timeout, channel dead showing up in dmesg. After that no sound is played and Amarok skips through tracks quickly (it "plays" sounds to fast)... After setting dev.hdac.0.polling=1 sound works again. This is with a custom kernel that has sound compiled in and without debugging options. A known good kernel is from ~ 13 May while the bad kernel is ~ 1 day old. Some further information: # dmesg | grep hdac hdac0: <NVidia MCP51 High Definition Audio Controller> mem 0xe7000000-0xe7003fff irq 21 at device 16.1 on pci0 hdac0: HDA Driver Revision: 20100226_0142 hdac0: [ITHREAD] hdac0: HDA Codec #0: Realtek ALC888 pcm0: <HDA Realtek ALC888 PCM #0 Analog> at cad 0 nid 1 on hdac0 pcm1: <HDA Realtek ALC888 PCM #1 Analog> at cad 0 nid 1 on hdac0 pcm2: <HDA Realtek ALC888 PCM #2 Digital> at cad 0 nid 1 on hdac0 hdac0: <NVidia MCP51 High Definition Audio Controller> mem 0xe7000000-0xe7003fff irq 21 at device 16.1 on pci0 hdac0: HDA Driver Revision: 20100226_0142 hdac0: [ITHREAD] hdac0: HDA Codec #0: Realtek ALC888 pcm0: <HDA Realtek ALC888 PCM #0 Analog> at cad 0 nid 1 on hdac0 pcm1: <HDA Realtek ALC888 PCM #1 Analog> at cad 0 nid 1 on hdac0 pcm2: <HDA Realtek ALC888 PCM #2 Digital> at cad 0 nid 1 on hdac0 and # grep '^C.*FLAGS' /etc/make.conf CFLAGS+= -DNDEBUG Is there anything I can do to assist diagnostics? Regards, David [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (FreeBSD) iEYEABECAAYFAkwtym8ACgkQUaaFgP9pFrIOwQCeJo7Z0ZYCkkhcIKowVwvgo2dc n8oAnRuc5SrJMmlk8N8yPRAF0FEJvekT =u8Jl -----END PGP SIGNATURE-----help
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