Date: 12 Feb 2003 08:46:09 -0600 From: Craig Boston <craig@xfoil.gank.org> To: current@freebsd.org Subject: dsp "device busy" (me too) vchans weirdness Message-ID: <1045061169.91280.17.camel@owen1492.uf.corelab.com>
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I remember a couple of posts about this problem; but don't recall (and am unable to find in the archives) if there was ever any resolution. Anyway, this just started on a RELENG_5_0 box this morning -- been working fine up until now. I noticed that /dev/dsp wasn't being cloned, so I went about trying individual devices... $ esd -d /dev/dsp0.1 - using device /dev/dsp0.1 /dev/dsp0.1: Device busy $ esd -d /dev/dsp0.2 - using device /dev/dsp0.2 /dev/dsp0.2: Device busy $ fstat /dev/dsp0.0 $ fstat /dev/dsp0.1 $ fstat /dev/dsp0.2 $ cat /dev/dsp0.3 cat: /dev/dsp0.3: Device busy etc... I've double checked and there is NOTHING running that's touching any of the sound devices (which the fstat confirms). Oddly enough, when I was randomly 'cat'-ing sound devices, one of them returned "Operation not supported by device". It only did this once, and then went back to "Device busy" every time after that. $ dmesg | grep pcm pcm0: <Intel 82801BA (ICH2)> port 0xcc40-0xcc7f,0xc800-0xc8ff irq 10 at device 31.5 on pci0 pcm0: measured ac97 link rate at 55934 Hz $ cat /dev/sndstat FreeBSD Audio Driver (newpcm) Installed devices: pcm0: <Intel 82801BA (ICH2)> at io 0xc800, 0xcc40 irq 10 bufsz 16384 (1p/1r/4v channels duplex default) $ sysctl hw.snd hw.snd.targetirqrate: 32 hw.snd.report_soft_formats: 1 hw.snd.verbose: 1 hw.snd.unit: 0 hw.snd.maxautovchans: 0 hw.snd.pcm0.buffersize: 16384 hw.snd.pcm0.vchans: 4 hw.snd.pcm0.ac97rate: 55934 I'm not using maxautovchans because that seems to cause random reboots on this hardware (happens with two Dell towers, both with the ICH2 chip). Even weirder still, during the course of writing this mail, dsp0.[1-4] have spontaneously started working again. 0.0 still reports device busy, though that may be normal since the vchans are active. I was going to try changing the number of vchans to see if it had any effect, but since it's working for now I'll try that next time it happens. Craig To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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