Choppy sound with nForce4 chipset during network activity
Jos Backus
jos at catnook.com
Thu Jul 12 16:44:03 UTC 2007
Hi. I am noticing choppy sound playback during network activity. Could this
be related to the IRQ sharing between pcm0 and nfe0?
lizzy:~% uname -a
FreeBSD lizzy.catnook.local 7.0-CURRENT FreeBSD 7.0-CURRENT #6: Sun Jul 8
14:41:29 PDT 2007 root at lizzy.catnook.local:/usr/obj/usr/src/sys/LIZZY
i386
lizzy:~% cat /dev/sndstat
FreeBSD Audio Driver (newpcm: 32bit 2007061600/i386)
Installed devices:
pcm0: <nVidia nForce4> at io 0xdc00, 0xe000 irq 23 bufsz 32768 kld snd_ich
[MPSAFE] (1p:3v/1r:1v channels duplex default)
lizzy:~% vmstat -i
interrupt total rate
irq1: atkbd0 9201 0
irq4: uart0 129 0
irq6: fdc0 1 0
irq12: psm0 394582 3
irq22: atapci2 2064956 16
irq23: pcm0 nfe0 3970028 32
cpu0: timer 244997857 1999
Total 251436754 2052
lizzy:~%
--
Jos Backus
jos at catnook.com
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