Date: Thu, 12 Jul 2007 09:17:43 -0700 From: Jos Backus <jos@catnook.com> To: multimedia@freebsd.org Subject: Choppy sound with nForce4 chipset during network activity Message-ID: <20070712161743.GA51621@lizzy.catnook.local>
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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@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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