Hi,
I have major sound skipping problems on FreeBSD 6.0. I checked the
mailing list archives and found a related thread:
http://lists.freebsd.org/pipermail/freebsd-current/2005-June/051103.html
To quote Jeff Roberson:
> I have a patch that should greatly improve the sound skipping problems
> people have under heavy io load. Several people sent me traces that
> showed the buf daemon running for hundreds of milliseconds with Giant
> held, which can hold up the pcm code. The patch is available at:
>
> http://www.chesapeake.net/~jroberson/flushbuf.diff
The problems are definately correlated to io load, however I can't say
that I have HEAVY io loads. A simple: # sync;sync;sync; will already
cause the sound to skip.
I have DMA enabled on all drives, and it seems the above patch is
already merged into FreeBSD 6.0-STABLE. This leaves me at a loss, and I
don't know what else to try...
Does anybody have any ideas of what I could do to solve this problem?
Thanks in advance,
Sebastiaan van Erk
[EMAIL PROTECTED](ttyp9:92:0):~# uname -a
FreeBSD piglet.sebster.com 6.0-STABLE FreeBSD 6.0-STABLE #1: Sat Nov 5
23:42:18 CET 2005
[EMAIL PROTECTED]:/usr/obj/usr/src/sys/PIGLET i386
[EMAIL PROTECTED](ttyp9:93:0):~# cat /dev/sndstat
FreeBSD Audio Driver (newpcm)
Installed devices:
pcm0: <VIA VT8237> at io 0xec00 irq 22 kld snd_via8233 (5p/1r/0v
channels duplex default)
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