cvs commit: src/sys/dev/sound/isa ad1816.c ess.c mss.c sb16.c sb8.c src/sys/dev/sound/pci au88x0.c aureal.c csapcm.c ds1.c emu10k1.c es137x.c fm801.c ich.c maestro3.c solo.c t4dwave.c via8233.c via82c686.c

[Pyun YongHyeon]

On Wed, Oct 13, 2004 at 10:08:04AM -0400, Brian Fundakowski Feldman wrote:

 > >   Log:
 > >   Audio drivers failed to detect failure condition and attempted to
 > >   assign DMA address to the wrong address. It can cause system lockup
 > >   or other mysterious errors. Since most sound cards requires low DMA
 > >   address(BUS_SPACE_MAXADDR_24BIT) sndbuf_alloc() would fail when the
 > >   audio driver is loaded after long running of operations.
 > >   
 > >   Approved by:    jake (mentor)
 > >   Reviewed by:    truckman, matk
 > 
 > Good job fixing all of these; do you notice that they succeed "more
 > often" with the new contigmalloc(9)? (It is the backend of the busdma
 > physical memory allocations.)
 > 

Since I have very small set of sound hardware I don't know
whether it helped or not. But I saw a mail which sounds like
a DMA buffer allocation issue.
http://lists.freebsd.org/pipermail/freebsd-multimedia/2004-September/001382.html

There is an another patch for sndbuf_alloc(). I'm waiting for
Scott's comments.

-- 
Regards,
Pyun YongHyeon
http://www.kr.freebsd.org/~yongari	|	yongari at freebsd.org