cvs commit: src/sys/dev/sound/pci/hda hdac.c

[Alexandre "Sunny" Kovalenko]

On Fri, 2007-03-16 at 20:47 +0800, Rong-en Fan wrote:
> On 3/16/07, Ariff Abdullah <ariff at freebsd.org> wrote:
> > ariff       2007-03-15 17:23:39 UTC
> >
> >   FreeBSD src repository
> >
> >   Modified files:
> >     sys/dev/sound/pci/hda hdac.c
> >   Log:
> >   NOOP (for now) for hdac_dma_nocache(). It is a wrong way to enforce
> >   cache coherency, besides of causing train wreck in other places
> >   (especially on amd64, possibly on i386).
> >
> >   Discussed with: kib@, rafan@
> >   Tested by:      rafan@
> 
> Thank you! Now I can really use this laptop.
> 
> By the way, I guess this may also solve these two problems reported
> on -current some time ago:
> 
> Bruno Damour: buildworld with core2 duo fails with page fault while in
> kernel mode
> 
> Alexandre Sunny Kovalenko: -CURRENT panics on intensive fs operations
Unfortunately (or fortunately, depending on how you look at things) I
can no longer panic my system with -CURRENT from March 8th. Instead, I
get make to dump core while doing (cd /usr/ports; make clean). This does
not change with snd_hda being loaded. I will cvsup and run overnight
test just to see if anything changes with this commit.

Alexandre "Sunny" Kovalenko.