snd_hda works on i386, fails on amd64 (RELENG_7)

Rick C. Petty rick-freebsd2008 at
Sun Jun 14 05:02:18 UTC 2009


On Fri, Jun 05, 2009 at 11:30:20AM +0300, Alexander Motin wrote:
> Rick C. Petty wrote:
> > 
> > Any help would be appreciated.  Thanks in advance,
> > 
> > usable memory = 8575410176 (8178 MB)
> > avail memory  = 8273821696 (7890 MB)
> Could you try to limit amount of system RAM to less then 3.5GB? Hardware

I've tried this, no luck.

> or driver may have issues with support of more then 32bit addresses. I
> have successfully used driver on system with 4GB RAM, so I think that it
> may be a hardware issue.

What do you suggest?  This works just fine in i386.

> Also you may try to change
> 	sc->support_64bit = HDA_FLAG_MATCH(gcap, HDAC_GCAP_64OK);
> line to
> 	sc->support_64bit = 0;
> , to strictly limit driver to 32bit addresses ignoring hardware
> capabilities.

I tried this as well, no luck.

I can dual-boot this system into either i386 or amd64.  Do you (or anyone
else) have any suggestions?  I'm willing to patch my kernels (I'm following
7-stable) but I have no idea where to start.  I would appreciate it if
somebody would give me some direction here.

-- Rick C. Petty

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