Re: 5.0 and Thinkpad T20: ACPI related panics

On Wed, 22 Jan 2003, Lukas Ertl wrote:

> I think I've found the culprit: it's the sound device. If I remove "device
> pcm" from the kernel, I can suspend/resume after switching to a different
> vty (suspend in X still deadlocks, though).

Ok guys,

I now have a partial solution for this problem. Please take a look at
<http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/sound/pci/csa.c>.

As you can see, there was a code change in rev. 1.24 that was MFC'd later,
but the merged code was removed from the stable tree because it caused
panics. That's exactly what has hit me. I removed the few lines from
csa.c, and now I can happily suspend/resume, but only if I

1) switch to a non-X vty (easy with the vidcontrol/ampd.conf hack)
2) suspend by either pushing the suspend button or closing the lid.

Using "zzz" from an xterm or using wmapm to suspend still locks the box
up, I don't know why.

So I ask if it is possible to revert csa.c to rev. 1.23?

best regards,
le

-- 
Lukas Ertl                             eMail: [email protected]
UNIX-Systemadministrator               Tel.:  (+43 1) 4277-14073
Zentraler Informatikdienst (ZID)       Fax.:  (+43 1) 4277-9140
der Universität Wien                   http://mailbox.univie.ac.at/~le/

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