kern/59248: 4.9-RELEASE, ACPI Panic with Dell Latitude D600

[Andre Grosse Bley]

The following reply was made to PR kern/59248; it has been noted by GNATS.

From: Andre Grosse Bley <gandalf at nm.ruhr-uni-bochum.de>
To: FreeBSD-gnats-submit at FreeBSD.org, freebsd-bugs at FreeBSD.org
Cc:  
Subject: Re: kern/59248: 4.9-RELEASE, ACPI Panic with Dell Latitude D600
Date: Thu, 13 Nov 2003 12:15:02 +0100

 John Baldwin <jhb at FreeBSD.org> said the following on freebsd-hackers:
 
 > Ah, the problem is that ACPI tries to sleep from a task, which is not safe
 > to do.  This is not easy to fix. :(
 
 Actually, it may not be too hard.  In current, ACPI uses its own thread
 to run the tasks in, so stable would need the same sort of thing.
 Basically, ACPI needs to start up a kproc and needs to have its own
 taskqueue again that uses this kproc for its execution context.