Date: Wed, 12 Nov 2003 12:08:12 -0500 (EST) From: John Baldwin <jhb@FreeBSD.org> To: Andre Grosse Bley <gandalf-hackers@nm.ruhr-uni-bochum.de> Cc: freebsd-hackers@FreeBSD.org Subject: Re: 4.9-RELEASE, ACPI and DELL Latitude D600 Message-ID: <XFMail.20031112120812.jhb@FreeBSD.org> In-Reply-To: <20031112104458.GA94744@nm.ruhr-uni-bochum.de>
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On 12-Nov-2003 Andre Grosse Bley wrote: >> > 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. > > So - as I am not a experienced kernel hacker - there is no easy solution > for me to 'fix' this panic? Should I open a PR? A PR might be a good idea. The basic details are that ACPI in 4.x needs to create a kernel process to service it's private taskqueue and then use this taskqueue instead of the system taskqueue to service events. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
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