On Wednesday 16 March 2011 07:49 pm, Moore, Robert wrote: > The latest version of acpica released today (20110316) should fix > this issue for you.
Cool! I just committed it on HEAD now. Please try it and let us know. Thanks! Jung-uk Kim > Bob > > >-----Original Message----- > >From: Jung-uk Kim [mailto:[email protected]] > >Sent: Wednesday, March 16, 2011 3:22 PM > >To: Andriy Gapon > >Cc: Ilya A. Arhipov; Moore, Robert; [email protected] > >Subject: Re: Panic after update kernel > > > >On Wednesday 16 March 2011 11:12 am, Andriy Gapon wrote: > >> on 16/03/2011 16:18 Ilya A. Arhipov said the following: > >> > 2011/3/16 Andriy Gapon <[email protected] > >> > <mailto:[email protected]>> > >> > > >> > on 16/03/2011 10:52 Ilya A. Archipov said the following: > >> > > and see: > >> > > http://imm.io/4nzZ > >> > > > >> > > what information still needs to provide? > >> > > >> > 'bt' command output please (a screenshot is fine). > >> > > >> > -- > >> > Andriy Gapon > >> > > >> > > >> > boot: > >> > http://imm.io/4nTZ > >> > bt: > >> > http://imm.io/4nTS <-first > >> > http://imm.io/4nUd <-last > >> > >> So the panic is that we acquire a regular (non-spin) mutex in an > >> interrupt context. Not sure if this is a FreeBSD issue > >> (implementation of ACPI semaphore) or some ACPICA issue (e.g. > >> doing something wrong in an interrupt handler). > >> > >> Jung-uk, Robert, can you please take a look? > > > >_GL_ creates a semaphore and this semaphore is exclusively used in > >interrupt context. Also, it is always used to wait forever if it > >cannot acquire the necessary global lock. This is really bad for > > us because a semaphore requires a lock object to prevent sleeping > > forever without being waken up. Only workaround I can think of > > is to turn AcpiOsWaitSemaphore() & AcpiOsSignalSemaphore() into > > tsleep(9) & wakeup(9) because that's exactly what it wants to do, > > it seems. > > > >JK > > _______________________________________________ > [email protected] mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-acpi > To unsubscribe, send any mail to > "[email protected]" _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-acpi To unsubscribe, send any mail to "[email protected]"
