ACPI related LOR and panic

Jung-uk Kim jkim at
Tue Apr 17 17:39:36 UTC 2007

On Monday 16 April 2007 02:22 pm, Ed Maste wrote:
> After upgrading my laptop to -CURRENT as of last Friday I get the
> LOR and panic below.  The previous kernel was from Feb. 14th and is
> fine.
> Sleeping on "acsem" with the following non-sleepable locks held:
> exclusive sleep mutex ACPI EC lock r = 0 (0xc2eb4db4) locked @
> /d2/emaste/HEAD/src/sys/modules/acpi/acpi/../../../dev/acpica/acpi_
>ec.c:323 exclusive sleep mutex acpi subsystem GPE lock r = 0
> (0xc2e8db00) locked @
> /d2/emaste/HEAD/src/sys/modules/acpi/acpi/../../../dev/acpica/Osd/O
>sdSynch.c:377 KDB: stack backtrace:

--- >8 --- SNIP!!! --- >8 ---

We are aware of that issue and actively working on it.  Unfortunately, 
it is not a trivial problem.  Please be patient.


Jung-uk Kim

More information about the freebsd-current mailing list