panics due to buggy ACPI in Dell Latitude E6530?

[kron]

On 2013/03/05 14:13, Andriy Gapon wrote:
> on 03/03/2013 20:26 kron said the following:
>> #5  0xffffffff806abc53 in calltrap () at exception.S:228
>> #6  0xffffffff802bc850 in AcpiOsAcquireObject (Cache=0xfffffe00093a14a0)
>>     at /usr/src/sys/contrib/dev/acpica/utilities/utcache.c:310
>> #7  0xffffffff802bf481 in AcpiUtCreateInternalObjectDbg (
>>     ModuleName=0xffffffff8071c1a6 "dsutils", LineNumber=703,
>> ComponentId=64,.
>>     Type=1) at /usr/src/sys/contrib/dev/acpica/utilities/utobject.c:437
> 
> Did this panic happen even with hw.acpi.osname="Linux" or did you revert that to
> reproduce the panic?
> 
> In either case, could you please try the following patch (it is against recent
> stable/9) ?
> http://people.freebsd.org/~avg/OsdSynch-9.diff
> 
> P.S. this is not a final version of the patch, but rather a work in progress.
> 

Hi Andriy,

I'm sorry to say the patch didn't make a difference. The crashdump
and ACPI errors from /var/log/messages look the same as before.
However, I found a new message

ACPI Warning: Expected EISAID is larger than 32 bits:
0xFFFFFFFFFFFFFFFF, truncating (20110527/exutils-440)

just before the flood of

ACPI Error: No object attached to node 0xfffffe000849d980
(20110527/exresnte-138)
ACPI Error: Method execution failed [\_SB_.BAT0._HID] (Node
0xfffffe000849d980), AE_AML_NO_OPERAND (20110527/uteval-113)

until the panic (general protection fault) happened.

BR
Oli