HP LH3000r hangs on boot with ACPI enabled

[Nate Lawson]

John Baldwin wrote:
> On Wednesday 21 February 2007 16:47, Moore, Robert wrote:
>> Nate,
>>
>> We have tried to keep ACPICA as OS-independent as possible. In the case
>> of spinlocks, you can easily implement the interfaces with whatever is
>> appropriate (or available) for your OS.
>>
>> We felt that we needed to split the mutex interfaces into
>> mutex/spinlocks for those hosts that have these different types of
>> synchronization mechanisms.
>>
>> Certainly, I would suggest that you keep up-to-date with the latest
>> ACPICA as we continue to develop and debug the code.
> 
> Since the ACPI interrupt is run in an ithread, you can probably just
> ignore the IRQL stuff as garbage and use a regular mutex Nate.  Also,
> this bug report was from 6.2, so it was actually from an older version
> of ACPICA.  Can't recall what is holding up the MFC of 20051021 to 6.x.

Yes, I'm hoping we can do that.  Jung-uk Kim is preparing a patch of
20070126 so hopefully we can test and integrate that.

We didn't MFC 20051021 due to a memory leak on some systems (bad
refcount).  That was fixed a few revisions later, but I remember a few
2006 versions having other problems (hanging on boot) and then I ran out
of time to review/debug the patches.

Hopefully 20070126 is good and we can commit it quickly, then MFC after
a month.

-- 
Nate