ACPI mpsafe patch for testing

Nate Lawson nate at
Thu Aug 12 11:59:52 PDT 2004

Marcel Moolenaar wrote:

> On Thu, Aug 12, 2004 at 10:21:17AM -0700, Nate Lawson wrote:
>>I plan to commit the mpsafe patch for acpi on Friday morning.  No 
>>problems so far for testers and I've run it for weeks (versions of it 
>>for months).  The only change I've made is to update it against commits 
>>so it will apply cleanly.
>>Please test if you get a chance.  Again the URL:
> ia64: is running with the patch. I also performed
> a reboot without problems.
> Note that pluto1 runs an UP kernel. Are there any SMP specific MD
> code paths you think I should test or is it sufficient that SMP is
> tested on i386 (or amd64)?

For ia64, I was most concerned about alignment issues.  So anything (UP 
or SMP) that exercises code paths is helpful.  The only SMP-specific 
things to test are power-off on shutdown.  Run it a bunch of times to be 
sure that it continues to work.  Note this isn't in the acpi locking 
path but ACPI-CA has its own locks which are now not redundantly covered 
by Giant.  It has been running this way in Linux for a year or so. 
Still, it's good to have that test coverage too.


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