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SubjectRe: 2.2.0-pre8: lock up under high swap and SCSI-IO load
>>>>> "Andrea" == Andrea Arcangeli <andrea@e-mind.com> writes:

Andrea> On Sat, 16 Jan 1999, Steffen Zahn wrote:
>> After some time all the X applications running would no longer
>> respond, but I could still move the mouse and switch to a
>> textmode-console.

Andrea> I guess it's been the shared-mapping swapout deadlock we just
Andrea> know about. Linus is just working for the fix. If you can
Andrea> reproduce try my down() watchdog oopser patch I posted the
Andrea> last week in this list. It will produce an Oops after 20 sec
Andrea> of deadlock. The Oops will tell us if the deadlock you had is
Andrea> the one we just know about.

That would make sense, gimp uses shared memory internally between
the main process and its plugin subprocesses to share image data
to be processed. And gimp uses the shared memory X-extension
on local displays.

Steffen

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