Re: 2.4.20-ac1 hangs IBM Thinkpad

From: Alan Cox (
Date: Tue Dec 10 2002 - 11:49:41 EST

On Tue, 2002-12-10 at 12:53, J.D. Hood wrote:
> I have also stopped using 2.4.20-ac1 on my ThinkPad.
> It performs much worse than 2.4.20-pre8-ac1 when running
> large applications such as OpenOffice. (It never crashed
> on me, though.) Having read the recent thread on changes
> to the scheduler and yield(), I suspect that the problem
> is related to that, since the 2.4-ac series has the O(1)
> scheduler.

Thats a bug in openoffice (or more accurately in the glibc thread
library). Our yield now does what it is *supposed* to do. Unfortunately
glibc is coded to rely on what used to happen. Andrea has a nice fix for
this which I'll probably merge soon

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