Re: Kernel lockups with 2.0.3x

Mike A. Harris (
Tue, 28 Jul 1998 04:51:55 -0400 (EDT)

On Mon, 27 Jul 1998, Balaji Srinivasan wrote:

> > But you need to run X to trigger it. That pretty much has to be
> > either an X11 or hardware bug
> Well this problem might not be related to the one we are having
> here but here it goes...
> As some of you know, we at the University of Kansas have developed
> a Microsecond resolution timer support for the linux kernel (ie
> timers can be added with usec resolutions). The problems we have
> is related somehow to the new fast timer code (this is new to the 2.1
> series) If we use UTIME, the fast timer code and X and let
> X go idle then there is a hard lock up within an hour or so.
> But if we either revert back to the old timer implementation (ie the
> linked list) or if we dont keep X idle then the hard lockup does not
> occur (atleast for a few days). So there seems to be some interaction
> of the fast timer implementation and X. or there is some really wierd
> bug in X.
> just thought id let all of you know...that way we have more brains
> working on the problem

I'm using 2.0.35, not 2.1.x.

Mike A. Harris  -  Computer Consultant  -  Linux advocate

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