Re: [PATCH] llist: Fix missing lockless_dereference()

From: Michael Cree
Date: Tue Feb 10 2015 - 04:34:40 EST


On Sun, Feb 08, 2015 at 04:25:46AM +0000, Mathieu Desnoyers wrote:
> > From: "Michael Cree" <mcree@xxxxxxxxxxxx>
> > The Alpha kernel is behaving pretty well provided one builds a machine
> > specific kernel and UP. When running an SMP kernel some packages
> > (most notably the java runtime, but there are a few others) occasionally
> > lock up in a pthread call --- could be a problem in libc rather then the
> > kernel.
>
> Are those lockups always occasional, or you have ways to reproduce them
> frequently with stress-tests ?

They are occasional but a build of openjdk-7 bootstrapping from itself
is very likely to end up with a locked up javac process. I've just set
such a build going with the openjdk-7 build-dependencies and some extra
debug packages installed in the build chroot to see if I can get a
useful backtrace. Will be tomorrow morning when I look as I am now
heading off for the night.

Cheers
Michael.
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