Re: patch] Real-Time Preemption, plist fixes

From: Thomas Gleixner
Date: Sun Jun 05 2005 - 05:54:27 EST


On Sun, 2005-06-05 at 10:32 +0200, Thomas Gleixner wrote:
> On Sat, 2005-06-04 at 17:53 -0700, Daniel Walker wrote:
> > >
> > I already released a patch to fix this.
>
> Nice to know. Where ?
>

Ingo pointed me at the patch.

Sorry, but I really don't see the release there.

> The first time I saw these latencies I has the PI abstraction applied, and
> the most recent time I had the attached patch applied only. This patch is
> small so I'm not sure if it could have that type of effect on task
> latency.

It fixes a problem and uncovers others, but your comment is more a
question than an explanation for the urgency of the fix. In fact the
original implementation leads to solid deadlocks in
plist_for_each_safe() loops.


I really can't blame Ingo for ignoring this.

tglx


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/