Re: -rt scheduling: wakeup bug?
From: Mike Kravetz
Date: Tue Oct 02 2007 - 15:30:33 EST
On Tue, Oct 02, 2007 at 07:06:32AM +0200, Ingo Molnar wrote:
> * Mike Kravetz <kravetz@xxxxxxxxxx> wrote:
> > My observations/debugging/conclusions are based on an earlier version
> > of the code. It appears the same code/issue still exists in the most
> > version. But, I have not not done any work with the latest version.
> I believe you are right - nice catch of this very nontrivial bug! The
> patch below is against .23-rc - do you think this fix (of moving the rt
> wakeup sequence to after the activate_task()) is adequate?
Yes, I have been running with a similar patch on a (much) earlier
version of the code. It has helped quite a bit. I would have
put together a patch for a later version, but my test environment
is limited to this earlier version.
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/