Re: 2.6.9-rc2-mm3

[Jens Axboe <axboe@suse.de>]

On Sat, Sep 25 2004, William Lee Irwin III wrote:
> On Fri, Sep 24, 2004 at 01:46:43AM -0700, Andrew Morton wrote:
> > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.9-rc2/2.6.9-rc2-mm3/
> > - This is a quick not-very-well-tested release - it can't be worse than
> >   2.6.9-rc2-mm2, which had a few networking problems.
> > - Added Dmitry Torokhov's input system tree to the -mm bk tree lineup.
> 
> I hope this isn't terribly redundant, but I've tripped over a bogon in
> 2.6.9-rc2-mm3 similar to the one I reported for 2.6.9-rc2-mm1. The box
> was actually idle at the time.

Same bug, not fixed yet. I'll see if I can get it fixed on monday, I've
seen it here a few times as well. Seems not to be easily reproducable
and no real pattern to when it does. In the mean time, you can replace
the BUG_ON() with a

	if (cfqq->allocated[crq->is_write] == 0) {
		WARN_ON(1);
		cfqq->allocated[crq->is_write] = 1;
	}

and the system should work fine.

-- 
Jens Axboe