Date: Fri, 3 Feb 2006 10:44:29 -0800
From: Pete Zaitcev <zaitcev@redhat.com>
To: Dave Jones <davej@redhat.com>
Cc: Jens Axboe <axboe@suse.de>, linux-kernel@vger.kernel.org,
       zaitcev@redhat.com
Subject: Re: more cfq spinlock badness
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On Wed, 1 Feb 2006 11:15:41 -0500, Dave Jones <davej@redhat.com> wrote:

> >  > > Not seen this break for a while, but I just hit it again in 2.6.16rc1-git4.

>  > The ub fix hasn't been merged yet.
> 
> Really? I thought Pete synced up a whole bunch of ub bits including that already.

I did but the patch sat in Greg's and AKPM's trees for a while, so the
first release which contains the CFQ+ub fix is 2.6.16-rc2.

But in any case if no USB devices were connected, ub cannot be in
the picture. It's true even if they were connected and disconnected.
A queue has to be in use before this happens.

-- Pete
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