linux-kernel - Re: X-freeze after clflush changes [Was: 2.6.23-rc6-mm1]

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Message-ID: <20070920233114.GR4219@waste.org>
Date:	Thu, 20 Sep 2007 18:31:14 -0500
From:	Matt Mackall <mpm@...enic.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Dave Airlie <airlied@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jiri Slaby <jirislaby@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: X-freeze after clflush changes [Was: 2.6.23-rc6-mm1]

On Fri, Sep 21, 2007 at 01:03:04AM +0200, Andi Kleen wrote:
> > It's broken for me.
> > 
> > 2.6.23-rc3-mm1: solid lock on X shutdown (noticed when upgrading)
> >       -rc4-mm1: solid lock on X shutdown, random solid locks about
> >                 once every four hours
> >       -rc6-mm1: solid lock on X startup
> >    +your patch: screen goes black, turns off and on a few times during
> >                 startup, can reboot with sysrq-b
> 
> Does it work with my simple dumb patch instead of Dave's ? 

Sorry, forgot to mention: your one-liner flush also doesn't work (same
behavior).

I suspect I'm tripping two things and the flushing thing fixes one but
not the other.

-- 
Mathematics is the supreme nostalgia of our time.
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