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

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Message-ID: <21d7e9970709201524r159d544aq9de90bfa6b1e116e@mail.gmail.com>
Date:	Fri, 21 Sep 2007 08:24:00 +1000
From:	"Dave Airlie" <airlied@...il.com>
To:	"Valdis.Kletnieks@...edu" <Valdis.Kletnieks@...edu>
Cc:	"Jiri Slaby" <jirislaby@...il.com>,
	"Andi Kleen" <andi@...stfloor.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: X-freeze after clflush changes [Was: 2.6.23-rc6-mm1]

> > But now I'm talking about another issue -- a regression since rc4-mm1, where X
> > server is unable to bind agp memory (those x logs above). The clflush issue has
> > solved andi in
> > http://lkml.org/lkml/2007/9/19/334
> > recently
>
> Tried that, my laptop still bricks the instant X starts up and the NVidia driver
> tries to initialize.  Not even sysrq-foo works. Time to power-cycle.
>

I'd expect the binary to be doing something stupid with it's flushing
and relying on the kernel to do something it no longer does.. so this
is most likely a case of not fixable..

Dave.
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