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

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Message-ID: <46F18AED.4090906@gmail.com>
Date:	Wed, 19 Sep 2007 22:47:41 +0200
From:	Jiri Slaby <jirislaby@...il.com>
To:	Valdis.Kletnieks@...edu
CC:	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]

On 09/19/2007 10:32 PM, Valdis.Kletnieks@...edu wrote:
> On Wed, 19 Sep 2007 21:57:27 +0200, Jiri Slaby said:
>> On 09/19/2007 09:54 PM, Andi Kleen wrote:
>>>> Yeah. (But X doesn't run -- this is maybe the known issue in this release)
> .
>>> What do you mean with not run? 
>> (II) intel(0): Initializing HW Cursor
>> (II) intel(0): xf86BindGARTMemory: bind key 0 at 0x005ff000 (pgoffset 1535)
>> (WW) intel(0): xf86BindGARTMemory: binding of gart memory with key 0
>>         at offset 0x5ff000 failed (Invalid argument)
>>
>> Fatal server error:
>> Couldn't bind memory for front buffer
>>
>> I thought I'd seen a thread about this issue, but I can't find it now. Is it
>> known or am I seeing ghosts yet, Andrew?
> 
> That would probably have been me, saying that x86_64-mm-cpa-clflush.patch broke
> the NVidia graphics driver in 23-rc3-mm1.  Is it breaking *other* X drivers as
> well?

Yes, the issue is there from rc3-mm1, see (intel and radeon cards are affected
in my case):
http://lkml.org/lkml/2007/9/9/51

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

regards,
-- 
Jiri Slaby (jirislaby@...il.com)
Faculty of Informatics, Masaryk University
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