linux-kernel - Re: [Bug #14924] Weird hard hangs when rendering 'some' web-sites in Firefox

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Date:	Mon, 25 Jan 2010 19:26:25 +0000
From:	David <david@...olicited.net>
To:	Américo Wang <xiyou.wangcong@...il.com>
CC:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>
Subject: Re: [Bug #14924] Weird hard hangs when rendering 'some' web-sites
 in Firefox

Américo Wang wrote:
> On Sun, Jan 24, 2010 at 11:04:33PM +0100, Rafael J. Wysocki wrote:
>   
>> This message has been generated automatically as a part of a report
>> of recent regressions.
>>
>> The following bug entry is on the current list of known regressions
>>     
> >from 2.6.32.  Please verify if it still should be listed and let me know
>   
>> (either way).
>>
>>
>> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=14924
>> Subject		: Weird hard hangs when rendering 'some' web-sites in Firefox
>> Submitter	: David <david@...olicited.net>
>> Date		: 2009-12-21 21:53 (35 days old)
>> References	: http://marc.info/?l=linux-kernel&m=126143375823340&w=4
>>     
>
> Hmm, you have CONFIG_DETECT_SOFTLOCKUP=y, I have no idea what happened,
> doing a bisect would be appreciated.
>
> Thanks.
>
>   

I no longer have the offending hardware, but I think that the issue was
probably corrected by:

    cafe6609d6dc0a6a278f9fdbb59ce4d761a35ddd -
drm/radeon/kms: Schedule host path read cache flush through the ring V2

as the offending ATI graphics was indeed R300.

Cheers
David


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