[Bug 14924] KMS:RV370:X300 GPU lockup ('some' web-sites in Firefox)

[Bug 14924] KMS:RV370:X300 GPU lockup ('some' web-sites in Firefox)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=14924


Jérôme Glisse <glisse@freedesktop.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO
                 CC|                            |glisse@freedesktop.org
            Summary|Weird hard hangs when       |KMS:RV370:X300 GPU lockup
                   |rendering 'some' web-sites  |('some' web-sites in
                   |in Firefox                  |Firefox)




--- Comment #1 from Jérôme Glisse <glisse@freedesktop.org>  2010-01-25 14:38:35 ---
Please attach Xorg log (/var/log/Xorg.0.log) do you still experience such
things with lastest kernel ?

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[Bug 14924] KMS:RV370:X300 GPU lockup ('some' web-sites in Firefox)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=14924


Kieran Clancy <codebeard+kernel@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |codebeard+kernel@gmail.com




--- Comment #2 from Kieran Clancy <codebeard+kernel@gmail.com>  2010-01-25 19:59:56 ---
This is possibly the problem I am experiencing. The machine locks up hard;
mouse cursor freezes, sysrq doesn't respond, netconsole gives nothing. I
haven't been able to associate it to any sites in particular. Sometimes it
happens within 10 seconds of starting Firefox, and other times it takes hours
before it happens.

I think it is KMS related, but for me I only get the lockup when I boot with
nomodeset. If I am running KMS it has never locked up in this way. (I prefer to
boot with nomodeset as there are some performance issues with KMS on my card,
but that's for another report.)

I am running 2.6.31.12-174.2.3.fc12.i686.PAE as packaged by Fedora. This is
before 2.6.33, but perhaps something funky has been back-ported.

01:00.0 VGA compatible controller: ATI Technologies Inc RV350 AR [Radeon 9600]
(prog-if 00 [VGA controller])
 Subsystem: ASUSTeK Computer Inc. Radeon 9600 XT TVD
 Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 16
 Memory at d0000000 (32-bit, prefetchable) [size=256M]
 I/O ports at a000 [size=256]
 Memory at f9000000 (32-bit, non-prefetchable) [size=64K]
 [virtual] Expansion ROM at f8000000 [disabled] [size=128K]
 Capabilities: [58] AGP version 3.0
 Capabilities: [50] Power Management version 2
 Kernel modules: radeon, radeonfb

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[Bug 14924] KMS:RV370:X300 GPU lockup ('some' web-sites in Firefox)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=14924





--- Comment #3 from Rafael J. Wysocki <rjw@sisk.pl>  2010-01-25 21:00:36 ---
On Monday 25 January 2010, David wrote:
> 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@unsolicited.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.

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[Bug 14924] KMS:RV370:X300 GPU lockup ('some' web-sites in Firefox)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=14924


Rafael J. Wysocki <rjw@sisk.pl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |RESOLVED
         Resolution|                            |CODE_FIX




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[Bug 14924] KMS:RV370:X300 GPU lockup ('some' web-sites in Firefox)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=14924


Rafael J. Wysocki <rjw@sisk.pl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED




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[Bug 14924] KMS:RV370:X300 GPU lockup ('some' web-sites in Firefox)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=14924





--- Comment #4 from Jérôme Glisse <glisse@freedesktop.org>  2010-01-25 22:11:14 ---
Well i don't think we can treat GPU hw lockup as regression, sadly we always
had such issue, sometimes we add change that makes it more likely to happen,
sometimes it makes it less likely to occur. I think we can close this
regression, the patch pointed out likely was the fix that makes such lockup
less likely to occur.

Note that we are commited to fix GPU lockup it's just that we have been trying
to do so for several years and so far we haven't found the magic formula.

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[Bug 14924] KMS:RV370:X300 GPU lockup ('some' web-sites in Firefox)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=14924





--- Comment #5 from Michel Dänzer <michel@daenzer.net>  2010-01-26 08:37:07 ---
(In reply to comment #2)
> I think it is KMS related, but for me I only get the lockup when I boot with
> nomodeset.

This is self-contradictory, as nomodeset disables KMS. Apparently your problem
is not KMS related and probably different from the one tracked here.

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