[Bug 15017] New: kexec regression, radeon/kms irq related (bisected)

[Bug 15017] New: kexec regression, radeon/kms irq related (bisected)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15017

           Summary: kexec regression, radeon/kms irq related (bisected)
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.33-rc3
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri@kernel-bugs.osdl.org
        ReportedBy: markus@trippelsdorf.de
        Regression: Yes


Commit d8f60cfc93452d0554f6a701aa8e3236cbee4636 (drm/radeon/kms: Add support
for interrupts on r6xx/r7xx chips) breaks kexec on my machine (amd64, RS780).
The computer just hangs right after the kexec call and I have to press the
reset button to get it running again.
2.6.32 worked flawlessly.

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[Bug 15017] kexec regression, radeon/kms irq related (bisected)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15017


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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rjw@sisk.pl
             Blocks|                            |14885




--- Comment #1 from Rafael J. Wysocki <rjw@sisk.pl>  2010-01-13 22:10:44 ---
First-Bad-Commit : d8f60cfc93452d0554f6a701aa8e3236cbee4636

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[Bug 15017] kexec regression, radeon/kms irq related (bisected)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15017





--- Comment #2 from Rafael J. Wysocki <rjw@sisk.pl>  2010-01-13 22:11:26 ---
commit d8f60cfc93452d0554f6a701aa8e3236cbee4636
Author: Alex Deucher <alexdeucher@gmail.com>
Date:   Tue Dec 1 13:43:46 2009 -0500

    drm/radeon/kms: Add support for interrupts on r6xx/r7xx chips (v3)

    Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
    Signed-off-by: Dave Airlie <airlied@redhat.com>

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[Bug 15017] kexec regression, radeon/kms irq related (bisected)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15017





--- Comment #3 from Jérôme Glisse <glisse@freedesktop.org>  2010-01-15 13:50:02 ---
Created an attachment (id=24571)
 --> (http://bugzilla.kernel.org/attachment.cgi?id=24571)
Disable irq at suspend

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[Bug 15017] kexec regression, radeon/kms irq related (bisected)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15017





--- Comment #4 from Jérôme Glisse <glisse@freedesktop.org>  2010-01-15 13:50:37 ---
Created an attachment (id=24572)
 --> (http://bugzilla.kernel.org/attachment.cgi?id=24572)
Don't process irq until initialized

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[Bug 15017] kexec regression, radeon/kms irq related (bisected)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15017





--- Comment #5 from Jérôme Glisse <glisse@freedesktop.org>  2010-01-15 13:51:27 ---
Created an attachment (id=24573)
 --> (http://bugzilla.kernel.org/attachment.cgi?id=24573)
Handle IH ring overflow

Please can you test if the attached patch set helps with your issue. Thanks

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[Bug 15017] kexec regression, radeon/kms irq related (bisected)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15017





--- Comment #6 from Markus Trippelsdorf <markus@trippelsdorf.de>  2010-01-15 14:30:11 ---
Yes, kexec works again with your patches applied.
Thanks a lot Jérôme.

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[Bug 15017] kexec regression, radeon/kms irq related (bisected)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15017


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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |PATCH_ALREADY_AVAILABLE




--- Comment #7 from Rafael J. Wysocki <rjw@sisk.pl>  2010-01-25 21:05:25 ---
Handled-By : Jérôme Glisse <glisse@freedesktop.org>

Patch : http://bugzilla.kernel.org/attachment.cgi?id=24571
Patch : http://bugzilla.kernel.org/attachment.cgi?id=24572
Patch : http://bugzilla.kernel.org/attachment.cgi?id=24573

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[Bug 15017] kexec regression, radeon/kms irq related (bisected)

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15017


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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED
         Resolution|PATCH_ALREADY_AVAILABLE     |CODE_FIX




--- Comment #8 from Rafael J. Wysocki <rjw@sisk.pl>  2010-01-26 12:16:28 ---
Fixed by:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0c45249f419d8b86abe0e51c6627ca4b085e8c23
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=79c2bbc505751bb5130ac753251fc9a0eb37bb12
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7924e5eb8fe422d6b1ce3b3e2be749a480dfcdd9

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