[Bug 15287] New: RadeonKMS segfaults kdm on mobility radeon x700 pcie

[Bug 15287] New: RadeonKMS segfaults kdm on mobility radeon x700 pcie

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15287

           Summary: RadeonKMS segfaults kdm on mobility radeon x700 pcie
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.32
          Platform: All
        OS/Version: Linux
              Tree: Fedora
            Status: NEW
          Severity: high
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri@kernel-bugs.osdl.org
        ReportedBy: kontrollator@gmx.de
        Regression: Yes


Using the KMS option of the radeon-driver makes the kernel segfault and reboot
when starting an kde session. This happens on daves radeon-testing tree using
latest mesa-git and libdrm-git. Also happens on latest linus tree. The same
combination works great when using the non-kms codepath.

Hardware is an mobility radeon x700 pcie.

lspci -vn:
02:00.0 0300: 1002:5653 (prog-if 00 [VGA controller])
        Subsystem: 1734:1093
        Flags: bus master, fast devsel, latency 0, IRQ 24
        Memory at b0000000 (64-bit, prefetchable) [size=128M]
        Memory at feaf0000 (64-bit, non-prefetchable) [size=64K]
        I/O ports at b000 [size=256]
        Expansion ROM at feac0000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 2
        Capabilities: [58] Express Endpoint, MSI 00
        Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit+
        Capabilities: [100] Advanced Error Reporting

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[Bug 15287] RadeonKMS segfaults kdm on mobility radeon x700 pcie

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15287





--- Comment #1 from Jan Kreuzer <kontrollator@gmx.de>  2010-02-12 17:59:42 ---
Created an attachment (id=25010)
 --> (http://bugzilla.kernel.org/attachment.cgi?id=25010)
messages drm.debug=5 from nonfunctionating startup

This is from latest drm-radeon-testing booted with drm.debug=5.

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[Bug 15287] RadeonKMS segfaults kdm on mobility radeon x700 pcie

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15287


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

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




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[Bug 15287] RadeonKMS segfaults kdm on mobility radeon x700 pcie

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15287





--- Comment #2 from Jan Kreuzer <kontrollator@gmx.de>  2010-02-13 17:50:36 ---
Created an attachment (id=25031)
 --> (http://bugzilla.kernel.org/attachment.cgi?id=25031)
/proc/interrupts nonkms

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[Bug 15287] RadeonKMS segfaults kdm on mobility radeon x700 pcie

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15287





--- Comment #3 from Jan Kreuzer <kontrollator@gmx.de>  2010-02-13 17:51:59 ---
Created an attachment (id=25032)
 --> (http://bugzilla.kernel.org/attachment.cgi?id=25032)
/proc/interrupts kms

in the kms case interrupt type is pci-msi-edge. it seems interrupts dont get
caught.

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[Bug 15287] RadeonKMS segfaults kdm on mobility radeon x700 pcie

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http://bugzilla.kernel.org/show_bug.cgi?id=15287





--- Comment #4 from Jan Kreuzer <kontrollator@gmx.de>  2010-02-13 18:03:18 ---
Disabling pci-msi per boot option pci=nomsi,routeirq fixes the problem, Xorg
starts, no crash, proper counting of interrupts.

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[Bug 15287] RadeonKMS segfaults kdm on mobility radeon x700 pcie

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15287


Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alexdeucher@gmail.com




--- Comment #5 from Alex Deucher <alexdeucher@gmail.com>  2010-02-13 19:26:13 ---
Broken MSIs is a motherboard chipset issue rather than a radeon bug.  Your
motherboard chipset may need a quirk or to disable MSIs altogether.

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[Bug 15287] RadeonKMS segfaults kdm on mobility radeon x700 pcie

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http://bugzilla.kernel.org/show_bug.cgi?id=15287





--- Comment #6 from Jan Kreuzer <kontrollator@gmx.de>  2010-02-13 19:44:33 ---
Ok, so this bug needs reassignment to pci ? How do i change it ? Bugzilla says
i have no right to change the assignemnet to pci.

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[Bug 15287] RadeonKMS segfaults kdm on mobility radeon x700 pcie

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http://bugzilla.kernel.org/show_bug.cgi?id=15287





--- Comment #7 from Alex Deucher <alexdeucher@gmail.com>  2010-02-13 20:05:43 ---
Correct.  I'm not sure how to change it.  It wouldn't let me change it either.

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[Bug #15287] RadeonKMS segfaults kdm on mobility radeon x700 pcie

[Rafael J. Wysocki]

This message has been generated automatically as a part of a summary 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 the tracking team
know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15287
Subject		: RadeonKMS segfaults kdm on mobility radeon x700 pcie
Submitter	: Jan Kreuzer <kontrollator@gmx.de>
Date		: 2010-02-12 17:58 (3 days old)

[Bug 15287] RadeonKMS segfaults kdm on mobility radeon x700 pcie

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=15287


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

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Video(DRI - non Intel)      |PCI
         AssignedTo|drivers_video-dri@kernel-bu |drivers_pci@kernel-bugs.osd
                   |gs.osdl.org                 |l.org




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[Bug #15287] RadeonKMS segfaults kdm on mobility radeon x700 pcie

[Rafael J. Wysocki]

This message has been generated automatically as a part of a summary 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 the tracking team
know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15287
Subject		: RadeonKMS segfaults kdm on mobility radeon x700 pcie
Submitter	: Jan Kreuzer <kontrollator@gmx.de>
Date		: 2010-02-12 17:58 (10 days old)

[Bug #15287] RadeonKMS segfaults kdm on mobility radeon x700 pcie

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.32 and 2.6.33.

The following bug entry is on the current list of known regressions
introduced between 2.6.32 and 2.6.33.  Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15287
Subject		: RadeonKMS segfaults kdm on mobility radeon x700 pcie
Submitter	: Jan Kreuzer <kontrollator-Mmb7MZpHnFY@public.gmane.org>
Date		: 2010-02-12 17:58 (38 days old)
Handled-By	: Matthew Wilcox <matthew-Ztpu424NOJ8@public.gmane.org>
Patch		: http://bugzilla.kernel.org/attachment.cgi?id=25483

[Bug #15287] RadeonKMS segfaults kdm on mobility radeon x700 pcie

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.32 and 2.6.33.

The following bug entry is on the current list of known regressions
introduced between 2.6.32 and 2.6.33.  Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15287
Subject		: RadeonKMS segfaults kdm on mobility radeon x700 pcie
Submitter	: Jan Kreuzer <kontrollator@gmx.de>
Date		: 2010-02-12 17:58 (38 days old)
Handled-By	: Matthew Wilcox <matthew@wil.cx>
Patch		: http://bugzilla.kernel.org/attachment.cgi?id=25483