* [Bug 36744] New: [NVA5] BUG: unable to handle kernel NULL pointer dereference
@ 2011-05-01 16:07 bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
[not found] ` <bug-36744-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
0 siblings, 1 reply; 4+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2011-05-01 16:07 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
https://bugs.freedesktop.org/show_bug.cgi?id=36744
Summary: [NVA5] BUG: unable to handle kernel NULL pointer
dereference
Product: xorg
Version: unspecified
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
ReportedBy: patmandin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
Created an attachment (id=46222)
--> (https://bugs.freedesktop.org/attachment.cgi?id=46222)
Kernel log
Since commit e5ca5dec3111772ade1cbbead50c0c594a49778d (bisected, drm/nouveau:
remove remnants of nouveau_pgraph_engine) to nouveau/linux-2.6, I get NULL
pointer dereference when starting kernel.
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^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug 36744] [NVA5] BUG: unable to handle kernel NULL pointer dereference
[not found] ` <bug-36744-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
@ 2011-05-06 20:08 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2011-05-23 9:11 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2011-05-25 8:54 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2 siblings, 0 replies; 4+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2011-05-06 20:08 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
https://bugs.freedesktop.org/show_bug.cgi?id=36744
--- Comment #1 from Patrice Mandin <patmandin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 2011-05-06 13:08:25 PDT ---
Booting kernel without 'nouveau.noaccel=1' makes it work. So it appears the
noaccel case has been broken by said git commit.
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* [Bug 36744] [NVA5] BUG: unable to handle kernel NULL pointer dereference
[not found] ` <bug-36744-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
2011-05-06 20:08 ` [Bug 36744] " bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
@ 2011-05-23 9:11 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2011-05-25 8:54 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2 siblings, 0 replies; 4+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2011-05-23 9:11 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
https://bugs.freedesktop.org/show_bug.cgi?id=36744
--- Comment #2 from Patrice Mandin <patmandin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 2011-05-23 02:11:14 PDT ---
In nouveau_card_init() function (nouveau_state.c file), engine->fifo.init()
function is not called when nouveau_noaccel is enabled.
On NV50/NVA0 cards, engine->fifo.init = nv50_fifo_init (nv50_fifo.c file) and
this function is responsible to fill pfifo->playlist array, which is not done
with nouveau_noaccel enabled.
When nv50_fifo_playlist_update() is called, accessing pfifo->playlist (which
was not initialized) triggers the NULL pointer dereference.
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^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug 36744] [NVA5] BUG: unable to handle kernel NULL pointer dereference
[not found] ` <bug-36744-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
2011-05-06 20:08 ` [Bug 36744] " bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2011-05-23 9:11 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
@ 2011-05-25 8:54 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2 siblings, 0 replies; 4+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2011-05-25 8:54 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
https://bugs.freedesktop.org/show_bug.cgi?id=36744
Patrice Mandin <patmandin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #3 from Patrice Mandin <patmandin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 2011-05-25 01:54:45 PDT ---
Fixed in git nouveau/linux-2.6 repository. Thanks darktama.
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^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-05-25 8:54 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2011-05-01 16:07 [Bug 36744] New: [NVA5] BUG: unable to handle kernel NULL pointer dereference bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
[not found] ` <bug-36744-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
2011-05-06 20:08 ` [Bug 36744] " bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2011-05-23 9:11 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2011-05-25 8:54 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
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