* [Bug 21908] New: SIGSEGV when no kernel DRM present
@ 2009-05-24 10:58 bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
[not found] ` <bug-21908-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
0 siblings, 1 reply; 2+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2009-05-24 10:58 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
http://bugs.freedesktop.org/show_bug.cgi?id=21908
Summary: SIGSEGV when no kernel DRM present
Product: xorg
Version: unspecified
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: major
Priority: medium
Component: Driver/nouveau
AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
ReportedBy: hostcc-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
Created an attachment (id=26165)
--> (http://bugs.freedesktop.org/attachment.cgi?id=26165)
Patch for SIGSEGV when no kernel-side DRM is present
The nouveau driver (from git on 13/04/2009) experienced SIGSEGV when no
kernel-side DRM is present.
The component version:
xserver: 1.5.3
libdrm: 2.4.9
xf86-video-nouveau: git from 13/04/2009
The problem was narrowed down to nv_driver.c:NVMapMemSW() - the function
declares 'struct nouveau_device', which in fact, should be 'struct
nouveau_device_priv' for DRM related functions to work properly.
The crashes were related to the accesses to 'mm_enabled' field of 'struct
nouveau_device_priv', which points to a garbage when only 'struct
nouveau_device' declared.
Attached patch (against git from 13/04/2009) solved the problem.
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^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug 21908] SIGSEGV when no kernel DRM present
[not found] ` <bug-21908-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
@ 2009-08-09 16:36 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
0 siblings, 0 replies; 2+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2009-08-09 16:36 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
http://bugs.freedesktop.org/show_bug.cgi?id=21908
Pekka Paalanen <pq-X3B1VOXEql0@public.gmane.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |WONTFIX
--- Comment #1 from Pekka Paalanen <pq-X3B1VOXEql0@public.gmane.org> 2009-08-09 09:36:06 PST ---
Nowadays Nouveau cannot work without DRM, since it uses the memory management
(GEM+TTM) even in NoAccel mode. Non-DRM mode is gone by commit
http://cgit.freedesktop.org/nouveau/xf86-video-nouveau/commit/?id=f8ac9e35bd20391f923c5c5ccc509251ea23a4c5
Therefore closing this report, thanks.
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2009-05-24 10:58 [Bug 21908] New: SIGSEGV when no kernel DRM present bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
[not found] ` <bug-21908-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
2009-08-09 16:36 ` [Bug 21908] " bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
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