[Bug 16549] DRI Locking code broken on DEC Alpha with Radeon

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=16549


Matt Turner <mattst88 at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|xorg-driver-ati at lists.x.org |mattst88 at gmail.com
             Status|NEW                         |ASSIGNED




--- Comment #21 from Matt Turner <mattst88 at gmail.com>  2009-02-08 18:02:19 PST ---
Created an attachment (id=22697)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=22697)
First try at fixing DRM_CAS on Alpha

First try at fixing DRM_CAS on Alpha.

Whereas before dmesg showed stuff like

> [drm:radeon_cp_cmdbuf] *ERROR* radeon_cp_cmdbuf called without lock held, held 0 owner fffffc00f2a57c00 fffffc00f2a57c00

glxgears would die with -22, with the patch, I only get in dmesg

> [drm:radeon_cp_init] *ERROR* radeon_cp_init called without lock held, held  0 owner (null) fffffc00e8add980

and glxgears runs (albeit software rendered).

Looks like I've got a corner case to fix with the patch. Tobias, could you test
the patch?

To do so, patch and build libdrm and rebuild mesa, xorg-server and your video
driver.


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