Created attachment 18692 [details]
Xorg.0.log with drm failure
System : Dell XPS M1330
Chipset: GM965 with 2 * 1GB memory in dual channel configuration
OS : Ubuntu 8.04.1
tested with git tip components of 09/04/2008:
breaks my EXA accelerated xserver and results in this image when starting x:
(EE) intel(0): [drm] failure adding irq handler
commit 1063ef90845d7c84f4799ac34bd23ef37860bdc0 is fine.
a none GEM intel driver (e.g. version 2.4.2) works fine with drm.ko and i915.ko of this commit.
Tobias, thanks for the finding.
So it's caused by below commit in anholt's gem kernel:
author Kristian Høgsberg <firstname.lastname@example.org> 2008-08-20 15:04:27
committer Eric Anholt <email@example.com> 2008-09-03 14:43:15
parent 1063ef90845d7c84f4799ac34bd23ef37860bdc0 (diff)
i915 gem: install and uninstall irq handler in entervt and leavevt ioctls.
my team can reproduce this on GM965, G33 and 945G.
*** Bug 17442 has been marked as a duplicate of this bug. ***
Fixed in 0f804bfa1e1e972e9b4e3b7c8db61e9877c50f50 of 2d.
This issue is fixed in master branch ,but not in 2.5-branch .
So it needs to be cherry-picked to 2.5-branch.