Bug 931917 - xf86-video-intel driver needs an update for Kernel 4.0
Summary: xf86-video-intel driver needs an update for Kernel 4.0
Status: RESOLVED FIXED
Alias: None
Product: openSUSE Distribution
Classification: openSUSE
Component: X.Org (show other bugs)
Version: 13.2
Hardware: x86-64 openSUSE 13.2
: P3 - Medium : Normal (vote)
Target Milestone: ---
Assignee: E-mail List
QA Contact: E-mail List
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-05-21 20:55 UTC by Björn Voigt
Modified: 2015-05-26 11:00 UTC (History)
1 user (show)

See Also:
Found By: ---
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

Attachments
Xorg crashes with segmentation fault with driver package xf86-video-intel-2.99.917-145.8 (5.60 KB, text/x-log)
2015-05-21 20:55 UTC, Björn Voigt 		Details
Xorg runs normal after updating xf86-video-intel (22.72 KB, text/plain)
2015-05-21 20:56 UTC, Björn Voigt 		Details
Patch "sna: Protect against ABI breakage in recent versions of libdrm" fixes segmentation faults (1.97 KB, patch)
2015-05-23 20:28 UTC, Björn Voigt 		Details | Diff
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Björn Voigt 2015-05-21 20:55:26 UTC 
Created attachment 635097 [details]
Xorg crashes with segmentation fault with driver package xf86-video-intel-2.99.917-145.8

After updating the Kernel to 4.0 (tested with Kernel 4.0.4-2.g4f5e0d5-desktop from Kernel_stable repository), X does not start anymore. /usr/bin/Xorg crashes with "Segmentation fault at address 0x0" (file /var/log/Xorg.0.log is attached).

My setup:
- CPU Intel Core i5 4200U
- Kernel 4.0.4-2.g4f5e0d5-desktop
- Xorg packages from X11_XOrg repository:
  - xf86-video-intel-2.99.917-145.8
  - X.Org X Server 1.17.1

After updating the xf86-video-intel driver with intel sources from GIT (see http://www.x.org/wiki/IntelGraphicsDriver/, tested with GIT snapshot from May 19 12:14:24 2015 +0100) my X server works again.
Comment 1 Björn Voigt 2015-05-21 20:56:32 UTC 
Created attachment 635098 [details]
Xorg runs normal after updating xf86-video-intel
Comment 2 Stefan Dirsch 2015-05-22 08:17:59 UTC 
I would like to avoid to update xf86-video-intel to a git snapshot. So, since you easily can reproduce the issue, could you git bisect this? Thanks.
Comment 3 Björn Voigt 2015-05-23 20:24:48 UTC 
I have done "git bisect" and found, that the first working revision is

commit 7fe2b2948652443ff43d907855bd7a051d54d309
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Thu Mar 19 23:14:17 2015 +0000

I also tested this revision alone as a patch on top of xf86-video-intel-2.99.917 (see attachment). It works on my hardware.
Comment 4 Björn Voigt 2015-05-23 20:28:24 UTC 
Created attachment 635268 [details]
Patch "sna: Protect against ABI breakage in recent versions of libdrm" fixes segmentation faults
Comment 5 Björn Voigt 2015-05-23 21:06:07 UTC 
I tested the patch successfully with the following Kernels:

kernel-desktop-3.16.6-2.1.x86_64 (openSUSE 13.2)
kernel-desktop-3.16.7-21.1.x86_64 (openSUSE 13.2 Update)
kernel-desktop-4.0.4-2.1.g4f5e0d5.x86_64 (Kernel_stable)
Comment 6 Stefan Dirsch 2015-05-26 10:21:35 UTC 
Thanks a lot! Added the patch now to obs://X11:XOrg and submitrequested it for openSUSE:Factory (upcoming tumbleweed).
Comment 7 Bernhard Wiedemann 2015-05-26 11:00:08 UTC 
This is an autogenerated message for OBS integration:
This bug (931917) was mentioned in
https://build.opensuse.org/request/show/308726 Factory / xf86-video-intel