Bug 24724

Summary:

X crashes in uxa_acquire_pattern when logging in (gdm)

Product:

xorg

Reporter:

Albert Damen <albrt>

Component:

Driver/intel

Assignee:

Carl Worth <cworth>

Status:

RESOLVED FIXED

QA Contact:

Xorg Project Team <xorg-team>

Severity:

critical

Priority:

medium

Keywords:

patch

Version:

git

Hardware:

x86-64 (AMD64)

OS:

Linux (All)

Whiteboard:

i915 platform:

i915 features:

Attachments:

Description	Flags
Xorg.log	none
stacktrace	none
Proposed fix	none

Description Albert Damen 2009-10-25 10:29:58 UTC

Created attachment 30672 [details]
Xorg.log

Bug description: When I log in from GDM, X frequently crashes and the GDM login screen is shown again. It only happens with compiz enabled.

System environment:
-- chipset: GM965
-- system architecture: 32-bit
-- xf86-video-intel: git-master, commit 38ab403d7a1c461
-- xserver: 1.7.1
-- mesa: 7.7-devel, commit a74e53ddba246b1
-- libdrm: 2.4.15
-- kernel: 2.6.31-14-generic (based on 2.6.31.4)
-- Linux distribution: Ubuntu Karmic
-- Machine or mobo model: Compal IFL91
-- Display connector: LVDS

Reproducing steps: Log in from GDM with compiz enabled and see the login screen appear again (50% chance).

Additional info: see stacktrace and patch.
The bug is triggered by gtk-window-decorator, which calls XRenderComposite with height=-1, but height is an unsigned int. Therefore -intel tries to create a pixmap with height=65535, which is not supported.

Comment 1 Albert Damen 2009-10-25 10:30:42 UTC

Created attachment 30673 [details]
stacktrace

Comment 2 Albert Damen 2009-10-25 10:31:07 UTC

Created attachment 30674 [details] [review]
Proposed fix

Comment 3 Gordon Jin 2009-10-25 18:24:40 UTC

Thanks for the patch. Let Carl review.

Comment 4 Carl Worth 2009-10-26 11:39:12 UTC

Thanks very much for the patch, Albert.

I've pushed this out to xf86-video-intel git master.

-Carl

PS. Would still be worth chasing down that -1 and fixing it. :-)

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.