Bug 6129

Summary:	Xvfb segfaults on x11perf -aa4trap*
Product:	xorg	Reporter:	Jamey Sharp <jamey>
Component:	Server/DDX/Xvfb	Assignee:	Xorg Project Team <xorg-team>
Status:	RESOLVED DUPLICATE	QA Contact:	Xorg Project Team <xorg-team>
Severity:	normal
Priority:	high	CC:	astrand
Version:	6.9.0
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Jamey Sharp 2006-03-05 05:45:47 UTC

Xvfb from the Debian-packaged version of X.org 6.9 (6.9.0.dfsg.1-4) consistently
receives a SIGSEGV when running any of x11perf's -aa4trap tests. The -aa1trap
tests are fine. This bug happens at 8-bit, 16-bit, and 24-bit color depths, and
seems to be screen-size independent. X.org 6.8.2 didn't have this problem, at
least in the Debian packages.

The sane-looking part of the backtrace follows. Unfortunately I don't have a
copy with debugging symbols handy.

#1  0x080af8bb in fbRestoreAreas ()
#2  0x080b4184 in fbRestoreAreas ()
#3  0x080a0769 in fbComposite ()
#4  0x080f51c1 in miWideDash ()
#5  0x0816487d in miCompositeRects ()

I don't care much about this bug since I'm only trying to test Xlib performance
and I'll just skip those tests, but I wanted to make sure to get a bug report filed.

Comment 1 Daniel Stone 2007-02-27 01:30:45 UTC

Sorry about the phenomenal bug spam, guys.  Adding xorg-team@ to the QA contact so bugs don't get lost in future.

Comment 2 Adam Jackson 2010-05-06 13:39:22 UTC

commit b37c515320dc8df2b1d160cc3f37d6bfac109b91
Author: Keith Packard <keithp@keithp.com>
Date:   Wed Apr 19 21:56:13 2006 +0000

    Add support for x4a4 format (depth 4 at 8bpp). Bug #6325.

*** This bug has been marked as a duplicate of bug 6325 ***

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