Bug 4125

Summary:	X server failing to start on Montecito CPUs (IA64)
Product:	xorg	Reporter:	simon.derr <simon.derr>
Component:	Server/General	Assignee:	Xorg Project Team <xorg-team>
Status:	RESOLVED INVALID	QA Contact:
Severity:	blocker
Priority:	high	CC:	ajax, erik.andren, simon.derr
Version:	6.8.1
Hardware:	x86 (IA32)
OS:	Linux (All)
URL:	http://www.bullopensource.org/patches/xorg-x11.montecito_sigill.Bull.patch
Whiteboard:
i915 platform:		i915 features:

Description simon.derr 2005-08-17 06:24:57 UTC

Hi,

The X server won't start on our Montecito boxes, it crashes with a SIGILL.
This problem seems to be related to the separated data and instruction caches on
this CPU, and missing flush instructions in the X module loader.

I have "written" a fix for this, that SEEMS to work. But I am not familiar
enough with the X server and its loader to be sure of this. (But at least it
works on our system).

This patch can be found at : 

http://www.bullopensource.org/patches/xorg-x11.montecito_sigill.Bull.patch

Comment 1 Adam Jackson 2005-08-20 11:29:32 UTC

elfloader will no longer be the default loader in 6.9/7.0 and later.  have you
encountered this same problem using dlloader in any of the 6.9 snapshots or
release candidates?

Comment 2 Adam Jackson 2005-09-20 08:25:23 UTC

CVS head also contains the following fix for elfloader on ia64:

http://cvs.freedesktop.org/xorg/xc/programs/Xserver/hw/xfree86/loader/elfloader.c?r1=1.4&r2=1.5

this change is present since the 6.8.99.2 snapshot.  does that patch help on
montecito?

Comment 3 Adam Jackson 2005-10-21 23:48:14 UTC

simon, any word on this?  i'd like to see 7.0 working out of the box on montecito.

Comment 4 Adam Jackson 2005-12-25 17:34:12 UTC

simon: is this still an issue on Montecito with 6.9 or 7.0?  please reopen if so.

Comment 5 Erik Andren 2006-04-23 00:13:13 UTC

Closing. Please reopen if this still is an issue

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