Bug 7173

Summary:	Kernel lockup when starting second X on MGA G200
Product:	xorg	Reporter:	Sitsofe Wheeler <sitsofe>
Component:	Driver/mga	Assignee:	Xorg Project Team <xorg-team>
Status:	RESOLVED INVALID	QA Contact:	Xorg Project Team <xorg-team>
Severity:	normal
Priority:	high	CC:	dri-devel
Version:	7.0.0
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Sitsofe Wheeler 2006-06-10 03:32:24 UTC

(Originally filed at https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=193854
against Fedora Core 5)

Description of problem:
The entire system stops responding (not even sysrq works) if a second X is started.

Version-Release number of selected component (if applicable):
xorg-x11-drv-mga-1.2.1.3-1.2
xorg-x11-drivers-7.0-2

How reproducible:
Every time.

Steps to Reproduce:
1. Boot to runlevel 3.
2. Log in as a user to a virtual terminal. Run X .
3. Log in as a user to another virtual terminal Run X .
  
Actual results:
First X launches correctly, second X causes the entire machine to stop
responding (caps lock no longer works, stops responding to network packets).

Expected results:
Second X to work.

Additional info:
If sysrq is enabled then it stops working to (unable to do sysrq reboot).

Might be a dup of upstream Bug #876

Comment 1 Sitsofe Wheeler 2006-06-10 03:34:02 UTC

xorg.conf:
https://bugzilla.redhat.com/bugzilla/attachment.cgi?id=130386

Xorg.0.log from a working X
https://bugzilla.redhat.com/bugzilla/attachment.cgi?id=130387

The last message in /var/log/message before the lockup are the following:

Jun  2 09:38:02 platinum kernel: agpgart: Found an AGP 2.0 compliant device at
0000:00:00.0.
Jun  2 09:38:02 platinum kernel: agpgart: Putting AGP V2 device at 0000:00:00.0
into 1x mode
Jun  2 09:38:02 platinum kernel: agpgart: Putting AGP V2 device at 0000:01:00.0
into 1x mode
Jun  2 09:38:02 platinum kernel: [drm] Initialized card for AGP DMA.
Jun  2 09:38:14 platinum kernel: agpgart: Found an AGP 2.0 compliant device at
0000:00:00.0.
Jun  2 09:38:14 platinum kernel: agpgart: Putting AGP V2 device at 0000:00:00.0
into 1x mode
Jun  2 09:38:14 platinum kernel: agpgart: Putting AGP V2 device at 0000:01:00.0
into 1x mode
Jun  2 09:38:14 platinum kernel: [drm] Initialized card for AGP DMA.
Jun  2 09:38:58 platinum ntpd[1790]: synchronized to LOCAL(0), stratum 10
Jun  2 09:38:58 platinum ntpd[1790]: kernel time sync disabled 0041

Comment 2 Sitsofe Wheeler 2006-06-16 23:54:27 UTC

cc'ing dri-devel list on the advice of Mike Harris in
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=193854

Comment 3 Daniel Stone 2007-02-27 01:32:29 UTC

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

Comment 4 Sitsofe Wheeler 2009-07-12 12:04:38 UTC

I no longer have access to this hardware (and haven't for years). Resolve INVALID?

Comment 5 Sitsofe Wheeler 2011-02-23 10:46:34 UTC

Let's close this INVALID.

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