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Bug 229664 - X consumes 100% CPU under kernel-xen
Summary: X consumes 100% CPU under kernel-xen
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel-xen
Version: 6
Hardware: i686
OS: Linux
Target Milestone: ---
Assignee: Eduardo Habkost
QA Contact: Virtualization Bugs
Depends On:
TreeView+ depends on / blocked
Reported: 2007-02-22 16:33 UTC by John T. Rose
Modified: 2009-12-14 20:37 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2008-02-26 23:56:40 UTC

Attachments (Terms of Use)
dmesg output (deleted)
2007-02-22 16:42 UTC, John T. Rose
no flags Details
xorg example configuration that fails with xen but works without xen (deleted)
2007-02-22 16:43 UTC, John T. Rose
no flags Details
Xorg logs when failing under the xen kernel (deleted)
2007-02-22 16:44 UTC, John T. Rose
no flags Details

Description John T. Rose 2007-02-22 16:33:46 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20061215 Red Hat/ Firefox/

Description of problem:
After installing/configuring FC6 on a Dell PE2850, dual Xeon, Radeon RV100 QY [Radeon 7000/VE], things were all happy until I installed the xen kernel. Rebooting with the xen kernel results in X using 100% of the CPU, displaying nothing, and logging

(**) RADEON(0): Idle timed out: 64 entries, stat=0x80010140
(EE) RADEON(0): Idle timed out, resetting engine...
(**) RADEON(0): EngineRestore (32/32)

repeatedly. I've tried various xorg.conf settings without any luck. I'll attach some logs and configuration files.

Version-Release number of selected component (if applicable):
xorg-x11-drv-ati-6.6.3-1.fc6 kernel-xen-2.6.19-1.2911.fc6

How reproducible:

Steps to Reproduce:
1. Boot xen kernel
2. start X

Actual Results:
See description above.

Expected Results:
X should be functional.

Additional info:

Comment 1 John T. Rose 2007-02-22 16:42:36 UTC
Created attachment 148593 [details]
dmesg output

Comment 2 John T. Rose 2007-02-22 16:43:50 UTC
Created attachment 148594 [details]
xorg example configuration that fails with xen but works without xen

Comment 3 John T. Rose 2007-02-22 16:44:35 UTC
Created attachment 148595 [details]
Xorg logs when failing under the xen kernel

Comment 5 Red Hat Bugzilla 2007-07-25 01:38:47 UTC
change QA contact

Comment 7 Chris Lalancette 2008-02-26 23:56:40 UTC
This report targets FC6, which is now end-of-life.

Please re-test against Fedora 7 or later, and if the issue persists, open a new bug.


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