Red Hat Bugzilla – Bug 206082
i810: xen kernel / firstboot causes machine to freeze
Last modified: 2007-11-30 17:07:33 EST
Description of problem:
On a freshly installed system, firstboot causes a system freeze requiring a hard
power off. No messages are in the system logs to determine the cause. Booting
single-user and disabling firstboot will work around the problem.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Reboot freshly installed system.
2. Wait for firstboot
System freezes when firstboot is run on a freshly installed system.
Normal firstboot procedure.
This does not happen with the non-xen kernel.
Can you attach the X config file and startup log from an affected system?
Created attachment 136410 [details]
Created attachment 136411 [details]
X startup log
I will be out of town until Sep 23. If you need more information, let me know
and I'll provide it when I return. Thanks.
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release. Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release. This request is not yet committed for
Please verify that this bug still exists in xorg-x11-server 1.1.1-48.2.el5 or
later (available in Beta2). A major bug was fixed regarding the interaction of
Xen with the processor's vm86 mode, which is used to initialize video and which
is handled differently between normal and Xen-enabled kernels.
I installed beta2 and it does not crash at firstboot.
I did see what appeared to be a python stack trace on when firstboot ran (while
still in text mode), but I was unable to capture any information and the logs
did not contain it.
Please check bug #216766 for a regression before closing. Thanks.
Although I am using Fedora 6xen, the problem is exacerbated by the fact that
now, the lockup as described is occurring randomly. Sometimes on a boot,
sometimes on a logout, and sometimes hours after a login. Concerning Fedora, I
have determined that the problem appears to be linked to one of 3 files namely:
updated xorg-x11-drv-i810 packages
updated xorg-x11-server packages
Possibly, there is an ATI package that may be implicated. It was posted to core
at the same time xorg-x11-drv-ati packages
This problem disappears entirely if the driver is switched from i810 to vesa in
the /etc/X11/xorg.conf file
On Leslie's comment #11, I installed Xen on my FC6 notebook computer with an ATI
Radeon P24 1P [Radeon Mobility X600]. On this computer there are two problems:
1) There is no output whatsoever between grub and rhgb.
2) The system reboots when rhbg hits firstboot
Log and config to follow.
Created attachment 142674 [details]
xorg config file for Radeon
Created attachment 142675 [details]
xorg log file for Radeon
Closing, x86emu in X appears to be as correct as it's going to get without
fixing the kernel.
A package has been built which should help the problem described in
this bug report. This report is therefore being closed with a resolution
of CURRENTRELEASE. You may reopen this bug report if the solution does
not work for you.