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): firstboot-1.4.18-1 kernel-xen-2.6.17-1.2519.4.21.el5 How reproducible: Always Steps to Reproduce: 1. Reboot freshly installed system. 2. Wait for firstboot 3. Actual results: System freezes when firstboot is run on a freshly installed system. Expected results: Normal firstboot procedure. Additional info:
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] configuration file
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 inclusion.
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 updated xorg-x11-xinit 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 kernel-xen-2.6.18-1.2849.fc6 xorg-x11-server-Xorg-1.1.1-47.1.fc6 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.