Red Hat Bugzilla – Bug 235538
i686 fc6 xen kernel crashes on boot during agpgart init
Last modified: 2009-12-14 15:37:56 EST
Description of problem:
fc6 i686 kernel crashes on boot during agpgart init. Regular non-xen kernel
Version-Release number of selected component (if applicable):
kernel-2.6.19 and newer official FC6 released kernels. I have not tried any
Happens every single time reliably.
Steps to Reproduce:
1. Tell Grub to boot on Xen kernel.
2. Watch dmesg..
Linux agpgart interface v0.101 (c) Dave Jones
agpgart: Detected an Intel 965G Chipset.
BUG: unable to handle kernel NULL pointer dereference at virtual address 00000008
Not to crash..
Setting agp=no in kernel boot flags of dom0 fixes this problem.
Gigabyte GA-965P-DS3 motherboard (rev 1.0, bios F10)
Intel Conroe E6400 (Core 2 Duo) CPU
Please note that non-xen kernels work very happily and very reliably on this system.
Created attachment 151897 [details]
Full bootlog of xen kernel boot up and crash.
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.