Description of problem: Windows i386 guests with multiple vcpus will BSOD on AMD i386 hosts, We saw the BSOD when it reboot after installation complete, and can reproduce it by reboot the guest with 2 vcpus. On AMD x86_64 hosts, the guest may keep hanging there while rebooting. No issue found on Intel hosts. Single vcpu guest works well on AMD hosts. Version-Release number of selected component (if applicable): kernel-xen-2.6.18-238.21.1.el5 How reproducible: 100% Steps to Reproduce: 1. install a windows i386 guest with 2vcpus on AMD i386 host, or reboot a pre-installed guest. Actual results: BSOD on i386 hosts Hang on x86_64 hosts Expected results: Guest should work well Additional info: [1] it may be the same issue with https://bugzilla.redhat.com/show_bug.cgi?id=723854 I can reproduce the BSOD with
> I can reproduce the BSOD with sorry, lost the version: kernel-xen-2.6.18-278.el5
Created attachment 517984 [details] Windows XP BSOD
Created attachment 517989 [details] Dom 2 BSOD while rebooting
Created attachment 517990 [details] qemu-dm log
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release.
*** This bug has been marked as a duplicate of bug 720936 ***