Description of problem: Xen hvmloader compiled with gcc 4.6 crashes early when trying to launch Xen HVM guests. Example output: (XEN) io.c:194:d18358 MMIO emulation failed @ 0018:9ffff: 00 e0 de be 00 83 (XEN) hvm.c:1099:d18358 Triple fault on VCPU0 - invoking HVM system reset. Or another failure mode is to just get "HVM Loader" and then a crash. Using gcc 4.5 instead to compile Xen does not expose this bug. Version-Release number of selected component (if applicable): All Xen 4.x versions, including the F15 version of Xen. How reproducible: Often/always. Steps to Reproduce: 1. Try to launch a Xen HVM guest. Actual results: hvmloader crashes. Expected results: hvmloader works and the guests starts OK. Additional info: This bug is fixed in upstream Xen repositories, so the bugfix patch should be added to F15 version of Xen. Upstream xen.org bugfix available here: http://marc.info/?l=xen-devel&m=131117428320002 This bugfix should also be added to rawhide/F16 version of Xen.
xen-4.1.1-2.fc15 has been submitted as an update for Fedora 15. https://admin.fedoraproject.org/updates/xen-4.1.1-2.fc15
Package xen-4.1.1-2.fc15: * should fix your issue, * was pushed to the Fedora 15 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing xen-4.1.1-2.fc15' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/xen-4.1.1-2.fc15 then log in and leave karma (feedback).
xen-4.1.1-2.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report.