On Sat, Jan 09, 2010 at 03:45:15PM +0200, Pasi Kärkkäinen wrote: > On Fri, Jan 08, 2010 at 10:08:25AM -0500, Tait Clarridge wrote: > > > > Also please try running "xm console" for the guest and see what it does > > > > and where it crashes.. > > Make sure your domU kernel has these kernel cmdline options: > "console=hvc0 earlyprintk=xen" Do these options work with the F11 guest kernel (2.6.30) as well? > Also, what hardware was this? There has been some fixes to the incorrect > cpuid masking causing guest kernel crashes on new cpus, and some of > those are fixed in upcoming EL 5.5 Xen. Are these going to be in 5.4? I'm running 2.6.18-164.11.1.el5xen and the fedora kernels for F11 and F12 are not very stable for me. Dom0 is a Centos 5.4 2.6.18-164.9.1.el5xen kernel. These fedora kernels seem to lockup (processes get stuck in D state) whenever put under any load: kernel-2.6.30.10-105.fc11.x86_64 kernel-2.6.31.6-166.fc12.x86_64 kernel-2.6.31.9-174.fc12.x86_64 Yes, I tried a fedora 11 kernel on a fedora 12 system. This is the most stable for me. Here are some bugzilla entries (one posted by me) that point to this problem: kernel 2.6.31 processes lock up in D state https://bugzilla.redhat.com/show_bug.cgi?id=550724 FC12 2.6.31.9-174.fc12.x86_64 hangs under heavy disk I/O https://bugzilla.redhat.com/show_bug.cgi?id=551552 Any help appreciated. -- Norman Gaywood, Computer Systems Officer University of New England, Armidale, NSW 2351, Australia ngaywood at une.edu.au Phone: +61 (0)2 6773 3337 http://mcs.une.edu.au/~norm Fax: +61 (0)2 6773 3312 Please avoid sending me Word or PowerPoint attachments. See http://www.gnu.org/philosophy/no-word-attachments.html