On 09/21/09 12:57, Pasi Kärkkäinen wrote:
Hello Jeremy and others,
I friend of mine is trying to install x86_64 Fedora 11 Xen PV domU on CentOS 5.4 x86_64 dom0. He's getting a kernel crash.. so I was wondering if you've seen this one before.
A couple of kernel boot/crash logs: http://v6.fi/misc/f11_64_kernel.debug2.txt http://v6.fi/misc/f11_64_kernel.debug4.txt
(early) Kernel command line: root=/dex/xvda1 ro earlyprintk=xen (early) Initializing CPU#0 (early) invalid opcode: 0000 [#1] (early) SMP (early) (early) last sysfs file: (early) CPU 0 (early) (early) Modules linked in:(early) (early) Pid: 0, comm: swapper Not tainted 2.6.29.4-167.fc11.x86_64 #1 (early) RIP: e030:[<ffffffff81397963>] (early) [<ffffffff81397963>] xsave_cntxt_init+0xba/0x199
This looks like the bug where Xen doesn't filter out the xsave feature flag and the kernel tries to use it, fixed in change ef7616ff29ad. Kernel change e826fe1ba15 works around the Xen bug by doing its own masking (I think it got into 2.6.30).
There's also a "noxsave" kernel parameter, but that may have been added after 2.6.29.
J