Red Hat Bugzilla – Bug 239249
XEN DOM0 Kernel does not detect multiple processors
Last modified: 2007-11-30 17:12:04 EST
Description of problem:
XEN DOM0 kernel does not detect all 4 processors in my system. If I run "xm
vcpu-set 0 4" it causes a crash and a system freeze.
Version-Release number of selected component (if applicable): 2.6.20-2925.5.fc7xen
1. Boot 2.6.20-2925.5.fc7xen with xen on a multi-processor system
2. To duplicate crash, run "xm vcpu-set 0 2"
Kernel sees a single processor
Kernel sees four processors (or however many are present)
Additional info: DMESG and crash message from attempted "xm vcpu-set 0 4" attached
Created attachment 154235 [details]
messages from xen bootup
This has been fixed in BZ 238015 (there are a couple patches in that BZ if
you are eager to test it out), just hasn't made it into latest rawhide
yet. I hadn't tested vcpu-set when I fixed SMP, but I'm sure it's from
the same source issue...Yes, just tested and vcpu-set works as expected
in a fixed kernel.