[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] pv 2.6.31 (kernel.org) and save/migrate, domU BUG()
On Sun, Nov 08, 2009 at 05:41:53PM +0200, Pasi Kärkkäinen wrote: > On Sun, Nov 08, 2009 at 07:29:58AM -0800, Dan Magenheimer wrote: > > > > > > machine and it fails to save also. Are you able to save > > > > > > 2.6.31{,.5} successfully? On latest xen-unstable? > > > > > > (NOTE: Yes, I do have CONFIG_XEN_SAVE_RESTORE=y... don't > > > > > > know if that is important.) > > > > > > Ok. I just tried with a Fedora 12 (rawhide) PV guest. I was able to > > > "xm save" and "xm restore" it without problems. > > > > > > But I noticed there was a BUG printed on the guest console: > > > http://pasik.reaktio.net/xen/debug/dmesg-2.6.31.5-122.fc12.x86 > > > _64-saverestore.txt > > > BUG: sleeping function called from invalid context at > > > kernel/mutex.c:94 > > > in_atomic(): 0, irqs_disabled(): 1, pid: 1052, name: kstop/0 > > > Pid: 1052, comm: kstop/0 Not tainted 2.6.31.5-122.fc12.x86_64 #1 > > > > Ok, so it appears there is something problematic with > > saving an upstream kernel. It might be (partially) fixed > > in Fedora 12 or maybe there is some other environmental > > difference which makes save fail entirely on my system. > > > > Yeah, fedora kernel has some patches, but it should be pretty > close to upstream kernel.. > > btw was your guest UP or SMP? Mine was UP.. > Ok.. saving SMP guest fails for me too: [2009-11-09 23:44:38 1353] DEBUG (XendCheckpoint:110) [xc_save]: /usr/lib64/xen/bin/xc_save 28 2 0 0 0 [2009-11-09 23:44:38 1353] INFO (XendCheckpoint:417) xc_save: failed to get the suspend evtchn port Jeremy: Ideas what's causing that? "xm save" for UP 2.6.31.5 guest works OK, but for SMP guest it fails with the error above. -- Pasi _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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