[CentOS-virt] reboot guest on panic
Dan Hrabarchuk
danh at konnxsys.comSun Mar 14 21:06:32 UTC 2010
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Try this in the guest: echo "1" > /proc/sys/kernel/panic_on_oops echo "5" > /proc/sys/kernel/panic On 03/13/2010 05:03 PM, Norman Gaywood wrote: > I have a guest that keeps crashing and want to automatically reboot it > when it crashes. See: > > xen PV guest kernel 2.6.32 processes lock up in D state > https://bugzilla.redhat.com/show_bug.cgi?id=550724 > > if you want to look at the details on the crashing. > > Anyway, I boot the guest with the kernel command line parameter: > > hung_task_panic=1 > > I have kernel.panic = 15 in the guest /etc/sysctl.conf > > In the guest config file in dom0 I have: > > on_poweroff = "destroy" > on_reboot = "restart" > on_crash = "restart" > > The guest manages to panic when it detects the hung tasks and I get this > on the guest console: > > Kernel panic - not syncing: hung_task: blocked tasks > Rebooting in 15 seconds.. > > However, it never restarts. It just hangs around until I do a > > xm destroy<guest> > xm create<guest> > > Have I missed something? > >
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