[Xen-users] kexec into dom0? my machine can't reboot reliably

[Tomasz Chmielewski <mangoo@xxxxxxxx>]

I have a couple of Xen servers which can't reboot reliably - only rarely 
it reboots fine; mostly, it will end up with a blank screen, and someone 
has to physically reboot the machine. Not that great if you're working 
remotely.

I thought a good workaround would be to use kexec when the machine needs 
to be rebooted.
So I tried:

# kexec -l xen-3.1
# kexec -e

And xen kernel started, complaining that the dom0 kernel was not 
specified. So it works, kind of. So, let's add the dom0 kernel:

# kexec --initrd vmlinuz-2.6.18-xen-uncomp -l xen-3.1
Invalid memory segment 0xc0100000 - 0xc034cfff


Not that great. Is there something I'm missing?

I tried to execute it from two machines: running a 2.6.18 dom0 kernel, 
and running a regular 2.6.22 kernel - both failed in the same way.
kexec version I'm running is:

kexec 1.101 released 15 February 2005

Any hints?


--
Tomasz Chmielewski
http://wpkg.org

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