[Xen-users] powerdown problem on XEN

[Atom2 <ariel.atom2@xxxxxxxxxx>]

Hi guys,
I have a problem with powering down my system under the XEN hypervisor. 
System details are as follows:
gentoo linux, X86_64
XEN version 4.2.2
linux hardened kernel 3.9.5 as dom0
Xeon E3 1260L processor (vt-d capable)
32GB ECC RAM which has been thoroughly tested - so should be o.k.

when I issue "shutdown -h now" from dom0 the system usually reboots 
instead of turning off power to the machine. There's the odd occassion 
(probably 1 in every 10 to 20 shutdown attempts) when the system power 
is actually turned off. There seems to be no rule to follow when this 
happens.
If I use the exact same kernel and start w/o the XEN hypervisor 
powerdown *always* works as expected when I use "shutdown -h now". So on 
the face of it, this seems to point to the XEN hypervisor as the culprit.
Any idea/help on how to track down and solve the issue would be very 
much appreciated. If you require any more information / log data, I'm 
more than happy to provide that.
Unfortuantely however, there seems to be no log / dmesg data available 
during shutdown as syslog-ng is stopped. The only thing I can confirm 
that there's no strange output on the console during either bootup or 
shutdown: All services / daemons start up o.k. and also during shutdown 
all services seem to come to a proper halt. The root filesystem is 
re-mounted r/o and the last message reads "Power down" - only to then 
reboot the system by going through a BIOS power-on sequence.
Thanks and regards,

Atom2

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
http://lists.xen.org/xen-users