[Xen-devel] Kernel paging request error

[Sławek Kosowski <slawek.k_xl@xxxxx>]

Reposting from xen-users (no response)
I'm having a problem with: http://pastebin.com/CuGHqwhy
It occurs on the reboot, but sometimes, when I try to start manually one of
my machines. Sometime, one of the machines does not want to start
permanently and I have to reinstall/restore it.
This problem comes for me randomly, but maybe there is a trigger. 
I've tried to follow:
http://xen.1045712.n5.nabble.com/2-6-32-27-dom0-BUG-unable-to-handle-kernel-paging-request-td3323011.html
and raise /proc/sys/vm/min_free_kbytes, but it did not help.

System info:
Debian, Linux dom0 3.2.0-0.bpo.3-amd64
i libxenstore3.0 4.0.1-5.4 
Xenstore communications library for Xen
ii xen-hypervisor-4.0-amd64 4.0.1-5.4 The
Xen Hypervisor on AMD64
ii xen-linux-system-3.2.0-0.bpo.3-amd64 3.2.23-1~bpo60+2 Xen
system with Linux 3.2 on 64-bit PCs (meta-package)
ii xen-linux-system-amd64 3.2+45~bpo60+1 Xen
system with Linux for 64-bit PCs (meta-package)
ii xen-tools 4.2-1 Tools
to manage Xen virtual servers
ii xen-utils-4.0 4.0.1-5.4 XEN
administrative tools
ii xen-utils-common 4.0.0-1 XEN
administrative tools - common files
ii xenstore-utils 4.0.1-5.4 
Xenstore utilities for Xen
ii xenwatch 0.5.4-2 
Virtualization utilities, mostly for Xen


Any advices how to solve ?
Can it be a hardware problem with RAM ?

Regards
Slawek



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