[Xen-users] Core Dump of a 64 bit domU from 32 bit dom0

To:	xen-users@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-users] Core Dump of a 64 bit domU from 32 bit dom0
From:	Puneet Lakhina <puneet.lakhina@xxxxxxxxx>
Date:	Tue, 18 May 2010 11:25:08 -0700
Delivery-date:	Tue, 18 May 2010 11:26:37 -0700
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Hi,

I have a setup in which the hypervisor and my domU are 64 bit but the
dom0 is 32 bit. Now when I try to core dump my domU from the dom0, the
".xen_prstatus" section of the elf file contains data based on 32 bit
struct sizes instead of 64 bit struct sizes (vcpu_guest_context *
noOfVcpus). That is the size of that section is 2800 * no of vcpus
(http://lxr.xensource.com/lxr/source/tools/include/xen-foreign/reference.size)
instead of 5168 * no of cpus.

Is there any way to get the right data in the core dump file?

--
Regards,
Puneet
http://www.cs.ucsb.edu/~puneet

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[Xen-users] Core Dump of a 64 bit domU from 32 bit dom0