XEN: kernel dump is not working correctly on Dom0

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Environment

SUSE Linux Enterprise Server 11 Service Pack 3 (SLES 11 SP3)
SUSE Linux Enterprise Server 11 Service Pack 2 (SLES 11 SP2)

Situation

After triggering kdump on Dom0, system just freezes and nothing happens even after long time.

Resolution

It is important to verify whether the default kernel is installed on the machine as kdump is working with default and not with the Xen kernel:

systemDom0:~ # rpm -qa | grep kernel
kernel-xen-3.0.101-0.21.1
kernel-default-base-3.0.101-0.21.1
kernel-xen-base-3.0.101-0.21.1
kernel-default-3.0.101-0.0.21.1

When default kernel is missing, please install appropriate default kernel version and trigger the kdump once again.

Cause

Kdump is using the default kernel to generate a dump.

Additional Information

See TID 7001383: Configure XEN Dom0 for a kernel dump for details about Dom0 kdump configuration

Disclaimer

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