We rebooted one of our RHEL 5.4 systems today (2.6.18-164.6.1.el5xen) and have a stuck cron job reporting the above error every two minutes. The job is /etc/cron.hourly/mcelog.cron

While the system's running a xen kernel, we have done nothing to configure or use it, although it appears the libvirtd and rhn-virtualization-host are enabled in chkconfig.

The actual sub-command from the cron job that is stuck is 'cat /sys/hypervisor/uuid'

I've stopped the libvirtd and rhn-virtualization-host services manually, and killed the mcelog.cron job; still the 'cat' processes (a couple of them) cannot be killed.

Short of another reboot (inconvenient to users), what might be done?

Thanks.
--
Tim Evans, TKEvans.com, Inc.    |   5 Chestnut Court
UNIX System Admin Consulting    |   Owings Mills, MD 21117
http://www.tkevans.com/         |   443-394-3864
http://www.come-here.com/News/  |   [email protected]

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