Got Bus error (core dumped) when run the nova-compute from nova user

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http://serverfault.com – I got error when I try to restart the nova-compute service on my compute node. [root@mycompute ~]# service nova-compute restart Stopping OpenStack Nova Compute Worker: [ OK ] Starting OpenStack Nova Compute Worker: [FAILED] I check in the log file /var/log/nova/nova-compute.log but nothing is logged in that file. Then I try to run the command with nova user. [root@mycompute ~]# su -s/bin/bash nova bash-4.1$ /usr/bin/nova-compute Bus error (core dumped) I got the log in /var/log/messages abrt[20666]: saved core dump of pid 20664 (/usr/bin/python) (HowTos)