clurgmgrd (rgmanager) segfaults and causes nodes to reboot when using restricted failover domains in RHEL 5 Update 3 and earlier

Solution Unverified - Updated -

Issue

  • On one node rgmanager was stopped. The other four nodes get a segfault and the watchdog reboots them
Jan 25 22:52:18 node1 kernel: clurgmgrd[3108]: segfault at 0000000000000000 rip 000000000040a944 rsp 00007fff8b467910 error 4
  • When using rgmanager with a restricted failover domain where some of the nodes of the domain are offline during a failover event, rgmanager can crash

Environment

  • Red Hat Enterprise Linux (RHEL) 5 Update 3 or earlier
  • rgmanager prior to release 2.0.52-1.el5
  • One or more failoverdomains with restricted="1" in /etc/cluster/cluster.conf
  • A service failover/relocation event when one or more nodes in the restricted failoverdomain is not a member

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