iSCSI tcmu-runner segfaults randomly in Red Hat Ceph Storage (RHCS) 5

Solution Verified - Updated -

Issue

  • We see the tcmu-runner process segfaulting at random times.
  • The Container is not restarted and needs a manual restart.

  • You can see segfault messages in /var/log/messages

    # cat /var/log/messages | grep segfault
Mar 15 16:18:01 <HOSTNAME> kernel: ework-thread[938865]:  segfault at b0 ip 00007f858c2b60f4 sp 00007f8571fe49b8 error 4 in librados.so.2.0.0[7f858c204000+1a4000]

Environment

  • Red Hat Ceph Storage (RHCS) 5.0
  • Red Hat Ceph Storage (RHCS) 5.1
  • Red Hat Ceph Storage (RHCS) 5.2
  • Red Hat Ceph Storage (RHCS) 5.3
  • Red Hat Ceph Storage (RHCS) 5.3z1

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