Environment
Novell Open Enterprise Server 11 (OES 11) Linux Support Pack
2
Novell Open Enterprise Server 11 (OES 11) Linux Support Pack 1
NetIQ eDirectory
Novell GroupWise 2014
Novell GroupWise
Novell Open Enterprise Server 11 (OES 11) Linux Support Pack 1
NetIQ eDirectory
Novell GroupWise 2014
Novell GroupWise
Situation
Login through SSH client just hangs.
ps -ejf hangs and does not complete listing.
Any process using a LUM connection is in a blocked or waiting state.
gstack of namcd process shows all threads waiting on a futex_wait_queue_me
Access to server is slow or slow server performance and response
Slow response with bash commands such as 'top' and others or even fail to load until the 'namcd' process is stopped
ps -ejf hangs and does not complete listing.
Any process using a LUM connection is in a blocked or waiting state.
gstack of namcd process shows all threads waiting on a futex_wait_queue_me
Access to server is slow or slow server performance and response
Slow response with bash commands such as 'top' and others or even fail to load until the 'namcd' process is stopped
Resolution
Apply the latest Open Enterprise Server 11 (OES 11) patches via the OES update channel on Open Enterprise Server 11 (OES 11) Linux Support Pack
2
Apply the latest Open Enterprise Server 11 (OES 11) patches via the OES update channel on Open Enterprise Server 11 (OES 11) Linux Support Pack 1
Apply the patch: oes11sp1-edirectory-887-patch6-hot-patch
RPM: novell-NLDAPbase-8.8.7.4-0.4.6.1
Apply the latest Open Enterprise Server 11 (OES 11) patches via the OES update channel on Open Enterprise Server 11 (OES 11) Linux Support Pack 1
Apply the patch: oes11sp1-edirectory-887-patch6-hot-patch
RPM: novell-NLDAPbase-8.8.7.4-0.4.6.1
Cause
The eDirectory patch links in or includes the newer OpenSSL 0.9.8y
libraries which fixes a deadlock condition when decoding public
keys.
Additional Information
All 12 namcd process appear to be blocked behind the "futex_wait_queue_me" call. PID: 6326 TASK: ffff88040e5f0040 CPU: 3 COMMAND: "namcd" #0 [ffff88040e5f3c08] schedule at ffffffff814471d9 #1 [ffff88040e5f3d50] futex_wait_queue_me at ffffffff8108eb95 #2 [ffff88040e5f3d90] futex_wait at ffffffff8108ed57 #3 [ffff88040e5f3ee0] do_futex at ffffffff810915e8 #4 [ffff88040e5f3f00] sys_futex at ffffffff81091772 #5 [ffff88040e5f3f80] system_call_fastpath at ffffffff81451392 RIP: 00007f8a3507f2d4 RSP: 00007f8a3285d878 RFLAGS: 00010202 RAX: 00000000000000ca RBX: ffffffff81451392 RCX: 0000000000000000 RDX: 0000000000000002 RSI: 0000000000000080 RDI: 00007f8a35b10ab0 RBP: 0000000000000001 R8: 00007f8a35b10ab0 R9: 00000000000018b6 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 0000000000695110 R15: 00000000006950f0 ORIG_RAX: 00000000000000ca CS: 0033 SS: 002b