IZ49810: HWSVRRMD CORE DUE TO UNRESERVE IS BEING CALLED MORE THAN ONCE

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APAR status

• Closed as program error.

Error description

• After all HMCs reboot, IBM.HWSVRRM on all HMCs CORE DUMP.
  CRHS is not working
  
  # frame -l
  2610-422 Cannot execute the command on node xx.xx.xx.xx.
  The
  resource manager IBM.HWSVRRM is not available.
  
  (gdb) where
  #0 0xffffe410 in ?? ()
  #1 0x406ebb59 in *__GI_abort () from /lib/tls/libc.so.6
  #2 0x406e3b2a in *__GI___assert_fail () from
  /lib/tls/libc.so.6
  #3 0x401ad372 in rsct_rmf2v::RMRcp::unreserve()
  (this=0x818bea0)
  at
  /project/spreldvoh/build/rdvohs003a/src/rsct/SDK/rmf/RMCl
  asses.C:10209
  #4 0x0804f429 in set_manager_configured() ()
  #5 0x0804f17d in HWSVRRMDaemon::mainInitThread(void*) ()
  #6 0x401f5c9e in rsct_rmf2v::RMInitThread::run(void*)
  (this=0x80be9b0, theParameters=0x80b9868)
  at
  /project/spreldvoh/build/rdvohs003a/src/rsct/SDK/rmf/RMDa
  emon.C:927
  #7 0x403835ac in rsct_base::CRunnable::threadMain()
  (this=0x80be9b0)
  at
  /project/spreldvoh/build/rdvohs003a/src/rsct/SDK/base/CRu
  nnable.C:664
  #8 0x40381bc2 in stubCRunnable (pToken=0x80be9b0) at
  /project/spreldvoh/build/rdvohs003a/src/rsct/SDK/base/CRu
  nnable.C:81
  #9 0x40052be3 in start_thread () from
  /lib/tls/libpthread.so.0
  
  cat IBM.HWSVRRM.stderr
  (/data3/rootpl/19316/19316.001.806-trace.out)
  IBM.HWSVRRMd:
  /project/spreldvoh/build/rdvohs003a/src/rsct/SDK/rmf/RMCl
  asses.C:10209: void rsct_rmf2v::RMRcp::unreserve():
  Assertion '(pDataInt->itsProperties & 0x80000000) != 0'
  failed.
  
  The trace file is showing:
  
   02:06:02 PM.638338 T(1083370416) _RMF
  RMVerUpdGbl::doUpdates Entered.
   02:06:02 PM.638354 T(1083370416) _RMF             Error
  98305 was returned from
   RMVerUpdGbl::doUpdates on line 786 of
  /project/spreldvoh/build/rdvohs003a/src/rsct/SDK/rmfg/RMV
  erUpdGbl.C.
  
  Message=2645-000 Operation failed due to error 0 returned
  from RMVerUpdGbl::evalQuorum.
  
  FFDCID= ^A
  

Local fix

• Remove the hmcs from the peer.
  Ensure that CSM is at the latest level.
  Add the HMCs back into the peer one at a time.
  Make sure that the Manager_Configured attribute is "1"
  for the HMCs - run lsrhws -m.
  If it is not "1" then force it to be "1" by using the
  chrhws command.
  

Problem summary

• It is possible for IBM.HWSVRRM to core due to a code bug.
  In the set_manager_configured function in HWSVRRMDaemon.C,
  a call is made to unreserve twice with the same pointer.
  This second call can potentially cause an assert.
  

Problem conclusion

• HWSVRRMDaemon.C has been modified to only call unreserve
  once in the set_manager_configured function.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  IZ48069

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  CSM HMC

• Fixed component ID

  5765E88LH

Applicable component levels

• R170 PSY

     UP

PTF to Fileset Mapping

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• U827335 csm.server 1.7.1.2

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• U830583 csm.server 1.7.1.4

• U832562 csm.server 1.7.1.5

• U834204 csm.server 1.7.1.6

• U835517 csm.server 1.7.1.7

• U836300 csm.server 1.7.1.8

• U836480 csm.server 1.7.1.9

• U839132 csm.server 1.7.1.10

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