PH46451: CLEARMAKE MAY CRASH ON EXIT IF SIGNALS RECEIVED WHILE EXITING

APAR status

• Closed as program error.

Error description

• When performing a clearmake build on a Unix or Linux host, there
  is a short window between the time that the build completes and
  clearmake exits where a signal arrival may cause a clearmake to
  crash.
  
  The crash dump resembles the following:
  (gdb) #0  0x00007f689f7abf81 in pthread_join () from
  /usr/lib64/libpthread.so.0
  #1  0x00007f689d2f4066 in ccthread_join ()
     from /opt/rational/clearcase/linux_x86_64/shlib/libatriaks.so
  #2  0x00007f689d3295d1 in pfm_exit ()
     from /opt/rational/clearcase/linux_x86_64/shlib/libatriaks.so
  #3  0x00007f689d329843 in pfm_test_raise ()
     from /opt/rational/clearcase/linux_x86_64/shlib/libatriaks.so
  #4  0x00007f689d32054b in imsg_print_sharedv ()
     from /opt/rational/clearcase/linux_x86_64/shlib/libatriaks.so
  #5  0x00007f689d320e2a in imsg_print ()
     from /opt/rational/clearcase/linux_x86_64/shlib/libatriaks.so
  #6  0x00007f689d32a7a8 in pfm_signal_handler_int ()
     from /opt/rational/clearcase/linux_x86_64/shlib/libatriaks.so
  #7  0x00007f689d32a915 in pfm_signal_handler ()
     from /opt/rational/clearcase/linux_x86_64/shlib/libatriaks.so
  #8  <signal handler called>
  #9  0x00007f689f7b17bd in close () from
  /usr/lib64/libpthread.so.0
  #10 0x00007f689d3283d6 in pfm_close_notify_channel ()
     from /opt/rational/clearcase/linux_x86_64/shlib/libatriaks.so
  #11 0x00007f689d3295d6 in pfm_exit ()
     from /opt/rational/clearcase/linux_x86_64/shlib/libatriaks.so
  #12 0x00000000004050cf in main ()
  
  frame 9 is a close() system call where clearmake is closing an
  inter-thread communication pipe. Frame #5 is an attempt to write
  an error message stating that the pipe being closed cannot be
  written to.
  
  The window where this can happen is exceedingly short and the
  issue can be very intermittent.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Users of ClearCase clearmake.                                *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * ClearCase clearmake may crash when exiting.                  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• A fix is available in ClearCase versions 9.0.1.14, 9.0.2.6 and
  9.1.0.3
  

Temporary fix

Comments

APAR Information

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

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

Fix information

• Fixed component name

  CLEARCASE WIN

• Fixed component ID

  5724G2900

Applicable component levels