IC90729: ASSERTION CRASH SEGV FOUND DURING MT_SHM_FREE 1 WITH VARIABLE ROW SIZES BEING SELECTED AND PROGRAM CURSOR IS OPENED AND CLOSED

APAR status

• Closed as fixed if next.

Error description

• Env : HPia64 11.50.FC9 and 11.50.FC9W2X3.
  
  The customer has been experiencing daily crashes with various
  stacks being shown ...
  
  11:33:06  Found during mt_shm_free 1
  11:33:06  Pool '39' (0xc00000000f9d4040)
  11:33:06  Bad block header 0xc00000000f4e4000
  blk-64
  ...
  ...
  11:33:06  Can't find corrupted block's previous block
  
  (s/IDS1150FC9/bin/oninit)afstack
  (s/IDS1150FC9/bin/oninit)afhandler
  (s/IDS1150FC9/bin/oninit)affail_interface
  (s/IDS1150FC9/bin/oninit)mt_free
  (s/IDS1150FC9/bin/oninit)old_rhpfree
  (s/IDS1150FC9/bin/oninit)relsdbmem
  (s/IDS1150FC9/bin/oninit)doreleasesdb
  (s/IDS1150FC9/bin/oninit)sqscb_cleanup
  (s/IDS1150FC9/bin/oninit)destroy_session
  (s/IDS1150FC9/bin/oninit)sq_exit
  (s/IDS1150FC9/bin/oninit)sqmain
  (s/IDS1150FC9/bin/oninit)listen_verify
  (s/IDS1150FC9/bin/oninit)spawn_thread
  (s/IDS1150FC9/bin/oninit)startup
  (s/IDS1150FC9/bin/oninit)coroutine_start
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Users who reopen existing cursors after closing it multiple  *
  * times and the query is a REMOTE query that gets executed     *
  * entirely on REMOTE site can cause memory corruption.         *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to IDS version 11.50.xC10                            *
  ****************************************************************
  

Problem conclusion

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

Applicable component levels

• RB15 PSY

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