IT30622: PTMAP ASSERT CAN OCCUR ON TH_TMP_PREIMAGE WITH LOW TEMP SPACE DURING ARCHIVE AND SMART BLOB UPDATES

APAR status

• Closed as program error.

Error description

• If you take an archive and there is a low amount of temp dbspace
  available such that you might fill
  one of these spaces, it's possible to assert with a ptmap on the
  th_tmp_preimage table that is created
  in temp dbspaces to hold preimage copies of smart blobs that are
  modified during archives.
  
  The assertion is comparable to:
  
  11:37:30  Assert Failed: ptmap
  11:37:30   Who: Session(149, user@host, 27944,
  0x564e11b8)
                  Thread(194, arcbackup1, 564a5c08, 9)
                  File: rspartn.c Line: 3875
  11:37:30   Results: Could not complete operation on
  'sbspace_owner:"informix".th_tmp_preimage_(nil)'
  11:37:30   Action: Run 'oncheck -cDI
  sbspace_owner:"informix".th_tmp_preimage_(nil)'
  
  1:37:30  ptmap: bad pagenum = 123 -- only 122 pages
  11:37:30  ptmap(partnum 90000f, logpage 123) error
  
  11:37:30  Stack for thread: 194 arcbackup1
  
   base: 0x000000005be9b000
    len:   266240
     pc: 0x000000000142e819
    tos: 0x000000005bedaa00
  state: running
     vp: 9
  
  0x000000000142e819 (oninit) afstack
  0x00000000014317f1 (oninit) afhandler
  0x0000000001431fd2 (oninit) affail_interface
  0x0000000000d4c04a (oninit) ptmapx
  0x0000000001365e1a (oninit) sba_arc_preimage_read
  0x0000000001369dc2 (oninit) sb_arc_pages_get
  0x0000000000eb9c09 (oninit) arc_dbspace
  0x0000000000eba903 (oninit) arc_scanner
  0x0000000001465c48 (oninit) startup
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Users of Informix Server prior to 12.10.xC14 and 14.10.xC4.  *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Update to Informix Server 12.10.xC14 or 14.10.xC4 (when      *
  * available).                                                  *
  ****************************************************************
  

Problem conclusion

• Fixed in Informix Server 12.10.xC14 and 14.10.xC4.
  

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

  INFORMIX SERVER

• Fixed component ID

  5725A3900

Applicable component levels