Topic
4 replies Latest Post - ‏2012-12-13T19:15:47Z by SystemAdmin
p175
p175
49 Posts
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Pinned topic 10.1.2 Memory Corruption messages

‏2012-12-12T17:26:51Z |
Updated DB2 yesterday to the latest 10.1.2 build, and early this morning had several messages appear in the db2diag log. I think I was doing some reorgs at the time. Several corresponding diagnostic txt files in the db2 folder. Anyone yet seen this and know what I am supposed to do with it ? Should I be concerned ?

2012-12-12-03.00.00.489000-300 I1701F995 LEVEL: Severe
PID : 2640 TID : 4244 PROC : db2fmp64.exe
INSTANCE: DB2 NODE : 000
HOSTNAME: Tim-PC
EDUID : 4244
FUNCTION: DB2 UDB, SQO Memory Management, sqloDiagnoseFreeBlockFailure, probe:10
MESSAGE : Possible memory corruption detected.
DATA #1 : ZRC, PD_TYPE_ZRC, 4 bytes
0x820F0002
DATA #2 : Corrupt block address, PD_TYPE_CORRUPT_BLK_PTR, 8 bytes
0x0000000001a2dc20
DATA #3 : Block header, PD_TYPE_BLK_HEADER, 24 bytes
0x0000000001A2DC08 : 201A 0000 0000 B0FA CECA EF31 8F24 1600 ..........1.$..
0x0000000001A2DC18 : 201A 0000 0000 B0FA .......
DATA #4 : Data header, PD_TYPE_BLK_DATA_HEAD, 48 bytes
0x0000000001A2DC20 : 5351 3454 4553 5400 201A 0000 0000 B0FA SQ4TEST. .......
0x0000000001A2DC30 : C8DB A201 0000 0000 0000 0000 0000 0000 ................
0x0000000001A2DC40 : 4000 0000 0000 0000 0000 0000 0000 0000 @...............

2012-12-12-03.00.00.520000-300 E2698F475 LEVEL: Severe
PID : 2640 TID : 4244 PROC : db2fmp64.exe
INSTANCE: DB2 NODE : 000
HOSTNAME: Tim-PC
EDUID : 4244
FUNCTION: DB2 UDB, SQO Memory Management, sqloDiagnoseFreeBlockFailure, probe:999
MESSAGE : Memory validation failure, diagnostic file dumped.
DATA #1 : String, 21 bytes
Corrupt block header.
DATA #2 : File name, 29 bytes
2640.4244.mem_diagnostics.txt
Updated on 2012-12-13T19:15:47Z at 2012-12-13T19:15:47Z by SystemAdmin
  • SystemAdmin
    SystemAdmin
    5837 Posts
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    Re: 10.1.2 Memory Corruption messages

    ‏2012-12-13T00:06:58Z  in response to p175
    You should be concerned.

    Search google using "SQO Memory Management Possible memory corruption" and you should find similar IBM APARs from 9.7

    Probably contact IBM support
    • p175
      p175
      49 Posts
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      Re: 10.1.2 Memory Corruption messages

      ‏2012-12-13T04:47:58Z  in response to SystemAdmin
      This is Express-C, there is no contacting IBM as there is no Support as far as I know. Support from IBM is supposed to come from this forum isn't it ?

      This is the second time I have adopted a fixpak early from IBM and apparently the second time I have been burned by it. Foolish me eyeroll.
      • p175
        p175
        49 Posts
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        Re: 10.1.2 Memory Corruption messages

        ‏2012-12-13T19:00:02Z  in response to p175
        I've gone back to the previous 10.1 as the 10.1.2 release has too many issues period.
        Shades of previous problems when 9.7.4 went to 9.7.5.

        Memory Corruption issues, generic errors and now db2look fails with some weird field I have never seen before saying it is not valid where used. So, farewell 10.1.2.
        • SystemAdmin
          SystemAdmin
          5837 Posts
          ACCEPTED ANSWER

          Re: 10.1.2 Memory Corruption messages

          ‏2012-12-13T19:15:47Z  in response to p175
          Take a glance at activity on the forum to assess who much assistance you will receive here. It is unlike the forums maintained by the other DB vendors.

          If you need support, your only option is DB2 FTL subscription.

          Its too bad IBM does not have a process, that I am aware of, to accept bug reports from all the free testing done by users using the free version of DB2 Express.