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  1. #1
    Join Date
    Jun 2008

    Unanswered: Informix Assert Failure

    We have Informix 9.21 UC5 running on Solaris 9 and are peridically(a couple of times per week) receiving an assert failure, which produces an af file which we so far have not been deleted before we can copy it. The errors in the message log are as follows:

    02:34:24 Checkpoint loguniq 58687, logpos 0x9b4018

    02:36:19 Assert Failed: No Exception Handler
    02:36:19 Informix Dynamic Server 2000 Version 9.21.UC5
    02:36:19 Who: Session(1, root@mac-prod, 0, 828620824)
    Thread(11, main_loop(), 3160c018, 1)
    File: mtex.c Line: 405
    02:36:19 Results: Exception Caught. Type: MT_EX_OS, Context: mem
    02:36:19 Action: Please notify Informix Technical Support.
    02:36:19 stack trace for pid 2676 written to /tmp/af.3f300f3
    02:36:19 See Also: /tmp/af.3f300f3, shmem.3f300f3.0
    02:36:26 mtex.c, line 405, thread 11, proc id 2676, No Exception Handler.
    02:36:27 The Master Daemon Died
    02:36:27 PANIC: Attempting to bring system down
    02:36:27 semctl: errno = 22

    02:36:27 semctl: errno = 22

    After this happens we usually reboot the server.

    Any ideas would be appreciated. We do not have Informix support.


  2. #2
    Join Date
    Sep 2004

    Assert failure

    I do not know if this helps the error semctl errno = 22 means that it has attempted to use a semaphore that does not exist. Any connections using shared memory connections need to have a portion of a semaphore to store the connection information. If you run ipcs -s it will list the current seme

    Assuming you went throught the machine notes to update the kernal you might want to try staying away from shared memory connections and only use tcp connections.

    Tech support would be the best to solve this issue, which I am not part of.

    If you have support for Solaris you might want to contact them to see if they can help with the semctl error.


  3. #3
    Join Date
    Apr 2007
    Jundiai / SP - Brasil
    look in /tmp/af.3f300f3 .
    Inside you can get more information, like: what session cause the problem and what the stack of the session.

    So then , you can look on IBM site if not there is a bug relation .
    César Inacio Martins
    Jundiai / SP - Brasil - em Português - English (translated by Google).

  4. #4
    Join Date
    Jun 2008

    New Lin informax

    Can anyone tell me what i need to do to convert a UNIX Informix installation to a Windows Infomix installation. I was provided a tar file and extracted it with Cygwin. We go to import it and and it doesn't seem to work. Do we need to convert the UNIX format to a Windows format. Any help would be much appreciated.

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