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Conference azur::mcc

Title:DECmcc user notes file. Does not replace IPMT.
Notice:Use IPMT for problems. Newsletter location in note 6187
Moderator:TAEC::BEROUD
Created:Mon Aug 21 1989
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:6497
Total number of notes:27359

3899.0. "Crash! dup page unlock" by GRANPA::DJAMES () Wed Oct 14 1992 13:03

    When performing an operation under from the map interface, the system
    sometimes crashes with "MUNLOCK:dup page unlock". It does not happen
    all of the time but it does happen enough. I rechecked all of the
    kernel params to make sure they were setup according to the install
    guide and release notes and they were ok. The system is A DECstation
    5000/200 32mb mem 600mb disk. This is the SSB 1.2. Note: I notice the
    swap partition is setup for only 60mb, could this be the problem?
    
    
    d.j.
T.RTitleUserPersonal
Name
DateLines
3899.1Patch info in release notesTOOK::MINTZLKG2-2 near pole X3, cube 6072, dtn 226-5033Wed Oct 14 1992 13:558
60 Mb is too small for the swap area.  However, it causes DECmcc to fail,
not a system crash.

Your system crash is due to a bug in ULTRIX.  The DECmcc release notes
have information about a patch for the ULTRIX bug (for ULTRIX V4.2 & V4.2a;
in V4.3 they have apparently fixed the problem).

-- Erik