Conference bulova::decw_jan-89_to_nov-90

1115.0. "X Server Resets (Xqdsg)" by TOWNS::RYAN () Sun Jul 16 1989 16:17

    I seem to be getting some wierd problems on Ultrix uws 2.0 sdc with repect
    to X server resets.
    
    we're developing a large application using uil, DRM, the works.  the 
    application runs fine, but we run into trouble when we exit.  the x server
    resets after (almost) every exit of the process.  the reset occurs always
    after two successive runs of the application.
    
    the X0msgs log file for the server is a little unenlightening.  the 
    only message that seems of interest is:
    
    	MEMMGR/deallocate_slow - invalid size specified, memblk(dc84c) not freeed
    
    but this messaage does not occur on every machine.  The server (Xqdsg)
    dropped a core once, but unfortueately, i did not save it.  I seem
    to remember that the routine where the exception occured was something
    like receive_mesg_from_client.
    
    The problem exists on several machines, so i've ruled out a hardware bug.
    
    The question is, what could cause the server to lose its mind when a process
    teminates?  we're really not playing any games with resources, and
    are using mostly Dwt functions (some pixmap play, but if the code is
    not used, the crash occurs anyway).
    
    Another symptom i've seen is the infinite loop reset of the server.  the
    server is reset, and during the startup of the server, it is reset again.
    The X0msgs continue (ad nauseum) as follows:
    
    	Now I call scheduler/dispatcher
    	GPX color/monochrome support loaded
    	gpx$InitOutput address=15df0
    	Now I call scheduler/dispatcher
    	GPX color/monochrome support loaded
    	gpx$InitOutput address=15df0
    	Now I call scheduler/dispatcher
    
    and so on.  has anyone seen this behavior?
    
    -paul
    

UWS 2.1 fixed some important server bugs ...so, try it.

Kris