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тАО03-28-2009 12:06 PM
тАО03-28-2009 12:06 PM
not having luck with set process/dump
%SYSTEM-F-ACCVIO, access violation, reason mask=00, virtual address=0000000000000000, PC=0000000000037FDC, PS=0000001B
but it does not create a dump file
I have two questions:
1- is doing the SET PROCESS/DUMP enough before starting the detached process to capture the dump or I need to do more?
2- normally reason mask has values like 1 ,2 ,4 etc which means something but what reason mask of 00 means? in which situations can we get access violation with no reason mask?
thanks
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тАО03-28-2009 12:14 PM
тАО03-28-2009 12:14 PM
Re: not having luck with set process/dump
$set process/dump
$spawn/nowait/proc=TEST RUN/NODEBUG TEST.EXE
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тАО03-28-2009 12:23 PM
тАО03-28-2009 12:23 PM
Re: not having luck with set process/dump
It means that your big problem is "virtual
address=0000000000000000", often the result
of trying to use a NULL pointer in C.
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тАО03-28-2009 12:26 PM
тАО03-28-2009 12:26 PM
Re: not having luck with set process/dump
1)$spawn/nowait run/nodebug test1.exe
this one i found out i can produce a dump by putting run/dump
2)$spawn/nowait test2
how do i produce a dump for this process?
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тАО03-28-2009 02:41 PM
тАО03-28-2009 02:41 PM
Re: not having luck with set process/dump
http://64.223.189.234/node/803
Here is how to debug an access violation on OpenVMS:
http://64.223.189.234/node/800
And if you'd like to know what the meanings of the various bits within the reason (bit) mask mean when the individual bits are set or when they are clear, then take the time to read the available documentation:
$ help /message/facility=system accvio
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тАО04-01-2009 03:12 AM
тАО04-01-2009 03:12 AM
Re: not having luck with set process/dump
a reason mask of 00 indicates a 'faulting data read', i.e. an invalid source address pointing to a non-accessible page.
SPAWN does not pass the image-dump flag to the spawned subprocess, so you need to issue the SET PROC/DUMP command in the context of the subprocess, before running the image.
Volker.