[Info-vax] The PWAIT tool.

Volker Halle volker_halle at hotmail.com
Fri Oct 2 02:17:57 EDT 2009


Jan-Erik,

you should also consider the following.

If a process OWNs a MUTEX, it should be executing at priority 16 (as
seen with SDA> SHOW SUMM in column Pri) and should also have a Mutex
Count > 0 (seen with SDA> SHOW PROC in the Thread index page). PWAIT
$SDA is supposed to try and find that information for you !

If you can't find such a process in your system, it is even less
likely, that this is a real MUTEX wait situation, also considering the
fact, that the data present at that 'MUTEX' address does NOT look like
a MUTEX !

If you are interested in helping Ian or me to increase the usefulness
of PWAIT$SDA, consider to force a crash and make the dump available
for analysis.

Volker.



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