[Info-vax] Need help tracking down a MUTEX state

[Ade]

Hi,

We have a VAX 6000-610 running VMS 6.1. On occasion the system hangs so I've 
had the operators crash the system as per instructions found elsewhere.

The dump of the system seems fine except for one process in MUTEX state 
prio=16, mutex count=0 and PCB$L_EFWM=JIB of this process. On the quota 
front the only 'anomaly' is that the BUFIO byte count/limit is at 192/65216. 
None of the other usual suspect quotas are diminished.

A show proc/chan shows a busy channel to the system disk but no associated 
file id.

Can someone please post a document or pointers so as to how to trace what's 
actually going on?

Thanks,

Ade