Hello!
I'm working on a problem and I don't know how to find out more about it!
I'm having an application that is hanging at a certain point on my production system and in
As far as I can tell, this "event on which the process waits" (from the top
Can anyone offer any advice? I've tried a few base dtrace one-liners and dwatch commands from this page, but I haven't been successful in finding any more useful information on the issue. I'd ideally like to be able to identify the reason why the process doesn't die.
Thanks!
I'm working on a problem and I don't know how to find out more about it!
I'm having an application that is hanging at a certain point on my production system and in
top
it is listed as usem (screenshot attached). If it is helpful, the processing that is hanging is part of a multiprocessing script. In terms of system, I'm on 12.0-RELEASE-p3.As far as I can tell, this "event on which the process waits" (from the top
man
page), usem stands for "unlink semaphore", but I can't really find out anything more about the event itself and why it is happening. Can anyone offer any advice? I've tried a few base dtrace one-liners and dwatch commands from this page, but I haven't been successful in finding any more useful information on the issue. I'd ideally like to be able to identify the reason why the process doesn't die.
Thanks!