topic Re: lsof core dumps for one specific user in Operating System - HP-UX

lsof core dumps for one specific user

Dave Chamberlin — Mon, 10 Jun 2013 15:51:16 GMT

Greetings,

Running hpux 11.11 64 bit, lsof version is 4.77. I had a problem with user clr with too many open files - used "lsof -u clr" and it did show piles of open files - though these were not specific files - just the directory. Stopped the problem processes and restarted. Now doing "lsof -u clr" causes coredump though "lsof -u oracle10" - or any other user does not. If I run lsof without flags and grep for the directory involved - or clr - the list comes back. Any ideas what this means?

thanks

Re: lsof core dumps for one specific user

Patrick Wallek — Mon, 10 Jun 2013 16:12:36 GMT

Is there anything useful in the core file that is generated?

What does "file core" show?

Re: lsof core dumps for one specific user

Dave Chamberlin — Mon, 10 Jun 2013 22:10:04 GMT

file core just shows - core file from lsof - received SIGSEGV. The command itself shows memory fault - though as I mentioned it works for other users on the system, and works without parameters....

Re: lsof core dumps for one specific user

Dennis Handly — Tue, 11 Jun 2013 03:00:34 GMT

>Any ideas what this means?

Too many files opened for that user?

Using gdb to get a stacktrace from the corefile may be helpful.

Re: lsof core dumps for one specific user

Dave Chamberlin — Wed, 12 Jun 2013 15:15:54 GMT

I do have a workaround - just wondered why the issue. That user initially DID reach its file limit, but lsof worked when that condition was there.