dtrace discuss - Jul 2008 - hangs when doing open /pro/pid/psinfo

I got a system that is hung, unable to do most unix commands like ps/who etc...

I did:
dtrace -c /usr/bin/ps -n ''pid$target::open*:entry {printf("%s
%s",execname,copyinstr(arg0)); }''

and it hangs here:

  7  65277                       open:entry ps /proc/19729/psinfo
  7  65277                       open:entry ps /proc/11687/psinfo
^C

So, I tried to kill -9 11687, but that returns with nothing. If I do "ls
/proc", I still see it.
I am unable to cd into /proc/11687/psinfo either.

Anything else I can do other than reboot?


--
This message posted from opensolaris.org

I''ve seen this when NFS servers are down. If you end up rebooting, do a
reboot -d to capture a crash dump for analysis.

Adam

On Fri, Jul 11, 2008 at 11:29:55AM -0700, Anil Jangity
wrote:
> I got a system that is hung, unable to do most unix commands like ps/who
etc...
> 
> I did:
> dtrace -c /usr/bin/ps -n ''pid$target::open*:entry {printf("%s
%s",execname,copyinstr(arg0)); }''
> 
> and it hangs here:
> 
>   7  65277                       open:entry ps /proc/19729/psinfo
>   7  65277                       open:entry ps /proc/11687/psinfo
> ^C
> 
> So, I tried to kill -9 11687, but that returns with nothing. If I do
"ls /proc", I still see it.
> I am unable to cd into /proc/11687/psinfo either.
> 
> Anything else I can do other than reboot?
> 
> 
> --
> This message posted from opensolaris.org
> _______________________________________________
> dtrace-discuss mailing list
> dtrace-discuss at opensolaris.org
-- 
Adam Leventhal, Fishworks                     http://blogs.sun.com/ahl