Very Computer

Hello

I have a wierd problem which has just started happening on my solaris
2.5 box.

If I am in c shell (csh), every time it executes a program, the
shell hangs after the program has finished. This applies to csh scripts
as well as interactive use. It responds fine to builtin commands but
if I do, say, "ls", the output from ls comes out on the screen fine and
I can see that the ls process has exited, but the shell never comes back
with a prompt.

I have done on a truss on the csh and it is sleeping in a sigsuspend
call.

I have tried getting rid of all environment variables before invoking
the csh but this doesn't help.

The box is running fine apart from that; all other shells work OK; and
the csh binary itself looks OK so I am really stuck.

Something else strange that started happning around the same time is if
you
telnet onto the box and log in as any user, you get a '#' prompt,
whereas if you are already logged in then you do 'exec login' and login
you get the correct prompt (%). All the users have ksh as their login
shell so I don't know if this can be related to the csh problem.

I have no idea what caused it to get into this state - we don't use csh
much apart from a few old scripts. The only thing I can think of that's
happened recently is we have installed samba, but I would guess that's
a red herring.

grateful for any ideas or suggestions from any remaining c shell users
out there

--- Tim Robinson

Sent via Deja.com http://www.deja.com/
Before you buy.

I don't know about the other things, but this is suggestive of someone
killing and restarting inetd instead of just sending a HUP.

inetd then enherits their environment and passes it on to children (like
telnetd).  That might include the USER variable.  If you set a prompt
based on that it would be wrong.

1) check if this is right.  '/usr/ucb/ps -eww  <PID>' and give it the
inetd pid.  Normal won't have USER or anything other than Locale, Path,
and TZ set.

2) Don't kill inetd.  Just HUP it.  

3) To fix it this time, you might try to use env -i combined with just a
few environments and relaunch it.

Good luck.
--

Unix System Administrator                    Taos - The SysAdmin Company
Got some Dr Pepper?                               San Francisco Bay Area
      < Please move on, ...nothing to see here,  please disperse >

Darren,

spot on - I stopped and restarted the inetd with minimal environment
and it cured the problem

--- Tim

Quote:> Unix System Administrator                    Taos - The SysAdmin
Company
> Got some Dr Pepper?                               San Francisco Bay
Area
>       < Please move on, ...nothing to see here,  please disperse >

Sent via Deja.com http://www.deja.com/
Before you buy.

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   >shell:90081 Hello
   >I have a wierd problem which has just started happening on my
   >solaris 2.5 box.
   >If I am in c shell (csh), every time it executes a program, the
   >shell hangs after the program has finished. This applies to csh
   >scripts as well as interactive use. It responds fine to builtin
What is in your .cshrc?

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