xterm exiting on SIGPIPE.

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Article #38032

#38032

From: Christos S. Zoulas
Date: Tue, 13 Mar 1990 20:50

25 lines
1646 bytes

Hi,

Occasionally when exiting X-windows, some of the xterms seem to die
before they have a chance to clear utmp, and chown/chmod the pty/tty
pairs they are using. Apparently suntools does not like this situation
very much, i.e. not owned by root and with mode 640. 
[Actually any cmdtool finding such a pty will get stuck consuming lots
 of cpu cycles]

This happens when the X-server dies before the xterm does. Then, if
the xterm tries to write to the output file descriptor, a SIGPIPE is
generated and xterm exits before it has a chance to clean up.

The solution is to add a line signal(SIGPIPE, SIG_IGN) in main.c.
This fixes the problem on our sun3's running SUNOS4.0.1 and on our
rt's running the December release of AOS4.3

christos


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From: christos@batcomputer.tn.cornell.edu (Christos S. Zoulas)
Newsgroups: comp.windows.x
Subject: xterm exiting on SIGPIPE.
Keywords: xterm, SIGPIPE
Message-ID: <9904@batcomputer.tn.cornell.edu>
Date: 13 Mar 90 20:50:53 GMT
Reply-To: christos@tcgould.tn.cornell.edu (Christos S. Zoulas)
Organization: Electrical Engineering, Cornell University, Ithaca NY
Lines: 25