Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!think!mintaka!mit-eddie!bu.edu!bu-pub!jdh
From: jdh@bu-pub.bu.edu (Jason Heirtzler)
Newsgroups: comp.unix.wizards
Subject: tcsh bug in sunos 4
Message-ID: <53442@bu.edu.bu.edu>
Date: 7 Mar 90 01:17:48 GMT
Sender: news@bu.edu.bu.edu
Reply-To: jdh@bu-pub.bu.edu (Jason Heirtzler)
Organization: Boston University Distributed Systems Group
Lines: 22

There's a particularly annoying tcsh bug (race condition?) that
appeared in SunOS 4, where pipelined jobs randomly hang

        % strings undump | more
        strings undump | more

        Stopped (tty output)
        [4] 24416 24417

It has been suggested that compiling with -Dvfork=fork makes the
problem less common, but doesn't fix the real problem.

As since this code is doubtlessly really nasty, I don't relish the
task facing me.  So, Has anyone already fixed it?


-------------------------------------------------------------------------
Jason Heirtzler           (617) 353-2780       jdh@bu-pub.bu.edu
Information Technology    Boston University    ..!harvard!bu.edu!bu-pub!jdh
-------------------------------------------------------------------------
Jason Heirtzler           (617) 353-2780       jdh@bu-pub.bu.edu
Information Technology    Boston University    ..!harvard!bu.edu!bu-pub!jdh