[6484] in Athena Bugs
vax 7.1H: /bin/tcsh
daemon@ATHENA.MIT.EDU (daemon@ATHENA.MIT.EDU)
Wed Nov 28 16:37:44 1990
Date: Wed, 28 Nov 90 16:37:20 -0500
From: John T Kohl <jtkohl@ATHENA.MIT.EDU>
To: bugs@ATHENA.MIT.EDU
System name: lycus
Type and version: CVAXSTAR 7.1H
Display type: SM
What were you trying to do?
Find out where some extra open file descriptors came from.
What's wrong:
In some cases, the shell doesn't properly close fds #17,18,19.
This program (foo):
main()
{
printf("pid=%d\n",getpid());
while(1)
sigpause(0);
}
combined with 'ofiles' (from watchmaker bin) shows the leak.
- ---------- window #1: ---------
[{1}lycus:/tmp]
% cc -c foo.c
cc -o foo foo.o
[{1}lycus:/tmp]
% cc -o foo foo.o
[{1}lycus:/tmp]
% ./foo
pid=17917
^C[{1}lycus:/tmp]
% (./foo&)
[{1}lycus:/tmp]
% pid=17921
[{1}lycus:/tmp]
% kill 17921
[{1}lycus:/tmp]
% where ofiles
/mit/watchmaker/vaxbin/ofiles
[{1}lycus:/tmp]
%
- ------------- window #2: -------------
% ofiles 17917
user process command
jtkohl 17917 foo
text = file inode 917 on local fs 151e (/site)
cwd = directory inode 896 on local fs 151e (/site)
fd #0 = character special device /dev/ttyp2
fd #1 = character special device /dev/ttyp2
fd #2 = character special device /dev/ttyp2
Exit 1 ofiles 17917
[{1}lycus:~]
% ofiles 17921
user process command
jtkohl 17921 foo
text = file inode 917 on local fs 151e (/site)
cwd = directory inode 896 on local fs 151e (/site)
fd #0 = character special device /dev/ttyp2
fd #1 = character special device /dev/ttyp2
fd #2 = character special device /dev/ttyp2
fd #17 = character special device /dev/ttyp2
fd #18 = character special device /dev/ttyp2
fd #19 = character special device /dev/ttyp2
Exit 1 ofiles 17921
[{1}lycus:~]
%
What should have happened:
The shell should clean up on things like (foo&)
Please describe any relevant documentation references:
csh(1), close(2)
