Date: Sun, 13 Feb 2000 00:13:25 +0000 From: Ben Smithurst <ben@scientia.demon.co.uk> To: Ryan Thompson <freebsd@sasknow.com> Cc: Mike Tancsa <mike@sentex.ca>, questions@FreeBSD.ORG Subject: Re: unkillable process Message-ID: <20000213001325.A16083@strontium.scientia.demon.co.uk> In-Reply-To: <Pine.BSF.4.10.10002121715590.39269-100000@sasknow.com> References: <3.0.5.32.20000212165400.013e3770@marble.sentex.ca> <Pine.BSF.4.10.10002121715590.39269-100000@sasknow.com>
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Ryan Thompson wrote:
> Generally, if it is the parent of another process, that process must
> exit first before the parent can die.
uh... I think you are wrong, unless I am misunderstanding you in some
really stupid way.
ben@magnesium:~/tmp$ cat t.c
#include <unistd.h>
int
main(void) {
fork();
sleep(60);
return (0);
}
ben@magnesium:~/tmp$ cc -Wall t.c
ben@magnesium:~/tmp$ ./a.out &
[1] 32191
ben@magnesium:~/tmp$ ps j
USER PID PPID PGID SESS JOBC STAT TT TIME COMMAND
ben 30161 30158 30161 16e6680 0 Is+ p0 0:00.41 -zsh (zsh)
ben 30169 30160 30169 1690240 0 Ss p1 0:00.12 -zsh (zsh)
ben 32191 30169 32191 1690240 1 SN p1 0:00.01 ./a.out
ben 32192 32191 32191 1690240 1 SN p1 0:00.00 ./a.out
ben 32193 30169 32193 1690240 1 R+ p1 0:00.00 ps -j
ben@magnesium:~/tmp$ kill 32191
[1] + terminated ./a.out
ben@magnesium:~/tmp$ ps j
USER PID PPID PGID SESS JOBC STAT TT TIME COMMAND
ben 30161 30158 30161 16e6680 0 Is+ p0 0:00.41 -zsh (zsh)
ben 30169 30160 30169 1690240 0 Ss p1 0:00.13 -zsh (zsh)
ben 32192 1 32191 1690240 0 SN p1 0:00.00 ./a.out
ben 32194 30169 32194 1690240 1 R+ p1 0:00.00 ps -j
--
Ben Smithurst / ben@scientia.demon.co.uk / PGP: 0x99392F7D
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