On Tue, Aug 13, 2002 at 11:54:06PM -0700, Terry Lambert wrote:
> Tim Robbins wrote:
> > On Tue, Aug 13, 2002 at 05:04:20PM -0700, Terry Lambert wrote:
> > > Both different reports have been from Tim Robbins. It may
> > > be that he has a local problem, and that his local problem
> > > is greatly confusing this discussion.
> >
> > Unfortunately, this is not a local problem -- I can reproduce it locally
> > (i386, world/kernel from yesterday), on panther.freebsd.org (sparc64, kernel
> > built July 19), and beast.freebsd.org (alpha, also built July 19). I cannot
> > reproduce it on ref5 (i386, built July 1).
>
> If you update to the very most recent current, do the problems
> occur? It's currently August 13th, which means that you are a
> month behind on the machines with the problem, and a month and
> a half behind on the other.
The kernel/world I am running locally is less than 24 hours old.
>
> If both problems still occur with the most recent current, do
> they go away if you back out *just* the PAM changes?
This has nothing to do with PAM. Here is a simple program which behaves
differently between 4.6-RELEASE and 5.0-CURRENT. I don't know which
of the two behaviours is correct.
#include <sys/types.h>
#include <sys/wait.h>
#include <err.h>
#include <stdio.h>
#include <signal.h>
#include <string.h>
#include <unistd.h>
int
main(int argc, char *argv[])
{
pid_t pid;
int status;
switch (pid = vfork()) {
case -1:
err(1, "fork");
case 0:
execl("/bin/csh", "csh", NULL);
err(1, "csh");
default:
fprintf(stderr, "(waiter) waiting\n");
while (waitpid(pid, &status, WUNTRACED) != -1 && WIFSTOPPED(status)) {
fprintf(stderr, "(waiter) stopping ourself\n");
killpg(0, SIGSTOP);
fprintf(stderr, "(waiter) continuing child\n");
killpg(pid, SIGCONT);
fprintf(stderr, "(waiter) waiting\n");
}
}
return (0);
}
%%
4.6.1-RELEASE-p10, OpenBSD 3.0:
%set prompt="root% "
root% ./waiter
(waiter) waiting
%suspend
Suspended
root% fg
./waiter
%
5.0-CURRENT built August 14 (today):
%set prompt="root% "
root% ./waiter
(waiter) waiting
%suspend
Suspended
root% fg
./waiter
%(waiter) stopping ourself
Suspended (signal)
root%
Linux behaves differently to both, but the change in behaviour does not
seem to make it stop working.
Tim
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