On Sat, 10 Oct 2009 18:24:21 +0200, Oleg Nesterov wrote:
> On 10/06, Jan Kratochvil wrote:
> >
> > Yes, I agree with the current general behavior of ptrace there is missing:
> > if (WIFSTOPPED (status) && WSTOPSIG (status) == SIGPIPE)
> >
> > [...snip...]
> >
> > --- attach-into-signal.c 31 Jan 2009 21:11:40 -0000 1.5
> > +++ attach-into-signal.c 6 Oct 2009 14:27:08 -0000
> > @@ -224,6 +224,18 @@ static void reproduce (void)
> > child = 0;
> > return;
> > }
> > + /* SIGPIPE was still pending and it has not been yet delivered. */
> > + if (WIFSTOPPED (status) && WSTOPSIG (status) == SIGPIPE)
> > + {
> > + /* Deliver it and get the queued SIGSTOP. */
> > + errno = 0;
> > + ptrace (PTRACE_CONT, child, (void *) 1, (void *) SIGPIPE);
> > + assert_perror (errno);
> > +
> > + errno = 0;
> > + pid = waitpid (child, &status, 0);
> > + assert (pid == child);
> > + }
> > assert (WIFSTOPPED (status));
> > assert (WSTOPSIG (status) == SIGSTOP);
> > /* let tracee run. it must be killed very soon by SIGPIPE */
>
> Jan, please revert this change.
Reverted (VERBOSE-caught with FAIL now).
Jan
