powerpc/183040: Nested signal handling is broken

[Julio Merino]

On Thu, Oct 17, 2013 at 3:31 AM, Konstantin Belousov
<kostikbel at gmail.com> wrote:
> What you could do, is to localize the point where the breakage occur.
> Add a function like this:
>
> static void
> print_sig_disposition(int signo)
> {
>         struct sigaction sa;
>         sigaction(signo, NULL, &sa);
>         printf("sig %d handler %p\n", signo, sa.sa_handler);
> }
>
> and sprinkle a calls to it often enough, to see where the reset of the
> disposition happens.  Insert the call to the function into the signal
> handler as well.

As far as I can tell, the sa_handler remains set all the time. It's
correct before the call to kill().

-- 
Julio Merino / @jmmv