[libc-alpha] mt-application hanging in exit()

[Jakub Jelinek]

On Sat, Jan 19, 2002 at 08:56:00PM +0100, Andreas Schwab wrote:
> Bertold Kolics <Bertold.Kolics@Sun.COM> writes:
> 
> |> Hallo Andreas,
> |> 
> |> >> Then we must have a problem. I can reproduce it each & every time. I have run
> |> >> my app under strace using microsec timestamping, and I could see the restart
> |> >> signal arriving before the signal mask modification is done inside suspend().
> |> >
> |> >Please send a *small* program that shows the problem,
> |> 
> |> I may have found the problem, but I still believe that there is a problem in glibc.
> |> 
> |> Before setting up the signal handlers, I used to clear the signal mask of the process.
> 
> You must not call sigprocmask in a multi-threaded process.  Use
> pthread_sigmask instead.

Also, doshutdown should be volatile if you check for it using
while (!doshutdown);
(well, much better would be to use some CPU friendly way, like conditional
variable or something).

	Jakub