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Date: Sat, 30 Jun 2007 16:30:46 +0200 (MEST)
From: Michiel Boland <michiel@boland.org>
To: freebsd-current@freebsd.org
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Subject: sigsuspend gets interrupted by ptrace
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Consider this simple program:

#include <unistd.h>

int main(void)
{
          pause();
          return 0;
}

$ ./a.out &
$ truss -p `pgrep a.out`
process exit, rval = 0
[1]   Done                    ./a.out
$

Surely this must be wrong. The program should have just continued running after 
truss was attached to it.

(PR Filed under kern/114155)

Cheers
Michiel