kern/114155: sigsuspend gets interrupted by ptrace

Michiel Boland michiel at
Sat Jun 30 13:20:02 UTC 2007

>Number:         114155
>Category:       kern
>Synopsis:       sigsuspend gets interrupted by ptrace
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Jun 30 13:20:01 GMT 2007
>Originator:     Michiel Boland
>Release:        FreeBSD 7.0-CURRENT amd64
FreeBSD 7.0-CURRENT FreeBSD 7.0-CURRENT #1: Fri Jun 29 02:55:35 CEST 2007     root at  amd64
The sigsuspend() system call gets interrupted when
another process attaches itself via ptrace.


int main(void)
        return 0;
$ ./a.out &
$ truss -p `pgrep a.out`
process exit, rval = 0  
[1]   Done                    ./a.out



More information about the freebsd-bugs mailing list