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* [Bug nptl/4939] New: setpgid fails from a thread other than main
@ 2007-08-19 15:01 qrczak at knm dot org dot pl
2007-08-22 7:38 ` [Bug nptl/4939] " drepper at redhat dot com
0 siblings, 1 reply; 2+ messages in thread
From: qrczak at knm dot org dot pl @ 2007-08-19 15:01 UTC (permalink / raw)
To: glibc-bugs
I see no reason why the following call to setpgid would fail:
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>
#include <stdio.h>
void *thread_body(void *arg) {
pid_t pid;
int status;
(void)arg;
pid = fork();
if (pid == 0) {
sleep(1);
exit(0);
}
if (setpgid(pid, 0) == -1)
perror("setpgid");
else
printf("ok\n");
return NULL;
}
int main(void) {
pthread_t th;
printf("From the main thread\n");
thread_body(NULL);
printf("From another thread\n");
pthread_create(&th, NULL, thread_body, NULL);
pthread_join(th, NULL);
return 0;
}
Actual result:
>From the main thread
ok
>From another thread
setpgid: No such process
Expected result:
>From the main thread
ok
>From another thread
ok
--
Summary: setpgid fails from a thread other than main
Product: glibc
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: nptl
AssignedTo: drepper at redhat dot com
ReportedBy: qrczak at knm dot org dot pl
CC: glibc-bugs at sources dot redhat dot com
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://sourceware.org/bugzilla/show_bug.cgi?id=4939
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* [Bug nptl/4939] setpgid fails from a thread other than main
2007-08-19 15:01 [Bug nptl/4939] New: setpgid fails from a thread other than main qrczak at knm dot org dot pl
@ 2007-08-22 7:38 ` drepper at redhat dot com
0 siblings, 0 replies; 2+ messages in thread
From: drepper at redhat dot com @ 2007-08-22 7:38 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From drepper at redhat dot com 2007-08-22 07:38 -------
That's a kernel issue. setpgid in libc is nothing but a wrapper around the syscall.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |WONTFIX
http://sourceware.org/bugzilla/show_bug.cgi?id=4939
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end of thread, other threads:[~2007-08-22 7:38 UTC | newest]
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2007-08-19 15:01 [Bug nptl/4939] New: setpgid fails from a thread other than main qrczak at knm dot org dot pl
2007-08-22 7:38 ` [Bug nptl/4939] " drepper at redhat dot com
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