Date: Tue, 4 Jan 2005 13:55:39 GMT From: Roman Nikitchenko <roman@trifle.net> To: freebsd-gnats-submit@FreeBSD.org Subject: threads/75795: applications linked with -lc_r can't close() fd opened by kqueue(). Message-ID: <200501041355.j04DtdPf037598@www.freebsd.org> Resent-Message-ID: <200501041400.j04E0jjp034332@freefall.freebsd.org>
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>Number: 75795
>Category: threads
>Synopsis: applications linked with -lc_r can't close() fd opened by kqueue().
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-threads
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Jan 04 14:00:45 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator: Roman Nikitchenko
>Release: RELENG_5
>Organization:
Trifle Co. Ltd.
>Environment:
FreeBSD hc.apex.dp.ua 5.3-STABLE FreeBSD 5.3-STABLE #0: Fri Dec 24 14:26:40 EET 2004 root@hc.apex.dp.ua:/usr/obj/usr/src/sys/HC i386
>Description:
Any application that uses kqueue() can't close() obtained descriptors if linked with libc_r. It is FREEBSD-5.3 related problem. The errno is set to 6 (device not configured) after close.
Applications which uses signals need to be linked against libc_r as KSE has some problems with signals (kse_thr_interrupt).
>How-To-Repeat:
Do "g++ -lc_r" for source like this:
/* --- begin --- */
#include <sys/time.h>
#include <sys/event.h>
#include <stdio.h>
#include <unistd.h>
int main()
{
int poller = kqueue();
printf( "poller: %d\n", poller );
int r = close( poller );
if ( r<0 ) perror( "kqueue" );
}
/* --- end --- */
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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