Date: Fri, 3 Mar 2000 10:55:22 -0800 (PST) From: freak@fac-simile.com To: freebsd-gnats-submit@FreeBSD.org Subject: kern/17152: kernel panic:aio_write Message-ID: <200003031855.KAA47850@freefall.freebsd.org>
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>Number: 17152
>Category: kern
>Synopsis: kernel panic:aio_write
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Mar 3 11:00:01 PST 2000
>Closed-Date:
>Last-Modified:
>Originator: Patrick Julien
>Release: 3.4-RELEASE
>Organization:
>Environment:
FreeBSD bsd.local.fac-simile.com 3.4-RELEASE FreeBSD 3.4-RELEASE #0: Mon Dec
20 06:54:39 GMT 1999 jkh@time.cdrom.com:/usr/src/sys/compile/GENERIC i386
>Description:
Using aio_write with the rt signal notification crashes the system. 3
different machines have been crashed using this technique. Note that no
signal number is specified for this test.
>How-To-Repeat:
#include <aio.h>
#include <fcntl.h>
#include <signal.h>
#include <string.h>
int main ( void )
{
int f;
struct aiocb io;
char data [ ] = "Donnees a ecrire\n";
f = open ( "allo", O_CREAT | O_TRUNC | O_WRONLY, 00600 );
memset ( &io, 0, sizeof ( struct aiocb ) );
io.aio_nbytes = sizeof ( data );
io.aio_fildes = f;
io.aio_buf = data;
io.aio_sigevent.sigev_notify = SIGEV_SIGNAL;
aio_write ( &io );
sleep ( 1 );
return 0;
}
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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