Date: Sun, 14 Apr 2002 04:54:12 -0700 (PDT) From: Christian Laursen <xi@borderworlds.dk> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/37057: Problem with rlimits on filesystem mounted from /dev/vn0c Message-ID: <200204141154.g3EBsCk60135@freefall.freebsd.org>
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>Number: 37057
>Category: kern
>Synopsis: Problem with rlimits on filesystem mounted from /dev/vn0c
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Apr 14 05:00:02 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Christian Laursen
>Release: 4.5-STABLE
>Organization:
The Border Worlds
>Environment:
FreeBSD ferengi.borderworlds.dk 4.5-STABLE FreeBSD 4.5-STABLE #5: Sat Apr 13 23:25:44 CEST 2002 root@ferengi.borderworlds.dk:/usr/obj/usr/src/sys/FERENGI i386
>Description:
When setting a soft limit on the filesize, any writes to a file seems to result in a SIGXFSZ being delivered, when the filesystem is mounted from a vn device. (This prevents postfix to work)
>How-To-Repeat:
This C program will trigger the bug:
==============8<====================
#include <sys/time.h>
#include <sys/resource.h>
#include <unistd.h>
#include <stdio.h>
int main () {
struct rlimit rlim;
FILE *file;
getrlimit (RLIMIT_FSIZE, &rlim);
rlim.rlim_cur = 15;
setrlimit (RLIMIT_FSIZE, &rlim);
if ((file = fopen("testfile", "w")) == NULL) {
perror("fopen");
exit(1);
}
fputs ("Some text", file);
fclose (file);
return 0;
}
==============8<====================
Samle output:
ferengi# cd /tmp/
ferengi# ./limit
ferengi# cd /mnt/
ferengi# df .
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/vn0c 4870 4 4478 0% /mnt
ferengi# /tmp/limit
Filesize limit exceeded
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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