Date: Tue, 2 Nov 1999 02:34:14 -0800 (PST) From: Higashi.Hiroyuki@ss.anritsu.co.jp To: freebsd-gnats-submit@freebsd.org Subject: kern/14660: limit coredumpsize 0, but dumps Zero Size Core File Message-ID: <19991102103414.13E6414FBC@hub.freebsd.org>
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>Number: 14660
>Category: kern
>Synopsis: limit coredumpsize 0, but dumps Zero Size Core File
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Nov 2 02:40:00 PST 1999
>Closed-Date:
>Last-Modified:
>Originator: HIGASHI Hiroyuki
>Release: FreeBSD-3.3R i386
>Organization:
ANRITSU CORPORATION
>Environment:
3.3-RELEASE FreeBSD 3.3-RELEASE
>Description:
I set "limit coredumpsize 0".
But kernel dumps "Zero Size Core File".
>How-To-Repeat:
Test Program source is below.(This file name is "foo.c".)
-----
main(void)
{
int a;
a = 1/0;
}
-----
Compile this source program.
And execute it.
-----
% limit coredumpsize 0
% cc foo.c
% a.out
Floating point exception
% ls -l a.out*
-rwxrwxr-x 1 higashi TR 3093 Nov 2 19:13 a.out
-rw------- 1 higashi TR 0 Nov 2 19:13 a.out.core
-----
Other version of FreeBSD DOSE NOT DUMP core file.
>Fix:
at kern_sig.c of coredump()
before call "p->p_sysent->sv_coredump(p, vp, limit)"
check "limit" size
Ex.
-----
1393 error = (limit & p->p_sysent->sv_coredump) ?
1394 p->p_sysent->sv_coredump(p, vp, limit) :
1395 ENOSYS;
-----
>Release-Note:
>Audit-Trail:
>Unformatted:
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