Bug 14660

Summary: limit coredumpsize 0, but dumps Zero Size Core File
Product: Base System Reporter: Higashi.Hiroyuki <Higashi.Hiroyuki>
Component: kernAssignee: freebsd-bugs (Nobody) <bugs>
Status: Closed FIXED    
Severity: Affects Only Me    
Priority: Normal    
Version: Unspecified   
Hardware: Any   
OS: Any   

Description Higashi.Hiroyuki 1999-11-02 10:40:00 UTC
I set "limit coredumpsize 0".
But kernel dumps "Zero Size 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;
-----
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.
Comment 1 Sheldon Hearn freebsd_committer freebsd_triage 1999-11-02 10:48:28 UTC
State Changed
From-To: open->closed

Duplicate of PR 14540.