>Number: 178396
>Category: kern
>Synopsis: Add jid to kernel log when a process has been forced closed
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: update
>Submitter-Id: current-users
>Arrival-Date: Tue May 07 14:10:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator: Clement Moulin
>Release: 9.0
>Organization:
SimpleRezo
>Environment:
FreeBSD XXX.simplerezo.com 9.0-RELEASE-p4 FreeBSD 9.0-RELEASE-p4 #0: Thu Aug 16
12:10:44 CEST 2012
[email protected]:/usr/obj/storage/freebsd/src/sys/KERNEL amd64
>Description:
When process is forced killed, kernel log "process %pid (%processname), uid
%uid: exited on signal %sid".
In a system hosting jails, this message, since it is produced by kernel, is
logged on the host.
I'm suggesting to also log JID for "debugging" purpose: in my case, i have
several jails, each with an apache process, and without JID information, i'm
not able to find which one is causing "httpd: exiting on signal 10", without
reading every apache error logs of each jail...
>How-To-Repeat:
>Fix:
See proposal patch in attachment.
Patch attached with submission follows:
--- kern_sig.c.orig 2013-05-07 11:11:44.000000000 +0200
+++ kern_sig.c 2013-05-07 11:33:52.000000000 +0200
@@ -2869,12 +2869,21 @@
if (coredump(td) == 0)
sig |= WCOREFLAG;
if (kern_logsigexit)
- log(LOG_INFO,
- "pid %d (%s), uid %d: exited on signal %d%s\n",
- p->p_pid, p->p_comm,
- td->td_ucred ? td->td_ucred->cr_uid : -1,
- sig &~ WCOREFLAG,
- sig & WCOREFLAG ? " (core dumped)" : "");
+ if (p->p_flag & P_JAILED)
+ log(LOG_INFO,
+ "pid %d (%s), uid %d, jid %d: exited on
signal %d%s\n",
+ p->p_pid, p->p_comm,
+ td->td_ucred ? td->td_ucred->cr_uid : -1,
+ p->p_ucred ? p->p_ucred->cr_prison->pr_id :
-1,
+ sig &~ WCOREFLAG,
+ sig & WCOREFLAG ? " (core dumped)" : "");
+ else
+ log(LOG_INFO,
+ "pid %d (%s), uid %d: exited on signal
%d%s\n",
+ p->p_pid, p->p_comm,
+ td->td_ucred ? td->td_ucred->cr_uid : -1,
+ sig &~ WCOREFLAG,
+ sig & WCOREFLAG ? " (core dumped)" : "");
} else
PROC_UNLOCK(p);
exit1(td, W_EXITCODE(0, sig));
>Release-Note:
>Audit-Trail:
>Unformatted:
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