From: Larry Woodman <lwoodman@redhat.com>
Date: Wed, 4 Nov 2009 18:38:11 -0500
Subject: [mm] oom killer output should display UID
Message-id: <1257359891.11307.44.camel@dhcp-100-19-198.bos.redhat.com>
Patchwork-id: 21313
O-Subject: Re: [RHEL5.5 PATCH] oom killer output should display UID
Bugzilla: 520419
RH-Acked-by: Dean Nelson <dnelson@redhat.com>
RH-Acked-by: Stefan Assmann <sassmann@redhat.com>

The attached patch includes the UID in the printk that gets
written to the messages file when a process on OOM killed.
This has been requested from multiple customers

-------------------------------------------------------------
#swapoff -a
#suckdownmemory 16000 0

#dmesg

...
1227 pages shared
0 pages swap cached
Out of memory: Killed process 9196, UID 0, (memory).
[root@dhcp-100-19-50 ~]#
...

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index b4643dd..58f8b28 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -278,8 +278,8 @@ static void __oom_kill_task(struct task_struct *p, const char *message)
 	}
 	task_unlock(p);
 	if (message) 
-		printk(KERN_ERR "%s: Killed process %d (%s).\n",
-				message, p->pid, p->comm);
+		printk(KERN_ERR "%s: Killed process %d, UID %d, (%s).\n",
+				message, p->pid, p->uid, p->comm);
 
 	/*
 	 * We give our sacrificial lamb high priority and access to