linux-kernel - Re: 2.6.22-stable causes oomkiller to be invoked

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Message-ID: <20071228101109.GB5083@linux.vnet.ibm.com>
Date:	Fri, 28 Dec 2007 15:41:09 +0530
From:	Dhaval Giani <dhaval@...ux.vnet.ibm.com>
To:	Christoph Lameter <clameter@....com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, htejun@...il.com,
	gregkh@...e.de, Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	Balbir Singh <balbir@...ibm.com>, maneesh@...ux.vnet.ibm.com,
	lkml <linux-kernel@...r.kernel.org>, stable@...nel.org,
	linux-mm@...ck.org
Subject: Re: 2.6.22-stable causes oomkiller to be invoked

On Thu, Dec 27, 2007 at 11:22:34AM -0800, Christoph Lameter wrote:
> On Thu, 27 Dec 2007, Dhaval Giani wrote:
> 
> > anything specific you are looking for? I still hit the oom.
> 
> Weird.... WTH is this? You run an unmodified upstream tree? Can you add a 
> printk in quicklist_trim that shows
> 

Hi,

I am running 2.6.24-rc5-mm1 here.

> A) that it is called
> 
> B) what the control values q->nr_pages and min_pages are?
> 

Trying to print these using printks renders the system unbootable. With
help from RAS folks around me, managed to get a systemtap script, 

probe kernel.statement("quicklist_trim@...quicklist.c:56")
{
        printf(" q->nr_pages is %d, min_pages is %d ----> %s\n",
$q->nr_pages, $$
min_pages, execname());
}

we managed to get your required information. Last 10,000 lines are
attached (The uncompressed file comes to 500 kb).

Hope it helps.

Thanks,
-- 
regards,
Dhaval

Download attachment "systp.out.1.bz2" of type "application/x-bzip2" (7600 bytes)