From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with SMTP id BDFA49000BD for ; Thu, 22 Sep 2011 17:24:35 -0400 (EDT) Date: Thu, 22 Sep 2011 17:24:32 -0400 From: Dave Jones Subject: Re: kernel crash Message-ID: <20110922212432.GB25623@redhat.com> References: <1316717125.61795.YahooMailClassic@web162017.mail.bf1.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1316717125.61795.YahooMailClassic@web162017.mail.bf1.yahoo.com> Sender: owner-linux-mm@kvack.org List-ID: To: M Cc: linux-mm@kvack.org On Thu, Sep 22, 2011 at 11:45:25AM -0700, M wrote: > Hi, > > I am running Fedora 15 644bit on AMD 64bit arch. After update 3 days ago, kernel started to crash when I submit a heavy computation job. It happened today also with similar type of job. > > I submitted a bug report to https://bugzilla.redhat.com/ d=740613 . They referred me to contact linux memory management group. I have also uploaded my log file in the bug report. I will be very happy to provide more information if required to resolve this issue. > > Thanks. (fixed url is https://bugzilla.redhat.com/show_bug.cgi?id=740613) Manoj's report here has a system with 32GB of RAM and 40GB of swap oomkill'ing processes when there seems to be ram still available. I note the gfp mask of the failing allocations has GFP_HIGHMEM, and this apparently doesn't happen when he runs 32-bit. Could that be a clue ? Dave -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org