Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932863Ab1EJP4B (ORCPT ); Tue, 10 May 2011 11:56:01 -0400 Received: from mail-wy0-f174.google.com ([74.125.82.174]:35287 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932827Ab1EJP4A (ORCPT ); Tue, 10 May 2011 11:56:00 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=aRadtZrXP6uosqxt3kmoldELsdCUtvOSy7i02H2FRn6JqQePHnAurqFAhW50Ym+9mp 63Vr5rBB9LkPpCu6L89i323VBs1q+ZeuQ1nPP2RkKByQfjTyfQPs30+ieIuMcBSEwRWo cDvFJ0Y2brdHquceoEafG8NqRCStrvh9vwj0s= MIME-Version: 1.0 In-Reply-To: References: Date: Tue, 10 May 2011 17:55:58 +0200 Message-ID: Subject: Re: Kernel 2.6.38.6 page allocation failure (ixgbe) From: Stefan Majer To: Yehuda Sadeh Weinraub Cc: linux-net@vger.kernel.org, linux-kernel@vger.kernel.org, ceph-devel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1614 Lines: 50 Hi, On Tue, May 10, 2011 at 4:20 PM, Yehuda Sadeh Weinraub wrote: > On Tue, May 10, 2011 at 7:04 AM, Stefan Majer wrote: >> Hi, >> >> im running 4 nodes with ceph on top of btrfs with a dualport Intel >> X520 10Gb Ethernet Card with the latest 3.3.9 ixgbe driver. >> during benchmarks i get the following stack. >> I can easily reproduce this by simply running rados bench from a fast >> machine using this 4 nodes as ceph cluster. >> We saw this with stock ixgbe driver from 2.6.38.6 and with the latest >> 3.3.9 ixgbe. >> This kernel is tainted because we use fusion-io iodrives as journal >> devices for btrfs. >> >> Any hints to nail this down are welcome. >> >> Greetings Stefan Majer >> >> May 10 15:26:40 os02 kernel: [ 3652.485219] cosd: page allocation >> failure. order:2, mode:0x4020 > > It looks like the machine running the cosd is crashing, is that the case? No the machine is still running. Even the cosd is still there. > Are you running both ceph kernel module on the same machine by any > chance? If not, it can be some other fs bug (e.g., the underlying > btrfs). Also, the stack here is quite deep, there's a chance for a > stack overflow. There is only the cosd running on these machines. We have 3 seperate mons and clients which uses qemu-rbd. > Thanks, > Yehuda > Greetings -- Stefan Majer -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/