Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755472Ab0A2NiU (ORCPT ); Fri, 29 Jan 2010 08:38:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755158Ab0A2NiT (ORCPT ); Fri, 29 Jan 2010 08:38:19 -0500 Received: from zeniv.linux.org.uk ([195.92.253.2]:42945 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754885Ab0A2NiS (ORCPT ); Fri, 29 Jan 2010 08:38:18 -0500 Date: Fri, 29 Jan 2010 13:38:16 +0000 From: Al Viro To: Am??rico Wang Cc: Toralf F??rster , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org Subject: Re: kernel error : 'find /proc/ -type f | xargs -n 1 head -c 10 >/dev/null' Message-ID: <20100129133816.GQ19799@ZenIV.linux.org.uk> References: <201001212017.00160.toralf.foerster@gmx.de> <2375c9f91001272051x3d2e89r24133c42f52082ea@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2375c9f91001272051x3d2e89r24133c42f52082ea@mail.gmail.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 839 Lines: 19 On Thu, Jan 28, 2010 at 12:51:02PM +0800, Am??rico Wang wrote: > 2010/1/22 Toralf F??rster : > > I was inspired by http://article.gmane.org/gmane.linux.kernel/941115 . > > > > Running the command (se subject) as a normal user at a 2.6.32.4 kernel > > gives this in /var/log/messages: > > > > 2010-01-21T20:11:39.171+01:00 n22 kernel: head: page allocation failure. order:9, mode:0xd0 > > > Hmm, it is suspecious that we need 2^9 pages for seq_file... Something's using single_open() and obscene amounts of output; should switch to real iterator... Which file it is? -- 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/