From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Rankin Subject: RE: [E1000-devel] [e100] Page allocation failure warning(?) in 2.6.36.3 Date: Thu, 13 Jan 2011 01:00:35 -0800 (PST) Message-ID: <895344.13845.qm@web121707.mail.ne1.yahoo.com> References: <1294894536.3335.510.camel@edumazet-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT Cc: JesseBrandeburg , David Miller , "e1000-devel@lists.sourceforge.net" , Tushar NDave , "netdev@vger.kernel.org" , Jeffrey TKirsher To: Eric Dumazet Return-path: Received: from web121707.mail.ne1.yahoo.com ([98.138.90.128]:40388 "HELO web121707.mail.ne1.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S932429Ab1AMJAh convert rfc822-to-8bit (ORCPT ); Thu, 13 Jan 2011 04:00:37 -0500 In-Reply-To: <1294894536.3335.510.camel@edumazet-laptop> Sender: netdev-owner@vger.kernel.org List-ID: --- On Thu, 13/1/11, Eric Dumazet wrote: > Problem is e100 allocates an order-6 page in DMA zone > (a 256 KB contigous area of ram) > > This contigous area of ram is not available but just after > booting... I suspected as much. Fortunately, this machine has no function apart from routing and can happily left untouched for extended periods of time. > On such small router, I doubt you need more than 64 slots > in TX ring buffer. But what would the effect of that change be to the interfaces' performance, please? Cheers, Chris