From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lucidpixels.com ([75.144.35.66]:54961 "EHLO lucidpixels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750960AbZDVWvW (ORCPT ); Wed, 22 Apr 2009 18:51:22 -0400 Date: Wed, 22 Apr 2009 18:51:21 -0400 (EDT) From: Justin Piszcz To: Jesse Brandeburg cc: Aioanei Rares , linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org Subject: Re: 2.6.29.1: Pid: 2831, comm: nfsd Not tainted 2.6.29.1 #4 In-Reply-To: <4807377b0904221541j7e2c4c0bh50d76d494b3cb306@mail.gmail.com> Message-ID: References: <49EE25FB.9050503@gmail.com> <4807377b0904221541j7e2c4c0bh50d76d494b3cb306@mail.gmail.com> Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 On Wed, 22 Apr 2009, Jesse Brandeburg wrote: > On Tue, Apr 21, 2009 at 1:00 PM, Aioanei Rares wrote: >> Justin Piszcz wrote: >>> This has been happening with 2.6.28.(x) and now 2.6.29.(x), can anyone >>> suggest the possible root cause of this problem, re: the nfsd page >>> allocation >>> failures: > >> Yes, it happened to me too on a Debian unstable machine with more than one >> kernel, starting with 2.6.28 until now. I have a feeling it's a >> Debian-specific problem rather than a kernel one. > > you may both want to try > echo 16384 > /proc/sys/vm/min_free_kbytes > > or some other value depending on your amount of ram. This change will > increase the minimum amount of memory available for network memory > allocations, which are called from softirq context to refill the NIC's > receive buffers. > Will give it a shot, the default was already pretty close to the suggestion, 11441, if it recurs, will increase further. Thanks, Justin.