From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751908AbXAVPNz (ORCPT ); Mon, 22 Jan 2007 10:13:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751915AbXAVPNz (ORCPT ); Mon, 22 Jan 2007 10:13:55 -0500 Received: from sitar.i-cable.com ([203.83.115.100]:65238 "HELO sitar.i-cable.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751906AbXAVPNy (ORCPT ); Mon, 22 Jan 2007 10:13:54 -0500 Message-ID: <00ad01c73e37$e60c2ef0$28df0f3d@kylecea1512a3f> From: "kyle" To: "Steve Cousins" , "Justin Piszcz" Cc: , References: <001801c73e14$c3177170$28df0f3d@kylecea1512a3f> <45B4D0ED.7030500@maine.edu> Subject: Re: change strip_cache_size freeze the whole raid Date: Mon, 22 Jan 2007 23:13:34 +0800 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > Justin Piszcz wrote: >> Yes, I noticed this bug too, if you change it too many times or change it >> at the 'wrong' time, it hangs up when you echo numbr > >> /proc/stripe_cache_size. >> >> Basically don't run it more than once and don't run it at the 'wrong' >> time and it works. Not sure where the bug lies, but yeah I've seen that >> on 3 different machines! > > Can you tell us when the "right" time is or maybe what the "wrong" time > is? Also, is this kernel specific? Does it (increasing > stripe_cache_size) work with RAID6 too? > > Thanks, > > Steve I think if your /sys/block/md_your_raid6/md/ have a file "stripe_cache_size", then it should works with raid6 too. Kyle