From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marcin M Subject: Re: kernel thread "flush-254:12" eats 100% CPU Date: Wed, 07 Sep 2011 19:27:40 +0200 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-2 Content-Transfer-Encoding: 7bit To: linux-ext4@vger.kernel.org Return-path: Received: from lo.gmane.org ([80.91.229.12]:40623 "EHLO lo.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751647Ab1IGR1y (ORCPT ); Wed, 7 Sep 2011 13:27:54 -0400 Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1R1Luj-00012H-BD for linux-ext4@vger.kernel.org; Wed, 07 Sep 2011 19:27:53 +0200 Received: from r1.spray.net.pl ([83.143.40.194]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 07 Sep 2011 19:27:53 +0200 Received: from gmane by r1.spray.net.pl with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 07 Sep 2011 19:27:53 +0200 In-Reply-To: Sender: linux-ext4-owner@vger.kernel.org List-ID: Suplement. High cpu load appears in random time interval. All filesystems which has this problem was created with smaller than default block size. I've got a few other fs with small black size but thread flush-254 always appear on the same device.