From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.virtall.com ([178.63.195.102]:49171 "EHLO mail.virtall.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750756AbaF0KCr (ORCPT ); Fri, 27 Jun 2014 06:02:47 -0400 Received: from mailext.virtall.com (localhost [127.0.0.1]) by mailext.virtall.com (Postfix) with ESMTP id 1D37B42B9DB for ; Fri, 27 Jun 2014 12:02:44 +0200 (CEST) To: linux-btrfs Subject: Re: Blocked tasks on 3.15.1 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Date: Fri, 27 Jun 2014 12:02:43 +0200 From: Tomasz Chmielewski Message-ID: <52e3cfababa49919100759860b59aa7c@admin.virtall.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: > I've been getting blocked tasks on 3.15.1 generally at times when the > filesystem is somewhat busy (such as doing a backup via scp/clonezilla > writing to the disk). > > A week ago I had enabled snapper for a day which resulted in a daily > cleanup of about 8 snapshots at once, which might have contributed, > but I've been limping along since. I've started seeing similar on several servers, after upgrading to 3.15 or 3.15.1. With 3.16-rc1 it was even crashing for me. I've rolled back to the latest 3.14.x, and it's still behaving fine. I've signalled it before on the list in "btrfs filesystem hang with 3.15-rc3 when doing rsync" thread. -- Tomasz Chmielewski http://www.sslrack.com