From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.fusionio.com ([66.114.96.31]:56679 "EHLO mx2.fusionio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757858Ab2IMM4V (ORCPT ); Thu, 13 Sep 2012 08:56:21 -0400 Date: Thu, 13 Sep 2012 08:56:18 -0400 From: Josef Bacik To: Roman Mamedov CC: "linux-btrfs@vger.kernel.org" Subject: Re: "Task blocked for more than 120 seconds" on file copy Message-ID: <20120913125618.GD12994@localhost.localdomain> References: <20120913031623.1e2d18f5@natsu> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" In-Reply-To: <20120913031623.1e2d18f5@natsu> Sender: linux-btrfs-owner@vger.kernel.org List-ID: On Wed, Sep 12, 2012 at 03:16:23PM -0600, Roman Mamedov wrote: > Hello, > > I was copying a 60 GB file onto btrfs, and at the same time tried to stop/restart Squid, > which has its cache on the same partition. Squid locked up until the copying was finished. > This filesystem was resized by about +100% just before, if this could matter. > The kernel is 3.6.0-rc5. From dmesg: > When you get these sort of lockups we need sysrq+w to get all of the blocked tasks, not just hte ones that the hung task timer catches. Thanks, Josef