From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f194.google.com ([209.85.214.194]:39152 "EHLO mail-pl1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726786AbfDUPhT (ORCPT ); Sun, 21 Apr 2019 11:37:19 -0400 Date: Sun, 21 Apr 2019 23:37:05 +0800 From: Eryu Guan Subject: Re: [PATCH] btrfs: test send with deduplication running concurrently Message-ID: <20190421153705.GD22372@desktop> References: <20190415083121.2338-1-fdmanana@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: fstests-owner@vger.kernel.org To: Filipe Manana Cc: fstests , linux-btrfs , Filipe Manana List-ID: On Sat, Apr 20, 2019 at 02:14:25PM +0000, Filipe Manana wrote: > On Mon, Apr 15, 2019 at 9:32 AM wrote: > > > > From: Filipe Manana > > > > Stress send running in parallel with deduplication against files that > > belong to the snapshots used by send. The goal is to hit assertion failures > > and BUG_ONs when send is running, or send finding an inconsistent snapshot > > that leads to a failure (reported in dmesg/syslog) and results in an EIO > > error returned to user space. The test needs big trees (snapshots) with > > large differences between the parent and send snapshots in order to hit > > such issues with a good probability. > > > > This currently fails in btrfs, and there is a patch for the linux kernel > > that fixes it and is titled: > > > > "Btrfs: fix race between send and deduplication that lead to failures > > and crashes" > > > > Signed-off-by: Filipe Manana > > Eryu, can you please skip this patch for now? I want to do a v2, > likely next week, which tests a few more things. > Thanks. Sure, thanks for the heads-up! Eryu