From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from aristoteles.cuci.nl ([212.125.128.18]:56320 "EHLO aristoteles.cuci.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750726AbbLaQ17 (ORCPT ); Thu, 31 Dec 2015 11:27:59 -0500 Date: Thu, 31 Dec 2015 17:27:57 +0100 From: "Stephen R. van den Berg" To: linux-btrfs@vger.kernel.org Subject: Re: kernel BUG at fs/btrfs/send.c:1482 Message-ID: <20151231162757.GB5579@cuci.nl> References: <20151231160416.GA5579@cuci.nl> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20151231160416.GA5579@cuci.nl> Sender: linux-btrfs-owner@vger.kernel.org List-ID: Stephen R. van den Berg wrote: >I'm running 4.4.0-rc7. >This exact problem was present on 4.0.5 and 4.3.3 too though. >I do a "btrfs send /var/lib/lxc/template64/rootfs", that generates >the following error consistently at the same file, over and over again: >Dec 29 14:49:04 argo kernel: kernel BUG at fs/btrfs/send.c:1482! Ok, found part of the solution. The kernel bug was being triggered by symbolic links in that subvolume that have an empty target. It is unknown how these ever ended up on that partition. The partitions have been created using regular btrfs. The only strange thing that might have happened, is that I ran duperemove over those partitions afterward. -- Stephen.