From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail02.iobjects.de ([188.40.134.68]:35854 "EHLO mail02.iobjects.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756716AbdKQTDK (ORCPT ); Fri, 17 Nov 2017 14:03:10 -0500 Subject: Re: 4.13.12: kernel BUG at fs/btrfs/ctree.h:1802! To: Marc MERLIN Cc: linux-btrfs@vger.kernel.org References: <20171116170445.24n57phzltgiehj6@merlins.org> <20171116170742.vyhxckxrgjzwqyvf@merlins.org> <70b25128-d724-4e8e-9835-4a092cf8d5a6@applied-asynchrony.com> <20171116214551.vpp4eevs7b4bszjt@merlins.org> <2b97e49b-74fd-77c1-a340-8254f8999bb1@applied-asynchrony.com> <20171117001256.GN10969@merlins.org> <20171117104148.04986eee@natsu> <20171117055315.7bmhthyqityiffwl@merlins.org> <20171117174826.fqks43rt4nyjxubj@merlins.org> From: =?UTF-8?Q?Holger_Hoffst=c3=a4tte?= Message-ID: Date: Fri, 17 Nov 2017 20:03:07 +0100 MIME-Version: 1.0 In-Reply-To: <20171117174826.fqks43rt4nyjxubj@merlins.org> Content-Type: text/plain; charset=utf-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 11/17/17 18:48, Marc MERLIN wrote: > On Thu, Nov 16, 2017 at 09:53:15PM -0800, Marc MERLIN wrote: >>> I suggest that you try lvmcache instead. It's much more flexible than bcache, >>> does pretty much the same job, and has much less of the "hacky" feel to it. >> >> I can read up on it, it's going to be a big pain to convert from one to >> the other, but I can look at it for new filesystems. > > I had a quick read. As expected, it's slower since it goes through all > the LVM overhead that I got rid of recently > https://github.com/stec-inc/EnhanceIO/wiki/PERFORMANCE-COMPARISON-AMONG-dm-cache,-bcache-and-EnhanceIO > > Given the pain it would be for me to switch, I'm going to stick with > bcache and hope it improves. My understanding is that bcache until recently was more or less unmaintained, but got quite a few patches for 4.14 and now has a new maintainer as well. So things are looking up. -h