From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mondschein.lichtvoll.de ([194.150.191.11]:42584 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751234AbaGWWrI convert rfc822-to-8bit (ORCPT ); Wed, 23 Jul 2014 18:47:08 -0400 From: Martin Steigerwald To: Chris Mason Cc: linux-btrfs@vger.kernel.org Subject: Re: BTRFS hang with 3.16-rc5 (and also with 3.16-rc4) Date: Thu, 24 Jul 2014 00:47:05 +0200 Message-ID: <1809953.ithLVmijbn@merkaba> In-Reply-To: <1984661.CMGGdWA6Ux@merkaba> References: <1502954.OtX3SzjMKZ@merkaba> <53C52AE4.6010803@fb.com> <1984661.CMGGdWA6Ux@merkaba> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Sender: linux-btrfs-owner@vger.kernel.org List-ID: Am Dienstag, 15. Juli 2014, 17:08:27 schrieb Martin Steigerwald: > Am Dienstag, 15. Juli 2014, 09:21:40 schrieb Chris Mason: > > On 07/14/2014 05:58 PM, Martin Steigerwald wrote: > > > Am Montag, 14. Juli 2014, 16:12:22 schrieb Chris Mason: > > >> On 07/14/2014 11:10 AM, Martin Steigerwald wrote: > > >>> Am Montag, 14. Juli 2014, 17:04:22 schrieben Sie: > > >>>> Hi! > > >>>> > > >>>> While with 3.16-rc3 and rc4 I didn´t have a BTRFS hang in several > > >>>> days > > >>>> of > > >>>> usage, with 3-16-rc5 I had a hang again. Less than a hour since > > >>>> booting > > >>>> it. > > >>>> > > >>>> Since the hang bug I and others had with 3.15 and upto 3.16-rc2 > > >>>> usually > > >>>> didn´t happen that quickly after boot and since backtrace looks a bit > > >>>> different from what I have in memory, I post this in a new thread. > > >>>> See thread "Blocked tasks on 3.15.1" for a discussion of previous > > >>>> hang > > >>>> issues. > > >>> > > >>> Probably good to add some basic information on the filesystem: > > >> Do you have compression enabled? I wasn't able to nail down the 3.15.1 > > >> hang before vacation attacked me, but I'm hoping to track it down > > >> today. > > > > > > Yes. I have. > > > > > > It just hung again while I was playing PlaneShift. > > > > > > Back to 3.16-rc4 as rc5 seems to be broke here. > > > > The btrfs hang you're hitting goes back to 3.15. So 3.16-rc4 vs rc5 > > shouldn't be a factor. Are you hitting other problems with 3.16? > > So far for this day 3.16-rc4 behaves nicely. With 3.16-rc5 I had a BTRFS > hang twice yesterday. 3.16-rc4 before also behaved nicely for several days > or well about a week here. 3.16-rc4 now hung as well… Maybe it hangs more rarely, but it hangs as well it seems. -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7