From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net ([212.227.15.15]:61925 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964838AbbJ0SYs (ORCPT ); Tue, 27 Oct 2015 14:24:48 -0400 Subject: Re: btrfs-balance causes system-freeze on full disk To: Hugo Mills , linux-btrfs@vger.kernel.org References: <40k4gc-scp.ln1@aldebaran.xundeenergie.at> <20151027170904.GK11331@carfax.org.uk> From: =?UTF-8?Q?Jakob_Sch=c3=bcrz?= Message-ID: <562FC132.2080209@nurfuerspam.de> Date: Tue, 27 Oct 2015 19:23:46 +0100 MIME-Version: 1.0 In-Reply-To: <20151027170904.GK11331@carfax.org.uk> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="joprSXUeXxTXhOKrIliQc4RT41FgGmUgj" Sender: linux-btrfs-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --joprSXUeXxTXhOKrIliQc4RT41FgGmUgj Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Am 2015-10-27 um 18:09 schrieb Hugo Mills: > On Tue, Oct 27, 2015 at 05:05:55PM +0100, Jakob Sch=C3=BCrz wrote: >> Found a new habit... >> >> I have a lot Snapshots on my drive. (Take every 10 Min a new one, ever= y >> houry one, every day one, every system-update, every plugin after >> external HD...) >> >> If there are to much snapshots (didn't find out the count how much >> exactly) balancing fails with a system-freeze. >> if i delete some of my snapshots, balancing is working... >=20 > The whole machine comes to a halt, or just the balancing?=20 The whole machine. Even magic-sysreq-keys are not reacting... I have to reboot my machine using the power-button... > If you > have lots of snapshots, balance can take *insane* amounts of time -- > my big storage array, for example, takes about 60 seconds to balance a > data block group, and something like 4+ hours to balance some of the > metadata block groups. While it's "stuck" like that, it is actually > making progress, but it doesn't look like it. I know, balancint takes a huge amount of time. So my command is: /bin/btrfs balance start -dusage=3D55 -v When balancing is running, the machine reactes a little slower than normal... but in my case, the machine is freezing. completly and totally... :( greez jakob --joprSXUeXxTXhOKrIliQc4RT41FgGmUgj Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCAAGBQJWL8EyAAoJEF2YPOCqoD05q9UH/1el1RE9qBNLSw19nNzmE6VJ HNxStZIdNr8B+sbikrW/jcygW5jknOvXcX2OzAuYoGV07VI1Ta+ZJMXZxJwZlwKg gJ9X53FGWEArjvUrQkeXPxOxQcTRXggpD2ZedCJh4fz5hVbE4r0xnfg9nKQVZNA3 0V9vTuEgD6qE0QWnrewNXpSuruqbKTJwE6zfdbORxLavapKWV1mM/Hc7uQCXspYs cTulUUuQLL9z/qQyyEEAkcdH10h3SwKbxiU0mobr2nvNB8jl+KsKZ2hIoE3n9CZU KBE/ZGk8dyKo8kRCz5djTmlSJvv+BcxnCSnhzIeH/+bCueRtpJ/EwEmmV8s9TU4= =uDds -----END PGP SIGNATURE----- --joprSXUeXxTXhOKrIliQc4RT41FgGmUgj--