From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mondschein.lichtvoll.de ([194.150.191.11]:41107 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750913AbbAXKUH (ORCPT ); Sat, 24 Jan 2015 05:20:07 -0500 From: Martin Steigerwald To: Zygo Blaxell Cc: linux-btrfs@vger.kernel.org Subject: Re: 3.19-rc5: Bug 91911: [REGRESSION] rm command hangs big time with deleting a lot of files at once Date: Sat, 24 Jan 2015 11:20 +0100 Message-ID: <6466291.Yc27r3pZsf@merkaba> In-Reply-To: <20150123232934.GA14858@hungrycats.org> References: <2506104.3YBgc9qdaM@merkaba> <20150123232934.GA14858@hungrycats.org> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1451861.ZB0gAXeRl2"; micalg="pgp-sha1"; protocol="application/pgp-signature" Sender: linux-btrfs-owner@vger.kernel.org List-ID: --nextPart1451861.ZB0gAXeRl2 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Am Freitag, 23. Januar 2015, 18:29:40 schrieb Zygo Blaxell: > On Fri, Jan 23, 2015 at 03:01:28PM +0100, Martin Steigerwald wrote: > > Hi! > >=20 > > Anyone seen this? > >=20 > > Reported as: > >=20 > > https://bugzilla.kernel.org/show_bug.cgi?id=3D91911 >=20 > I have seen something like this since 3.15. >=20 > I've also seen its cousin, which gets stuck in evict_inode, but the > stacks of the hanging processes start from renameat2() instead of > unlinkat(). I haven't seen the renameat2() variant of this bug since > 3.18-rc6. I see. Well than it is at least not only happening here. So we have some more=20= BTRFS getting stuck issues. And this hangs happened here with BTRFS sti= ll=20 being able to allocate some hungs and there is also no kworker kthread = at=20 100% of one core, so this is a different issue. > > I just want to get rid of some 127000+ akonadi lost+found files, an= y > > delete command I start just gets rid of some thousands and then > > hangs. > > merkaba:~> btrfs fi df /home > > Data, RAID1: total=3D160.92GiB, used=3D111.09GiB > > System, RAID1: total=3D32.00MiB, used=3D48.00KiB > > Metadata, RAID1: total=3D5.99GiB, used=3D2.49GiB > > GlobalReserve, single: total=3D512.00MiB, used=3D0.00B > > merkaba:~> btrfs fi sh /home > > Label: 'home' uuid: [=E2=80=A6] > > Total devices 2 FS bytes used 113.58GiB > > devid 1 size 170.00GiB used 166.94GiB path > > /dev/mapper/msata-home > > devid 2 size 170.00GiB used 166.94GiB path > > /dev/mapper/sata-home > > Btrfs v3.18 Also there is a lot of free space inside the allocated chunks. [=E2=80=A6 description + dmesg as in bug report linked above =E2=80=A6]= =2D-=20 Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7 --nextPart1451861.ZB0gAXeRl2 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. Content-Transfer-Encoding: 7Bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEABECAAYFAlTDcdUACgkQmRvqrKWZhMer0ACgjLNhoaghMoZOyETkJGP1QpUT 0ikAn1Gf05ZkqRE4uCIsqX2I07dwgeAA =ljlM -----END PGP SIGNATURE----- --nextPart1451861.ZB0gAXeRl2--