From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mondschein.lichtvoll.de ([194.150.191.11]:43551 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752114AbbAXOOz convert rfc822-to-8bit (ORCPT ); Sat, 24 Jan 2015 09:14:55 -0500 From: Martin Steigerwald To: Chris Mason Cc: Holger =?ISO-8859-1?Q?Hoffst=E4tte?= , 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 15:14:53 +0100 Message-ID: <1609126.kYbLECeJBA@merkaba> In-Reply-To: <1422025014.28436.1@mail.thefacebook.com> References: <2506104.3YBgc9qdaM@merkaba> <1422025014.28436.1@mail.thefacebook.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Sender: linux-btrfs-owner@vger.kernel.org List-ID: Am Freitag, 23. Januar 2015, 09:56:54 schrieb Chris Mason: > On Fri, Jan 23, 2015 at 9:38 AM, Holger Hoffstätte > > wrote: > > On Fri, 23 Jan 2015 15:01:28 +0100, Martin Steigerwald wrote: > >> Hi! > >> > >> Anyone seen this? > >> > >> Reported as: > >> https://urldefense.proofpoint.com/v1/url?u=https://bugzilla.kernel.or > >> g/show_bug.cgi?id%3D91911&k=ZVNjlDMF0FElm4dQtryO4A%3D%3D%0A&r=6%2FL0l > >> zzDhu0Y1hL9xm%2BQyA%3D%3D%0A&m=fHpzX%2FNpDGcY26Q1T%2B0VtIyZz0GPMnG3qv > >> E%2FVJ%2Blsf0%3D%0A&s=66b06542cc5a9585c9913a0b76885b4baba0a8028f70149 > >> 803982388c9333d71> > > You might be interested in: > > > > https://urldefense.proofpoint.com/v1/url?u=https://git.kernel.org/cgit > > /linux/kernel/git/josef/btrfs-next.git/commit/?h%3Devict-softlockup%26 > > id%3D29249e14d6e3379a5c4bb098dd4beddfefbc606f&k=ZVNjlDMF0FElm4dQtryO4A > > %3D%3D%0A&r=6%2FL0lzzDhu0Y1hL9xm%2BQyA%3D%3D%0A&m=fHpzX%2FNpDGcY26Q1T% > > 2B0VtIyZz0GPMnG3qvE%2FVJ%2Blsf0%3D%0A&s=137b101ca50e644b95dc2b14758cf1 > > 472e9cc0097b4f89f7edf8e2845455b20f > > > > and > > > > https://urldefense.proofpoint.com/v1/url?u=https://git.kernel.org/cgit > > /linux/kernel/git/josef/btrfs-next.git/commit/?h%3Devict-softlockup%26 > > id%3De4a58b71ff981b098ac3371f4d573dc6a90006ce&k=ZVNjlDMF0FElm4dQtryO4A > > %3D%3D%0A&r=6%2FL0lzzDhu0Y1hL9xm%2BQyA%3D%3D%0A&m=fHpzX%2FNpDGcY26Q1T% > > 2B0VtIyZz0GPMnG3qvE%2FVJ%2Blsf0%3D%0A&s=3462ceb04ffed8316e21ffe16eee4e > > 3274f9771a58326cd1bbb9c1cfc1eef9ba > > > > I'm sure everyone would love to hear how this works out for you ;-) > > These are a little different. Josef is fixing softlockups (CPUs pegged > in R state) while this bug report is for sleeping procs. The fact that > things come back sound like we're pegged waiting for IO? Do you have a > lot of writing going on at the same time? Who? Me? No. Akonadi was quite silent at this time. According to atop the SSDs where basically idle. It just locked. -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7