From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:55893 "EHLO mx0b-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750946AbbAWO5e convert rfc822-to-8bit (ORCPT ); Fri, 23 Jan 2015 09:57:34 -0500 Date: Fri, 23 Jan 2015 09:56:54 -0500 From: Chris Mason Subject: Re: 3.19-rc5: Bug 91911: [REGRESSION] rm command hangs big time with deleting a lot of files at once To: Holger =?iso-8859-1?q?Hoffst=E4tte?= CC: Message-ID: <1422025014.28436.1@mail.thefacebook.com> In-Reply-To: References: <2506104.3YBgc9qdaM@merkaba> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8"; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: 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.org/show_bug.cgi?id%3D91911&k=ZVNjlDMF0FElm4dQtryO4A%3D%3D%0A&r=6%2FL0lzzDhu0Y1hL9xm%2BQyA%3D%3D%0A&m=fHpzX%2FNpDGcY26Q1T%2B0VtIyZz0GPMnG3qvE%2FVJ%2Blsf0%3D%0A&s=66b06542cc5a9585c9913a0b76885b4baba0a8028f70149803982388c9333d71 > > 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%26id%3D29249e14d6e3379a5c4bb098dd4beddfefbc606f&k=ZVNjlDMF0FElm4dQtryO4A%3D%3D%0A&r=6%2FL0lzzDhu0Y1hL9xm%2BQyA%3D%3D%0A&m=fHpzX%2FNpDGcY26Q1T%2B0VtIyZz0GPMnG3qvE%2FVJ%2Blsf0%3D%0A&s=137b101ca50e644b95dc2b14758cf1472e9cc0097b4f89f7edf8e2845455b20f > > and > > https://urldefense.proofpoint.com/v1/url?u=https://git.kernel.org/cgit/linux/kernel/git/josef/btrfs-next.git/commit/?h%3Devict-softlockup%26id%3De4a58b71ff981b098ac3371f4d573dc6a90006ce&k=ZVNjlDMF0FElm4dQtryO4A%3D%3D%0A&r=6%2FL0lzzDhu0Y1hL9xm%2BQyA%3D%3D%0A&m=fHpzX%2FNpDGcY26Q1T%2B0VtIyZz0GPMnG3qvE%2FVJ%2Blsf0%3D%0A&s=3462ceb04ffed8316e21ffe16eee4e3274f9771a58326cd1bbb9c1cfc1eef9ba > > 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? -chris