From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 062A7C433FE for ; Mon, 17 Jan 2022 17:37:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241801AbiAQRhA (ORCPT ); Mon, 17 Jan 2022 12:37:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54168 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241703AbiAQRg6 (ORCPT ); Mon, 17 Jan 2022 12:36:58 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 278C7C06161C; Mon, 17 Jan 2022 09:36:58 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id D9893B81055; Mon, 17 Jan 2022 17:36:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9530DC36AE7; Mon, 17 Jan 2022 17:36:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1642441015; bh=UzJhQ0AKfaTOBAIKVFEkFv4qjL1yQovrHGMFvlWtiSE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=rzFg1p7KQSLRjAvAvEX47s6FXHk6GCMvsdDJm6whcQFjL9CSqvbM2kxWoPUKZWWdP ZTmlcxncM71us6hP7im+f5nVW6aOhsd51C5zmjUmuocKLYRuYfVQ2Cs23SREP84i4r MG54olTlPugZ73zm5Q4Hi6XMdG3PIzhMEbfCpx17TTB5bILrdnJMPXDrQTbV8tznr2 2PWyakt/uO3PsaoJE/A326e3vJuj9L8g4aKahsFA5NJXdYvO/HJYOabpF8tj+Pp4pO NpJErxbnOtMZd1rFxJkiAb25WKV9h3az1/4iGyOhbF7cpgFMlL+7FKhfdOQw1UyHzM HOzvy0npta+Zg== Date: Mon, 17 Jan 2022 09:36:55 -0800 From: "Darrick J. Wong" To: Trond Myklebust , "david@fromorbit.com" Cc: "bfoster@redhat.com" , "linux-fsdevel@vger.kernel.org" , "trondmy@kernel.org" , "hch@infradead.org" , "axboe@kernel.dk" , "linux-xfs@vger.kernel.org" , "willy@infradead.org" Subject: Re: [PATCH] iomap: Address soft lockup in iomap_finish_ioend() Message-ID: <20220117173655.GA13563@magnolia> References: <20220103220310.GG945095@dread.disaster.area> <9f51fa6169f4c67d54dd8563b52c540c94c7703a.camel@hammerspace.com> <20220104012215.GH945095@dread.disaster.area> <0996c40657b5873dda5119344bf74556491e27b9.camel@hammerspace.com> <20220105224829.GO945095@dread.disaster.area> <28e975e8235a41c529bccb2bc0e73b4bb2d1e45e.camel@hammerspace.com> <20220110233746.GB945095@dread.disaster.area> <47240d293a6ce4d0119563989cba42f46dcaa4e3.camel@hammerspace.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <47240d293a6ce4d0119563989cba42f46dcaa4e3.camel@hammerspace.com> Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Mon, Jan 17, 2022 at 05:24:50PM +0000, Trond Myklebust wrote: > Hi Dave & Brian, > > On Thu, 2022-01-13 at 12:01 -0500, Trond Myklebust wrote: > > > > Yesterday I figured out a testing issue that was causing confusion > > among the people doing the actual testing. They were seeing hangs, > > which were not soft lockups, and which turned out to be artifacts of > > the testing methodology. > > > > With this patch, it appears that we are not reproducing the soft > > lockups. > > > > What are the next steps you need from me at this point? Can someone (Dave?) please re-send whatever the latest version of the fixpatch is to the list as a new thread? With Tested-by tags, etc.? Once that's done I'll push it to for-next as a 5.17 bugfix. (/me is on vacation today; see you all tomorrow.) --D > -- > Trond Myklebust > Linux NFS client maintainer, Hammerspace > trond.myklebust@hammerspace.com > >