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 X-Spam-Level: X-Spam-Status: No, score=-0.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 85878C433DF for ; Fri, 5 Jun 2020 20:20:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 61340207F7 for ; Fri, 5 Jun 2020 20:20:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=anarazel.de header.i=@anarazel.de header.b="CYyUKr+c"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="PUtcQybQ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728146AbgFEUUc (ORCPT ); Fri, 5 Jun 2020 16:20:32 -0400 Received: from out5-smtp.messagingengine.com ([66.111.4.29]:39263 "EHLO out5-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727888AbgFEUUb (ORCPT ); Fri, 5 Jun 2020 16:20:31 -0400 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 1AE195C0220; Fri, 5 Jun 2020 16:20:30 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute3.internal (MEProxy); Fri, 05 Jun 2020 16:20:30 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=anarazel.de; h= date:from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=fm1; bh=8Sd1UA1Rns+FZI+rH9tZEZ2IbKv SUgm8eaWOiwmGMC8=; b=CYyUKr+cO6vvvvogBSjD7SEC+fPs3Xb1tiB713CUmOs sSAaerBO+ZIVw3+7W6PZnzHNsYokYVNpPWTL+/zej91AG2Zq8fhvX7J9KanCHMxe R94tl+3O84jhCrVWXgeb3mgEhV2lwo5y2L9ZF26AMOLND8nvo0QmgobuwANl+rOt VD7dKBSFqvhXQwiV646tJsRXMROxvXG+sRyHmOiWfW7rkvHjsQ++Urql77JiVBtx hCvQ8fQFO/mZOKQFR3g/RLGeCwk/1sR6HppJDATKuddJfz1sLg5btPuJ+7B0rl4f seAYzdRg1uBhfde6g8jzB4wOfF/3swDI+qfEnkQtwNA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm3; bh=8Sd1UA 1Rns+FZI+rH9tZEZ2IbKvSUgm8eaWOiwmGMC8=; b=PUtcQybQ3jvq32TUdtaGAS RvYBKMPsTJvQSAIfdV5WVamdWY/ccUa86zTzaO+uBV43v5PfxsPotr0zdlhrZWIu js867QqmxU6BbRv7VVQv+B9rzQGewcNkJwKShQrpCyDX2Z4OzRDqEKzyerHN54FL iuFGKK/JT5PWOVARk9J356UOiNOE3IE4W8RpkWlD3hiMz1WGLqbAjxSO0SWqj33k 1dAFCgn4VXOv/w1marpHVi3XQvAcrmQB4rVJ3LgYItDMd0fdreavXo0yqPwri3sq P4qN4kkeoX03CpRPt3scGazakPfJopdF1bThEPKi0CzK303dL63ea+Rog+L8FyTg == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduhedrudegfedgudefgecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpeffhffvuffkfhggtggujgesthdtredttddtvdenucfhrhhomheptehnughr vghsucfhrhgvuhhnugcuoegrnhgurhgvshesrghnrghrrgiivghlrdguvgeqnecuggftrf grthhtvghrnhepudekhfekleeugeevteehleffffejgeelueduleeffeeutdelffeujeff hfeuffdunecukfhppeeijedrudeitddrvddujedrvdehtdenucevlhhushhtvghrufhiii gvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpegrnhgurhgvshesrghnrghrrgiivghl rdguvg X-ME-Proxy: Received: from intern.anarazel.de (c-67-160-217-250.hsd1.ca.comcast.net [67.160.217.250]) by mail.messagingengine.com (Postfix) with ESMTPA id 6381530614FA; Fri, 5 Jun 2020 16:20:29 -0400 (EDT) Date: Fri, 5 Jun 2020 13:20:28 -0700 From: Andres Freund To: Jens Axboe Cc: io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, akpm@linux-foundation.org Subject: Re: [PATCHSET v5 0/12] Add support for async buffered reads Message-ID: <20200605202028.d57nklzpeolukni7@alap3.anarazel.de> References: <20200526195123.29053-1-axboe@kernel.dk> <20200604005916.niy2mejjcsx4sv6t@alap3.anarazel.de> <6eeff14f-befc-a5cc-08da-cb77f811fbdf@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6eeff14f-befc-a5cc-08da-cb77f811fbdf@kernel.dk> Sender: io-uring-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Hi, On 2020-06-05 08:42:28 -0600, Jens Axboe wrote: > Can you try with async-buffered.7? I've rebased it on a new mechanism, > and doing something like what you describe above I haven't been able > to trigger anything bad. I'd try your test case specifically, so do let > know if it's something I can run. I tried my test on async-buffered.7?, and I get hangs very quickly after starting. Unfortunately, I don't seem to get an OOPSs, not sure yet why. Let me know if my test triggers for you. I'll go and try to figure out why I don't see an oops... Regards, Andres