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=DKIMWL_WL_HIGH,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 38E3DC2D0BE for ; Sun, 8 Dec 2019 18:11:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 14C0A2054F for ; Sun, 8 Dec 2019 18:11:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575828674; bh=6D2BLjT1MjmYJi5BZ3eUc40zDPEQHm5kYxiP0y9flB4=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=tCza5Modn+zTFs+44z6LyAgj7dKCiiYaXxWP3oWIDZvzKW9IqHb0wgUHwg1OBb8JD t79ZUUFK2oke+/EOf+bYsg81vKb4IVEuGHsMcdRZSywBVWQXxb5U+WZ2dLssDZwjor Tm6Y1EqdcBIcc8LlOw4afkqmNAFEXqpL9kmO/DQs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726566AbfLHSLN (ORCPT ); Sun, 8 Dec 2019 13:11:13 -0500 Received: from mail-lf1-f67.google.com ([209.85.167.67]:44914 "EHLO mail-lf1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726506AbfLHSLM (ORCPT ); Sun, 8 Dec 2019 13:11:12 -0500 Received: by mail-lf1-f67.google.com with SMTP id v201so8892912lfa.11 for ; Sun, 08 Dec 2019 10:11:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=4bP+MLqv2/4jxjq5G8WI3V8blQrwy5vvH8NjA0Oq9xU=; b=H0B9voLfv9AYLRDixmAeg/5DRF8QLotazZN/4owvkzDMXfPsktWaen4Q3k9MedABQL 0pB2E+DsxZ88pf8Iftm8Zpi/eUzhjTeP2HrbKUH1z9La6YaZoUY5Mc7J6SV7VX3rGun9 NOn+0S2wMJe3ABAu0HEETzU4Av3UFzbmNvuFQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=4bP+MLqv2/4jxjq5G8WI3V8blQrwy5vvH8NjA0Oq9xU=; b=ZdehyLhcT65+BRwI628RRdLhjDtlNSsit8maM+49mUWqVn+gJDjwWYkgxeN405+8Ma +Inz7DKXLfRftIkj/vATARIjeMA6Kj2lpZhWC91ViHly1RiEq8etLnw0wopPiTFFemrP GbF3/LlaANZ+DIhQv8NZUGb4E4BQ1QMwlMFxvOEAL/wGEs7wN3rwFVq5VCfjrUHQ43qq tDVZ3YoXhdsm0BjwDPqoXWPV0KHJDceyTU1tYexP9bjFBqY1SEqUXoz+GGVqdUywh4W3 J40icMpuzjulRg2jU5mRPjkbSjEDYxf3MeUItbV4iHQKBAmXkOEFiTtKD8ejwvjdtENb qhKg== X-Gm-Message-State: APjAAAV9NLKR17SoMXQbX3fsRR36gH0UOd7BHvfkPmkaEmBRMay1+gfY cSgs4i6vnAO5g9ak1ZPTP8dVQjR5FDY= X-Google-Smtp-Source: APXvYqypd/cd3H513YQtuoFqmxsBlp1mhOJ8PHcCeZQi0ns+0l7DThz1IFT8gEXyIdnOYHiqzaVnow== X-Received: by 2002:a19:5212:: with SMTP id m18mr13150437lfb.7.1575828669500; Sun, 08 Dec 2019 10:11:09 -0800 (PST) Received: from mail-lf1-f49.google.com (mail-lf1-f49.google.com. [209.85.167.49]) by smtp.gmail.com with ESMTPSA id w2sm9764155ljo.61.2019.12.08.10.11.07 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 08 Dec 2019 10:11:08 -0800 (PST) Received: by mail-lf1-f49.google.com with SMTP id 15so8951269lfr.2 for ; Sun, 08 Dec 2019 10:11:07 -0800 (PST) X-Received: by 2002:ac2:465e:: with SMTP id s30mr10244080lfo.134.1575828667708; Sun, 08 Dec 2019 10:11:07 -0800 (PST) MIME-Version: 1.0 References: <157186182463.3995.13922458878706311997.stgit@warthog.procyon.org.uk> <157186186167.3995.7568100174393739543.stgit@warthog.procyon.org.uk> <20191206214725.GA2108@latitude> <20191207000015.GA1757@latitude> <20191208175602.GA1844@latitude> In-Reply-To: <20191208175602.GA1844@latitude> From: Linus Torvalds Date: Sun, 8 Dec 2019 10:10:51 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] To: Johannes Hirte Cc: David Howells , Rasmus Villemoes , Greg Kroah-Hartman , Peter Zijlstra , Nicolas Dichtel , raven@themaw.net, Christian Brauner , keyrings@vger.kernel.org, linux-usb@vger.kernel.org, linux-block , LSM List , linux-fsdevel , Linux API , Linux Kernel Mailing List Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Dec 8, 2019 at 9:56 AM Johannes Hirte wrote: > > whereas with a fresh cloned repo I get: > > v5.4-13331-g9455d25f4e3b > > I assume the later is right. With this version the bug seems to be > fixed, regardless of the commit count. Tested with different websites > and firefox works as expected again. Ok, good. It was almost certainly the select/poll race fix - Mariusz Ceier reported a problem with youtube hanging, and confirmed that the poll/select fix seems to have cleared that one up. I suspect that your hang on fb and spiegel.de were the same thing. So I think the pipe code is stable again with current -git. Thanks for reporting and testing, Linus