From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Robert Pluim Newsgroups: gmane.emacs.devel Subject: Re: wait_reading_process_ouput hangs in certain cases (w/ patches) Date: Wed, 14 Mar 2018 10:22:18 +0100 Message-ID: <877eqfovud.fsf@gmail.com> References: <709614e8-1937-07c1-f554-b453ed4f3d4a@binary-island.eu> <7550438b-9fd4-d374-e571-8bb16456cad5@cs.ucla.edu> <797d0e16-1bae-50c2-35f8-05489ffce935@binary-island.eu> <83tvugdiu5.fsf@gnu.org> <877er5s0xv.fsf@gmail.com> <4e4c72bb-295d-81e1-e4ed-cad256bca83c@binary-island.eu> <87zi3v9461.fsf@gmail.com> <87k1uy8x68.fsf@gmail.com> <6d1970af-8c5c-20ba-be09-0b9aa757d663@binary-island.eu> <13b3e003-d12b-33a7-3ebe-c07b017a7cc0@binary-island.eu> <833714rm3d.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1521019236 9642 195.159.176.226 (14 Mar 2018 09:20:36 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 14 Mar 2018 09:20:36 +0000 (UTC) Cc: emacs-devel@gnu.org To: Leo Liu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Mar 14 10:20:32 2018 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ew2aF-0002PP-Ph for ged-emacs-devel@m.gmane.org; Wed, 14 Mar 2018 10:20:31 +0100 Original-Received: from localhost ([::1]:45066 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ew2cI-0000FC-R2 for ged-emacs-devel@m.gmane.org; Wed, 14 Mar 2018 05:22:38 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:56049) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ew2c6-0000Dn-MG for emacs-devel@gnu.org; Wed, 14 Mar 2018 05:22:27 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ew2c1-0006Ev-Kb for emacs-devel@gnu.org; Wed, 14 Mar 2018 05:22:26 -0400 Original-Received: from mail-wm0-x22d.google.com ([2a00:1450:400c:c09::22d]:51744) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ew2c1-0006Eb-Et for emacs-devel@gnu.org; Wed, 14 Mar 2018 05:22:21 -0400 Original-Received: by mail-wm0-x22d.google.com with SMTP id h21so2588053wmd.1 for ; Wed, 14 Mar 2018 02:22:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:references:mail-followup-to:mail-copies-to :gmane-reply-to-list:date:in-reply-to:message-id:mime-version; bh=T5+TucbdohxYm3cKnYlRsOcz9mxWbMBc68WNfRA9amA=; b=jI3N3KIK7OTOKpzn4aey0DAaIezJ57lQXu7PaO06NaalZZUgzareD0gTi4xTcc8WG5 veS1SJTYwVbt6R7Ccw7YcG310Pod/AR9W9Gn38nWIdKvaf5vPw8MHXvNtcjYsvPK3kDw bk/iBypAYyahn3A25vDVrqLoXs2xFXQCITtgryz3bvHu1k488OV68KT+NrLbMKXiBHFq Hc7OhEq9NyyRhS3DrFfwrqfJp9i2qRTvlqP3FL/0Px9cIUlr3Ln01SjjnhSp/cjRX2oo fZnQ3ULNLi/uzkhluR94TxCUy6CtnxpBIi9AyDfjyBrtXphUlFbrnvx0EiINIfSvHhz0 dSPQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:references:mail-followup-to :mail-copies-to:gmane-reply-to-list:date:in-reply-to:message-id :mime-version; bh=T5+TucbdohxYm3cKnYlRsOcz9mxWbMBc68WNfRA9amA=; b=fSzI0vrOWdlC6dmEf0InMvoZQ+AT6WqXYO6fPxtZgatQ6JndhtECQy60wpmD/ONFRI uKTptOzaw10riqoH7/TMFKsKnBHW+zXtgznWku76O6e9aR6R3CK1ItdTllAru3ursqyw zKt0YELW2G7Kh4ouVpp0uVnsu7ez9AuQmVFDhoAia7i2/Ob7nYAwr9rv33SHb1LHX2GZ KdCYtYF2bnxBH51WTK4rnv5x7ruuIqzja5T/RaMCx/qulpn07x2AamfypFdxyGKLhHvq OgeCAwaZ443ux8ssCEI1j2kvO/TPkD7LlyqzXB0KpqE1KET9CGnZMJkRfnX4fcRMyRm1 0YjA== X-Gm-Message-State: AElRT7FEwY8mlvlib//+BvCBWj0p0FN7rFDFTTGoq2u2KJkHyIMf9xFK 0KAsIXDBhKvHSbe9cOnK7tSmVZ9L6cs= X-Google-Smtp-Source: AG47ELs5AXINqWJyVFHZSU8A13qxJbMpwhm7Z331C+yEoydY5pgtWAqFme4P+rIA0YjEfT13xFzMyQ== X-Received: by 10.28.116.17 with SMTP id p17mr1066067wmc.137.1521019339916; Wed, 14 Mar 2018 02:22:19 -0700 (PDT) Original-Received: from rpluim-ubuntu ([149.5.228.1]) by smtp.gmail.com with ESMTPSA id r14sm2381349wre.35.2018.03.14.02.22.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 02:22:19 -0700 (PDT) Mail-Followup-To: emacs-devel@gnu.org Mail-Copies-To: never Gmane-Reply-To-List: yes In-Reply-To: (Leo Liu's message of "Wed, 14 Mar 2018 12:16:14 +0800") X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:400c:c09::22d X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:223714 Archived-At: Leo Liu writes: > On 2018-03-13 18:12 +0200, Eli Zaretskii wrote: >> I don't think it makes sense to put this on the emacs-26 branch, >> sorry. I even have evidence: the fact that one of the hunks >> re-introduced a previously solved bug, as pointed out by Robert. >> >> This code is very delicate and very central to Emacs operation. It's >> very easy to break Emacs subtly by seemingly-innocent changes in that >> area. We really need to test it much more than a few weeks before we >> are confident enough it is bug-free. The master branch is where such >> changes should be tested. > > Is there possibility of including it in the 26.x series? I mean wait > until 27.1 is just too long to see such a critical fix. > Is it that critical, though? I see no hangs with emacs-26 (nor master for that matter, but I use that less). > In last week I have experienced 2-3 times of hangs (emacs 25.3) that > consumed ~0% CPU but emacs was not responding to anything (C-g, SIGUSR2 > etc). Do you get the same hangs in emacs-26? Robert