From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Noam Postavsky Newsgroups: gmane.emacs.bugs Subject: bug#39158: 26.1; url-retrieve-synchronously possible race condition Date: Fri, 17 Jan 2020 12:46:01 -0500 Message-ID: <85v9pa7z8m.fsf@gmail.com> References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="55381"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (windows-nt) Cc: 39158@debbugs.gnu.org To: Ernesto Alfonso Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jan 17 18:53:14 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1isVo1-000EI0-Q6 for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 17 Jan 2020 18:53:13 +0100 Original-Received: from localhost ([::1]:32939 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1isVo0-0001NL-Hw for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 17 Jan 2020 12:53:12 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:55827) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1isVi4-0002HN-CF for bug-gnu-emacs@gnu.org; Fri, 17 Jan 2020 12:47:05 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1isVi1-0007h8-Qk for bug-gnu-emacs@gnu.org; Fri, 17 Jan 2020 12:47:04 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:34089) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1isVi1-0007gt-L2 for bug-gnu-emacs@gnu.org; Fri, 17 Jan 2020 12:47:01 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1isVi1-0006K2-Id for bug-gnu-emacs@gnu.org; Fri, 17 Jan 2020 12:47:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Noam Postavsky Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 17 Jan 2020 17:47:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 39158 X-GNU-PR-Package: emacs Original-Received: via spool by 39158-submit@debbugs.gnu.org id=B39158.157928318624255 (code B ref 39158); Fri, 17 Jan 2020 17:47:01 +0000 Original-Received: (at 39158) by debbugs.gnu.org; 17 Jan 2020 17:46:26 +0000 Original-Received: from localhost ([127.0.0.1]:40062 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1isVhN-0006J0-HA for submit@debbugs.gnu.org; Fri, 17 Jan 2020 12:46:25 -0500 Original-Received: from mail-qk1-f175.google.com ([209.85.222.175]:40358) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1isVhB-0006IY-Jh; Fri, 17 Jan 2020 12:46:15 -0500 Original-Received: by mail-qk1-f175.google.com with SMTP id c17so23460623qkg.7; Fri, 17 Jan 2020 09:46:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version; bh=dIYkJPLdbdX7fS3Goe6pitCDgHl58emLfcxLmRJ1WH0=; b=k7k6LYOOBweuo+efF2voGL4kHG+WrYp0Wne1yYMQq78mnSUa2ZWFhzu+vRWETv/jeM lY8utujV/pJXT+XuJZ2154+DvWlfVXqLsXYQpgv7uUzTNUaNjRbN6mGqfA7wKH6/pm3F nCBt+9SQxBFfZyQhrnQob5rrPXsUs5wn3s5zeM+aw0ebZCb0BWIzXlmiNz7NCEZWmwv9 NjmpHHvfb/teAFLPzRQP88mfmglmhSOmre12hCINwBdFCv9iLyxwusColiHH4AyE0G6r bg4HGQWwCEakoAEVZSPk+l8fN/LF2VozyR2JF3lMIKdArXPt5STC9YEnkTbCOW6FBu3D I4Eg== 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:date:in-reply-to :message-id:user-agent:mime-version; bh=dIYkJPLdbdX7fS3Goe6pitCDgHl58emLfcxLmRJ1WH0=; b=VzfncGZPrUTgFiYWBsZOE3ZSfvxYIO3fhfb0kkQs9e8i1w+1TSbSY373I+DAVSFjOM vyehri1pr7afC8eplFGEgJsA9NSHe7WAEuUdnkJHtCc1e0S2GHIdpAvzkKbr8Og3Onpy zg5IhhrwfxQirRKwCwQcHkRN7awku4X2LUhkkql+Lt+oZ0UGH4u8BkXRzUbIagL2uRBj PmHGlvQgMPon9d2DObRVwigp9+wjDQeAfa5VTQVK4uyGlXv9+HGgy6+RR1MaZNmLY+BF BOPyUZwEvNBt8KFsih5viB/FjrOw1tOmY0kpSvFhOcqV2Szk13/u0jLSS3TxrweXWgJu cUjA== X-Gm-Message-State: APjAAAXIH4oIX2uLLTd9zDrtACXeUW8rq7y8AFndI5lloSh1rwWFqioD rgKC9b9lR9g9aURUjViZCJgpShU2 X-Google-Smtp-Source: APXvYqyhc2BzS0AKhaysHECw6qYnWztQhYJ8/x/s6zr6d6CGQ05FaVDgX5piG7FvMzPD/HEcoPqdrA== X-Received: by 2002:a05:620a:13e7:: with SMTP id h7mr40237004qkl.235.1579283163895; Fri, 17 Jan 2020 09:46:03 -0800 (PST) Original-Received: from vhost2 (CPE001143542e1f-CMf81d0f809fa0.cpe.net.cable.rogers.com. [99.230.38.42]) by smtp.gmail.com with ESMTPSA id s26sm12373010qkj.24.2020.01.17.09.46.02 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 17 Jan 2020 09:46:03 -0800 (PST) In-Reply-To: (Ernesto Alfonso's message of "Thu, 16 Jan 2020 17:04:06 -0800") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:174760 Archived-At: unarchive 34341 forcemerge 34341 39158 quit Ernesto Alfonso writes: > url-retrieve-synchronously unexpectedly returns an empty buffer: > > emacs -Q --eval '(with-current-buffer (url-retrieve-synchronously " > https://google.com") (print (buffer-string)))' --batch > Contacting host: google.com:443 > > "" > > If I add (sit-for 2) in url-retrieve-synchronously after the (url-retrieve > ...) call: > > (setq asynch-buffer > (url-retrieve url (lambda (&rest ignored) > (url-debug 'retrieval "Synchronous fetching done (%S)" > (current-buffer)) > (setq retrieval-done t > asynch-buffer (current-buffer))) > nil silent inhibit-cookies)) > (sit-for 2) > > then I see the expected output. > > > In GNU Emacs 26.1 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.5) Looks like Bug#34341, try upgrading to 26.3, or put (setq gnutls-algorithm-priority "NORMAL:-VERS-TLS1.3") in your init file as a temporary workaround.