From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Tino Calancha Newsgroups: gmane.emacs.bugs Subject: bug#25247: 26.0.50; Concurrency crashes with XLib Date: Fri, 30 Dec 2016 12:13:02 +0900 Message-ID: <87poka2jpd.fsf@gmail.com> References: <87bmw4w9i2.fsf@gmail.com> <83a8bn27qn.fsf@gnu.org> <87h95vmi7b.fsf@gmail.com> <83wperyrgj.fsf@gnu.org> <878tr651a9.fsf@gmail.com> <83mvfmzq9n.fsf@gnu.org> <87shp7j790.fsf_-_@gmail.com> <83tw9mtyt3.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1483067655 26515 195.159.176.226 (30 Dec 2016 03:14:15 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 30 Dec 2016 03:14:15 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) Cc: raeburn@raeburn.org, 25247@debbugs.gnu.org, tino.calancha@gmail.com To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Dec 30 04:14:11 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1cMndw-00069E-Gs for geb-bug-gnu-emacs@m.gmane.org; Fri, 30 Dec 2016 04:14:08 +0100 Original-Received: from localhost ([::1]:38179 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cMne1-0001WR-4T for geb-bug-gnu-emacs@m.gmane.org; Thu, 29 Dec 2016 22:14:13 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:33495) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cMndt-0001WL-Uy for bug-gnu-emacs@gnu.org; Thu, 29 Dec 2016 22:14:07 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cMndq-0006nX-OY for bug-gnu-emacs@gnu.org; Thu, 29 Dec 2016 22:14:05 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:44087) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cMndq-0006nI-LK for bug-gnu-emacs@gnu.org; Thu, 29 Dec 2016 22:14:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1cMndq-00070I-7j for bug-gnu-emacs@gnu.org; Thu, 29 Dec 2016 22:14:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Tino Calancha Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 30 Dec 2016 03:14:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 25247 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 25247-submit@debbugs.gnu.org id=B25247.148306759626856 (code B ref 25247); Fri, 30 Dec 2016 03:14:02 +0000 Original-Received: (at 25247) by debbugs.gnu.org; 30 Dec 2016 03:13:16 +0000 Original-Received: from localhost ([127.0.0.1]:59486 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cMnd5-0006z6-S6 for submit@debbugs.gnu.org; Thu, 29 Dec 2016 22:13:16 -0500 Original-Received: from mail-pg0-f65.google.com ([74.125.83.65]:36064) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cMnd3-0006ys-OQ for 25247@debbugs.gnu.org; Thu, 29 Dec 2016 22:13:14 -0500 Original-Received: by mail-pg0-f65.google.com with SMTP id n5so20684802pgh.3 for <25247@debbugs.gnu.org>; Thu, 29 Dec 2016 19:13:13 -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=rBNy2f55BbvdTKjSlQBUpFYclsyMDtKeLQiO7ChIlpM=; b=p6ttLFhIdVmy5lRz9rC7YHTJogocfiLpU3GAM/bTWDdYy1PTPfu5xiNUnIRky69s9G N/BU1scXmjnu8+wOLVO0wlqMnHdo4CTsMqpUK3mjbGmDu3Do0gGTla+aFgasd9KT6v9b idpqLiAlH5aYndaXSKXRMfknb2i4/hdmiVOoaDDOONdlxGSOtnST1J0UkMf8qkgqXtOp pqNXVBT3OcNasS3DMZzYTLqjd9YAG91x9BqbqDP/a6WVYyIOVvKhw8ACyluMrge7mmjn mjY6ehLU5GZozREUPog4N9Xnyo0Z515WCIG2JDnEFmbQ//fgKTyFwJFFKCnSaBQR+yCo VYZA== 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=rBNy2f55BbvdTKjSlQBUpFYclsyMDtKeLQiO7ChIlpM=; b=jIg+gZS9anoveLNrTNHlYJgY0NNW3DoIImkyX7jvCZHq4uM29vJ8lUL/+yDIa65k02 s/GgKOx26GnaiEw8jee+iFXezMEkbNO7MyN7Zq2HGnTSxUCBcjmChSzCqvFKekVbh7bS MsF4w6fPQWBvCjTJJ0mArsU/C8/BdZyO+Epco+pc4r7DRlTXCPJBrlhSyhI+oyRUKjkO IeRNhRn6zSXVNIiQ3JihMniI69bKH+3a93exfujZSWPAi6WC7WO8GeoGnUwHDxtw3UHY 6hngmmezBWZKuj9iWZ5DdDs05pmAXFcacC7TFbasjie2WNCy70w1jkrukt+LeaIPRWDn /0dA== X-Gm-Message-State: AIkVDXKVS8hDFmchjKAwjCNGjeCiHyEQz/2V1zAbtmBcfK3nG3ybzABITH2YmNe4GUpTfw== X-Received: by 10.84.210.38 with SMTP id z35mr79071719plh.111.1483067587912; Thu, 29 Dec 2016 19:13:07 -0800 (PST) Original-Received: from calancha-pc (217.225.128.101.dy.bbexcite.jp. [101.128.225.217]) by smtp.gmail.com with ESMTPSA id u3sm107945914pfk.3.2016.12.29.19.13.06 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 29 Dec 2016 19:13:07 -0800 (PST) In-Reply-To: <83tw9mtyt3.fsf@gnu.org> (Eli Zaretskii's message of "Thu, 29 Dec 2016 19:44:40 +0200") 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: 208.118.235.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:127567 Archived-At: Eli Zaretskii writes: >> From: Tino Calancha >> Cc: raeburn@raeburn.org, 25247@debbugs.gnu.org, tino.calancha@gmail.com >> Date: Thu, 29 Dec 2016 20:37:47 +0900 >> >> It's worth to note that in _any_ case i've seen more than 1 thread with >> context_acquired = true. > > You mean, in no case, right? Exactly: i have never seen more than 1 thread with context_acquired = true >> Thread 10 (Thread 0x7fffdd151700 (LWP 27549)): >> #0 raise (sig=6) at ../sysdeps/unix/sysv/linux/raise.c:58 >> set = {__val = {402653184, 0, 18446744073709551615, >> 18446744073709551615, 0, 0, 18446744073709551615, >> 18446744073709551615, 0, 0, 0, 0, 0, 0, 30768, 140737251463819}} >> pid = >> tid = >> #1 0x000000000058f90f in terminate_due_to_signal (sig=6, backtrace_limit=40) at emacs.c:395 >> No locals. >> #2 0x00000000005bdf0e in emacs_abort () at sysdep.c:2364 >> No locals. >> #3 0x00000000005a3a38 in unblock_input_to (level=-1) at keyboard.c:7170 >> No locals. >> #4 0x00000000005a3a4f in unblock_input () at keyboard.c:7186 >> No locals. >> #5 0x0000000000552f34 in XTread_socket (terminal=0x1371e40 >> , hold_quit=0x7fffdd14fa80) at xterm.c:8943 >> count = 0 >> event_found = false >> dpyinfo = 0x2f5ad40 >> #6 0x00000000005a343d in gobble_input () at keyboard.c:6883 >> nr = 0 >> hold_quit = {kind = NO_EVENT, part = scroll_bar_nowhere, >> code = 0, modifiers = 0, x = {i = 0}, y = {i = 0}, timestamp = 0, >> frame_or_window = {i = 0}, arg = {i = 0}} >> next = 0x0 >> nread = 0 >> err = false >> t = 0x1371e40 >> #7 0x00000000005a39cc in handle_async_input () at keyboard.c:7138 >> nread = 0 >> #8 0x00000000005a39eb in process_pending_signals () at keyboard.c:7152 >> No locals. >> #9 0x00000000005a3a2b in unblock_input_to (level=0) at keyboard.c:7167 >> No locals. >> #10 0x00000000005a3a4f in unblock_input () at keyboard.c:7186 >> No locals. >> #11 0x000000000070c8f3 in xg_select (fds_lim=14, >> rfds=0x7fffdd150580, wfds=0x7fffdd150500, efds=0x0, >> timeout=0x7fffdd1504e0, sigmask=0x0) at xgselect.c:162 > > This is weird. It seems some other thread called unblock_input while > this thread was in process_pending_signals. Not sure how that could > happen. That is my favourite crash: it happens just right after start the session. It's _very_ unlikely to happen. OTHO the other crashes are quite easy to reproduce in my box.