From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Alan Third Newsgroups: gmane.emacs.bugs Subject: bug#45658: Infinite loop in run loop on macOS Date: Wed, 6 Jan 2021 18:53:41 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="23592"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 45658@debbugs.gnu.org To: Jimmy Yuen Ho Wong Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Jan 06 19:56:21 2021 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 1kxDyn-00062P-83 for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 06 Jan 2021 19:56:21 +0100 Original-Received: from localhost ([::1]:51172 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kxDym-0000Ey-7S for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 06 Jan 2021 13:56:20 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:58812) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kxDwY-0006Xv-NG for bug-gnu-emacs@gnu.org; Wed, 06 Jan 2021 13:54:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:34009) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kxDwY-0007GI-EF for bug-gnu-emacs@gnu.org; Wed, 06 Jan 2021 13:54:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kxDwY-00007o-5v for bug-gnu-emacs@gnu.org; Wed, 06 Jan 2021 13:54:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Alan Third Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 06 Jan 2021 18:54:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 45658 X-GNU-PR-Package: emacs Original-Received: via spool by 45658-submit@debbugs.gnu.org id=B45658.1609959234463 (code B ref 45658); Wed, 06 Jan 2021 18:54:02 +0000 Original-Received: (at 45658) by debbugs.gnu.org; 6 Jan 2021 18:53:54 +0000 Original-Received: from localhost ([127.0.0.1]:45555 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kxDwQ-00007P-Cp for submit@debbugs.gnu.org; Wed, 06 Jan 2021 13:53:54 -0500 Original-Received: from outbound.soverin.net ([116.202.65.218]:33961) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kxDwM-000077-NA for 45658@debbugs.gnu.org; Wed, 06 Jan 2021 13:53:52 -0500 Original-Received: from smtp.soverin.net (unknown [10.10.3.24]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by outbound.soverin.net (Postfix) with ESMTPS id 348636020F for <45658@debbugs.gnu.org>; Wed, 6 Jan 2021 18:53:44 +0000 (UTC) Original-Received: from smtp.soverin.net (smtp.soverin.net [159.69.232.138]) by soverin.net DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=idiocy.org; s=soverin; t=1609959223; bh=S82XBMX9JnGK2Gf84JVhRyzuKppuHrCQltstnkduQCw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=TYks4F6yc3r35DR9/q38mYNuDjqYTqPGCawh7EJMw9lyuZGTJyYWl561iBORZh+5F z1J1kd5jiNZKEWCgtWm0UuKEirQVYdGZ4TH/Zb7ZltaC43mGY/KqrAGsHT/sUU/nzs 5VABWRaaJwX1hEA4/wepzwN/Vhx8mbiPZ/mxSwfmF4DrAMEmweph7cTp5QTkEuCWzv cGs/d9gLhbiGYH6/ErRrqsyzk0SsS14VCOmqThDgfAoUMFpOsxj6x3cAnVEWLzV93c 7oWykP/9n1s9qDYVtTjVGSmcOXdY0OBujYmXp+9luOnn8b6qacZlPHO2hrvCuj0LlF EsmZlU1lEgJRw== Original-Received: by breton.holly.idiocy.org (Postfix, from userid 501) id 342A32029A1DF4; Wed, 6 Jan 2021 18:53:41 +0000 (GMT) Mail-Followup-To: Alan Third , Jimmy Yuen Ho Wong , 45658@debbugs.gnu.org Content-Disposition: inline In-Reply-To: X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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:197447 Archived-At: On Wed, Jan 06, 2021 at 07:04:37AM +0000, Jimmy Yuen Ho Wong wrote: > > Is this still mostly when you switch away from Emacs? > > Yes. I'm on Catalina and here's my configure flags if that helps: > > "--disable-silent-rules --prefix=/opt/local --with-ns --with-libgmp > --with-json --with-xml2 --with-modules --with-lcms2 --with-rsvg > --with-gnutls 'CFLAGS=-pipe -O0 -ggdb3 > -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk > -arch x86_64' 'CPPFLAGS=-I/opt/local/include > -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk' > 'LDFLAGS=-L/opt/local/lib -Wl,-headerpad_max_install_names -Wl,-no_pie > -Wl,-syslibroot,/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk > -arch x86_64'" > > > Can you do "bt all" and send the whole output? Thanks. I've raised a bug report for this. Unfortunately I can't see what's causing this just now... My best guess is that there's a missed ns_send_appdefined somewhere. Can you switch to the thread that's running fd_handler and see what it's doing? There are only two branches, so it should be easy to work out which one is in use. > (lldb) bt all > > * thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP > * frame #0: 0x00007fff6a0ccdfa libsystem_kernel.dylib`mach_msg_trap + 10 > frame #1: 0x00007fff6a0cd1fd libsystem_kernel.dylib`mach_msg + 201 > frame #2: 0x00007fff2fedbef5 CoreFoundation`__CFRunLoopServiceMachPort + 247 > frame #3: 0x00007fff2feda9c2 CoreFoundation`__CFRunLoopRun + 1319 > frame #4: 0x00007fff2fed9e3e CoreFoundation`CFRunLoopRunSpecific + 462 > frame #5: 0x00007fff2eb06abd HIToolbox`RunCurrentEventLoopInMode + 292 > frame #6: 0x00007fff2eb067d5 HIToolbox`ReceiveNextEventCommon + 584 > frame #7: 0x00007fff2eb06579 > HIToolbox`_BlockUntilNextEventMatchingListInModeWithFilter + 64 > frame #8: 0x00007fff2d14c039 AppKit`_DPSNextEvent + 883 > frame #9: 0x00007fff2d14a880 AppKit`-[NSApplication(NSEvent) > _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1352 > frame #10: 0x00007fff2d13c58e AppKit`-[NSApplication run] + 658 > frame #11: 0x000000010036c5fa Emacs`-[EmacsApp > run](self=0x000000010525e180, _cmd="run") at nsterm.m:5602:9 > frame #12: 0x000000010036a8eb Emacs`ns_select(nfds=30, > readfds=0x00007ffeefbfd1f0, writefds=0x00007ffeefbfd170, > exceptfds=0x0000000000000000, timeout=0x00007ffeefbfd148, > sigmask=0x0000000000000000) at nsterm.m:4690:3 > frame #13: 0x00000001002f567a > Emacs`wait_reading_process_output(time_limit=10, nsecs=0, read_kbd=-1, > do_display=true, wait_for_cell=0x0000000000000000, > wait_proc=0x0000000000000000, just_wait_proc=0) at process.c:5577:18 > frame #14: 0x0000000100010bfe > Emacs`sit_for(timeout=0x000000000000002a, reading=true, > display_option=1) at dispnew.c:6064:3 > frame #15: 0x0000000100173432 Emacs`read_char(commandflag=1, > map=0x00000001de6881f3, prev_event=0x0000000000000000, > used_mouse_menu=0x00007ffeefbfdddf, end_time=0x0000000000000000) at > keyboard.c:2738:11 > frame #16: 0x000000010016e569 > Emacs`read_key_sequence(keybuf=0x00007ffeefbfe0e0, > prompt=0x0000000000000000, dont_downcase_last=false, > can_return_switch_frame=true, fix_current_buffer=true, > prevent_redisplay=false) at keyboard.c:9554:12 > frame #17: 0x000000010016cf89 Emacs`command_loop_1 at keyboard.c:1350:15 > frame #18: 0x0000000100269a9f > Emacs`internal_condition_case(bfun=(Emacs`command_loop_1 at > keyboard.c:1236), handlers=0x0000000000000090, hfun=(Emacs`cmd_error > at keyboard.c:919)) at eval.c:1356:25 > frame #19: 0x0000000100184cdc > Emacs`command_loop_2(ignore=0x0000000000000000) at keyboard.c:1091:11 > frame #20: 0x000000010026940a > Emacs`internal_catch(tag=0x000000000000c840, > func=(Emacs`command_loop_2 at keyboard.c:1087), > arg=0x0000000000000000) at eval.c:1117:25 > frame #21: 0x000000010016bf1a Emacs`command_loop at keyboard.c:1070:2 > frame #22: 0x000000010016bda0 Emacs`recursive_edit_1 at keyboard.c:714:9 > frame #23: 0x000000010016c0e9 Emacs`Frecursive_edit at keyboard.c:786:3 > frame #24: 0x00000001001695b4 Emacs`main(argc=1, > argv=0x00007ffeefbfe690) at emacs.c:2066:3 > frame #25: 0x00007fff69f8bcc9 libdyld.dylib`start + 1 > thread #4, name = 'gmain' > frame #0: 0x00007fff6a0d50fe libsystem_kernel.dylib`__select + 10 > frame #1: 0x0000000102045174 libglib-2.0.0.dylib`g_poll + 546 > frame #2: 0x0000000102038f63 > libglib-2.0.0.dylib`g_main_context_iterate + 340 > frame #3: 0x0000000102039011 > libglib-2.0.0.dylib`g_main_context_iteration + 55 > frame #4: 0x000000010203a0c1 libglib-2.0.0.dylib`glib_worker_main + 30 > frame #5: 0x000000010205a844 libglib-2.0.0.dylib`g_thread_proxy + 90 > frame #6: 0x00007fff6a190109 libsystem_pthread.dylib`_pthread_start + 148 > frame #7: 0x00007fff6a18bb8b libsystem_pthread.dylib`thread_start + 15 > thread #7 > frame #0: 0x00007fff6a0d187e libsystem_kernel.dylib`__pselect + 10 > frame #1: 0x00007fff6a0d179b > libsystem_kernel.dylib`pselect$DARWIN_EXTSN + 42 > frame #2: 0x000000010036def3 Emacs`-[EmacsApp > fd_handler:](self=0x000000010525e180, _cmd="fd_handler:", > unused=0x0000000000000000) at nsterm.m:6100:20 > frame #3: 0x00007fff3256d7b2 Foundation`__NSThread__start__ + 1064 > frame #4: 0x00007fff6a190109 libsystem_pthread.dylib`_pthread_start + 148 > frame #5: 0x00007fff6a18bb8b libsystem_pthread.dylib`thread_start + 15 > thread #11, name = 'com.apple.NSEventThread' > frame #0: 0x00007fff6a0ccdfa libsystem_kernel.dylib`mach_msg_trap + 10 > frame #1: 0x00007fff6a0cd170 libsystem_kernel.dylib`mach_msg + 60 > frame #2: 0x00007fff2fedbef5 CoreFoundation`__CFRunLoopServiceMachPort + 247 > frame #3: 0x00007fff2feda9c2 CoreFoundation`__CFRunLoopRun + 1319 > frame #4: 0x00007fff2fed9e3e CoreFoundation`CFRunLoopRunSpecific + 462 > frame #5: 0x00007fff2d2ed954 AppKit`_NSEventThread + 132 > frame #6: 0x00007fff6a190109 libsystem_pthread.dylib`_pthread_start + 148 > frame #7: 0x00007fff6a18bb8b libsystem_pthread.dylib`thread_start + 15 > thread #127 > frame #0: 0x00007fff6a0ce4ce libsystem_kernel.dylib`__workq_kernreturn + 10 > frame #1: 0x00007fff6a18caa1 libsystem_pthread.dylib`_pthread_wqthread + 390 > frame #2: 0x00007fff6a18bb77 libsystem_pthread.dylib`start_wqthread + 15 -- Alan Third