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 Date: Thu, 22 Dec 2016 19:20:21 +0900 Message-ID: <87bmw4w9i2.fsf@gmail.com> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1482402088 32146 195.159.176.226 (22 Dec 2016 10:21:28 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 22 Dec 2016 10:21:28 +0000 (UTC) To: 25247@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Dec 22 11:21:23 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 1cK0Ut-0006oP-6O for geb-bug-gnu-emacs@m.gmane.org; Thu, 22 Dec 2016 11:21:15 +0100 Original-Received: from localhost ([::1]:33141 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cK0Ux-0004uJ-FH for geb-bug-gnu-emacs@m.gmane.org; Thu, 22 Dec 2016 05:21:19 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:59094) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cK0Ul-0004ry-Uv for bug-gnu-emacs@gnu.org; Thu, 22 Dec 2016 05:21:10 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cK0Ug-0000Ts-Rj for bug-gnu-emacs@gnu.org; Thu, 22 Dec 2016 05:21:07 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:35511) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cK0Ug-0000Ti-NU for bug-gnu-emacs@gnu.org; Thu, 22 Dec 2016 05:21:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1cK0Ug-0004Oh-Gk for bug-gnu-emacs@gnu.org; Thu, 22 Dec 2016 05:21:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Tino Calancha Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 22 Dec 2016 10:21:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 25247 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.148240205316864 (code B ref -1); Thu, 22 Dec 2016 10:21:02 +0000 Original-Received: (at submit) by debbugs.gnu.org; 22 Dec 2016 10:20:53 +0000 Original-Received: from localhost ([127.0.0.1]:50910 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cK0UW-0004Nw-RZ for submit@debbugs.gnu.org; Thu, 22 Dec 2016 05:20:53 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:39809) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cK0UV-0004Nh-8n for submit@debbugs.gnu.org; Thu, 22 Dec 2016 05:20:51 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cK0UN-0000Mr-C8 for submit@debbugs.gnu.org; Thu, 22 Dec 2016 05:20:45 -0500 Original-Received: from lists.gnu.org ([2001:4830:134:3::11]:60328) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cK0UN-0000Mn-8H for submit@debbugs.gnu.org; Thu, 22 Dec 2016 05:20:43 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:58995) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cK0UL-0004ck-3O for bug-gnu-emacs@gnu.org; Thu, 22 Dec 2016 05:20:43 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cK0UF-0000Jx-Up for bug-gnu-emacs@gnu.org; Thu, 22 Dec 2016 05:20:41 -0500 Original-Received: from mail-pg0-x235.google.com ([2607:f8b0:400e:c05::235]:33603) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cK0UF-0000Jl-MK for bug-gnu-emacs@gnu.org; Thu, 22 Dec 2016 05:20:35 -0500 Original-Received: by mail-pg0-x235.google.com with SMTP id g1so57152519pgn.0 for ; Thu, 22 Dec 2016 02:20:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:mime-version; bh=xCUBWOnv+dqjXzCMFqn2A0Znx+M9zOddlImMfIrVdgM=; b=m3a5MMUxueRtxDfgz4K+ziSarBFoMlr393b9XXK84twiy8v8w030vaKkTc5I4gbX4t GyQUdVZBzk3fyIFjH8AfVBb9mca8GU07CcKaZ1vdGvfxL4OOSqXaDeiOp7oSLB8LShrR h3xnU4jsLfo3n6p5gyXMoEGoj2NZBlLXGzCzvbbIL11EHIG/asoRqb9E4y/mJcnEPXYO vveTI0iT8SZVTqBibFZOwvI95j1ZI2Tk+a0/OYBj9J0SCuCxWJXVmSCmjPjOqshDnBQh Se/OpHkYa3XWhc/Nju/ylAiobe2IibNB52jgtihRM1JXV0gYDhASBW0n734iMN2x1Xxi E4Ng== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:mime-version; bh=xCUBWOnv+dqjXzCMFqn2A0Znx+M9zOddlImMfIrVdgM=; b=BFpbA7+zRYqPkS/dcF1n7Om8LYXewmD75uOtcIbNzcos4zL8jb/Ort76dp22k1E/XJ lmp8z4TMr/8oo2tKB3vwCFaxeePp8UrLqZZkxxQ+XLvqpYnMyx3NsttIzdu+Y1HpbWaq ocnKB+EgJFe/xgEsGtJ3v8rjhZ4d7xH40mRDWz7K3iCN2m2VLRKjIneMBSl1UxhEzWnT hul/xiPvaErxtoDaRq/c3EA+eZajpy4eXuJszB54pmZwQSDBYOf0yLaQXX5dHEgRV1BT exCqkMadDfk0+aXJBCpOVUlYvNgWgNjiUlduWMsD6RC8HoAOlrgENVT+gGiJcHINpJix mfZQ== X-Gm-Message-State: AIkVDXKICwrj0aHqQpnPqtwa3tP10F6vsMow6LkxlZsz6pCUfEsS5+mGgepHfn+m7Y/cCQ== X-Received: by 10.98.13.90 with SMTP id v87mr2249587pfi.54.1482402034496; Thu, 22 Dec 2016 02:20:34 -0800 (PST) Original-Received: from calancha-pc (177.192.218.133.dy.bbexcite.jp. [133.218.192.177]) by smtp.gmail.com with ESMTPSA id p25sm53457318pfk.20.2016.12.22.02.20.32 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 22 Dec 2016 02:20:33 -0800 (PST) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x 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:127319 Archived-At: 1) Save a file /tmp/test.el with contains: (defun mytest () (dotimes (n 10) (message "[%d] Sleeping ..." n) (sleep-for 0.5)) (message "End!") (sleep-for 1) (message nil)) (defun run-test () (dotimes (_ 50) (make-thread #'mytest)) (message "Number of threads %d" (length (all-threads)))) ;; (run-test) 2) emacs -Q -l /tmp/test.el ;; Evaluate (run-test) in buffer *scratch*; keep using Emacs, for instance, ;; split the window, and visit other buffers, or call (run-test) again: C-x 3 C-x C-b C-o RET ;; Sometimes Emacs crash or hangs. ;; I saw following messages in a few crashes: [xcb] Unknown sequence number while processing queue [xcb] Most likely this is a multi-threaded client and XInitThreads has not been called [xcb] Aborting, sorry about that. emacs: ../../src/xcb_io.c:259: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed. When i see previous message i get the backtrace `bt_xcb' (see below); without the previus message i get a backtrace `bt_no_xcb'. 3) If you uncomment ;; (run-test) in /tmp/test.el and call: emacs -Q -l /tmp/test.el ;; Then Emacs crash 100% of the times. Following is the standard output: alloc.c:4893: Emacs fatal error: assertion failed: ((uintptr_t) start) % GC_POINTER_ALIGNMENT == 0 Fatal error 6: Aborted lisp.h:1592: Emacs fatal error: assertion failed: 0 <= size Following is the backtrace: (gdb) bt #0 raise (sig=6) at ../sysdeps/unix/sysv/linux/raise.c:58 #1 0x000000000058f7da in terminate_due_to_signal (sig=6, backtrace_limit=2147483647) at emacs.c:396 #2 0x00000000006278aa in die (msg=0x75e0fb "0 <= size", file=0x75df80 "lisp.h", line=1592) at alloc.c:7315 #3 0x000000000058a5ee in ASIZE (array=...) at lisp.h:1592 #4 0x000000000065fc8b in hash_lookup (h=0xe78690 , key=..., hash=0x0) at fns.c:4000 #5 0x0000000000505125 in code_convert_string (string=..., coding_system=..., dst_object=..., encodep=false, nocopy=false, norecord=true) at coding.c:9437 #6 0x00000000005053fd in code_convert_string_norecord (string=..., coding_system=..., encodep=false) at coding.c:9479 #7 0x0000000000505475 in decode_file_name (fname=...) at coding.c:9498 #8 0x00000000005e487e in Fexpand_file_name (name=..., default_directory=...) at fileio.c:1094 #9 0x00000000005e4462 in Fexpand_file_name (name=..., default_directory=...) at fileio.c:898 #10 0x00000000005f02d8 in Fdo_auto_save (no_message=..., current_only=...) at fileio.c:5645 #11 0x0000000000591f56 in shut_down_emacs (sig=6, stuff=...) at emacs.c:2072 #12 0x000000000058f781 in terminate_due_to_signal (sig=6, backtrace_limit=2147483647) at emacs.c:379 #13 0x00000000006278aa in die (msg=0x76d3a8 "((uintptr_t) start) % GC_POINTER_ALIGNMENT == 0", file=0x76cb30 "alloc.c", line=4893) at alloc.c:7315 #14 0x0000000000622c81 in mark_memory (start=0x7fffbda63b17, end=0x7fffbda63b17) at alloc.c:4893 #15 0x0000000000622cdb in mark_stack (bottom=0x7fffbda63b17 "", end=0x7fffbda63b17 "") at alloc.c:5058 #16 0x00000000006e02f1 in mark_one_thread (thread=0x161bd60 ) at thread.c:558 #17 0x00000000006e0486 in mark_threads_callback (ignore=0x0) at thread.c:589 #18 0x0000000000622d23 in flush_stack_call_func (func=0x6e03f3 , arg=0x0) at alloc.c:5137 #19 0x00000000006e04b8 in mark_threads () at thread.c:596 #20 0x00000000006249a8 in garbage_collect_1 (end=0x7fffffff1208) at alloc.c:5849 #21 0x000000000062508a in Fgarbage_collect () at alloc.c:6068 #22 0x000000000058c9d4 in maybe_gc () at lisp.h:4793 #23 0x000000000064d884 in Ffuncall (nargs=2, args=0x7fffffff1350) at eval.c:2739 #24 0x0000000000649c88 in internal_condition_case_n (bfun=0x64d78d , nargs=2, args=0x7fffffff1350, handlers=..., hfun=0x449ac4 ) at eval.c:1416 #25 0x0000000000449d39 in safe__call (inhibit_quit=false, nargs=2, func=..., ap=0x7fffffff1418) at xdisp.c:2567 #26 0x0000000000449e2c in safe_call (nargs=2, func=...) at xdisp.c:2583 #27 0x0000000000449e66 in safe_call1 (fn=..., arg=...) at xdisp.c:2594 #28 0x00000000005b11a8 in map_keymap_canonical (map=..., fun=0x4b30a1 , args=..., data=0x7fffffff15c0) at keymap.c:639 #29 0x00000000004b2f24 in single_keymap_panes (keymap=..., pane_name=..., prefix=..., maxdepth=7) at menu.c:294 #30 0x00000000004b372d in single_menu_item (key=..., item=..., dummy=..., skp_v=0x7fffffff18b0) at menu.c:433 #31 0x00000000005b0b43 in map_keymap_item (fun=0x4b30a1 , args=..., key=..., val=..., data=0x7fffffff18b0) at keymap.c:546 #32 0x00000000005b0e3c in map_keymap_internal (map=..., fun=0x4b30a1 , args=..., data=0x7fffffff18b0) at keymap.c:583 #33 0x00000000005b11c4 in map_keymap_canonical (map=..., fun=0x4b30a1 , args=..., data=0x7fffffff18b0) at keymap.c:641 #34 0x00000000004b2f24 in single_keymap_panes (keymap=..., pane_name=..., prefix=..., maxdepth=8) at menu.c:294 #35 0x00000000004b372d in single_menu_item (key=..., item=..., dummy=..., skp_v=0x7fffffff1ba0) at menu.c:433 #36 0x00000000005b0b43 in map_keymap_item (fun=0x4b30a1 , args=..., key=..., val=..., data=0x7fffffff1ba0) at keymap.c:546 #37 0x00000000005b0e3c in map_keymap_internal (map=..., fun=0x4b30a1 , args=..., data=0x7fffffff1ba0) at keymap.c:583 #38 0x00000000005b11c4 in map_keymap_canonical (map=..., fun=0x4b30a1 , args=..., data=0x7fffffff1ba0) at keymap.c:641 #39 0x00000000004b2f24 in single_keymap_panes (keymap=..., pane_name=..., prefix=..., maxdepth=9) at menu.c:294 #40 0x00000000004b372d in single_menu_item (key=..., item=..., dummy=..., skp_v=0x7fffffff1e90) at menu.c:433 #41 0x00000000005b0b43 in map_keymap_item (fun=0x4b30a1 , args=..., key=..., val=..., data=0x7fffffff1e90) at keymap.c:546 #42 0x00000000005b0e3c in map_keymap_internal (map=..., fun=0x4b30a1 , args=..., data=0x7fffffff1e90) at keymap.c:583 #43 0x00000000005b11c4 in map_keymap_canonical (map=..., fun=0x4b30a1 , args=..., data=0x7fffffff1e90) at keymap.c:641 #44 0x00000000004b2f24 in single_keymap_panes (keymap=..., pane_name=..., prefix=..., maxdepth=10) at menu.c:294 #45 0x00000000004b3ed6 in parse_single_submenu (item_key=..., item_name=..., maps=...) at menu.c:562 #46 0x00000000004b7312 in set_frame_menubar (f=0x145ac30 , first_time=false, deep_p=true) at xmenu.c:787 #47 0x000000000046947f in update_menu_bar (f=0x145ac30 , save_match_data=false, hooks_run=true) at xdisp.c:12011 #48 0x0000000000469042 in prepare_menu_bars () at xdisp.c:11901 #49 0x000000000046bd89 in redisplay_internal () at xdisp.c:13661 #50 0x000000000046a88b in redisplay () at xdisp.c:13268 #51 0x00000000005980ef in read_char (commandflag=1, map=..., prev_event=..., used_mouse_menu=0x7fffffffe0bf, end_time=0x0) at keyboard.c:2485 #52 0x00000000005a916a in read_key_sequence (keybuf=0x7fffffffe250, bufsize=30, prompt=..., dont_downcase_last=false, can_return_switch_frame=true, fix_current_buffer=true, prevent_redisplay=false) at keyboard.c:9139 #53 0x0000000000594aff in command_loop_1 () at keyboard.c:1373 #54 0x0000000000649a60 in internal_condition_case (bfun=0x5946b3 , handlers=..., hfun=0x593cf6 ) at eval.c:1336 #55 0x00000000005942ce in command_loop_2 (ignore=...) at keyboard.c:1115 #56 0x0000000000648f69 in internal_catch (tag=..., func=0x5942a1 , arg=...) at eval.c:1101 #57 0x000000000059426c in command_loop () at keyboard.c:1094 #58 0x00000000005937e0 in recursive_edit_1 () at keyboard.c:700 #59 0x00000000005939d5 in Frecursive_edit () at keyboard.c:771 #60 0x000000000059153c in main (argc=5, argv=0x7fffffffe728) at emacs.c:1691 *) Following is the backtrace `bt_xcb' (gdb) bt #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:58 #1 0x00007fffefa9940a in __GI_abort () at abort.c:89 #2 0x00007fffefa90e47 in __assert_fail_base (fmt=, assertion=assertion@entry=0x7ffff493fc00 "!xcb_xlib_threads_sequence_lost", file=file@entry=0x7ffff493fa6b "../../src/xcb_io.c", line=line@entry=259, function=function@entry=0x7ffff493fea8 "poll_for_event") at assert.c:92 #3 0x00007fffefa90ef2 in __GI___assert_fail (assertion=0x7ffff493fc00 "!xcb_xlib_threads_sequence_lost", file=0x7ffff493fa6b "../../src/xcb_io.c", line=259, function=0x7ffff493fea8 "poll_for_event") at assert.c:101 #4 0x00007ffff48cd77a in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6 #5 0x00007ffff48cd82b in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6 #6 0x00007ffff48cdb1d in _XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6 #7 0x00007ffff48af58a in XFlush () from /usr/lib/x86_64-linux-gnu/libX11.so.6 #8 0x0000000000541ff2 in x_flush (f=0x145ac30 ) at xterm.c:257 #9 0x0000000000543111 in x_flip_and_flush (f=0x145ac30 ) at xterm.c:1217 #10 0x000000000058e269 in flush_frame (f=0x145ac30 ) at frame.h:1481 #11 0x0000000000467d3a in echo_area_display (update_frame_p=true) at xdisp.c:11435 #12 0x0000000000464e43 in message3_nolog (m=...) at xdisp.c:10413 #13 0x0000000000464af1 in message3 (m=...) at xdisp.c:10342 #14 0x000000000063e868 in Fmessage (nargs=2, args=0x7fff3b015360) at editfns.c:3767 #15 0x000000000064c009 in eval_sub (form=...) at eval.c:2204 #16 0x0000000000646be7 in Fprogn (body=...) at eval.c:450 #17 0x0000000000648b79 in Fwhile (args=...) at eval.c:992 #18 0x000000000064bdf7 in eval_sub (form=...) at eval.c:2186 #19 0x0000000000646be7 in Fprogn (body=...) at eval.c:450 #20 0x0000000000648a5b in Flet (args=...) at eval.c:973 #21 0x000000000064bdf7 in eval_sub (form=...) at eval.c:2186 #22 0x0000000000646be7 in Fprogn (body=...) at eval.c:450 #23 0x000000000064ea54 in funcall_lambda (fun=..., nargs=0, arg_vector=0x0) at eval.c:3028 #24 0x000000000064dab1 in Ffuncall (nargs=1, args=0x14f4c50 ) at eval.c:2771 #25 0x00000000006e057f in invoke_thread_function () at thread.c:634 #26 0x0000000000649a60 in internal_condition_case (bfun=0x6e0557 , handlers=..., hfun=0x6e059e ) at eval.c:1336 #27 0x00000000006e06cb in run_thread (state=0x14f4c30 ) at thread.c:668 #28 0x00007ffff0455464 in start_thread (arg=0x7fff3b016700) at pthread_create.c:333 #29 0x00007fffefb4d9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 *) Following is the backtrace `bt_no_xcb': (gdb) bt #0 raise (sig=6) at ../sysdeps/unix/sysv/linux/raise.c:58 #1 0x000000000058f7da in terminate_due_to_signal (sig=6, backtrace_limit=40) at emacs.c:396 #2 0x00000000005bddd9 in emacs_abort () at sysdep.c:2364 #3 0x00000000005a3903 in unblock_input_to (level=-1) at keyboard.c:7170 #4 0x00000000005a391a in unblock_input () at keyboard.c:7186 #5 0x00000000006ef5b0 in xftfont_text_extents (font=0x1466e40 , code=0x7fffd37a676c, nglyphs=1, metrics=0xd8b088 ) at xftfont.c:568 #6 0x0000000000499c33 in get_per_char_metric (font=0x1466e40 , char2b=0x7fffd37a6810) at xdisp.c:25141 #7 0x00000000004a2db3 in x_produce_glyphs (it=0x7fffd37a7df0) at xdisp.c:27160 #8 0x0000000000489b2d in display_line (it=0x7fffd37a7df0) at xdisp.c:20798 #9 0x000000000047b092 in try_window (window=..., pos=..., flags=1) at xdisp.c:17376 #10 0x0000000000477577 in redisplay_window (window=..., just_this_one_p=false) at xdisp.c:16813 #11 0x000000000046e560 in redisplay_window_0 (window=...) at xdisp.c:14554 #12 0x0000000000649b0e in internal_condition_case_1 (bfun=0x46e51e , arg=..., handlers=..., hfun=0x46e4e6 ) at eval.c:1360 #13 0x000000000046e4bb in redisplay_windows (window=...) at xdisp.c:14534 #14 0x000000000046e46d in redisplay_windows (window=...) at xdisp.c:14528 #15 0x000000000046cf51 in redisplay_internal () at xdisp.c:14023 #16 0x000000000046dbb6 in redisplay_preserve_echo_area (from_where=2) at xdisp.c:14353 #17 0x000000000042857b in Fredisplay (force=...) at dispnew.c:5792 #18 0x000000000064de3d in funcall_subr (subr=0x9d0580 , numargs=0, args=0x7fffd37ad008) at eval.c:2832 #19 0x000000000064d977 in Ffuncall (nargs=1, args=0x7fffd37ad000) at eval.c:2757 #20 0x000000000069ed31 in exec_byte_code (bytestr=..., vector=..., maxdepth=..., args_template=..., nargs=1, args=0x7fffd37ad708) at bytecode.c:726 #21 0x000000000064e5ca in funcall_lambda (fun=..., nargs=1, arg_vector=0x7fffd37ad700) at eval.c:2957 #22 0x000000000064e1e7 in apply_lambda (fun=..., args=..., count=1) at eval.c:2894 #23 0x000000000064c3cd in eval_sub (form=...) at eval.c:2278 #24 0x0000000000646be7 in Fprogn (body=...) at eval.c:450 #25 0x000000000064ea54 in funcall_lambda (fun=..., nargs=0, arg_vector=0x0) at eval.c:3028 #26 0x000000000064dab1 in Ffuncall (nargs=1, args=0x15c2eb8 ) at eval.c:2771 #27 0x00000000006e057f in invoke_thread_function () at thread.c:634 #28 0x0000000000649a60 in internal_condition_case (bfun=0x6e0557 , handlers=..., hfun=0x6e059e ) at eval.c:1336 #29 0x00000000006e06cb in run_thread (state=0x15c2e98 ) at thread.c:668 #30 0x00007ffff0455464 in start_thread (arg=0x7fffd37ae700) at pthread_create.c:333 #31 0x00007fffefb4d9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 (gdb) ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; In GNU Emacs 26.0.50.1 (x86_64-pc-linux-gnu, GTK+ Version 3.22.5) of 2016-12-22 built on calancha-pc Repository revision: 3ec1503374d3115651c130eaeee31181266d0863 Windowing system distributor 'The X.Org Foundation', version 11.0.11900000 System Description: Debian GNU/Linux testing (stretch) Configured using: 'configure --enable-checking=yes,glyphs --enable-check-lisp-object-type 'CFLAGS=-O0 -g3'' Configured features: XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 LIBSYSTEMD