From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#21380: 25.0.50; GTK-induced segfault when scheduling timer from window-configuration-change-hook Date: Sun, 30 Aug 2015 18:01:37 +0300 Message-ID: <83mvx8252m.fsf@gnu.org> References: Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1440946942 19258 80.91.229.3 (30 Aug 2015 15:02:22 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 30 Aug 2015 15:02:22 +0000 (UTC) Cc: 21380@debbugs.gnu.org To: Pip Cet Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Aug 30 17:02:11 2015 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1ZW47W-0001fb-J4 for geb-bug-gnu-emacs@m.gmane.org; Sun, 30 Aug 2015 17:02:10 +0200 Original-Received: from localhost ([::1]:58893 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZW47W-00074C-6t for geb-bug-gnu-emacs@m.gmane.org; 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Sun, 30 Aug 2015 15:02:02 +0000 Original-Received: (at 21380) by debbugs.gnu.org; 30 Aug 2015 15:01:50 +0000 Original-Received: from localhost ([127.0.0.1]:42838 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1ZW47B-00061H-HR for submit@debbugs.gnu.org; Sun, 30 Aug 2015 11:01:49 -0400 Original-Received: from mtaout28.012.net.il ([80.179.55.184]:58363) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1ZW477-000617-1i for 21380@debbugs.gnu.org; Sun, 30 Aug 2015 11:01:47 -0400 Original-Received: from conversion-daemon.mtaout28.012.net.il by mtaout28.012.net.il (HyperSendmail v2007.08) id <0NTW00B00HJO4W00@mtaout28.012.net.il> for 21380@debbugs.gnu.org; Sun, 30 Aug 2015 18:01:20 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([84.94.185.246]) by mtaout28.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NTW0054THQ84Z70@mtaout28.012.net.il>; Sun, 30 Aug 2015 18:01:20 +0300 (IDT) In-reply-to: X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:105978 Archived-At: > Date: Sun, 30 Aug 2015 12:51:26 +0000 > From: Pip Cet > > It appears it's unsafe to schedule an immediate timer in > window-configuration-change-hook: > > (add-hook 'window-configuration-change-hook (lambda () (run-with-timer > 0 nil 'exwm-layout--refresh))) > > I saw the following segfault: > #0 0x0000000000547ec0 in XSETCAR (c=0, n=51872517) at lisp.h:1188 > #1 0x00000000005efdb3 in concat (nargs=1, args=0x7fffffffd868, > target_type=Lisp_Cons, last_special=false) at fns.c:747 > #2 0x00000000005ef0f3 in Fcopy_sequence (arg=53371635) at fns.c:510 > #3 0x0000000000557252 in timer_check () at keyboard.c:4569 > #4 0x0000000000639f1b in wait_reading_process_output (time_limit=30, nsecs=0, > read_kbd=-1, do_display=true, wait_for_cell=0, wait_proc=0x0, just_wait_proc=0) > at process.c:4611 > #5 0x00000000004233b2 in sit_for (timeout=122, reading=true, display_option=1) > at dispnew.c:5756 > #6 0x0000000000553942 in read_char (commandflag=1, map=53372867, prev_event=0, > used_mouse_menu=0x7fffffffe06f, end_time=0x0) at keyboard.c:2775 > #7 0x00000000005602ef in read_key_sequence (keybuf=0x7fffffffe220, bufsize=30, > prompt=0, dont_downcase_last=false, can_return_switch_frame=true, > fix_current_buffer=true, prevent_redisplay=false) at keyboard.c:9139 > #8 0x00000000005507b1 in command_loop_1 () at keyboard.c:1406 > #9 0x00000000005e77e4 in internal_condition_case (bfun=0x550386 > , handlers=18912, hfun=0x54fb70 ) at eval.c:1293 > #10 0x000000000055008d in command_loop_2 (ignore=0) at keyboard.c:1138 > #11 0x00000000005e6fa6 in internal_catch (tag=45264, func=0x550064 > , arg=0) at eval.c:1057 > #12 0x000000000055002f in command_loop () at keyboard.c:1117 > #13 0x000000000054f738 in recursive_edit_1 () at keyboard.c:723 > #14 0x000000000054f8cc in Frecursive_edit () at keyboard.c:794 > #15 0x000000000054d706 in main (argc=5, argv=0x7fffffffe6a8) at emacs.c:1643 > > Somehow, the argument to Fcopy_sequence was changed while concat was > underway. How do you see that? > Further investigation indicates that > window-configuration-change-hook was called in the middle of concat: Did you understand how this fact is related to the segfault? Thanks.