From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Crash with --enable-checking and some glyphs Date: Fri, 26 Nov 2021 14:50:20 +0200 Message-ID: <83h7bz2i9f.fsf@gnu.org> References: <87h7c1u0cg.fsf@gnus.org> <87czmpu0ae.fsf@gnus.org> <87wnkxskvn.fsf@gnus.org> <87zgpt63m3.fsf@gnus.org> <83mtlt8vil.fsf@gnu.org> <87v90h6271.fsf@gnus.org> <83lf1d8uyw.fsf@gnu.org> <87r1b561kn.fsf@gnus.org> <871r35ziyl.fsf@gnus.org> <87sfvlwkrc.fsf_-_@gnus.org> <87sfvlh1zo.fsf@gmail.com> <87h7c0flfk.fsf@gnus.org> <874k807166.fsf@gmail.com> <87wnkwb8q7.fsf@gnus.org> <87sfvkb85w.fsf@gnus.org> <83wnkw469i.fsf@gnu.org> <87ee739kjx.fsf@gnus.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="17202"; mail-complaints-to="usenet@ciao.gmane.io" Cc: rpluim@gmail.com, emacs-devel@gnu.org To: Lars Ingebrigtsen Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Nov 26 13:52:07 2021 Return-path: Envelope-to: ged-emacs-devel@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 1mqahy-0004At-Pp for ged-emacs-devel@m.gmane-mx.org; Fri, 26 Nov 2021 13:52:06 +0100 Original-Received: from localhost ([::1]:57116 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mqahx-0001pZ-J2 for ged-emacs-devel@m.gmane-mx.org; Fri, 26 Nov 2021 07:52:05 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:47374) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mqagF-00087a-W8 for emacs-devel@gnu.org; Fri, 26 Nov 2021 07:50:20 -0500 Original-Received: from [2001:470:142:3::e] (port=46380 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mqagF-0000lM-4t; Fri, 26 Nov 2021 07:50:19 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=uoVZDfbFh84UEQhDv4BRD7nD+s4gJTvEF10IMaVI5DY=; b=c0bST2L8N2GU kDnbOs3m8J9YbM61140f/Hvzx+JRAjIerrNzhvydpc+DldZohpuexNKAS3ZK2ExUIuDHxcN6Xidjv +4Bbgf4Cyn8tmmTYgrAcKESdhnY/BH4caXuvReaK34y/UbqxsvdqgFnC7/6871oD8zvG2uy4cqa/N jN0Pw+036BW6FZxGc/bz89m646OtIV1hOKIkcSpoIcqaorqGvARr5Ev1Y4lg168giVLltMELZTxiC S+HZVZTjZqukqKQdSiJMBg3/ZUYzpEbbRkb5VtJuQ0cNDYpADofLLV3P9oVs09JKOtLONHYWEba2s 4dulBhVndFHZzN/ndBd3Lw==; Original-Received: from [87.69.77.57] (port=2579 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mqagC-0005TP-NC; Fri, 26 Nov 2021 07:50:18 -0500 In-Reply-To: <87ee739kjx.fsf@gnus.org> (message from Lars Ingebrigtsen on Fri, 26 Nov 2021 13:18:58 +0100) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:280236 Archived-At: > From: Lars Ingebrigtsen > Cc: rpluim@gmail.com, emacs-devel@gnu.org > Date: Fri, 26 Nov 2021 13:18:58 +0100 > > Eli Zaretskii writes: > > > Please show a full backtrace, maybe it can provide some hints or > > ideas. Also, the values of the variables involved in this. > > I haven't really tried to debug this at all -- I just wondered whether > I'm the only person in the universe that's seeing the issue, and it > seems like I am? > > Here's the results from gdb with -O2: > > #0 raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49 > #1 0x00005555555a6e5e in terminate_due_to_signal > (sig=sig@entry=6, backtrace_limit=backtrace_limit@entry=2147483647) > at emacs.c:443 > #2 0x00005555555acd6e in die > (msg=msg@entry=0x555555825948 "it->ascent >= 0 && it->descent >= 0", file=file@entry=0x5555558230a8 "xdisp.c", line=line@entry=31556) at alloc.c:7491 > #3 0x000055555559d065 in gui_produce_glyphs (it=) > at xdisp.c:31556 What does the following show? (gdb) fr 3 (gdb) source /path/to/emacs/src/.gdbinit (gdb) p it->what (gdb) p/x it->c (gdb) pgrowx it->glyph_row The last command should display the entire glyph row you have there, which maybe will tell us something useful. The two commands before it could also be useful.