From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Andy Moreton Newsgroups: gmane.emacs.bugs Subject: bug#43700: 28.0.50; Crash creating a second frame Date: Sat, 3 Oct 2020 13:26:09 +0100 Message-ID: <572e3be7-6f96-90f3-192d-fa0b51f85218@gmail.com> References: <83y2ksk5sb.fsf@gnu.org> <6b20df65-0c09-f54c-1018-e95f7509aa75@gmail.com> <86tuvf6ndi.fsf@gmail.com> <83y2kqgl9a.fsf@gnu.org> <14da5210-bba0-9e33-65dc-a76e7f3878fe@gmail.com> <83d020g84v.fsf@gnu.org> <664bed9f-bad0-7720-62b2-c8632869291a@gmail.com> <83362vhgh9.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="2500"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 Cc: 43700@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Oct 03 14:27:18 2020 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 1kOgdC-0000Y5-3T for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 03 Oct 2020 14:27:18 +0200 Original-Received: from localhost ([::1]:45966 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kOgdB-0005h4-5O for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 03 Oct 2020 08:27:17 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:32876) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kOgcw-0005gr-M9 for bug-gnu-emacs@gnu.org; Sat, 03 Oct 2020 08:27:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:59784) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kOgcw-0001Dg-Cc for bug-gnu-emacs@gnu.org; Sat, 03 Oct 2020 08:27:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kOgcw-0000nu-9Y for bug-gnu-emacs@gnu.org; Sat, 03 Oct 2020 08:27:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Andy Moreton Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 03 Oct 2020 12:27:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 43700 X-GNU-PR-Package: emacs Original-Received: via spool by 43700-submit@debbugs.gnu.org id=B43700.16017279803043 (code B ref 43700); Sat, 03 Oct 2020 12:27:02 +0000 Original-Received: (at 43700) by debbugs.gnu.org; 3 Oct 2020 12:26:20 +0000 Original-Received: from localhost ([127.0.0.1]:43097 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kOgcG-0000mz-Lj for submit@debbugs.gnu.org; Sat, 03 Oct 2020 08:26:20 -0400 Original-Received: from mail-wm1-f68.google.com ([209.85.128.68]:35593) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kOgcF-0000mn-Ck for 43700@debbugs.gnu.org; Sat, 03 Oct 2020 08:26:19 -0400 Original-Received: by mail-wm1-f68.google.com with SMTP id y15so4393951wmi.0 for <43700@debbugs.gnu.org>; Sat, 03 Oct 2020 05:26:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=BO0/q088JuwQ/THg2tbUrBaAVCaiVmHzd9rXZqvvLuM=; b=AH7KoXYninqJBrNTKJrCeXXzuNz1w3xNVusEVK1PTaOOXMtcbCCINdmbxz0+8xPPll LIBfyURqOwS8n4/FiivWyItFXfJVkn9EIsvYCd1Qg6aSEIY3uplPma9lLJ3eVy9UCeNv 9oEGyGskR0VDgM/nTc0sf0uwmipv38bBWT5S8w3JCaJNk0fW5l1J6PZyZ1GM3deKQKx0 lf0uP94ghnPuUT6gfRdjln3YpJnTzvZ37FtSSB0C07S0EsrHgjtBh/Ns612cJiyhuxE8 WR5aXQ9qKt3fcAXD6g+UAJvMAnOK+QdUjNVUfSBIA48LWTp7IXnUUiCeACUU1HedeQfk 1uxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=BO0/q088JuwQ/THg2tbUrBaAVCaiVmHzd9rXZqvvLuM=; b=Rn4wFYa/cBmFneHeBzz6Qq67oqNCTN3YLtYFcWVmVrmj3hRyhYR2CB2kfmz5O+M9td t93OfzVm3yFz31UfnydnzRSugq4EYWKXDORCYNcvlSiF6tV8KC/e3ccfUEe/+6GiwyGG YwrT80fbSjUo0DIXimEn93R12ghOvRic74uOuCtOUHIJ7q6uAmx6rLhK3DMh7P6GLxdA z3qYyEt2cMLq/bRNtaP1rR3PQHdnYLqp82YltOKi/ujsMpPIPaBcRHGPV9o8w1miHe95 UjjFch9s8KExs/wn9uTK7FwNvRYWC4sKcR1UffNkh1R6W5x9jTu/7dqwtSK9rCJZU2tj e1rg== X-Gm-Message-State: AOAM5335ZvpjNsPvX5l1UU8NXdz6YksBXR8AKSp4UmLcrGxK1bX1F/ZN +futMuXVWDYTZ9tRZa6l4F1RbgZWfS8= X-Google-Smtp-Source: ABdhPJxSB7/3aah6uN3BGXWaSLR9RpN6vzuzLVkd/XcwBVWknQTC+co+R8cLkp+OEQURaeyi3zp70g== X-Received: by 2002:a1c:9c13:: with SMTP id f19mr7278660wme.97.1601727973237; Sat, 03 Oct 2020 05:26:13 -0700 (PDT) Original-Received: from [192.168.0.6] (82-69-64-228.dsl.in-addr.zen.co.uk. [82.69.64.228]) by smtp.gmail.com with ESMTPSA id b200sm253100wme.44.2020.10.03.05.26.11 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 03 Oct 2020 05:26:12 -0700 (PDT) In-Reply-To: <83362vhgh9.fsf@gnu.org> Content-Language: en-GB 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:189693 Archived-At: On 03/10/2020 09:16, Eli Zaretskii wrote: > OK. x-create-frame in w32fns.c initializes the basic faces of the > frame, here: > > /* Init faces first since we need the frame's column width/line > height in various occasions. */ > init_frame_faces (f); > > I suggest to put a breakpoint after that function returns, and when it > breaks for the second frame you are creating, put a watchpoint on the > frame's face cache, like this: > > (gdb) watch -l f->face_cache->used if f->face_cache->used == 0 > > Then produce a backtrace from any time this watchpoint fires. That > should show us the culprit. The watchpoint does not fire before the segfault, so there is clearly something wrong with gdb on this platform :-( AndyM