From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Pieter van Oostrum Newsgroups: gmane.emacs.bugs Subject: bug#39962: 27.0.90; Crash in Emacs 27.0.90 Date: Wed, 18 Mar 2020 00:32:42 +0100 Message-ID: References: <24162.58107.725366.668639@cochabamba.vanoostrum.org> <83y2s48yn7.fsf@gnu.org> <83zhck6obg.fsf@gnu.org> <83r1xv73ze.fsf@gnu.org> <83imj5bdct.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="93125"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.90 (darwin) Cc: eggert@cs.ucla.edu, 39962@debbugs.gnu.org To: Pip Cet Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Mar 18 00:37:54 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 1jELmS-000O7K-4x for geb-bug-gnu-emacs@m.gmane-mx.org; 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Wed, 18 Mar 2020 00:32:43 +0100 (CET) X-Barracuda-Envelope-From: pieter-l@vanoostrum.org X-Barracuda-Effective-Source-IP: server24.hosting2go.nl[185.135.241.24] X-Barracuda-Apparent-Source-IP: 185.135.241.24 Original-Received: (qmail 30597 invoked from network); 17 Mar 2020 23:32:43 -0000 Original-Received: from static-145.132.212.31.ip.telfort.nl (HELO cochabamba.vanoostrum.org) (145.132.212.31) by server24.hosting2go.nl with SMTP; 17 Mar 2020 23:32:43 -0000 Received-SPF: unknown (server24.hosting2go.nl: domain at 83.137.194.9 does not designate permitted sender hosts) Original-Received: from cochabamba.vanoostrum.org (localhost [IPv6:::1]) by cochabamba.vanoostrum.org (Postfix) with ESMTP id 24E81ABC4137; Wed, 18 Mar 2020 00:32:43 +0100 (CET) X-ASG-Orig-Subj: Re: bug#39962: 27.0.90; Crash in Emacs 27.0.90 In-Reply-To: (Pip Cet's message of "Tue, 17 Mar 2020 20:16:14 +0000") X-Barracuda-Connect: server24.hosting2go.nl[185.135.241.24] X-Barracuda-Start-Time: 1584487963 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://83.137.198.201:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at hosting2go.nl X-Barracuda-Scan-Msg-Size: 2804 X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.50 X-Barracuda-Spam-Status: No, SCORE=0.50 using global scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=4.5 tests=BSF_RULE7568M, BSF_SC0_MISMATCH_TO A-X-Hosting2GO-Smarthost: Clean X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.80667 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.50 BSF_RULE7568M Custom Rule 7568M 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: 209.51.188.43 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:177470 Archived-At: Pip Cet writes: > On Tue, Mar 17, 2020 at 3:27 PM Pieter van Oostrum > wrote: >> Pip Cet writes: >> > On Tue, Mar 17, 2020 at 8:45 AM Pieter van Oostrum >> > wrote: >> >> 0x12590f3f0: 0x0000000000000006 0x0000000000000000 >> >> 0x12590f400: 0x000000000d4269c0 0x0000000000000000 >> > >> > I'm suspicious about this "symbol". Is 0xd4269c0 a valid lisp value? >> >> I'm sorry. I don't know how to find out. I'm just a newbee with debugging elisp in gdb. > > I believe "xprintsym 0xd4269c0" would work on macOS, too. I'm not sure > whether "pp 0xd4269c0" would. (gdb) xprintsym 0xd4269c0 Invalid number "0xd4269c0.i". (gdb) pp 0xd4269c0 Invalid cast. > > "x/32gx 0xd4269c0" would also be interesting, potentially, if that is > a valid memory address. (gdb) x/32gx 0xd4269c0 0xd4269c0: Cannot access memory at address 0xd4269c0 >> >> 0x12590f430: 0x0000000000000002 0x0000000000008df0 >> >> 0x12590f440: 0x0000000005757688 0xa5a5a5a5a5a5a5a5 >> > >> > This vector is weird. The first entry is a symbol, but the second >> > entry looks invalid to me: all other symbols are aligned to 16-byte >> > boundaries, and I don't think 0x5757688 is even a valid pointer. > > "x/32gx 0x5757688" would also be interesting if it works. (gdb) x/32gx 0x5757688 0x5757688: Cannot access memory at address 0x5757688 >> > Can you check which symbol corresponds to 0x8df0 in your build? It >> > should be the one with 757 in its define line in globals.h >> > >> > # define Qlibpng_version builtin_lisp_symbol (757) >> >> Sorry, again, I don't know how to find that symbol. I guess it's one >> of the functions defined in .gdbinit, but I don't know which one. >> >> And in globals.h, the numbers are different. >> >> # define Qlibpng_version builtin_lisp_symbol (687) >> # define Qmode_line builtin_lisp_symbol (757) > > Thanks, that's precisely what I wanted to know. So it's a vector > [mode-line X], where X is either a very peculiar symbol or invalid. > >> >> 0x12590f520: 0x4000000002002000 0x0000000200000003 >> >> 0x12590f530: 0x000000011de53fc0 0xa5a5a5a5a5a5a5a5 >> > >> > A real-life bignum! Can you print x/2gx 0x11de53fc0 so we figure out >> > what its value is? (And what's creating bignums in your session?) >> >> (gdb) x/2gx 0x11de53fc0 >> 0x11de53fc0: 0xe3fedf0cbab410c0 0x0000000000000055 >> >> I don't think there is something explicitely creating bignums. But >> could it be the result of a calculation that doesn't fit in an normal >> int? > > It's a picosecond time stamp, so that's okay. -- Pieter van Oostrum www: http://pieter.vanoostrum.org/ PGP key: [8DAE142BE17999C4]