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.bugs Subject: bug#47067: 28.0.50; [feature/native-comp] Crash while scrolling through dispnew.c Date: Sat, 13 Mar 2021 13:10:29 +0200 Message-ID: <83tupfia1m.fsf@gnu.org> References: <83sg52lykn.fsf@gnu.org> <83mtv8lrmf.fsf@gnu.org> <83czw4lelg.fsf@gnu.org> <83mtv8jgn2.fsf@gnu.org> <834khfjv7q.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="19966"; mail-complaints-to="usenet@ciao.gmane.io" Cc: akrl@sdf.org, 47067@debbugs.gnu.org To: Pip Cet Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Mar 13 12:11:15 2021 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 1lL2Ar-00056P-PB for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 13 Mar 2021 12:11:13 +0100 Original-Received: from localhost ([::1]:54790 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lL2Aq-0007y9-QR for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 13 Mar 2021 06:11:12 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:43656) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lL2Ag-0007xn-An for bug-gnu-emacs@gnu.org; Sat, 13 Mar 2021 06:11:03 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:47632) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lL2Ag-00072X-3T for bug-gnu-emacs@gnu.org; Sat, 13 Mar 2021 06:11:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lL2Af-0006Dr-UY for bug-gnu-emacs@gnu.org; Sat, 13 Mar 2021 06:11:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 13 Mar 2021 11:11:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 47067 X-GNU-PR-Package: emacs Original-Received: via spool by 47067-submit@debbugs.gnu.org id=B47067.161563383423885 (code B ref 47067); Sat, 13 Mar 2021 11:11:01 +0000 Original-Received: (at 47067) by debbugs.gnu.org; 13 Mar 2021 11:10:34 +0000 Original-Received: from localhost ([127.0.0.1]:59178 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lL2AD-0006DA-Im for submit@debbugs.gnu.org; Sat, 13 Mar 2021 06:10:34 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:53990) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lL2AA-0006Cl-71 for 47067@debbugs.gnu.org; Sat, 13 Mar 2021 06:10:30 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:60695) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lL2A4-0006cF-Pc; Sat, 13 Mar 2021 06:10:24 -0500 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:3664 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1lL2A3-0006Yf-3y; Sat, 13 Mar 2021 06:10:24 -0500 In-Reply-To: (message from Pip Cet on Sat, 13 Mar 2021 08:53:04 +0000) 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:202256 Archived-At: > From: Pip Cet > Date: Sat, 13 Mar 2021 08:53:04 +0000 > Cc: Andrea Corallo , 47067@debbugs.gnu.org > > It's c-beginning-of-statement-1 that I think is the immediate caller. It's nowhere in the C backtrace, only its caller c-font-lock-cut-off-declarators is. And I'm not sure we can trust the C backtrace anyway, given its abnormalities that I cannot explain yet. In particular, if I put a breakpoint in wrong_type_argument, which seems to appear in the backtrace, that breakpoint never breaks during the recipe. > Can you disassemble the function around 0x09c32285 (or, in another > dump, whatever calls Flss), particularly the 256 bytes or so before > that EIP? Below. The updated address for the caller of Flss is 0x09d82285, which is not in any function whose name is known to GDB. (gdb) bt #0 0x01236964 in arithcompare_driver (nargs=2, args=0x28, comparison=ARITH_LESS) at data.c:2673 #1 0x01236a3c in Flss (nargs=2, args=0x28) at data.c:2691 #2 0x09d82285 in ?? () #3 0x01261a74 in funcall_lambda (fun=XIL(0xa000000000fcb7f8), nargs=5, arg_vector=0x826a08) at eval.c:3292 #4 0x012603c9 in Ffuncall (nargs=6, args=0x826a00) at eval.c:3013 #5 0x09df0dbf in ?? () #6 0x012603c9 in Ffuncall (nargs=1, args=0x826bd8) at eval.c:3013 #7 0x09dde041 in ?? () #8 0x01261a74 in funcall_lambda (fun=XIL(0xa000000006a5d2c8), nargs=1, arg_vector=0x826db8) at eval.c:3292 #9 0x012603c9 in Ffuncall (nargs=2, args=0x826db0) at eval.c:3013 #10 0x70895b36 in F632d666f6e742d6c6f636b2d6375742d6f66662d6465636c617261746f7273_c_font_lock_cut_off_declarators_0 () from d:\usr\eli\.emacs.d\eln-cache\28.0.50-7d88f6c1\cc-fonts-d7d8a7f5-b7c359cd.eln #11 0x01261a74 in funcall_lambda (fun=XIL(0xa0000000077a8918), nargs=1, arg_vector=0x827050) at eval.c:3292 #12 0x012603c9 in Ffuncall (nargs=2, args=0x827048) at eval.c:3013 #13 0x068daf93 in ?? () #14 0x012dea14 in helper_save_restriction () at comp.c:4575 #15 0x0122eb86 in wrong_type_argument (predicate=XIL(0x892404890c245c89), value=XIL(0x8244c89e45d8be0)) at data.c:143 Backtrace stopped: previous frame inner to this frame (corrupt stack?) Lisp Backtrace: "c-beginning-of-statement-1" (0x826a08) "c-just-after-func-arglist-p" (0x826be0) "c-back-over-member-initializers" (0x826db8) "c-font-lock-cut-off-declarators" (0x827050) "font-lock-fontify-keywords-region" (0x8273a8) "font-lock-default-fontify-region" (0x8276b8) "c-font-lock-fontify-region" (0x827868) "font-lock-fontify-region" (0x827a58) 0x6ac13c8 PVEC_COMPILED "jit-lock--run-functions" (0x8283f0) "jit-lock-fontify-now" (0x8286b0) "jit-lock-function" (0x8288d8) "redisplay_internal (C function)" (0x0) "sit-for" (0x82e040) "isearch-lazy-highlight-new-loop" (0x82e320) "isearch-update" (0x82e620) "isearch-search-and-update" (0x82e830) "isearch-process-search-string" (0x82ea58) "isearch-process-search-char" (0x82ec90) "isearch-printing-char" (0x82f030) "funcall-interactively" (0x82f028) "command-execute" (0x82f598) (gdb) disassemble 0x9d82100,+0x200 Dump of assembler code from 0x9d82100 to 0x9d82300: 0x09d82100: mov %edx,-0xe4(%ebp) 0x09d82106: mov 0x9e87564,%edx 0x09d8210c: mov %eax,-0xe0(%ebp) 0x09d82112: mov -0x100(%ebp),%eax 0x09d82118: mov %edx,-0xdc(%ebp) 0x09d8211e: mov %eax,0x4(%esp) 0x09d82122: call *0xd84(%ebx) 0x09d82128: mov %eax,-0xf0(%ebp) 0x09d8212e: mov %edx,-0xec(%ebp) 0x09d82134: mov %eax,(%esp) 0x09d82137: mov %edx,0x4(%esp) 0x09d8213b: call *0xad8(%ebx) 0x09d82141: mov %eax,-0xf0(%ebp) 0x09d82147: mov %edx,-0xec(%ebp) 0x09d8214d: call *0xab0(%ebx) 0x09d82153: jmp 0x9d80934 0x09d82158: lea 0x0(%esi,%eiz,1),%esi 0x09d8215f: nop 0x09d82160: mov 0x9e87b50,%eax 0x09d82165: mov 0x9e87b54,%edx 0x09d8216b: mov %eax,-0xf0(%ebp) 0x09d82171: mov 0x9e87aa0,%eax 0x09d82176: mov %edx,-0xec(%ebp) 0x09d8217c: mov 0x9e87aa4,%edx 0x09d82182: mov %eax,(%esp) 0x09d82185: mov %edx,0x4(%esp) 0x09d82189: call *0x1358(%ebx) 0x09d8218f: movl $0x4,(%esp) 0x09d82196: mov %eax,-0xe8(%ebp) 0x09d8219c: mov 0x9e875f0,%eax 0x09d821a1: mov %edx,-0xe4(%ebp) 0x09d821a7: mov 0x9e875f4,%edx 0x09d821ad: mov %eax,-0xe0(%ebp) 0x09d821b3: mov %eax,-0xd8(%ebp) 0x09d821b9: mov -0x100(%ebp),%eax 0x09d821bf: mov %edx,-0xdc(%ebp) 0x09d821c5: mov %edx,-0xd4(%ebp) 0x09d821cb: mov %eax,0x4(%esp) 0x09d821cf: call *0xd84(%ebx) 0x09d821d5: mov 0x9e8a750,%ecx 0x09d821db: mov %eax,-0xf0(%ebp) 0x09d821e1: mov (%ecx),%ecx 0x09d821e3: mov %edx,-0xec(%ebp) 0x09d821e9: mov 0x54(%ecx),%esi 0x09d821ec: mov 0x20(%esi),%esi 0x09d821ef: mov %esi,0x54(%ecx) 0x09d821f2: jmp 0x9d808b2 0x09d821f7: lea 0x0(%esi,%eiz,1),%esi 0x09d821fe: xchg %ax,%ax 0x09d82200: mov 0x9e87950,%eax 0x09d82205: mov 0x9e87954,%edx 0x09d8220b: mov %eax,(%esp) 0x09d8220e: mov %edx,0x4(%esp) 0x09d82212: call *0x1358(%ebx) 0x09d82218: mov %edx,-0xec(%ebp) 0x09d8221e: or %eax,%edx 0x09d82220: mov %eax,-0xf0(%ebp) 0x09d82226: je 0x9d82308 0x09d8222c: mov 0x9e87690,%eax 0x09d82231: mov 0x9e87694,%edx 0x09d82237: mov %eax,(%esp) 0x09d8223a: mov %edx,0x4(%esp) 0x09d8223e: call *0x1358(%ebx) 0x09d82244: mov %eax,-0xf0(%ebp) 0x09d8224a: mov 0x9e875a8,%eax 0x09d8224f: mov %edx,-0xec(%ebp) 0x09d82255: mov 0x9e875ac,%edx 0x09d8225b: mov %eax,(%esp) 0x09d8225e: mov %edx,0x4(%esp) 0x09d82262: call *0x1358(%ebx) 0x09d82268: mov %edi,0x4(%esp) 0x09d8226c: mov %eax,-0xe8(%ebp) 0x09d82272: mov %edx,-0xe4(%ebp) 0x09d82278: movl $0x2,(%esp) 0x09d8227f: call *0x1318(%ebx) 0x09d82285: mov %edx,-0xec(%ebp) <<<<<<<<<<<<<<<<<<<< 0x09d8228b: or %eax,%edx 0x09d8228d: mov %eax,-0xf0(%ebp) 0x09d82293: jne 0x9d82308 0x09d82295: mov 0x9e87690,%eax 0x09d8229a: mov 0x9e87694,%edx 0x09d822a0: mov %eax,(%esp) 0x09d822a3: mov %edx,0x4(%esp) 0x09d822a7: call *0x1358(%ebx) 0x09d822ad: mov %eax,-0xf0(%ebp) 0x09d822b3: mov 0x9e87988,%eax 0x09d822b8: mov %edx,-0xec(%ebp) 0x09d822be: mov 0x9e8798c,%edx 0x09d822c4: mov %eax,(%esp) 0x09d822c7: mov %edx,0x4(%esp) 0x09d822cb: call *0x1358(%ebx) 0x09d822d1: mov %edi,0x4(%esp) 0x09d822d5: mov %eax,-0xe8(%ebp) 0x09d822db: mov %edx,-0xe4(%ebp) 0x09d822e1: movl $0x2,(%esp) 0x09d822e8: call *0x130c(%ebx) 0x09d822ee: mov %edx,-0xec(%ebp) 0x09d822f4: or %eax,%edx 0x09d822f6: mov %eax,-0xf0(%ebp) 0x09d822fc: je 0x9d7ee24 End of assembler dump. (gdb) fr 2 #2 0x09d82285 in ?? () (gdb) info registers eax 0x30 48 ecx 0x6a54fe8 111497192 edx 0x8 8 ebx 0x187b8c0 25671872 esp 0x826650 0x826650 ebp 0x826778 0x826778 esi 0x4002d2b0 1073926832 edi 0x28 40 eip 0x9d82285 0x9d82285 eflags 0x10216 [ PF AF IF RF ] cs 0x1b 27 ss 0x23 35 ds 0x23 35 es 0x23 35 fs 0x3b 59 gs 0x0 0 (gdb) info symbol (0x187b8c0+0x1318) freloc + 4888 in section .bss of D:\gnu\git\emacs\native-comp\src\emacs.exe