From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: martin rudalics Newsgroups: gmane.emacs.bugs Subject: bug#47207: 28.0.50; decode_next_window_args crash Date: Wed, 17 Mar 2021 09:45:21 +0100 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="------------AD4405D0F47339962EB4E17A" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="22306"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Alan Mackenzie To: 47207@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Mar 17 09:46:41 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 1lMRpB-0005eN-46 for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 17 Mar 2021 09:46:41 +0100 Original-Received: from localhost ([::1]:45650 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lMRpA-0004j0-4s for geb-bug-gnu-emacs@m.gmane-mx.org; 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envelope-from=rudalics@gmx.at; helo=mout.gmx.net X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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:202516 Archived-At: This is a multi-part message in MIME format. --------------AD4405D0F47339962EB4E17A Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit The following bug has hit me out of the blue a couple of times. Trying to ediff two buffers gets me the crash below: #0 0x00000000005a5f85 in terminate_due_to_signal (sig=6, backtrace_limit=2147483647) at ../../src/emacs.c:379 #1 0x0000000000651df0 in die (msg=0x788ee1 "WINDOWP (a)", file=0x788ece "../../src/window.h", line=543) at ../../src/alloc.c:7420 #2 0x00000000004bdca6 in XWINDOW (a=XIL(0)) at ../../src/window.h:543 #3 0x00000000004c6a4d in decode_next_window_args (window=0x7fffffffa808, minibuf=0x7fffffffa800, all_frames=0x7fffffffa7f8) at ../../src/window.c:2891 #4 0x00000000004c6bff in next_window (window=XIL(0x2b04405), minibuf=XIL(0), all_frames=XIL(0x30), next_p=true) at ../../src/window.c:2927 #5 0x00000000004c7086 in Fnext_window (window=XIL(0x2b04405), minibuf=XIL(0), all_frames=XIL(0x30)) at ../../src/window.c:3023 #6 0x000000000068b298 in funcall_subr (subr=0xc4b6e0 , numargs=3, args=0x7fffffffa9d0) at ../../src/eval.c:2996 #7 0x000000000068ad15 in Ffuncall (nargs=4, args=0x7fffffffa9c8) at ../../src/eval.c:2918 #8 0x00000000006e4865 in exec_byte_code (bytestr=XIL(0x7ffff3cc5764), vector=XIL(0x7ffff3cc5255), maxdepth=make_fixnum(12), args_template=make_fixnum(769), nargs=2, args=0x7fffffffaf68) at ../../src/bytecode.c:632 #9 0x000000000068b4cd in fetch_and_exec_byte_code (fun=XIL(0x7ffff3cc51fd), syms_left=make_fixnum(769), nargs=2, args=0x7fffffffaf58) at ../../src/eval.c:3040 #10 0x000000000068b953 in funcall_lambda (fun=XIL(0x7ffff3cc51fd), nargs=2, arg_vector=0x7fffffffaf58) at ../../src/eval.c:3121 #11 0x000000000068ad59 in Ffuncall (nargs=3, args=0x7fffffffaf50) at ../../src/eval.c:2920 #12 0x00000000006e4865 in exec_byte_code (bytestr=XIL(0x1b2c854), vector=XIL(0x1a0010d), maxdepth=make_fixnum(7), args_template=make_fixnum(256), nargs=0, args=0x7fffffffb4a0) at ../../src/bytecode.c:632 #13 0x000000000068b4cd in fetch_and_exec_byte_code (fun=XIL(0x1a001ad), syms_left=make_fixnum(256), nargs=0, args=0x7fffffffb4a0) at ../../src/eval.c:3040 #14 0x000000000068b953 in funcall_lambda (fun=XIL(0x1a001ad), nargs=0, arg_vector=0x7fffffffb4a0) at ../../src/eval.c:3121 #15 0x000000000068ad59 in Ffuncall (nargs=1, args=0x7fffffffb498) at ../../src/eval.c:2920 #16 0x00000000006e4865 in exec_byte_code (bytestr=XIL(0x1b09454), vector=XIL(0x1988f85), maxdepth=make_fixnum(9), args_template=make_fixnum(514), nargs=2, args=0x7fffffffba68) at ../../src/bytecode.c:632 #17 0x000000000068b4cd in fetch_and_exec_byte_code (fun=XIL(0x198906d), syms_left=make_fixnum(514), nargs=2, args=0x7fffffffba58) at ../../src/eval.c:3040 #18 0x000000000068b953 in funcall_lambda (fun=XIL(0x198906d), nargs=2, arg_vector=0x7fffffffba58) at ../../src/eval.c:3121 #19 0x000000000068ad59 in Ffuncall (nargs=3, args=0x7fffffffba50) at ../../src/eval.c:2920 #20 0x00000000006e4865 in exec_byte_code (bytestr=XIL(0x1b08c04), vector=XIL(0x1988ba5), maxdepth=make_fixnum(8), args_template=make_fixnum(771), nargs=3, args=0x7fffffffbfc0) at ../../src/bytecode.c:632 #21 0x000000000068b4cd in fetch_and_exec_byte_code (fun=XIL(0x1988c45), syms_left=make_fixnum(771), nargs=3, args=0x7fffffffbfa8) at ../../src/eval.c:3040 #22 0x000000000068b953 in funcall_lambda (fun=XIL(0x1988c45), nargs=3, arg_vector=0x7fffffffbfa8) at ../../src/eval.c:3121 #23 0x000000000068ad59 in Ffuncall (nargs=4, args=0x7fffffffbfa0) at ../../src/eval.c:2920 #24 0x00000000006e4865 in exec_byte_code (bytestr=XIL(0x1b41884), vector=XIL(0x1a037f5), maxdepth=make_fixnum(17), args_template=make_fixnum(2312), nargs=9, args=0x7fffffffcb10) at ../../src/bytecode.c:632 #25 0x000000000068b4cd in fetch_and_exec_byte_code (fun=XIL(0x1aa7c75), syms_left=make_fixnum(2312), nargs=9, args=0x7fffffffcac8) at ../../src/eval.c:3040 #26 0x000000000068b953 in funcall_lambda (fun=XIL(0x1aa7c75), nargs=9, arg_vector=0x7fffffffcac8) at ../../src/eval.c:3121 #27 0x000000000068ad59 in Ffuncall (nargs=10, args=0x7fffffffcac0) at ../../src/eval.c:2920 #28 0x00000000006e4865 in exec_byte_code (bytestr=XIL(0x1a187b4), vector=XIL(0x1123095), maxdepth=make_fixnum(25), args_template=make_fixnum(1541), nargs=5, args=0x7fffffffd0f8) at ../../src/bytecode.c:632 #29 0x000000000068b4cd in fetch_and_exec_byte_code (fun=XIL(0x112310d), syms_left=make_fixnum(1541), nargs=5, args=0x7fffffffd0d0) at ../../src/eval.c:3040 #30 0x000000000068b953 in funcall_lambda (fun=XIL(0x112310d), nargs=5, arg_vector=0x7fffffffd0d0) at ../../src/eval.c:3121 #31 0x000000000068ad59 in Ffuncall (nargs=6, args=0x7fffffffd0c8) at ../../src/eval.c:2920 #32 0x00000000006e4865 in exec_byte_code (bytestr=XIL(0x1a18a34), vector=XIL(0x1616e2d), maxdepth=make_fixnum(10), args_template=make_fixnum(1026), nargs=2, args=0x7fffffffd540) at ../../src/bytecode.c:632 #33 0x000000000068b4cd in fetch_and_exec_byte_code (fun=XIL(0x1a7257d), syms_left=make_fixnum(1026), nargs=2, args=0x7fffffffd530) at ../../src/eval.c:3040 #34 0x000000000068b953 in funcall_lambda (fun=XIL(0x1a7257d), nargs=2, arg_vector=0x7fffffffd530) at ../../src/eval.c:3121 #35 0x000000000068b677 in apply_lambda (fun=XIL(0x1a7257d), args=XIL(0x1afad93), count=9) at ../../src/eval.c:3065 #36 0x00000000006897c1 in eval_sub (form=XIL(0x1afadd3)) at ../../src/eval.c:2440 #37 0x000000000068391a in Fprogn (body=XIL(0)) at ../../src/eval.c:462 #38 0x000000000068be0a in funcall_lambda (fun=XIL(0x1afab83), nargs=0, arg_vector=0x0) at ../../src/eval.c:3188 #39 0x000000000068ae6c in Ffuncall (nargs=1, args=0x7fffffffda88) at ../../src/eval.c:2932 #40 0x000000000067ef12 in Ffuncall_interactively (nargs=1, args=0x7fffffffda88) at ../../src/callint.c:260 #41 0x000000000068b13f in funcall_subr (subr=0xc570a0 , numargs=1, args=0x7fffffffda88) at ../../src/eval.c:2971 #42 0x000000000068ad15 in Ffuncall (nargs=2, args=0x7fffffffda80) at ../../src/eval.c:2918 #43 0x0000000000689b16 in Fapply (nargs=3, args=0x7fffffffda80) at ../../src/eval.c:2501 #44 0x000000000067f39a in Fcall_interactively (function=XIL(0xd1edf0), record_flag=XIL(0), keys=XIL(0x7ffff437c805)) at ../../src/callint.c:353 #45 0x000000000068b298 in funcall_subr (subr=0xc570e0 , numargs=3, args=0x7fffffffdd40) at ../../src/eval.c:2996 #46 0x000000000068ad15 in Ffuncall (nargs=4, args=0x7fffffffdd38) at ../../src/eval.c:2918 #47 0x00000000006e4865 in exec_byte_code (bytestr=XIL(0x7ffff3d7c80c), vector=XIL(0x7ffff3d7c125), maxdepth=make_fixnum(13), args_template=make_fixnum(1025), nargs=1, args=0x7fffffffe2b0) at ../../src/bytecode.c:632 #48 0x000000000068b4cd in fetch_and_exec_byte_code (fun=XIL(0x7ffff3d7c0f5), syms_left=make_fixnum(1025), nargs=1, args=0x7fffffffe2a8) at ../../src/eval.c:3040 #49 0x000000000068b953 in funcall_lambda (fun=XIL(0x7ffff3d7c0f5), nargs=1, arg_vector=0x7fffffffe2a8) at ../../src/eval.c:3121 #50 0x000000000068ad59 in Ffuncall (nargs=2, args=0x7fffffffe2a0) at ../../src/eval.c:2920 #51 0x000000000068a645 in call1 (fn=XIL(0x4230), arg1=XIL(0xd1edf0)) at ../../src/eval.c:2778 #52 0x00000000005ade1b in command_loop_1 () at ../../src/keyboard.c:1466 #53 0x0000000000686b71 in internal_condition_case (bfun=0x5ad5c2 , handlers=XIL(0x90), hfun=0x5acbd1 ) at ../../src/eval.c:1443 #54 0x00000000005ad1a7 in command_loop_2 (ignore=XIL(0)) at ../../src/keyboard.c:1094 #55 0x0000000000685f7d in internal_catch (tag=XIL(0xd6b0), func=0x5ad17a , arg=XIL(0)) at ../../src/eval.c:1193 #56 0x00000000005ad145 in command_loop () at ../../src/keyboard.c:1073 #57 0x00000000005ac6b8 in recursive_edit_1 () at ../../src/keyboard.c:720 #58 0x00000000005ac8b0 in Frecursive_edit () at ../../src/keyboard.c:789 #59 0x00000000005a8787 in main (argc=1, argv=0x7fffffffe7c8) at ../../src/emacs.c:2050 Lisp Backtrace: "next-window" (0xffffa9d0) "other-window" (0xffffaf58) "ediff-skip-unsuitable-frames" (0xffffb4a0) "ediff-prepare-error-list" (0xffffba58) "ediff-setup-diff-regions" (0xffffbfa8) "ediff-setup" (0xffffcac8) "ediff-buffers-internal" (0xffffd0d0) "ediff-buffers" (0xffffd530) "my-diffs-b" (0xffffda90) "funcall-interactively" (0xffffda88) "call-interactively" (0xffffdd40) "command-execute" (0xffffe2a8) (gdb) frame 3 #3 0x00000000004c6a4d in decode_next_wMajor mode: Text Minor modes in effect: pop-up-mini-mode: t shell-dirtrack-mode: t scroll-restore-mode: t show-paren-mode: t tooltip-mode: t electric-indent-mode: t mouse-wheel-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t temp-buffer-resize-mode: t column-number-mode: t line-number-mode: t auto-fill-function: do-auto-fill transient-mark-mode: t Load-path shadows: None found. Features: (shadow mail-extr warnings emacsbug message rmc puny rfc822 mml mml-sec epa derived epg epg-config gnus-util rmail rmail-loaddefs auth-source password-cache json map mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils smerge-mode diff mule-util eieio-opt cl-extra speedbar ezimage dframe dabbrev etags fileloop generator xref cl-seq project eieio eieio-core eieio-loaddefs minibuf-eldef time-date subr-x shortdoc thingatpt help-fns radix-tree help-mode speck cl-macs pop-up-mini vc cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs vc-git diff-mode vc-dispatcher bug-reference elp ediff-vers ediff ediff-merg ediff-mult ediff-wind ediff-diff ediff-help ediff-init ediff-util local-tags info-look find-func elinfo-support elinfo texinfo info shell pcomplete comint ansi-color ring sidebar bookmark seq byte-opt bytecomp byte-compile cconv text-property-search sort m&d scroll-restore regexp-lock time-stamp eldoc-tooltip pcase easy-mmode find-dired dired dired-loaddefs cus-edit pp cus-start cus-load wid-edit cl-loaddefs cl-lib jka-compr paren ls-lisp gv iso-transl tooltip eldoc electric uniquify ediff-hook vc-hooks lisp-float-type mwheel term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode elisp-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core term/tty-colors frame minibuffer cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite charscript charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray cl-preloaded nadvice button loaddefs faces cus-face macroexp files window text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote threads dbusbind inotify dynamic-setting system-font-setting font-render-setting cairo move-toolbar gtk x-toolkit x multi-tty make-network-process emacs) Memory information: ((conses 16 328334 70021) (symbols 48 17143 1) (strings 32 52277 4856) (string-bytes 1 1699127) (vectors 16 33942) (vector-slots 8 1202337 161897) (floats 8 170 554) (intervals 56 19456 1549) (buffers 1008 42)) indow_args (window=0x7fffffffa808, minibuf=0x7fffffffa800, all_frames=0x7fffffffa7f8) at ../../src/window.c:2891 2891 *minibuf = this_minibuffer_depth (XWINDOW (miniwin)->contents) (gdb) p miniwin $1 = XIL(0) (gdb) frame 5 #5 0x00000000004c7086 in Fnext_window (window=XIL(0x2b04405), minibuf=XIL(0), all_frames=XIL(0x30)) at ../../src/window.c:3023 3023 return next_window (window, minibuf, all_frames, true); (gdb) p window $4 = XIL(0x2b04405) (gdb) p XWINDOW (window)->contents $5 = XIL(0x2d46a85) (gdb) xpr Lisp_Vectorlike PVEC_BUFFER $6 = (struct buffer *) 0x2d46a80 0x1fadde8 " *tip*" (gdb) Presumably, commit c7c154bb5756e0ae71d342c5d8aabf725877f186 is directly responsible for the crash. It's triggered by the (other-window 1 t) call in `ediff-skip-unsuitable-frames' which selects the tooltip window which has no minibuffer. Patch attached, but we probably should decide whether to consider tooltip windows in `next-window' or `other-window' at all. See also https://lists.gnu.org/archive/html/emacs-devel/2018-02/msg00694.html martin --------------AD4405D0F47339962EB4E17A Content-Type: text/x-patch; name="window.c.diff" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="window.c.diff" diff --git a/src/window.c b/src/window.c index eb16e2a433..6da804bbd9 100644 --- a/src/window.c +++ b/src/window.c @@ -2668,7 +2668,7 @@ decode_next_window_args (Lisp_Object *window, Lisp_Object *minibuf, Lisp_Object XSETWINDOW (*window, w); /* MINIBUF nil may or may not include minibuffers. Decide if it does. */ - if (NILP (*minibuf)) + if (WINDOWP (miniwin) & NILP (*minibuf)) *minibuf = this_minibuffer_depth (XWINDOW (miniwin)->contents) ? miniwin : Qlambda; @@ -2682,9 +2682,7 @@ decode_next_window_args (Lisp_Object *window, Lisp_Object *minibuf, Lisp_Object /* ALL_FRAMES nil doesn't specify which frames to include. */ if (NILP (*all_frames)) *all_frames - = (!EQ (*minibuf, Qlambda) - ? FRAME_MINIBUF_WINDOW (XFRAME (w->frame)) - : Qnil); + = (WINDOWP (miniwin) && !EQ (*minibuf, Qlambda)) ? miniwin : Qnil; else if (EQ (*all_frames, Qvisible)) ; else if (EQ (*all_frames, make_fixnum (0))) --------------AD4405D0F47339962EB4E17A--