GNU bug report logs - #61507
29.0.60; "free(): invalid pointer" on latest emacs-29 commit when loading init.el

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Simon Pugnet <simon <at> polaris64.net>
Subject: bug#61507: closed (Re: bug#61507: 29.0.60; "free(): invalid
 pointer" on latest emacs-29 commit when loading init.el)
Date: Wed, 06 Sep 2023 00:05:02 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#61507: 29.0.60; "free(): invalid pointer" on latest emacs-29 commit when loading init.el

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 61507 <at> debbugs.gnu.org.

-- 
61507: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=61507
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Stefan Kangas <stefankangas <at> gmail.com>
To: Gregory Heytings <gregory <at> heytings.org>
Cc: 61507-done <at> debbugs.gnu.org, Simon Pugnet <simon <at> polaris64.net>
Subject: Re: bug#61507: 29.0.60; "free(): invalid pointer" on latest emacs-29
 commit when loading init.el
Date: Tue, 5 Sep 2023 17:04:30 -0700

Gregory Heytings <gregory <at> heytings.org> writes:

>>
>> Hi Gregory,
>>
>> Yes that does indeed seem to fix the problem.
>>
>
> Thanks for the swift feedback!

I'm therefore closing this bug report.

[Message part 3 (message/rfc822, inline)]

From: Simon Pugnet <simon <at> polaris64.net>
To: bug-gnu-emacs <at> gnu.org
Subject: 29.0.60; "free(): invalid pointer" on latest emacs-29 commit when
 loading init.el
Date: Tue, 14 Feb 2023 14:01:19 +0000

[Message part 4 (text/plain, inline)]

Dear Emacs maintainers,

I've just built Emacs from commit 
4bb27a5ca93f8269d9cd4b85fd948176304236eb on the emacs-29 branch and it 
fails to launch with the following message when loading my init.el 
file: -

free(): invalid pointer
Fatal error 6: Aborted

Launching with -q or -Q works fine. Checking out a previous commit 
(cc30422825a5acf460d026bfe912b327b70dedcf) and rebuilding causes 
everything to work as expected again too.

I've tried `make extraclean` and then `make bootstrap` in order to 
clear out any old byte-compiled or native-compiled elisp as I read 
another message earlier saying that a recent change might have caused 
a backwards incompatible change.

Output of `bt full` in GDB: -

#0  0x00007ffff34a08ec in  () at /usr/lib/libc.so.6
#1  0x00007ffff3451ea8 in raise () at /usr/lib/libc.so.6
#2  0x00007ffff343b53d in abort () at /usr/lib/libc.so.6
#3  0x00007ffff343c29e in  () at /usr/lib/libc.so.6
#4  0x00007ffff34aa657 in  () at /usr/lib/libc.so.6
#5  0x00007ffff34ac4bc in  () at /usr/lib/libc.so.6
#6  0x00007ffff34aee63 in free () at /usr/lib/libc.so.6
#7  0x0000555555741685 in xfree (block=<optimized out>) at alloc.c:814
#8  0x000055555577163c in safe_free (sa_count=...) at 
/storage/Work/personal/emacs/src/lisp.h:5385
       arg_vector = 0x7fffffffcf40
       tem = 0x0
       sa_avail = <optimized out>
       sa_count = {bytes = 1280}
       numargs = 0
       args_left = <optimized out>
#9  apply_lambda (fun=0x55555c64b685, args=<optimized out>, count=...) 
at eval.c:3109
       arg_vector = 0x7fffffffcf40
       tem = 0x0
       sa_avail = <optimized out>
       sa_count = {bytes = 1280}
       numargs = 0
       args_left = <optimized out>
#10 0x000055555576f922 in eval_sub (form=<optimized out>) at 
eval.c:2588
       original_fun = 0xd49110
       original_args = 0x0
       fun = <optimized out>
       val = <optimized out>
       funcar = <optimized out>
       argvals = {0x0, 0x555556020633, 0x1, 0x7fffffffd090, 0x2, 
       0x555555779da3 <mapcar1+115>, 0x7fffffffd0a0, 0x2aaa992060c0}
#11 0x0000555555772511 in internal_lisp_condition_case (var=0xfa3690, 
bodyform=0x55555c2d8383, handlers=<optimized out>) at eval.c:1428
       oldhandlerlist = 0x555555ee3560
       clausenb = 1
       success_handler = 0x0
       clauses = 0x7fffffffd080
       result = 0x555555dc3460 <freloc>
#12 0x000055555576ffba in eval_sub (form=<optimized out>) at 
eval.c:2449
       args_left = 0x55555c2d7193
       numargs = 3
       original_fun = 0x4f80
       original_args = 0x55555c2d7193
       fun = <optimized out>
       val = <optimized out>
       funcar = <optimized out>
       argvals = {0x4a0, 0x7fffffffd1a8, 0x7fffffffd1a0, 
       0xffe12e80bef3ce00, 0x6, 0x0, 0x1, 0x55555c2d9b95}
#13 0x00005555557702ad in Fprogn (body=0x55555c2d7b93) at eval.c:436
       form = <optimized out>
       val = 0x0
#14 0x000055555576ffba in eval_sub (form=<optimized out>) at 
eval.c:2449
       args_left = 0x55555c2d71c3
       numargs = 2
       original_fun = 0xd620
       original_args = 0x55555c2d71c3
       fun = <optimized out>
       val = <optimized out>
       funcar = <optimized out>
       argvals = {0x5555560207c3, 0xffe12e80bef3ce00, 
       0x4000000011000000, 0x55555c2d78f3, 0x7fffffffd300, 
       0x55555576ffba <eval_sub+2266>, 0x1, 0x55555c2d7ff0}
#15 0x0000555555772511 in internal_lisp_condition_case (var=0xfa3690, 
bodyform=0x55555c2d71b3, handlers=<optimized out>) at eval.c:1428
       oldhandlerlist = 0x555555ffbd30
       clausenb = 1
       success_handler = 0x0
       clauses = 0x7fffffffd2b0
       result = 0x55555575901b <Fset_default+11>
#16 0x000055555576ffba in eval_sub (form=<optimized out>) at 
eval.c:2449
       args_left = 0x55555c2d6c53
       numargs = 3
       original_fun = 0x4f80
       original_args = 0x55555c2d6c53
       fun = <optimized out>
       val = <optimized out>
       funcar = <optimized out>
       argvals = {0x4, 0x55555576c480 <Fapply+256>, 0x7fffef2bd695, 
       0xffe12e80bef3ce00, 0x55555c2cd0e3, 0x2, 0x4c0, 
       0x7fffffffd408}
#17 0x00005555557702ad in Fprogn (body=0x0) at eval.c:436
       form = <optimized out>
       val = 0x6524060
#18 0x000055555576ffba in eval_sub (form=<optimized out>) at 
eval.c:2449
       args_left = 0x55555c2d6c83
       numargs = 2
       original_fun = 0xd620
       original_args = 0x55555c2d6c83
       fun = <optimized out>
       val = <optimized out>
       funcar = <optimized out>
       argvals = {0x11, 0x1, 0xb, 0x2aaa994558c0, 0x0, 0x2, 
       0x55555c2d8333, 0x555555dc3460 <freloc>}
#19 0x00005555557702ad in Fprogn (body=0x0) at eval.c:436
       form = <optimized out>
       val = 0x0
#20 0x000055555576ffba in eval_sub (form=<optimized out>) at 
eval.c:2449
       args_left = 0x55555c2d6cb3
       numargs = 1
       original_fun = 0xd620
       original_args = 0x55555c2d6cb3
       fun = <optimized out>
       val = <optimized out>
       funcar = <optimized out>
       argvals = {0x55555c2d8333, 0x7fffeecdd4b9 
       <F696e7465726e616c2d6d6163726f657870616e642d666f722d6c6f6164_internal_macroexpand_for_load_0+233>, 
       0x7fffffff006c, 0x555555dc3460 <freloc>, 0x55555c2d7c23, 
       0xffe12e80bef3ce00, 0x55555c2d6cc3, 0x55555c2d6cd3}
#21 0x000055555576ffba in eval_sub (form=<optimized out>) at 
eval.c:2449
       args_left = 0x55555c2d6cd3
       numargs = 2
       original_fun = 0x9000
       original_args = 0x55555c2d6cd3
       fun = <optimized out>
       val = <optimized out>
       funcar = <optimized out>
       argvals = {0x2aaa99603200, 0x555556024e88, 0x0, 0x5555557979b8 
       <readevalloop_eager_expand_eval+376>, 0x0, 0xffe12e80bef3ce00, 
       0x2aaa99603200, 0x55555c2d7c23}
#22 0x00005555557a0009 in readevalloop (readcharfun=0x555556024e8d, 
infile0=0x0, sourcename=0x555556030204, printflag=false, 
unibyte=<optimized out>, readfun=0x0, start=0x0, end=<optimized out>) 
at lread.c:2347
       c = <optimized out>
       val = 0x55555c2d8333
       b = <optimized out>
       continue_reading_p = true
       lex_bound = <optimized out>
       whole_buffer = true
       first_sexp = <optimized out>
       macroexpand = 0x2aaa99603200
#23 0x00005555557a12c7 in Feval_buffer (buffer=<optimized out>, 
printflag=0x0, filename=0x555556030204, unibyte=0x0, 
do_allow_print=<optimized out>) at lread.c:2420
       tem = <optimized out>
       buf = 0x555556024e8d
#24 0x00007fffeeadb478 in 
F6c6f61642d776974682d636f64652d636f6e76657273696f6e_load_with_code_conversion_0 
() at 
/storage/Work/personal/emacs/src/../native-lisp/29.0.60-349da14f/preloaded/mule-3352613d-1fec1ce7.eln
#25 0x000055555576c266 in Ffuncall (nargs=nargs <at> entry=5, 
args=args <at> entry=0x7fffffffd9c0) at eval.c:2995
       val = <optimized out>
#26 0x00005555557a0f07 in call4 (arg4=0x30, arg3=<optimized out>, 
arg2=0x555556030204, arg1=<optimized out>, fn=<optimized out>) at 
/storage/Work/personal/emacs/src/lisp.h:3269
       val = <optimized out>
       stream = 0x0
       fd = 19
       found = 0x555556030204
       efound = <optimized out>
       hist_file_name = 0x555556030204
       newer = false
       compiled = false
       handler = <optimized out>
       fmode = 0x55555585a19c "r"
       version = <optimized out>
       no_native = <optimized out>
       is_module = false
       is_native_elisp = false
       found_eff = <optimized out>
       is_elc = false
       input = {stream = 0x0, lookahead = 0 '\000', buf = 
       "\000\000\000"}
#27 Fload (file=0x555556030084, noerror=<optimized out>, 
nomessage=<optimized out>, nosuffix=<optimized out>, 
must_suffix=<optimized out>) at lread.c:1484
       val = <optimized out>
       stream = 0x0
       fd = 19
       found = 0x555556030204
       efound = <optimized out>
       hist_file_name = 0x555556030204
       newer = false
       compiled = false
       handler = <optimized out>
       fmode = 0x55555585a19c "r"
       version = <optimized out>
       no_native = <optimized out>
       is_module = false
       is_native_elisp = false
       found_eff = <optimized out>
       is_elc = false
       input = {stream = 0x0, lookahead = 0 '\000', buf = 
       "\000\000\000"}
#28 0x000055555576c266 in Ffuncall (nargs=4, args=0x7fffffffdb20) at 
eval.c:2995
       val = <optimized out>
#29 0x00007fffeeb05276 in 
F737461727475702d2d6c6f61642d757365722d696e69742d66696c65_startup__load_user_init_file_0 
() at 
/storage/Work/personal/emacs/src/../native-lisp/29.0.60-349da14f/preloaded/startup-bbc6ea72-476504a2.eln
#30 0x000055555576c266 in Ffuncall (nargs=4, args=0x7fffffffdc10) at 
eval.c:2995
       val = <optimized out>
#31 0x00007fffeeb07268 in F636f6d6d616e642d6c696e65_command_line_0 () 
at 
/storage/Work/personal/emacs/src/../native-lisp/29.0.60-349da14f/preloaded/startup-bbc6ea72-476504a2.eln
#32 0x000055555576c266 in Ffuncall (nargs=1, args=0x7fffffffdce8) at 
eval.c:2995
       val = <optimized out>
#33 0x00007fffeeb03460 in 
F6e6f726d616c2d746f702d6c6576656c_normal_top_level_0 () at 
/storage/Work/personal/emacs/src/../native-lisp/29.0.60-349da14f/preloaded/startup-bbc6ea72-476504a2.eln
#34 0x000055555576ffaf in eval_sub (form=<optimized out>) at 
eval.c:2495
       i = <optimized out>
       maxargs = <optimized out>
       args_left = <optimized out>
       numargs = 0
       original_fun = 0x2aaa993b5180
       original_args = 0x0
       fun = <optimized out>
       val = <optimized out>
       funcar = <optimized out>
       argvals = {0x7fffffffde00, 0x555555edff73, 0x555555dc3460 
       <freloc>, 0x0, 0x7fffffffddf8, 0x7fffffffde78, 0x7fffffffde70, 
       0x555555dc3460 <freloc>}
#35 0x0000555555772726 in Feval (form=0x7fffef5695ab, 
lexical=<optimized out>) at eval.c:2361
#36 0x000055555576a8f7 in internal_condition_case 
(bfun=bfun <at> entry=0x5555556da400 <top_level_2>, 
handlers=handlers <at> entry=0x90, hfun=hfun <at> entry=0x5555556e19e0 
<cmd_error>) at eval.c:1474
       val = <optimized out>
       c = 0x5555560490c0
#37 0x00005555556dad86 in top_level_1 (ignore=ignore <at> entry=0x0) at 
keyboard.c:1141
#38 0x000055555576a851 in internal_catch (tag=tag <at> entry=0x10050, 
func=func <at> entry=0x5555556dad60 <top_level_1>, arg=arg <at> entry=0x0) at 
eval.c:1197
       val = <optimized out>
       c = 0x55555604ae00
#39 0x00005555556da37f in command_loop () at keyboard.c:1101
#40 0x00005555556e1562 in recursive_edit_1 () at keyboard.c:711
       val = <optimized out>
#41 0x00005555556e18f0 in Frecursive_edit () at keyboard.c:794
       buffer = <optimized out>
#42 0x00005555555aca5f in main (argc=1, argv=0x7fffffffe1b8) at 
emacs.c:2529
       stack_bottom_variable = 0x555555e37a40
       no_loadup = false
       junk = 0x0
       dname_arg = 0x0
       ch_to_dir = 0x0
       original_pwd = <optimized out>
       dump_mode = <optimized out>
       skip_args = 0
       temacs = 0x0
       attempt_load_pdump = <optimized out>
       only_version = false
       rlim = {rlim_cur = 10022912, rlim_max = 18446744073709551615}
       lc_all = <optimized out>
       sockfd = -1
       module_assertions = <optimized out>


In GNU Emacs 29.0.60 (build 1, x86_64-pc-linux-gnu, GTK+ Version
3.24.36, cairo version 1.17.8) of 2023-02-14 built on palenque
Repository revision: 4bb27a5ca93f8269d9cd4b85fd948176304236eb
Repository branch: emacs-29
Windowing system distributor 'The X.Org Foundation', version 
11.0.12101007
System Description: Arch Linux

Configured using:
'configure --with-native-compilation --with-json --with-modules
--with-tree-sitter --with-xinput2'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ 
JPEG
JSON LCMS2 LIBOTF LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP 
NOTIFY
INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF
TOOLKIT_SCROLL_BARS TREE_SITTER WEBP X11 XDBE XIM XINPUT2 XPM GTK3 
ZLIB

Important settings:
 value of $LC_CTYPE: en_GB.UTF-8
 value of $LANG: en_GB.UTF-8
 value of $XMODIFIERS: @im=ibus
 locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
 tooltip-mode: t
 global-eldoc-mode: t
 eldoc-mode: t
 show-paren-mode: t
 electric-indent-mode: t
 mouse-wheel-mode: t
 tool-bar-mode: t
 menu-bar-mode: t
 file-name-shadow-mode: t
 global-font-lock-mode: t
 font-lock-mode: t
 blink-cursor-mode: t
 line-number-mode: t
 indent-tabs-mode: t
 transient-mark-mode: t
 auto-composition-mode: t
 auto-encryption-mode: t
 auto-compression-mode: t

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message mailcap yank-media puny dired
dired-loaddefs rfc822 mml mml-sec password-cache epa derived epg 
rfc6068
epg-config gnus-util text-property-search time-date mm-decode 
mm-bodies
mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail
rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils comp 
comp-cstr
warnings icons subr-x rx cl-seq cl-macs gv cl-extra help-mode
cl-loaddefs cl-lib bytecomp byte-compile rmc iso-transl tooltip cconv
eldoc paren electric uniquify ediff-hook vc-hooks lisp-float-type
elisp-mode 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 lisp-mode prog-mode register page tab-bar menu-bar 
rfn-eshadow
isearch easymenu timer select scroll-bar mouse jit-lock font-lock 
syntax
font-core term/tty-colors frame minibuffer nadvice seq simple 
cl-generic
indonesian philippine 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 emoji-zwj charscript charprop case-table epa-hook
jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button 
loaddefs
theme-loaddefs faces cus-face macroexp files window text-properties
overlay sha1 md5 base64 format env code-pages mule custom widget 
keymap
hashtable-print-readable backquote threads dbusbind inotify lcms2
dynamic-setting system-font-setting font-render-setting cairo
move-toolbar gtk x-toolkit xinput2 x multi-tty make-network-process
native-compile emacs)

Memory information:
((conses 16 98683 13034)
(symbols 48 7145 0)
(strings 32 28345 2128)
(string-bytes 1 897813)
(vectors 16 21940)
(vector-slots 8 378753 18583)
(floats 8 43 45)
(intervals 56 219 0)
(buffers 984 11))

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