Emacs sometimes crashes when I type C-g just after closing a process.
I've only seen this happen after the following recipe using Magit on MS
Windows. (Not sure whether or not Magit is essential.)
Recipe:
Visit a git repo.
C-x g ; magit-status
! g ; magit-run-popup, magit-run-git-gui
;; A nasty-looking window pops up (Git GUI, I presume). Close it.
C-g ; Crashes.
The crash is a SIGTRAP and the stack trace of the faulting thread is
as follows:
#0 0x000007fefcb831f3 in KERNELBASE!DebugBreak ()
from C:\Windows\system32\KernelBase.dll
No symbol table info available.
#1 0x0000000400244966 in emacs_abort () at w32fns.c:10931
button = 6
#2 0x00000004001a74ce in signal_or_quit (error_symbol=..., data=...,
keyboard_quit=true) at eval.c:1535
conditions = {i = 8565584}
string = {i = 51800}
real_error_symbol = {i = 51800}
clause = {i = 0}
h = 0x0
#3 0x00000004001a7448 in quit () at eval.c:1513
No locals.
#4 0x00000004001a7379 in process_quit_flag () at eval.c:1460
flag = {i = 60032}
#5 0x00000004001a73ce in maybe_quit () at eval.c:1483
No locals.
#6 0x000000040027d085 in waitpid (pid=10708, status=0x0, options=1)
at w32proc.c:1452
active = 0
retval = 8566456
nh = 1
cp = 0x401bca5a0 <child_procs+288>
cps = {0x401bca5a0 <child_procs+288>, 0xffffffffffffffff, 0x0, 0x1c,
0x82b598, 0xffffffffffffffff, 0x4, 0x82b5f0, 0x7,
0xffffffffffffd8f0, 0x48, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x15c, 0x158, 0x1e0, 0x284, 0x258, 0x294, 0x3c, 0x0, 0x1, 0x0,
0x1, 0x76d316e3 <WaitForMultipleObjectsEx+179>}
wait_hnd = {0x258, 0x0, 0xebb7230, 0x100000001, 0x82b4a0,
0x40010f048 <unblock_input+24>, 0x0, 0x1, 0x0, 0x0, 0x82b530,
0x40025b3d4 <w32_read_socket+9323>, 0x82b5d0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x100000000, 0x1c, 0x1c, 0xffffffff, 0x1, 0x1,
0x600000006, 0x6, 0x0, 0x0, 0x1b, 0x1600000000,
0x7fefcb51430 <KERNELBASE!GetCurrentProcess+64>}
timeout_ms = 0
dont_wait = 1
#7 0x0000000400122068 in get_child_status (child=10708, status=0x0,
options=1, interruptible=false) at sysdep.c:397
pid = 0
#8 0x0000000400122157 in child_status_changed (child=10708, status=0x0,
options=0) at sysdep.c:443
No locals.
#9 0x000000040020a229 in handle_child_signal (sig=18) at process.c:7049
deleted_pid = 10708
all_pids_are_fixnums = false
head = {i = 164145587}
xpid = {i = 42834}
tail = {i = 164145571}
proc = {i = 0}
#10 0x0000000400122f97 in deliver_process_signal (sig=18,
handler=0x40020a16d <handle_child_signal>) at sysdep.c:1659
old_errno = 22
on_main_thread = true
#11 0x000000040020a400 in deliver_child_signal (sig=18) at process.c:7098
No locals.
#12 0x000000040027ecc8 in sys_select (nfds=7, rfds=0x82c108, wfds=0x82c100,
efds=0x0, timeout=0x82c0e0, ignored=0x0) at w32proc.c:2403
orfds = {bits = {81, 0}}
owfds = {bits = {0, 0}}
timeout_ms = 1
start_time = 979426646
i = 7
nh = 4
nc = 2
nr = 0
active = 4
cp = 0x401bca5a0 <child_procs+288>
cps = {0x401bca5a0 <child_procs+288>, 0x401bca510 <child_procs+144>,
0x82bd60, 0x0, 0x0, 0x0, 0x0, 0x0, 0x82bca0,
0x4000f98ef <builtin_lisp_symbol+49>, 0x4006a5ee0 <lispsym>, 0x0,
0x82bcc0, 0x4000f9bb9 <XSETCDR+25>, 0x846cdf3,
0x4000fb21b <CHECK_LIST_END+36>, 0x0, 0x846cdf3, 0x82bd00,
0x4000f9f14 <ASIZE+21>, 0x59a482e4, 0x1b4d6cf8, 0x82bd70,
0x400196f4a <lisp_to_timespec+155>, 0x82bd90, 0x59a482e4,
0x1b4d6cf8, 0x6fd4b, 0x0, 0x40022f219 <sys_mutex_unlock+25>, 0x0,
0x82be80}
wait_hnd = {0x15c, 0x158, 0x1e0, 0x284, 0x258, 0x294,
0x0 <repeats 72 times>, 0x8, 0x7fefcb518da <ResetEvent+10>, 0x0,
0x40025f912 <drain_message_queue+107>, 0x0, 0x82bc30, 0x0,
0x40025f704 <get_next_msg+630>, 0x0, 0x0, 0x0, 0x0, 0x82bc30,
0x40010f048 <unblock_input+24>, 0x0, 0x0, 0x0, 0x0}
fdindex = {-1, 0, 4, 6, 0 <repeats 60 times>}
#13 0x000000040022e45e in really_call_select (arg=0x82bf40) at thread.c:566
sa = 0x82bf40
self = 0x4006b9a60 <main_thread>
oldset = 4294967295
#14 0x00000004001829da in flush_stack_call_func (
func=0x40022e3cc <really_call_select>, arg=0x82bf40) at alloc.c:5158
end = 0x82be00
self = 0x4006b9a60 <main_thread>
sentry = {o = {__max_align_ll = 1503953635,
__max_align_ld = <invalid float value>}}
#15 0x0000000000000000 in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
In GNU Emacs 26.0.50 (build 1, x86_64-w64-mingw32)
of 2017-08-22 built on 60678UHB
Repository revision: 036a92eb006cc175d13ad7ada80225eb8340724d
Windowing system distributor 'Microsoft Corp.', version 6.1.7601
Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
<nil> <wheel-down> is undefined
<nil> <double-wheel-down> is undefined
<nil> <triple-wheel-down> is undefined
Configured using:
'configure --prefix=/mingw64 --config-cache --with-modules
--without-pop CFLAGS=-O2'
Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND NOTIFY ACL GNUTLS LIBXML2 ZLIB
TOOLKIT_SCROLL_BARS MODULES
Important settings:
value of $LANG: ENG
locale-coding-system: cp1252
Major mode: Lisp Interaction
Minor modes in effect:
tooltip-mode: t
global-eldoc-mode: t
eldoc-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
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
Load-path shadows:
None found.
Features:
(shadow sort mail-extr emacsbug message subr-x puny seq byte-opt gv
bytecomp byte-compile cconv cl-loaddefs cl-lib dired dired-loaddefs
format-spec rfc822 mml easymenu mml-sec password-cache epa derived epg
epg-config gnus-util rmail rmail-loaddefs mm-decode mm-bodies mm-encode
mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047
rfc2045 ietf-drums mm-util mail-prsvr mail-utils elec-pair time-date
mule-util tooltip eldoc electric uniquify ediff-hook vc-hooks
lisp-float-type mwheel dos-w32 ls-lisp disp-table term/w32-win w32-win
w32-vars term/common-win tool-bar dnd fontset image regexp-opt fringe
tabulated-list replace newcomment text-mode elisp-mode lisp-mode
prog-mode register page menu-bar rfn-eshadow isearch timer select
scroll-bar mouse jit-lock font-lock syntax facemenu font-core
term/tty-colors frame 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 minibuffer cl-preloaded nadvice loaddefs
button faces cus-face macroexp files text-properties overlay sha1 md5
base64 format env code-pages mule custom widget hashtable-print-readable
backquote w32notify w32 multi-tty make-network-process emacs)
Memory information:
((conses 16 98353 8762)
(symbols 56 20130 1)
(miscs 48 40 107)
(strings 32 30128 1430)
(string-bytes 1 780999)
(vectors 16 14782)
(vector-slots 8 489133 4992)
(floats 8 53 142)
(intervals 56 235 0)
(buffers 992 12))
This bug report was last modified 7 years and 349 days ago.