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bug#28630: 27.0.50; C-g while a non-main thread is sitting crashes Emacs
From: |
Alex |
Subject: |
bug#28630: 27.0.50; C-g while a non-main thread is sitting crashes Emacs |
Date: |
Thu, 28 Sep 2017 01:22:58 -0600 |
Evaluate the following in emacs -Q:
(make-thread
(lambda ()
(message "hello")
(sit-for 2)
(message "there")))
Executing C-g before this finishes crashes Emacs. Here's a backtrace:
#0 0x00007fffefa8bfcf in __GI_raise (sig=sig@entry=6) at
../sysdeps/unix/sysv/linux/raise.c:51
#1 0x00007fffefa8d3fa in __GI_abort () at abort.c:89
#2 0x00007fffefac9bd0 in __libc_message (do_abort=do_abort@entry=2,
fmt=fmt@entry=0x7fffefbbd2c5 "*** %s ***: %s terminated\n") at
../sysdeps/posix/libc_fatal.c:175
#3 0x00007fffefb521b7 in __GI___fortify_fail (msg=0x7fffefbbd284 <longjmp_msg>
"longjmp causes uninitialized stack frame") at fortify_fail.c:30
#4 0x00007fffefb520ed in ____longjmp_chk () at
../sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S:100
#5 0x00007fffefb5204b in __longjmp_chk (env=env@entry=0xbbd960 <getcjmp>,
val=val@entry=1) at ../setjmp/longjmp.c:38
#6 0x00000000004f3007 in quit_throw_to_read_char
(from_signal=from_signal@entry=false) at keyboard.c:10537
#7 0x0000000000501a4c in set_waiting_for_input
(time_to_clear=time_to_clear@entry=0x7fffffffd940) at keyboard.c:10311
#8 0x00000000005a5d6d in wait_reading_process_output
(time_limit=time_limit@entry=30, nsecs=nsecs@entry=0,
read_kbd=read_kbd@entry=-1, do_display=do_display@entry=true,
wait_for_cell=...,
wait_for_cell@entry=..., wait_proc=wait_proc@entry=0x0, just_wait_proc=0)
at process.c:5172
#9 0x0000000000424000 in sit_for (timeout=..., reading=reading@entry=true,
display_option=display_option@entry=1)
at dispnew.c:5764
#10 0x00000000004fdeef in read_char (commandflag=commandflag@entry=1, map=...,
map@entry=..., prev_event=...,
used_mouse_menu=used_mouse_menu@entry=0x7fffffffe31b,
end_time=end_time@entry=0x0)
at keyboard.c:2724
#11 0x00000000004feb2c in read_key_sequence
(keybuf=keybuf@entry=0x7fffffffe420, prompt=...,
prompt@entry=..., dont_downcase_last=dont_downcase_last@entry=false,
can_return_switch_frame=can_return_switch_frame@entry=true,
fix_current_buffer=fix_current_buffer@entry=true,
prevent_redisplay=prevent_redisplay@entry=false, bufsize=30) at keyboard.c:9154
#12 0x0000000000500576 in command_loop_1 () at keyboard.c:1372
#13 0x000000000056495e in internal_condition_case (bfun=bfun@entry=0x500350
<command_loop_1>, handlers=...,
handlers@entry=..., hfun=hfun@entry=0x4f6eb0 <cmd_error>) at eval.c:1332
#14 0x00000000004f2444 in command_loop_2 (ignore=..., ignore@entry=...) at
keyboard.c:1114
#15 0x00000000005648cd in internal_catch (tag=..., tag@entry=...,
func=func@entry=0x4f2420 <command_loop_2>, arg=...,
arg@entry=...) at eval.c:1097
#16 0x00000000004f23db in command_loop () at keyboard.c:1093
#17 0x00000000004f6ac3 in recursive_edit_1 () at keyboard.c:699
#18 0x00000000004f6de6 in Frecursive_edit () at keyboard.c:770
#19 0x000000000041a3f1 in main (argc=<optimized out>,
#argv=0x7fffffffe7a8) at emacs.c:1713
In GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.18)
of 2017-09-28 built on lylat
Repository revision: 1f02ae39310f15bf683642b9aee1cf162bd391e6
Windowing system distributor 'The X.Org Foundation', version 11.0.11903000
System Description: Debian GNU/Linux testing (buster)
Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS NOTIFY
ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 LCMS2
- bug#28630: 27.0.50; C-g while a non-main thread is sitting crashes Emacs,
Alex <=