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bug#26615: Recent Emacs crashes when PC is suspended and using tabbar-ru


From: Angelo Graziosi
Subject: bug#26615: Recent Emacs crashes when PC is suspended and using tabbar-ruler package
Date: Sun, 23 Apr 2017 00:38:22 +0200
User-agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.0.1

My Emacs builds [1] from master, I did in April, crash when PC is suspended and then waked up. This seems related to the use of tabbar-ruler package. This is the minimal init.el file with which I can reproduce the issue:

----------------------------------------------
$ cat .emacs.d/init.el

(when (>= emacs-major-version 24)
  (require 'package)
  (package-initialize))

(require 'tabbar-ruler)
----------------------------------------------

Commenting out the line "(require 'tabbar-ruler)", the crash does not occur. Also starting Emacs with "-Q" option does not give the crash.

It seems, I cannot reproduce the crash on other systems (GNU/Linux, macOS)

This crash occurs only with April builds (and on Windows). I cannot reproduce the crash (also with a full init.el file) with builds I did, for example, in March (<= 20170327, r128789.8ce827426e-1)

I wonder if someone could reproduce the crash.. Mayebe one need to try few times so see the crash. Usually it occurs regularly.

Below [2] there is what I got following the suggestions of the crash window. Please, notice that I have some reluctance (i.e., _repulsion_) to use debuggers..

Ciao, Angelo.

-----
[1] Builds on Win 10 15063.138, on MSYS2/MinGW64:

./autogen.sh
./configure --prefix=/c/LocalApps/Emacs
make -j3
...

[2] $ gdb -p 5424
GNU gdb (GDB) 7.12.1
Copyright (C) 2017 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-w64-mingw32".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word".
Attaching to process 5424
[New Thread 5424.0x1f44]
[New Thread 5424.0x1a58]
[New Thread 5424.0x1360]
[New Thread 5424.0xab0]
[New Thread 5424.0x1e4c]
Reading symbols from C:\LocalApps\Emacs\bin\emacs.exe...done.
(gdb) continue
Continuing.
[Thread 5424.0x1e4c exited with code 0]

Thread 1 received signal SIGTRAP, Trace/breakpoint trap.
[Switching to Thread 5424.0x1f44]
0x00007ff9e93ca963 in KERNELBASE!DebugBreak ()
   from C:\WINDOWS\System32\KernelBase.dll
(gdb) bt
#0  0x00007ff9e93ca963 in KERNELBASE!DebugBreak ()
   from C:\WINDOWS\System32\KernelBase.dll
#1  0x0000000400180078 in emacs_abort () at w32fns.c:10875
#2  0x00000004000acd89 in terminate_due_to_signal (sig=11,
    backtrace_limit=<optimized out>) at emacs.c:393
#3  0x00000004000c4b5e in handle_fatal_signal (sig=13708528, address@hidden)
    at sysdep.c:1714
#4  0x00000004000c593c in deliver_thread_signal (sig=11,
    handler=0x4000c4b50 <handle_fatal_signal>) at sysdep.c:1688
#5  0x00000004001d2468 in _gnu_exception_handler (exception_data=0xbfd580)
at C:/repo/mingw-w64-crt-git/src/mingw-w64/mingw-w64-crt/crt/crt_handler.c:223
#6  0x00007ff9ec2f6476 in ntdll!__C_specific_handler ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
#7 0x00007ff9ec30a08d in ntdll!.chkstk () from C:\WINDOWS\SYSTEM32\ntdll.dll
#8  0x00007ff9ec279c58 in ntdll!RtlLookupFunctionEntry ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
#9  0x00007ff9ec30910e in ntdll!KiUserExceptionDispatcher ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
#10 0x000000040018f043 in w32_mouse_position (fp=0xbfe3b0, insist=-1,
bar_window=0xbfe3b8, part=0xbfe3a8, x=<optimized out>, y=<optimized out>,
    time=<optimized out>) at w32term.c:3505
#11 0x000000040000acfc in Fmouse_pixel_position () at frame.c:2082
#12 0x000000040011dcd2 in Ffuncall (address@hidden,
    address@hidden) at eval.c:2742
#13 0x0000000400153312 in exec_byte_code (bytestr=<optimized out>,
    vector=74897728, maxdepth=<optimized out>,
    address@hidden, address@hidden,
    args=<optimized out>, address@hidden) at bytecode.c:641
#14 0x000000040011d86a in funcall_lambda (fun=17190255061,
address@hidden, address@hidden) at eval.c:3020
#15 0x000000040011dc4b in Ffuncall (address@hidden,
    address@hidden) at eval.c:2756
#16 0x000000040011f74c in Fapply (nargs=2, args=0xbfe8d8) at eval.c:2326
#17 0x000000040011dcd2 in Ffuncall (address@hidden,
    address@hidden) at eval.c:2742
#18 0x0000000400153312 in exec_byte_code (bytestr=<optimized out>, vector=-3,
    maxdepth=<optimized out>, address@hidden,
    address@hidden, args=<optimized out>, address@hidden)
    at bytecode.c:641
#19 0x000000040011d980 in funcall_lambda (fun=17183382013,
address@hidden, address@hidden) at eval.c:2942
#20 0x000000040011dc4b in Ffuncall (address@hidden,
    address@hidden) at eval.c:2756
#21 0x000000040011dd8d in call1 (address@hidden, address@hidden)
    at eval.c:2604
#22 0x00000004000b3945 in timer_check_2 (idle_timers=<optimized out>,
    timers=<optimized out>) at keyboard.c:4467
#23 timer_check () at keyboard.c:4529
#24 0x00000004000b3dfa in readable_events (flags=1) at keyboard.c:3345
#25 0x00000004000b46a5 in get_input_pending (address@hidden)
    at keyboard.c:6799
#26 0x00000004000b6a70 in detect_input_pending_run_timers (
    address@hidden) at keyboard.c:9926
#27 0x00000004000b7873 in read_char (commandflag=160, address@hidden,
    map=1, address@hidden, prev_event=17207923560,
    used_mouse_menu=0x1f00000000, address@hidden,
    address@hidden) at keyboard.c:2734
#28 0x00000004000b9cb3 in read_key_sequence (address@hidden,
address@hidden, address@hidden,
    address@hidden,
    address@hidden,
    address@hidden, bufsize=30)
    at keyboard.c:9122
#29 0x00000004000bb833 in command_loop_1 () at keyboard.c:1370
#30 0x000000040011c1fd in internal_condition_case (
    address@hidden <command_loop_1>,
    address@hidden, address@hidden <cmd_error>)
    at eval.c:1324
#31 0x00000004000ad3e4 in command_loop_2 (ignore=<optimized out>)
    at keyboard.c:1112
#32 0x000000040011c18b in internal_catch (address@hidden,
    address@hidden <command_loop_2>, address@hidden)
    at eval.c:1091
#33 0x00000004000ad397 in command_loop () at keyboard.c:1091
#34 0x0000000000000000 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb) q
A debugging session is active.

        Inferior 1 [process 5424] will be detached.

Quit anyway? (y or n) [answered Y; input not from terminal]
Detaching from program: C:\LocalApps\Emacs\bin\emacs.exe, Pid 5424





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