bug#25172: 26.0.50; Concurrency feature, sit-for doesn't work (crashing

This is the output from the SIGABRT case. Again, there is a lot of information before the actual "bt full" output:

PID: 23905 (emacs)
          UID: 50067 (emartenson)
          GID: 50067 (emartenson)
       Signal: 6 (ABRT)
    Timestamp: Tue 2016-12-13 12:10:49 SGT (4min 54s ago)
Command Line: dist/bin/emacs -Q
   Executable: /home/emartenson/src/emacs/dist/bin/emacs-26.0.50
Control Group: /
        Slice: -.slice
      Boot ID: 45a62f2ad9804a0b81fed25ad8faffab
   Machine ID: 50467f3a69eb4dbea19c8a2972949839
     Hostname: em-desktop
      Storage: /var/lib/systemd/coredump/core.emacs.50067.45a62f2ad9804a0b81fed25ad
8faffab.23905.1481602249000000000000.lz4
      Message: Process 23905 (emacs) of user 50067 dumped core.

               Stack trace of thread 23910:
               #0 0x00007f7e58ee7f5f raise (libpthread.so.0)
               #1 0x0000000000553c66 terminate_due_to_signal (emacs-26.0.50)
               #2 0x0000000000578bd2 emacs_abort (emacs-26.0.50)
               #3 0x00000000005643f7 unblock_input_to (emacs-26.0.50)
               #4 0x000000000056440e unblock_input (emacs-26.0.50)
               #5 0x000000000069fede xg_select (emacs-26.0.50)
               #6 0x0000000000676dad really_call_select (emacs-26.0.50)
               #7 0x00000000005d4a02 flush_stack_call_func (emacs-26.0.50)
               #8 0x0000000000676e2b thread_select (emacs-26.0.50)
               #9 0x0000000000651168 wait_reading_process_output (emacs-26.0.50)
               #10 0x000000000055e010 kbd_buffer_get_event (emacs-26.0.50)
               #11 0x000000000055a894 read_event_from_main_queue (emacs-26.0.50)
               #12 0x000000000055aad5 read_decoded_event_from_main_queue (emacs-26.
0.50)
               #13 0x000000000055bf40 read_char (emacs-26.0.50)
               #14 0x0000000000623c88 read_filtered_event (emacs-26.0.50)
               #15 0x0000000000623f6b Fread_event (emacs-26.0.50)
               #16 0x00000000005f9b66 funcall_subr (emacs-26.0.50)
               #17 0x00000000005f976b Ffuncall (emacs-26.0.50)
               #18 0x00000000006425a9 exec_byte_code (emacs-26.0.50)
               #19 0x00000000005fa16b funcall_lambda (emacs-26.0.50)
               #20 0x00000000005f9ed1 apply_lambda (emacs-26.0.50)
               #21 0x00000000005f85c2 eval_sub (emacs-26.0.50)
               #22 0x00000000005f485d Fprogn (emacs-26.0.50)
               #23 0x00000000005fa482 funcall_lambda (emacs-26.0.50)
               #24 0x00000000005f986d Ffuncall (emacs-26.0.50)
               #25 0x0000000000677065 invoke_thread_function (emacs-26.0.50)
               #26 0x00000000005f64a5 internal_condition_case (emacs-26.0.50)
               #27 0x0000000000677179 run_thread (emacs-26.0.50)
               #28 0x00007f7e58ede454 start_thread (libpthread.so.0)
               #29 0x00007f7e585eb7df __clone (libc.so.6)

               Stack trace of thread 23906:
               #0 0x00007f7e585e248d poll (libc.so.6)
               #1 0x00007f7e5ded9786 n/a (libglib-2.0.so.0)
               #2 0x00007f7e5ded989c g_main_context_iteration (libglib-2.0.so.0)
               #3 0x00007f7e5ded98e1 n/a (libglib-2.0.so.0)
               #4 0x00007f7e5df010d5 n/a (libglib-2.0.so.0)
               #5 0x00007f7e58ede454 start_thread (libpthread.so.0)
               #6 0x00007f7e585eb7df __clone (libc.so.6)

               Stack trace of thread 23905:
               #0 0x0000000000641e49 exec_byte_code (emacs-26.0.50)
               #1 0x00000000005fa16b funcall_lambda (emacs-26.0.50)
               #2 0x00000000005f979f Ffuncall (emacs-26.0.50)
               #3 0x00000000005f88aa Fapply (emacs-26.0.50)
               #4 0x00000000005f9a4c funcall_subr (emacs-26.0.50)
               #5 0x00000000005f976b Ffuncall (emacs-26.0.50)
               #6 0x00000000006425a9 exec_byte_code (emacs-26.0.50)
               #7 0x00000000005fa16b funcall_lambda (emacs-26.0.50)
               #8 0x00000000005f979f Ffuncall (emacs-26.0.50)
               #9 0x00000000005f91d7 call1 (emacs-26.0.50)
               #10 0x000000000055f4ce timer_check_2 (emacs-26.0.50)
               #11 0x000000000055f5fc timer_check (emacs-26.0.50)
               #12 0x000000000055d3f2 readable_events (emacs-26.0.50)
               #13 0x0000000000563d3b get_input_pending (emacs-26.0.50)
               #14 0x0000000000569f35 detect_input_pending_run_timers (emacs-26.0.5
0)
               #15 0x0000000000651607 wait_reading_process_output (emacs-26.0.50)
               #16 0x00000000004252be sit_for (emacs-26.0.50)
               #17 0x000000000055bc48 read_char (emacs-26.0.50)
               #18 0x0000000000568714 read_key_sequence (emacs-26.0.50)
               #19 0x0000000000558939 command_loop_1 (emacs-26.0.50)
               #20 0x00000000005f64a5 internal_condition_case (emacs-26.0.50)
               #21 0x0000000000558232 command_loop_2 (emacs-26.0.50)
               #22 0x00000000005f5d72 internal_catch (emacs-26.0.50)
               #23 0x00000000005581d4 command_loop (emacs-26.0.50)
               #24 0x00000000005578f0 recursive_edit_1 (emacs-26.0.50)
               #25 0x0000000000557a6c Frecursive_edit (emacs-26.0.50)
               #26 0x0000000000555867 main (emacs-26.0.50)
               #27 0x00007f7e58523291 __libc_start_main (libc.so.6)
               #28 0x00000000004185ba _start (emacs-26.0.50)

               Stack trace of thread 23911:
               #0 0x00007f7e58ee7f3d raise (libpthread.so.0)
               #1 0x0000000000553c66 terminate_due_to_signal (emacs-26.0.50)
               #2 0x0000000000578bd2 emacs_abort (emacs-26.0.50)
               #3 0x00000000005643f7 unblock_input_to (emacs-26.0.50)
               #4 0x000000000056440e unblock_input (emacs-26.0.50)
               #5 0x000000000069fede xg_select (emacs-26.0.50)
               #6 0x0000000000676dad really_call_select (emacs-26.0.50)
               #7 0x00000000005d4a02 flush_stack_call_func (emacs-26.0.50)
               #8 0x0000000000676e2b thread_select (emacs-26.0.50)
               #9 0x0000000000651168 wait_reading_process_output (emacs-26.0.50)
               #10 0x000000000055e010 kbd_buffer_get_event (emacs-26.0.50)
               #11 0x000000000055a894 read_event_from_main_queue (emacs-26.0.50)
               #12 0x000000000055aad5 read_decoded_event_from_main_queue (emacs-26.
0.50)
               #13 0x000000000055bf40 read_char (emacs-26.0.50)
               #14 0x0000000000623c88 read_filtered_event (emacs-26.0.50)
               #15 0x0000000000623f6b Fread_event (emacs-26.0.50)
               #16 0x00000000005f9b66 funcall_subr (emacs-26.0.50)
               #17 0x00000000005f976b Ffuncall (emacs-26.0.50)
               #18 0x00000000006425a9 exec_byte_code (emacs-26.0.50)
               #19 0x00000000005fa16b funcall_lambda (emacs-26.0.50)
               #20 0x00000000005f9ed1 apply_lambda (emacs-26.0.50)
               #21 0x00000000005f85c2 eval_sub (emacs-26.0.50)
               #22 0x00000000005f485d Fprogn (emacs-26.0.50)
               #23 0x00000000005fa482 funcall_lambda (emacs-26.0.50)
               #24 0x00000000005f986d Ffuncall (emacs-26.0.50)
               #25 0x0000000000677065 invoke_thread_function (emacs-26.0.50)
               #26 0x00000000005f64a5 internal_condition_case (emacs-26.0.50)
               #27 0x0000000000677179 run_thread (emacs-26.0.50)
               #28 0x00007f7e58ede454 start_thread (libpthread.so.0)
               #29 0x00007f7e585eb7df __clone (libc.so.6)

               Stack trace of thread 23917:
               #0 0x00007f7e58ee716d __write (libpthread.so.0)
               #1 0x0000000000578ede emacs_full_write (emacs-26.0.50)
               #2 0x0000000000578f5f emacs_write (emacs-26.0.50)
               #3 0x0000000000556205 shut_down_emacs (emacs-26.0.50)
               #4 0x0000000000553c16 terminate_due_to_signal (emacs-26.0.50)
               #5 0x0000000000578bd2 emacs_abort (emacs-26.0.50)
               #6 0x00000000005643f7 unblock_input_to (emacs-26.0.50)
               #7 0x000000000056440e unblock_input (emacs-26.0.50)
               #8 0x000000000069fede xg_select (emacs-26.0.50)
               #9 0x0000000000676dad really_call_select (emacs-26.0.50)
               #10 0x00000000005d4a02 flush_stack_call_func (emacs-26.0.50)
               #11 0x0000000000676e2b thread_select (emacs-26.0.50)
               #12 0x0000000000651168 wait_reading_process_output (emacs-26.0.50)
               #13 0x000000000055e010 kbd_buffer_get_event (emacs-26.0.50)
               #14 0x000000000055a894 read_event_from_main_queue (emacs-26.0.50)
               #15 0x000000000055aad5 read_decoded_event_from_main_queue (emacs-26.
0.50)
               #16 0x000000000055bf40 read_char (emacs-26.0.50)
               #17 0x0000000000623c88 read_filtered_event (emacs-26.0.50)
               #18 0x0000000000623f6b Fread_event (emacs-26.0.50)
               #19 0x00000000005f9b66 funcall_subr (emacs-26.0.50)
               #20 0x00000000005f976b Ffuncall (emacs-26.0.50)
               #21 0x00000000006425a9 exec_byte_code (emacs-26.0.50)
               #22 0x00000000005fa16b funcall_lambda (emacs-26.0.50)
               #23 0x00000000005f9ed1 apply_lambda (emacs-26.0.50)
               #24 0x00000000005f85c2 eval_sub (emacs-26.0.50)
               #25 0x00000000005f485d Fprogn (emacs-26.0.50)
               #26 0x00000000005fa482 funcall_lambda (emacs-26.0.50)
               #27 0x00000000005f986d Ffuncall (emacs-26.0.50)
               #28 0x0000000000677065 invoke_thread_function (emacs-26.0.50)
               #29 0x00000000005f64a5 internal_condition_case (emacs-26.0.50)
               #30 0x0000000000677179 run_thread (emacs-26.0.50)
               #31 0x00007f7e58ede454 start_thread (libpthread.so.0)
               #32 0x00007f7e585eb7df __clone (libc.so.6)

               Stack trace of thread 23916:
               #0 0x00007f7e58ee6f1c __lll_lock_wait (libpthread.so.0)
               #1 0x00007f7e58ee95e0 __lll_lock_elision (libpthread.so.0)
               #2 0x0000000000677a79 sys_mutex_lock (emacs-26.0.50)
               #3 0x0000000000676491 acquire_global_lock (emacs-26.0.50)
               #4 0x0000000000676dc2 really_call_select (emacs-26.0.50)
               #5 0x00000000005d4a02 flush_stack_call_func (emacs-26.0.50)
               #6 0x0000000000676e2b thread_select (emacs-26.0.50)
               #7 0x0000000000651168 wait_reading_process_output (emacs-26.0.50)
               #8 0x000000000055e010 kbd_buffer_get_event (emacs-26.0.50)
               #9 0x000000000055a894 read_event_from_main_queue (emacs-26.0.50)
               #10 0x000000000055aad5 read_decoded_event_from_main_queue (emacs-26.
0.50)
               #11 0x000000000055bf40 read_char (emacs-26.0.50)
               #12 0x0000000000623c88 read_filtered_event (emacs-26.0.50)
               #13 0x0000000000623f6b Fread_event (emacs-26.0.50)
               #14 0x00000000005f9b66 funcall_subr (emacs-26.0.50)
               #15 0x00000000005f976b Ffuncall (emacs-26.0.50)
               #16 0x00000000006425a9 exec_byte_code (emacs-26.0.50)
               #17 0x00000000005fa16b funcall_lambda (emacs-26.0.50)
               #18 0x00000000005f9ed1 apply_lambda (emacs-26.0.50)
               #19 0x00000000005f85c2 eval_sub (emacs-26.0.50)
               #20 0x00000000005f485d Fprogn (emacs-26.0.50)
               #21 0x00000000005fa482 funcall_lambda (emacs-26.0.50)
               #22 0x00000000005f986d Ffuncall (emacs-26.0.50)
               #23 0x0000000000677065 invoke_thread_function (emacs-26.0.50)
               #24 0x00000000005f64a5 internal_condition_case (emacs-26.0.50)
               #25 0x0000000000677179 run_thread (emacs-26.0.50)
               #26 0x00007f7e58ede454 start_thread (libpthread.so.0)
               #27 0x00007f7e585eb7df __clone (libc.so.6)

               Stack trace of thread 23918:
               #0 0x00007f7e58ee6f1c __lll_lock_wait (libpthread.so.0)
               #1 0x00007f7e58ee95e0 __lll_lock_elision (libpthread.so.0)
               #2 0x0000000000677a79 sys_mutex_lock (emacs-26.0.50)
               #3 0x0000000000676491 acquire_global_lock (emacs-26.0.50)
               #4 0x0000000000676dc2 really_call_select (emacs-26.0.50)
               #5 0x00000000005d4a02 flush_stack_call_func (emacs-26.0.50)
               #6 0x0000000000676e2b thread_select (emacs-26.0.50)
               #7 0x0000000000651168 wait_reading_process_output (emacs-26.0.50)
               #8 0x000000000055e010 kbd_buffer_get_event (emacs-26.0.50)
               #9 0x000000000055a894 read_event_from_main_queue (emacs-26.0.50)
               #10 0x000000000055aad5 read_decoded_event_from_main_queue (emacs-26.
0.50)
               #11 0x000000000055bf40 read_char (emacs-26.0.50)
               #12 0x0000000000623c88 read_filtered_event (emacs-26.0.50)
               #13 0x0000000000623f6b Fread_event (emacs-26.0.50)
               #14 0x00000000005f9b66 funcall_subr (emacs-26.0.50)
               #15 0x00000000005f976b Ffuncall (emacs-26.0.50)
               #16 0x00000000006425a9 exec_byte_code (emacs-26.0.50)
               #17 0x00000000005fa16b funcall_lambda (emacs-26.0.50)
               #18 0x00000000005f9ed1 apply_lambda (emacs-26.0.50)
               #19 0x00000000005f85c2 eval_sub (emacs-26.0.50)
               #20 0x00000000005f485d Fprogn (emacs-26.0.50)
               #21 0x00000000005fa482 funcall_lambda (emacs-26.0.50)
               #22 0x00000000005f986d Ffuncall (emacs-26.0.50)
               #23 0x0000000000677065 invoke_thread_function (emacs-26.0.50)
               #24 0x00000000005f64a5 internal_condition_case (emacs-26.0.50)
               #25 0x0000000000677179 run_thread (emacs-26.0.50)
               #26 0x00007f7e58ede454 start_thread (libpthread.so.0)
               #27 0x00007f7e585eb7df __clone (libc.so.6)

               Stack trace of thread 23907:
               #0 0x00007f7e585e248d poll (libc.so.6)
               #1 0x00007f7e5ded9786 n/a (libglib-2.0.so.0)
               #2 0x00007f7e5ded9b12 g_main_loop_run (libglib-2.0.so.0)
               #3 0x00007f7e5e4bf316 n/a (libgio-2.0.so.0)
               #4 0x00007f7e5df010d5 n/a (libglib-2.0.so.0)
               #5 0x00007f7e58ede454 start_thread (libpthread.so.0)
               #6 0x00007f7e585eb7df __clone (libc.so.6)

               Stack trace of thread 23914:
               #0 0x00007f7e58ee6f1c __lll_lock_wait (libpthread.so.0)
               #1 0x00007f7e58ee95e0 __lll_lock_elision (libpthread.so.0)
               #2 0x0000000000677a79 sys_mutex_lock (emacs-26.0.50)
               #3 0x0000000000676491 acquire_global_lock (emacs-26.0.50)
               #4 0x0000000000676dc2 really_call_select (emacs-26.0.50)
               #5 0x00000000005d4a02 flush_stack_call_func (emacs-26.0.50)
               #6 0x0000000000676e2b thread_select (emacs-26.0.50)
               #7 0x0000000000651168 wait_reading_process_output (emacs-26.0.50)
               #8 0x000000000055e010 kbd_buffer_get_event (emacs-26.0.50)
               #9 0x000000000055a894 read_event_from_main_queue (emacs-26.0.50)
               #10 0x000000000055aad5 read_decoded_event_from_main_queue (emacs-26.
0.50)
               #11 0x000000000055bf40 read_char (emacs-26.0.50)
               #12 0x0000000000623c88 read_filtered_event (emacs-26.0.50)
               #13 0x0000000000623f6b Fread_event (emacs-26.0.50)
               #14 0x00000000005f9b66 funcall_subr (emacs-26.0.50)
               #15 0x00000000005f976b Ffuncall (emacs-26.0.50)
               #16 0x00000000006425a9 exec_byte_code (emacs-26.0.50)
               #17 0x00000000005fa16b funcall_lambda (emacs-26.0.50)
               #18 0x00000000005f9ed1 apply_lambda (emacs-26.0.50)
               #19 0x00000000005f85c2 eval_sub (emacs-26.0.50)
               #20 0x00000000005f485d Fprogn (emacs-26.0.50)
               #21 0x00000000005fa482 funcall_lambda (emacs-26.0.50)
               #22 0x00000000005f986d Ffuncall (emacs-26.0.50)
               #23 0x0000000000677065 invoke_thread_function (emacs-26.0.50)
               #24 0x00000000005f64a5 internal_condition_case (emacs-26.0.50)
               #25 0x0000000000677179 run_thread (emacs-26.0.50)
               #26 0x00007f7e58ede454 start_thread (libpthread.so.0)
               #27 0x00007f7e585eb7df __clone (libc.so.6)

               Stack trace of thread 23912:
               #0 0x00007f7e58ee6f1c __lll_lock_wait (libpthread.so.0)
               #1 0x00007f7e58ee95e0 __lll_lock_elision (libpthread.so.0)
               #2 0x0000000000677a79 sys_mutex_lock (emacs-26.0.50)
               #3 0x0000000000676491 acquire_global_lock (emacs-26.0.50)
               #4 0x0000000000676dc2 really_call_select (emacs-26.0.50)
               #5 0x00000000005d4a02 flush_stack_call_func (emacs-26.0.50)
               #6 0x0000000000676e2b thread_select (emacs-26.0.50)
               #7 0x0000000000651168 wait_reading_process_output (emacs-26.0.50)
               #8 0x000000000055e010 kbd_buffer_get_event (emacs-26.0.50)
               #9 0x000000000055a894 read_event_from_main_queue (emacs-26.0.50)
               #10 0x000000000055aad5 read_decoded_event_from_main_queue (emacs-26.
0.50)
               #11 0x000000000055bf40 read_char (emacs-26.0.50)
               #12 0x0000000000623c88 read_filtered_event (emacs-26.0.50)
               #13 0x0000000000623f6b Fread_event (emacs-26.0.50)
               #14 0x00000000005f9b66 funcall_subr (emacs-26.0.50)
               #15 0x00000000005f976b Ffuncall (emacs-26.0.50)
               #16 0x00000000006425a9 exec_byte_code (emacs-26.0.50)
               #17 0x00000000005fa16b funcall_lambda (emacs-26.0.50)
               #18 0x00000000005f9ed1 apply_lambda (emacs-26.0.50)
               #19 0x00000000005f85c2 eval_sub (emacs-26.0.50)
               #20 0x00000000005f485d Fprogn (emacs-26.0.50)
               #21 0x00000000005fa482 funcall_lambda (emacs-26.0.50)
               #22 0x00000000005f986d Ffuncall (emacs-26.0.50)
               #23 0x0000000000677065 invoke_thread_function (emacs-26.0.50)
               #24 0x00000000005f64a5 internal_condition_case (emacs-26.0.50)
               #25 0x0000000000677179 run_thread (emacs-26.0.50)
               #26 0x00007f7e58ede454 start_thread (libpthread.so.0)
               #27 0x00007f7e585eb7df __clone (libc.so.6)

               Stack trace of thread 23915:
               #0 0x00007f7e58ee6f1c __lll_lock_wait (libpthread.so.0)
               #1 0x00007f7e58ee95e0 __lll_lock_elision (libpthread.so.0)
               #2 0x0000000000677a79 sys_mutex_lock (emacs-26.0.50)
               #3 0x0000000000676491 acquire_global_lock (emacs-26.0.50)
               #4 0x0000000000676dc2 really_call_select (emacs-26.0.50)
               #5 0x00000000005d4a02 flush_stack_call_func (emacs-26.0.50)
               #6 0x0000000000676e2b thread_select (emacs-26.0.50)
               #7 0x0000000000651168 wait_reading_process_output (emacs-26.0.50)
               #8 0x000000000055e010 kbd_buffer_get_event (emacs-26.0.50)
               #9 0x000000000055a894 read_event_from_main_queue (emacs-26.0.50)
               #10 0x000000000055aad5 read_decoded_event_from_main_queue (emacs-26.
0.50)
               #11 0x000000000055bf40 read_char (emacs-26.0.50)
               #12 0x0000000000623c88 read_filtered_event (emacs-26.0.50)
               #13 0x0000000000623f6b Fread_event (emacs-26.0.50)
               #14 0x00000000005f9b66 funcall_subr (emacs-26.0.50)
               #15 0x00000000005f976b Ffuncall (emacs-26.0.50)
               #16 0x00000000006425a9 exec_byte_code (emacs-26.0.50)
               #17 0x00000000005fa16b funcall_lambda (emacs-26.0.50)
               #18 0x00000000005f9ed1 apply_lambda (emacs-26.0.50)
               #19 0x00000000005f85c2 eval_sub (emacs-26.0.50)
               #20 0x00000000005f485d Fprogn (emacs-26.0.50)
               #21 0x00000000005fa482 funcall_lambda (emacs-26.0.50)
               #22 0x00000000005f986d Ffuncall (emacs-26.0.50)
               #23 0x0000000000677065 invoke_thread_function (emacs-26.0.50)
               #24 0x00000000005f64a5 internal_condition_case (emacs-26.0.50)
               #25 0x0000000000677179 run_thread (emacs-26.0.50)
               #26 0x00007f7e58ede454 start_thread (libpthread.so.0)
               #27 0x00007f7e585eb7df __clone (libc.so.6)

               Stack trace of thread 23913:
               #0 0x00007f7e58ee6f1c __lll_lock_wait (libpthread.so.0)
               #1 0x00007f7e58ee95e0 __lll_lock_elision (libpthread.so.0)
               #2 0x0000000000677a79 sys_mutex_lock (emacs-26.0.50)
               #3 0x0000000000676491 acquire_global_lock (emacs-26.0.50)
               #4 0x0000000000676dc2 really_call_select (emacs-26.0.50)
               #5 0x00000000005d4a02 flush_stack_call_func (emacs-26.0.50)
               #6 0x0000000000676e2b thread_select (emacs-26.0.50)
               #7 0x0000000000651168 wait_reading_process_output (emacs-26.0.50)
               #8 0x000000000055e010 kbd_buffer_get_event (emacs-26.0.50)
               #9 0x000000000055a894 read_event_from_main_queue (emacs-26.0.50)
               #10 0x000000000055aad5 read_decoded_event_from_main_queue (emacs-26.
0.50)
               #11 0x000000000055bf40 read_char (emacs-26.0.50)
               #12 0x0000000000623c88 read_filtered_event (emacs-26.0.50)
               #13 0x0000000000623f6b Fread_event (emacs-26.0.50)
               #14 0x00000000005f9b66 funcall_subr (emacs-26.0.50)
               #15 0x00000000005f976b Ffuncall (emacs-26.0.50)
               #16 0x00000000006425a9 exec_byte_code (emacs-26.0.50)
               #17 0x00000000005fa16b funcall_lambda (emacs-26.0.50)
               #18 0x00000000005f9ed1 apply_lambda (emacs-26.0.50)
               #19 0x00000000005f85c2 eval_sub (emacs-26.0.50)
               #20 0x00000000005f485d Fprogn (emacs-26.0.50)
               #21 0x00000000005fa482 funcall_lambda (emacs-26.0.50)
               #22 0x00000000005f986d Ffuncall (emacs-26.0.50)
               #23 0x0000000000677065 invoke_thread_function (emacs-26.0.50)
               #24 0x00000000005f64a5 internal_condition_case (emacs-26.0.50)
               #25 0x0000000000677179 run_thread (emacs-26.0.50)
               #26 0x00007f7e58ede454 start_thread (libpthread.so.0)
               #27 0x00007f7e585eb7df __clone (libc.so.6)

               Stack trace of thread 23908:
               #0 0x00007f7e585e248d poll (libc.so.6)
               #1 0x00007f7e5ded9786 n/a (libglib-2.0.so.0)
               #2 0x00007f7e5ded989c g_main_context_iteration (libglib-2.0.so.0)
               #3 0x00007f7e4b3bc4bd n/a (libdconfsettings.so)
               #4 0x00007f7e5df010d5 n/a (libglib-2.0.so.0)
               #5 0x00007f7e58ede454 start_thread (libpthread.so.0)
               #6 0x00007f7e585eb7df __clone (libc.so.6)

               Stack trace of thread 23919:
               #0 0x00007f7e58ee6f1c __lll_lock_wait (libpthread.so.0)
               #1 0x00007f7e58ee95e0 __lll_lock_elision (libpthread.so.0)
               #2 0x0000000000677a79 sys_mutex_lock (emacs-26.0.50)
               #3 0x0000000000676491 acquire_global_lock (emacs-26.0.50)
               #4 0x0000000000676dc2 really_call_select (emacs-26.0.50)
               #5 0x00000000005d4a02 flush_stack_call_func (emacs-26.0.50)
               #6 0x0000000000676e2b thread_select (emacs-26.0.50)
               #7 0x0000000000651168 wait_reading_process_output (emacs-26.0.50)
               #8 0x000000000055e010 kbd_buffer_get_event (emacs-26.0.50)
               #9 0x000000000055a894 read_event_from_main_queue (emacs-26.0.50)
               #10 0x000000000055aad5 read_decoded_event_from_main_queue (emacs-26.
0.50)
               #11 0x000000000055bf40 read_char (emacs-26.0.50)
               #12 0x0000000000623c88 read_filtered_event (emacs-26.0.50)
               #13 0x0000000000623f6b Fread_event (emacs-26.0.50)
               #14 0x00000000005f9b66 funcall_subr (emacs-26.0.50)
               #15 0x00000000005f976b Ffuncall (emacs-26.0.50)
               #16 0x00000000006425a9 exec_byte_code (emacs-26.0.50)
               #17 0x00000000005fa16b funcall_lambda (emacs-26.0.50)
               #18 0x00000000005f9ed1 apply_lambda (emacs-26.0.50)
               #19 0x00000000005f85c2 eval_sub (emacs-26.0.50)
               #20 0x00000000005f485d Fprogn (emacs-26.0.50)
               #21 0x00000000005fa482 funcall_lambda (emacs-26.0.50)
               #22 0x00000000005f986d Ffuncall (emacs-26.0.50)
               #23 0x0000000000677065 invoke_thread_function (emacs-26.0.50)
               #24 0x00000000005f64a5 internal_condition_case (emacs-26.0.50)
               #25 0x0000000000677179 run_thread (emacs-26.0.50)
               #26 0x00007f7e58ede454 start_thread (libpthread.so.0)
               #27 0x00007f7e585eb7df __clone (libc.so.6)

GNU gdb (GDB) 7.12
Copyright (C) 2016 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-pc-linux-gnu".
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"...
Reading symbols from /home/emartenson/src/emacs/dist/bin/emacs-26.0.50...done.

warning: core file may not match specified executable file.
[New LWP 23910]
[New LWP 23906]
[New LWP 23905]
[New LWP 23911]
[New LWP 23917]
[New LWP 23916]
[New LWP 23918]
[New LWP 23907]
[New LWP 23914]
[New LWP 23912]
[New LWP 23915]
[New LWP 23913]
[New LWP 23908]
[New LWP 23919]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Core was generated by `dist/bin/emacs -Q'.
Program terminated with signal SIGABRT, Aborted.
#0 0x00007f7e58ee7f5f in raise () from /usr/lib/libpthread.so.0
[Current thread is 1 (Thread 0x7f7e4a8a0700 (LWP 23910))]
(gdb) bt full

#0 0x00007f7e58ee7f5f in raise () at /usr/lib/libpthread.so.0
#1 0x0000000000553c66 in terminate_due_to_signal (sig=6, backtrace_limit=40)
   at emacs.c:394
#2 0x0000000000578bd2 in emacs_abort () at sysdep.c:2342
#3 0x00000000005643f7 in unblock_input_to (level=-2) at keyboard.c:7167
#4 0x000000000056440e in unblock_input () at keyboard.c:7183
#5 0x000000000069fede in xg_select (fds_lim=15, rfds=0x7f7e4a89e9a0, wfds=0x7f7e4a8
9e920, efds=0x0, timeout=0x7f7e4a89e900, sigmask=0x0) at xgselect.c:162
       pselect_errno = 11
       all_rfds = {fds_bits = {0 <repeats 16 times>}}
       all_wfds = {fds_bits = {0 <repeats 16 times>}}
       tmo = {tv_sec = 0, tv_nsec = 140180393157952}
       tmop = 0x7f7e4a89e900
       context = 0x2eb3d60
       have_wfds = true
       gfds_buf =
           {{fd = 0, events = 0, revents = 0} <repeats 89 times>, {fd = 13130192, e
vents = 0, revents = 0}, {fd = 1250550800, events = 32638, revents = 0}, {fd = 61384
65, events = 0, revents = 0}, {fd = 56810560, events = 0, revents = 0}, {fd = 131301
92, events = 0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 0, events = 0
, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 0, events = 0, revents = 0}
, {fd = 0, events = 0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 0, eve
nts = 0, revents = 0}, {fd = 0, events = 6, revents = 0}, {fd = 0, events = 0, reven
ts = 0}, {fd = 0, events = 0, revents = 0}, {fd = 13130192, events = 0, revents = 0}
, {fd = 1250550800, events = 32638, revents = 0}, {fd = 514336, events = 0, revents
= 0}, {fd = 0, events = 0, revents = 0}, {fd = 1250550928, events = 32638, revents =
0}, {fd = 6141648, events = 0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd
= 22282627, events = 0, revents = 0}, {fd = 1250550864, events = 32638, revents = 0
}, {fd = 5569130, events = 0, revents = 0}, {fd = 22282643, events = 0, revents = 0}
, {fd = 22282627, events = 0, revents = 0}, {fd = 1250550928, events = 32638, revent
s = 0}, {fd = 6100152, events = 0, revents = 0}, {fd = 13254064, events = 0, revents
= 0}, {fd = 0, events = 0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 1
250550928, events = 32638, revents = 0}, {fd = 5568885, events = 0, revents = 0}, {f
d = 1, events = 0, revents = 0}, {fd = 1250550992, events = 32638, revents = 0}, {fd
= 6101370, events = 0, revents = 0}, {fd = 13254064, events = 0, revents = 0}, {fd
= 22282739, events = 0, revents = 0}}
       gfds = 0x7f7e4a89e0b0
       gfds_size = 128
       n_gfds = -1
       retval = 0
       our_fds = 0
       max_fds = 14
       context_acquired = false
       i = 0
       nfds = 0
       tmo_in_millisec = 0
       must_free = 0
       need_to_dispatch = true
#6 0x0000000000676dad in really_call_select (arg=0x7f7e4a89e6f0) at thread.c:498
       sa = 0x7f7e4a89e6f0
       self = 0x1419c30 <bss_sbrk_buffer+7680208>
#7 0x00000000005d4a02 in flush_stack_call_func (func=0x676d51 <really_call_select>,
arg=0x7f7e4a89e6f0) at alloc.c:5137
       end = 0x7f7e4a89e670
       self = 0x1419c30 <bss_sbrk_buffer+7680208>
#8 0x0000000000676e2b in thread_select (func=0x69f84f <xg_select>, max_fds=15, rfds
=0x7f7e4a89e9a0, wfds=0x7f7e4a89e920, efds=0x0, timeout=0x7f7e4a89e900, sigmask=0x0)
at thread.c:517
       sa =
         {func = 0x69f84f <xg_select>, max_fds = 15, rfds = 0x7f7e4a89e9a0, wfds =
0x7f7e4a89e920, efds = 0x0, timeout = 0x7f7e4a89e900, sigmask = 0x0, result = -1}
#9 0x0000000000651168 in wait_reading_process_output (time_limit=4, nsecs=999981940
, read_kbd=-1, do_display=true, wait_for_cell=0, wait_proc=0x0, just_wait_proc=0)
   at process.c:5345
       process_skipped = false
       channel = 1024
       nfds = 0
       Available = {fds_bits = {0 <repeats 16 times>}}
       Writeok = {fds_bits = {0 <repeats 16 times>}}
check_write = true
       check_delay = 0
       no_avail = false
       xerrno = 11
       proc = 140180393159360
       timeout = {tv_sec = 0, tv_nsec = 400684470}
       end_time = {tv_sec = 1481602254, tv_nsec = 248327123}
       timer_delay = {tv_sec = 0, tv_nsec = 400684470}
       got_output_end_time = {tv_sec = 1481602254, tv_nsec = 248327123}
       wait = TIMEOUT
       got_some_output = -1
       retry_for_async = false
       count = 4
       now = {tv_sec = 0, tv_nsec = -1}
#10 0x000000000055e010 in kbd_buffer_get_event (kbp=0x7f7e4a89ecd8, used_mouse_menu=
0x0, end_time=0x7f7e4a89f2b0) at keyboard.c:3824
       duration = {tv_sec = 4, tv_nsec = 999981940}
       now = {tv_sec = 1481602249, tv_nsec = 248344871}
       obj = 5624788
#11 0x000000000055a894 in read_event_from_main_queue (end_time=0x7f7e4a89f2b0, local
_getcjmp=0x7f7e4a89f080, used_mouse_menu=0x0) at keyboard.c:2156
       c = 0
       save_jump =
               {{__jmpbuf = {0, -2417125397518733501, 4294032, 140729335028496, 0,
0, -2417125397420167357, 2416341619877490499}, __mask_was_saved = 0, __saved_mask =
{__val = {20399936, 13254064, 6140185, 0, 140729335026416, 5568885, 20455520, 132540
64, 5703904, 0, 140729335026464, 5568885, 19983091, 140729335026560, 6272424, 0}}}}
       kb = 0x0
#12 0x000000000055aad5 in read_decoded_event_from_main_queue (end_time=0x7f7e4a89f2b
0, local_getcjmp=0x7f7e4a89f080, prev_event=0, used_mouse_menu=0x0)
   at keyboard.c:2219
       nextevt = 140180393160496
       frame = 0x0
       terminal = 0x100000000
       events =
         {140180393160368, 5633532, 13254064, 97157042, 0, 140180393160368, 5568885
, 22193715, 140180393160432, 5625063, 13254064, 4294967296, 0, 140180393160432, 5568
885, 0}
       n = 0
#13 0x000000000055bf40 in read_char (commandflag=0, map=0, prev_event=0, used_mouse_
menu=0x0, end_time=0x7f7e4a89f2b0) at keyboard.c:2807
       c = 0
       jmpcount = 4
       local_getcjmp =
               {{__jmpbuf = {0, -2345244703450845373, 0, 30, 0, 140180768694272, -2
345244703889150141, 2416341619877490499}, __mask_was_saved = 0, __saved_mask = {__va
l = {80, 0, 229798, 0, 500000000, 0, 9223372036854775807, 0, 499770202, 0, 97187988,
140180393161232, 5632933, 22194259, 13808800818897563648, 0}}}}
       save_jump =
               {{__jmpbuf = {0, 0, 0, 0, 0, 22194259, 140180393160704, 5569130}, __
mask_was_saved = 22194307, __saved_mask = {__val = {22194259, 140180393160768, 61001
52, 13254064, 140180634631621, 0, 18446744073709551615, 48804432, 0, 0, 140180706096
052, 13254064, 22194387, 48808728, 140180393160944, 18446744073709551615}}}}
       tem = 140180393161216
       save = 140180768694272
       previous_echo_area_message = 0
       also_record = 0
       reread = false
       recorded = false
       polling_stopped_here = true
       orig_kboard = 0x2fa8cb0
#14 0x0000000000623c88 in read_filtered_event (no_switch_frame=false, ascii_required
=false, error_nonascii=false, input_method=true, seconds=22) at lread.c:614
       val = 140180393161472
       delayed_switch_frame = 0
       end_time = {tv_sec = 1481602254, tv_nsec = 248326811}
#15 0x0000000000623f6b in Fread_event (prompt=0, inherit_input_method=45984, seconds
=22) at lread.c:726
#16 0x00000000005f9b66 in funcall_subr (subr=0xc32c38 <Sread_event>, numargs=3, args=0x7f7e4a89f468) at eval.c:2815

       internal_argbuf =
         {0, 140180393161624, 13130192, 43006483520, 12790840, 140180393161656, 557
3343, 44200227760}
       internal_args = 0x7f7e4a89f468
#17 0x00000000005f976b in Ffuncall (nargs=4, args=0x7f7e4a89f460) at eval.c:2735
       fun = 12790845
       original_fun = 593376
       funcar = 140180393161776
       numargs = 3
       val = 32160
       count = 3
#18 0x00000000006425a9 in exec_byte_code (bytestr=9716916, vector=9716949, maxdepth=
30, args_template=3078, nargs=1, args=0x7f7e4a89f8c8) at bytecode.c:726
       v1 = 0
       op = 3
       type = CATCHER
       targets =
         {0x645acc <exec_byte_code+16638>, 0x645b2c <exec_byte_code+16734>, 0x645b2
e <exec_byte_code+16736>, 0x645b30 <exec_byte_code+16738>, 0x645b32 <exec_byte_code+
16740>, 0x645b32 <exec_byte_code+16740>, 0x645b92 <exec_byte_code+16836>, 0x645c07 <
exec_byte_code+16953>, 0x641e9b <exec_byte_code+1229>, 0x641e9d <exec_byte_code+1231
>, 0x641e9f <exec_byte_code+1233>, 0x641ea1 <exec_byte_code+1235>, 0x641ea3 <exec_by
te_code+1237>, 0x641ea3 <exec_byte_code+1237>, 0x641ea9 <exec_byte_code+1243>, 0x641
e5e <exec_byte_code+1168>, 0x6422b7 <exec_byte_code+2281>, 0x6422b9 <exec_byte_code+
2283>, 0x6422bb <exec_byte_code+2285>, 0x6422bd <exec_byte_code+2287>, 0x6422bf <exe
c_byte_code+2289>, 0x6422bf <exec_byte_code+2289>, 0x642300 <exec_byte_code+2354>, 0
x6422c5 <exec_byte_code+2295>, 0x6424b4 <exec_byte_code+2790>, 0x6424b6 <exec_byte_c
ode+2792>, 0x6424b8 <exec_byte_code+2794>, 0x6424ba <exec_byte_code+2796>, 0x6424bc
<exec_byte_code+2798>, 0x6424bc <exec_byte_code+2798>, 0x64245c <exec_byte_code+2702
>, 0x642479 <exec_byte_code+2731>, 0x642576 <exec_byte_code+2984>, 0x642578 <exec_by
te_code+2986>, 0x64257a <exec_byte_code+2988>, 0x64257c <exec_byte_code+2990>, 0x642
57e <exec_byte_code+2992>, 0x64257e <exec_byte_code+2992>, 0x64251e <exec_byte_code+
2896>, 0x64253b <exec_byte_code+2925>, 0x642638 <exec_byte_code+3178>, 0x64263a <exe
c_byte_code+3180>, 0x64263c <exec_byte_code+3182>, 0x64263e <exec_byte_code+3184>, 0
x642640 <exec_byte_code+3186>, 0x642640 <exec_byte_code+3186>, 0x6425e0 <exec_byte_c
ode+3090>, 0x6425fd <exec_byte_code+3119>, 0x64358f <exec_byte_code+7105>, 0x64343a
<exec_byte_code+6764>, 0x643431 <exec_byte_code+6755>, 0x645acc <exec_byte_code+1663
8>, 0x645acc <exec_byte_code+16638>, 0x645acc <exec_byte_code+16638>, 0x645acc <exec
_byte_code+16638>, 0x645acc <exec_byte_code+16638>, 0x6437af <exec_byte_code+7649>,
0x643891 <exec_byte_code+7875>, 0x6438ef <exec_byte_code+7969>, 0x64394e <exec_byte_
code+8064>, 0x6439b1 <exec_byte_code+8163>, 0x642155 <exec_byte_code+1927>, 0x6421cb
<exec_byte_code+2045>, 0x643a26 <exec_byte_code+8280>, 0x6420d0 <exec_byte_code+179
4>, 0x642231 <exec_byte_code+2147>, 0x643a8c <exec_byte_code+8382>, 0x643af2 <exec_b
yte_code+8484>, 0x643b38 <exec_byte_code+8554>, 0x643b9e <exec_byte_code+8656>, 0x64
3beb <exec_byte_code+8733>, 0x643cb8 <exec_byte_code+8938>, 0x643cfe <exec_byte_code
+9008>, 0x643d64 <exec_byte_code+9110>, 0x643de7 <exec_byte_code+9241>, 0x643e2d <ex
ec_byte_code+9311>, 0x643e73 <exec_byte_code+9381>, 0x643ed9 <exec_byte_code+9483>,
0x643f3f <exec_byte_code+9585>, 0x643fa5 <exec_byte_code+9687>, 0x644028 <exec_byte_
code+9818>, 0x644075 <exec_byte_code+9895>, 0x6440c2 <exec_byte_code+9972>, 0x64418f
<exec_byte_code+10177>, 0x644200 <exec_byte_code+10290>, 0x644271 <exec_byte_code+1
0403>, 0x6444e0 <exec_byte_code+11026>, 0x64454b <exec_byte_code+11133>, 0x6445b6 <e
xec_byte_code+11240>, 0x644621 <exec_byte_code+11347>, 0x64468c <exec_byte_code+1145
4>, 0x6446d9 <exec_byte_code+11531>, 0x64474b <exec_byte_code+11645>, 0x644798 <exec
_byte_code+11722>, 0x6447e5 <exec_byte_code+11799>, 0x644832 <exec_byte_code+11876>,
0x644932 <exec_byte_code+12132>, 0x6432ce <exec_byte_code+6400>, 0x64498b <exec_byt
e_code+12221>, 0x6449d1 <exec_byte_code+12291>, 0x644a99 <exec_byte_code+12491>, 0x6
44afd <exec_byte_code+12591>, 0x644b56 <exec_byte_code+12680>, 0x644b9c <exec_byte_c
ode+12750>, 0x644bdd <exec_byte_code+12815>, 0x644c1e <exec_byte_code+12880>, 0x644c
67 <exec_byte_code+12953>, 0x645acc <exec_byte_code+16638>, 0x644cbd <exec_byte_code
+13039>, 0x644cfe <exec_byte_code+13104>, 0x644d3f <exec_byte_code+13169>, 0x644d80
<exec_byte_code+13234>, 0x644dc1 <exec_byte_code+13299>, 0x644e02 <exec_byte_code+13
364>, 0x6432ce <exec_byte_code+6400>, 0x645acc <exec_byte_code+16638>, 0x644e48 <exe
c_byte_code+13434>, 0x644e96 <exec_byte_code+13512>, 0x644edc <exec_byte_code+13582>
, 0x644f22 <exec_byte_code+13652>, 0x644f88 <exec_byte_code+13754>, 0x644fee <exec_b
yte_code+13856>, 0x645034 <exec_byte_code+13926>, 0x645128 <exec_byte_code+14170>, 0
x64518e <exec_byte_code+14272>, 0x6451f4 <exec_byte_code+14374>, 0x64525a <exec_byte
_code+14476>, 0x64529b <exec_byte_code+14541>, 0x645acc <exec_byte_code+16638>, 0x64
3205 <exec_byte_code+6199>, 0x6426e5 <exec_byte_code+3351>, 0x641f7c <exec_byte_code+1454>, 0x64280c <exec_byte_code+3646>, 0x642960 <exec_byte_code+3986>, 0x642aa8 <ex
ec_byte_code+4314>, 0x6431a4 <exec_byte_code+6102>, 0x6431d3 <exec_byte_code+6149>,
0x64240e <exec_byte_code+2624>, 0x64328f <exec_byte_code+6337>, 0x643300 <exec_byte_
code+6450>, 0x64338a <exec_byte_code+6588>, 0x6433c9 <exec_byte_code+6651>, 0x6435d6
<exec_byte_code+7176>, 0x64364a <exec_byte_code+7292>, 0x6436cd <exec_byte_code+742
3>, 0x64372e <exec_byte_code+7520>, 0x64269c <exec_byte_code+3278>, 0x6452e1 <exec_b
yte_code+14611>, 0x645364 <exec_byte_code+14742>, 0x6453aa <exec_byte_code+14812>, 0
x6453f0 <exec_byte_code+14882>, 0x645436 <exec_byte_code+14952>, 0x64547c <exec_byte
_code+15022>, 0x6454e2 <exec_byte_code+15124>, 0x645548 <exec_byte_code+15226>, 0x64
55ae <exec_byte_code+15328>, 0x645614 <exec_byte_code+15430>, 0x645753 <exec_byte_co
de+15749>, 0x6457b9 <exec_byte_code+15851>, 0x64581f <exec_byte_code+15953>, 0x64586
5 <exec_byte_code+16023>, 0x6458cb <exec_byte_code+16125>, 0x645931 <exec_byte_code+
16227>, 0x645977 <exec_byte_code+16297>, 0x6459bd <exec_byte_code+16367>, 0x64487f <
exec_byte_code+11953>, 0x6448cc <exec_byte_code+12030>, 0x645a0a <exec_byte_code+164
44>, 0x645a6d <exec_byte_code+16543>, 0x645acc <exec_byte_code+16638>, 0x642bf0 <exe
c_byte_code+4642>, 0x642cea <exec_byte_code+4892>, 0x642e18 <exec_byte_code+5194>, 0
x642f46 <exec_byte_code+5496>, 0x643075 <exec_byte_code+5799>, 0x643c38 <exec_byte_c
ode+8810>, 0x64410f <exec_byte_code+10049>, 0x644a19 <exec_byte_code+12363>, 0x645ca
1 <exec_byte_code+17107>, 0x645d17 <exec_byte_code+17225>, 0x645acc <exec_byte_code+
16638>, 0x645acc <exec_byte_code+16638>, 0x645db4 <exec_byte_code+17382>, 0x645acc <
exec_byte_code+16638>, 0x645acc <exec_byte_code+16638>, 0x645acc <exec_byte_code+166
38>, 0x645acc <exec_byte_code+16638>, 0x645acc <exec_byte_code+16638>, 0x645acc <exe
c_byte_code+16638>, 0x645acc <exec_byte_code+16638>, 0x645acc <exec_byte_code+16638>
, 0x645acc <exec_byte_code+16638>, 0x645e3c <exec_byte_code+17518> <repeats 64 times
>}
       const_length = 12
       bytestr_length = 90
       vectorp = 0x9444d8 <pure+128792>
       stack =
         {pc = 0xc26bdd <pure+3153437> ")\211?\206W", byte_string = 9716916, byte_s
tring_start = 0xc26b93 <pure+3153363> "\001\247\203\022", next = 0x0}
       quitcounter = 5 '\005'
       stack_items = 8
       sa_avail = 16320
       sa_count = 2
       sa_must_free = false
       stack_base = 0x7f7e4a89f440
       stack_lim = 0x7f7e4a89f480
       top = 0x7f7e4a89f460
       count = 2
       result = 0
#19 0x00000000005fa16b in funcall_lambda (fun=9716869, nargs=1, arg_vector=0x7f7e4a8
9f8c0) at eval.c:2935
       size = 5
       val = 6281490
       syms_left = 3078
       next = 0
       lexenv = 0
       count = 2
       i = 5568885
       optional = false
       rest = false
       previous_optional_or_rest = 127
#20 0x00000000005f9ed1 in apply_lambda (fun=9716869, args=20007587, count=1)
   at eval.c:2872
       args_left = 0
       i = 1
       numargs = 1
       arg_vector = 0x7f7e4a89f8c0
       tem = 22
       sa_avail = 16376
       sa_count = 2
       sa_must_free = false
#21 0x00000000005f85c2 in eval_sub (form=20007683) at eval.c:2256
       fun = 9716869
       val = 0
       original_fun = 4367024
       original_args = 20007587
       funcar = 0
count = 1
       argvals = {0, 0, 0, 0, 0, 25769803776, 0, 0}
#22 0x00000000005f485d in Fprogn (body=17860835) at eval.c:450
       val = 0
#23 0x00000000005fa482 in funcall_lambda (fun=17861123, nargs=0, arg_vector=0x1419c5
8 <bss_sbrk_buffer+7680248>) at eval.c:3006
       val = 0
       syms_left = 0
       next = 472446402651
       lexenv = 0
       count = 1
       i = 0
       optional = false
       rest = false
       previous_optional_or_rest = false
#24 0x00000000005f986d in Ffuncall (nargs=1, args=0x1419c50 <bss_sbrk_buffer+7680240
>) at eval.c:2749
       fun = 17861123
       original_fun = 17861123
       funcar = 30912
       numargs = 0
       val = 13254064
       count = 0
#25 0x0000000000677065 in invoke_thread_function () at thread.c:607
       count = 0
#26 0x00000000005f64a5 in internal_condition_case (bfun=0x67703d <invoke_thread_func
tion>, handlers=45984, hfun=0x677084 <do_nothing>) at eval.c:1336
       val = 5568885
       c = 0x7f7e380009f0
#27 0x0000000000677179 in run_thread (state=0x1419c30 <bss_sbrk_buffer+7680208>)
   at thread.c:641
       stack_pos = 0 '\000'
       self = 0x1419c30 <bss_sbrk_buffer+7680208>
       iter = 0x0
       c = 0x7f7e380008c0
#28 0x00007f7e58ede454 in start_thread () at /usr/lib/libpthread.so.0
#29 0x00007f7e585eb7df in clone () at /usr/lib/libc.so.6

From:	Elias Mårtenson
Subject:	bug#25172: 26.0.50; Concurrency feature, sit-for doesn't work (crashing and unexpected behaviour)
Date:	Tue, 13 Dec 2016 12:16:41 +0800