bug#13840: OS X Emacs frequent crashes when files are open over FTP

[Silas S. Brown]

Thanks.  It didn't take long to get a crash in 24.2.93 -
I just clicked on the "Help" menu!  Below is the (rather
long) backtrace (sorry if I didn't compile it with the
right options, I just did ./configure --with-ns and make
install as per the nextstep/README file).   Silas

#0  0x00007fff8d73282a in __kill ()
#1  0x000000010009d019 in terminate_due_to_signal (
    sig=6, backtrace_limit=10) at emacs.c:344
#2  0x00000001000b9a13 in emacs_abort ()
    at sysdep.c:2152
#3  0x000000010018a9dd in ns_term_shutdown (
    sig=<value temporarily unavailable, due to
optimizations>) at nsterm.m:4259
#4  0x000000010009d681 in shut_down_emacs (sig=6,
    stuff=37711) at emacs.c:1931
#5  0x000000010009cfdb in terminate_due_to_signal (
    sig=6, backtrace_limit=10) at emacs.c:328
#6  0x00000001000b9a13 in emacs_abort ()
    at sysdep.c:2152
#7  0x000000010018f31f in ns_select (
    nfds=<value temporarily unavailable, due to
optimizations>,
    readfds=<value temporarily unavailable, due to
optimizations>,
    writefds=<value temporarily unavailable, due to
optimizations>,
    exceptfds=<value temporarily unavailable, due to
optimizations>,
    timeout=<value temporarily unavailable, due to
optimizations>,
    sigmask=<value temporarily unavailable, due to
optimizations>) at nsterm.m:3524
#8  0x000000010015aeba in wait_reading_process_output (
    time_limit=140734799786480, nsecs=1606398448,
    read_kbd=1606398448, wait_for_cell=140734799786480,
    wait_proc=0x7fff5fbfb1f0, just_wait_proc=0,
    do_display=false) at process.c:4635
#9  0x0000000100156c51 in Faccept_process_output (
    process=37711, seconds=0, millisec=0,
    just_this_one=34693796629315584) at process.c:4025
#10 0x000000010011695b in Ffuncall (nargs=37711,
    args=0x100116adc) at eval.c:2786
#11 0x000000010014eec8 in exec_byte_code (bytestr=0,
    vector=140734799786848, maxdepth=32,
    args_template=0, nargs=4300852416, args=0x100511860)
    at bytecode.c:900
#12 0x0000000100119367 in eval_sub (form=2)
    at eval.c:2146
#13 0x0000000100119f68 in internal_lisp_condition_case (
    var=4320145466, bodyform=4356807126,
    handlers=4356628086) at eval.c:1243
#14 0x000000010014fad1 in exec_byte_code (bytestr=0,
    vector=140734799787552, maxdepth=32,
    args_template=4320145466, nargs=4300852416,
    args=0x100511860) at bytecode.c:1096
#15 0x0000000100119b72 in funcall_lambda (
    fun=140734799787648, nargs=1,
    arg_vector=0x7fff5fbfb680) at eval.c:3007
#16 0x0000000100116a07 in Ffuncall (nargs=4320145466,
    args=0x1030e7d62) at eval.c:2824
#17 0x000000010014eec8 in exec_byte_code (bytestr=0,
    vector=140734799787952, maxdepth=48,
    args_template=0, nargs=4300852416, args=0x100511860)
    at bytecode.c:900
#18 0x0000000100119b72 in funcall_lambda (
    fun=140734799788048, nargs=5,
    arg_vector=0x7fff5fbfb810) at eval.c:3007
#19 0x0000000100116a07 in Ffuncall (nargs=2,
    args=0x1030e7d02) at eval.c:2824
#20 0x000000010014eec8 in exec_byte_code (bytestr=0,
    vector=140734799788416, maxdepth=140734799788232,
    args_template=-6, nargs=4300852416,
    args=0x100511860) at bytecode.c:900
#21 0x0000000100119b72 in funcall_lambda (
    fun=140734799788512, nargs=3,
    arg_vector=0x7fff5fbfb9e0) at eval.c:3007
#22 0x0000000100116a07 in Ffuncall (nargs=6,
    args=0x1030ef802) at eval.c:2824
#23 0x000000010014eec8 in exec_byte_code (bytestr=0,
    vector=140734799788864, maxdepth=96,
    args_template=140734799788688, nargs=4300852416,
    args=0x100511860) at bytecode.c:900
#24 0x0000000100119b72 in funcall_lambda (
    fun=140734799788960, nargs=1,
    arg_vector=0x7fff5fbfbba0) at eval.c:3007
#25 0x0000000100116a07 in Ffuncall (nargs=4,
    args=0x103231232) at eval.c:2824
#26 0x000000010014eec8 in exec_byte_code (bytestr=0,
    vector=140734799789264, maxdepth=48,
    args_template=4296348880, nargs=4300852416,
    args=0x100511860) at bytecode.c:900
#27 0x0000000100119b72 in funcall_lambda (
    fun=140734799789360, nargs=1,
    arg_vector=0x7fff5fbfbd30) at eval.c:3007
#28 0x0000000100116a07 in Ffuncall (nargs=2,
    args=0x103231872) at eval.c:2824
#29 0x00000001001162b2 in Fapply (
    nargs=140734799789584, args=0x7fff5fbfbe10)
    at eval.c:2252
#30 0x0000000100116a20 in Ffuncall (nargs=2,
    args=0x104801a1a) at eval.c:2756
#31 0x000000010014eec8 in exec_byte_code (bytestr=0,
    vector=140734799789872, maxdepth=32,
    args_template=4320145466, nargs=4300852416,
    args=0x100511860) at bytecode.c:900
#32 0x0000000100119367 in eval_sub (form=3)
    at eval.c:2146
#33 0x0000000100119f68 in internal_lisp_condition_case (
    var=4320293082, bodyform=4346942950,
    handlers=4346941574) at eval.c:1243
#34 0x000000010014fad1 in exec_byte_code (bytestr=0,
    vector=140734799790592, maxdepth=48,
    args_template=4296348880, nargs=4300852416,
    args=0x100511860) at bytecode.c:1096
#35 0x0000000100119b72 in funcall_lambda (
    fun=140734799790688, nargs=2,
    arg_vector=0x7fff5fbfc260) at eval.c:3007
#36 0x0000000100116a07 in Ffuncall (nargs=4320293082,
    args=0x10482da3a) at eval.c:2824
#37 0x00000001001162b2 in Fapply (
    nargs=140734799790912, args=0x7fff5fbfc340)
    at eval.c:2252
#38 0x0000000100116a20 in Ffuncall (nargs=3,
    args=0x104801a1a) at eval.c:2756
#39 0x000000010014eec8 in exec_byte_code (bytestr=0,
    vector=140734799791232, maxdepth=64,
    args_template=140734799791064, nargs=4300852416,
    args=0x100511860) at bytecode.c:900
#40 0x0000000100119b72 in funcall_lambda (
    fun=140734799791328, nargs=2,
    arg_vector=0x7fff5fbfc4e0) at eval.c:3007
#41 0x0000000100116a07 in Ffuncall (nargs=4,
    args=0x103a80b92) at eval.c:2824
#42 0x00000001001162b2 in Fapply (
    nargs=140734799791552, args=0x7fff5fbfc5c0)
    at eval.c:2252
#43 0x0000000100119271 in eval_sub (form=3)
    at eval.c:2112
#44 0x0000000100118455 in internal_catch (tag=3,
    func=0x100118d90 <eval_sub>, arg=3) at eval.c:1060
#45 0x000000010014fa64 in exec_byte_code (bytestr=0,
    vector=140734799792240, maxdepth=32,
    args_template=4320145466, nargs=4300852416,
    args=0x100511860) at bytecode.c:1081
#46 0x0000000100119367 in eval_sub (form=4347364418)
    at eval.c:2146
#47 0x0000000100118455 in internal_catch (
    tag=4347364418, func=0x100118d90 <eval_sub>,
    arg=4347364418) at eval.c:1060
#48 0x000000010014fa64 in exec_byte_code (bytestr=0,
    vector=140734799792928, maxdepth=64,
    args_template=4356361968, nargs=4300852416,
    args=0x100511860) at bytecode.c:1081
#49 0x0000000100119b72 in funcall_lambda (
    fun=140734799793024, nargs=0,
    arg_vector=0x7fff5fbfcb80) at eval.c:3007
#50 0x0000000100116a07 in Ffuncall (nargs=4379989450,
    args=0x103087295) at eval.c:2824
#51 0x0000000100119271 in eval_sub (form=1)
    var=4320293082, bodyform=4345849974,
    handlers=4345851526) at eval.c:1243
#53 0x000000010014fad1 in exec_byte_code (bytestr=0,
    vector=140734799793888, maxdepth=48,
    args_template=4356361759, nargs=4300852416,
    args=0x100511860) at bytecode.c:1096
#54 0x0000000100119b72 in funcall_lambda (
    fun=140734799793984, nargs=2,
    arg_vector=0x7fff5fbfcf40) at eval.c:3007
#55 0x0000000100116a07 in Ffuncall (nargs=4320293082,
    args=0x1050be41a) at eval.c:2824
#56 0x0000000100118aa2 in call2 (fn=Cannot access memory
at address 0x0
) at eval.c:2584
#57 0x00000001000d7e86 in Fverify_visited_file_modtime (
    buf=4379632666) at fileio.c:5204
#58 0x0000000100119129 in eval_sub (form=4379632666)
    at eval.c:2088
#59 0x00000001001192e0 in eval_sub (form=4379632666)
    at eval.c:2125
#60 0x0000000100114279 in For (args=4379632666)
    at eval.c:260
#61 0x0000000100119129 in eval_sub (form=4379632666)
    at eval.c:2088
#62 0x00000001001142c9 in Fand (args=4379632666)
    at eval.c:284
#63 0x0000000100119129 in eval_sub (form=4379632666)
    at eval.c:2088
#64 0x0000000100114279 in For (args=4379632666)
    at eval.c:260
#65 0x0000000100119129 in eval_sub (form=4379632666)
    at eval.c:2088
#66 0x000000010011620d in Feval (form=4298492406,
    lexical=4320221018) at eval.c:2005
#67 0x0000000100118203 in internal_condition_case_1 (
    bfun=0x1000a5e90 <eval_dyn>, arg=4379632666,
    handlers=4320212234,
    hfun=0x1000a04a0 <menu_item_eval_property_1>)
    at eval.c:1327
#68 0x00000001000a61bf in menu_item_eval_property
[inlined] () at
#/private/tmp/emacs-24.2.93/src/keyboard.c:7583
#69 0x00000001000a61bf in parse_menu_item (
    item=4379632666, inmenubar=1606407936)
    at keyboard.c:7759
#70 0x000000010004d233 in single_menu_item (
    key=140734799796064, item=4379632666,
    dummy=4303019493, skp_v=0x7fff5fbfd760)
    at menu.c:339
#71 0x00000001000b4c8c in map_keymap_item [inlined] ()
    at /private/tmp/emacs-24.2.93/src/keymap.c:560
#72 0x00000001000b4c8c in map_keymap_internal (
    map=4378911770, fun=0x10004d210 <single_menu_item>,
    args=4320145466, data=0x7fff5fbfd7b0)
    at keymap.c:600
#73 0x000000010004d1ab in single_keymap_panes (
    keymap=4355477174, pane_name=4297570889,
    prefix=4370638410, maxdepth=10) at menu.c:305
#74 0x000000010004d6f4 in parse_single_submenu (
    item_key=140734799796336,
    item_name=140734799796336, maps=4300841832)
    at menu.c:561
#75 0x0000000100198aa9 in ns_update_menubar (
    f=0x7fff5fbfdb10, submenu=0x7fff5fbfdb10,
    deep_p=208) at nsmenu.m:256
#76 0x00007fff8a946c09 in -[NSMenu
_populateFromDelegateWithEventRef:] ()
#77 0x00007fff8a83b38c in -[NSMenu
#_populateWithEventRef:] ()
#78 0x00007fff8a945e33 in -[NSCarbonMenuImpl
#_carbonPopulateEvent:handlerCallRef:] ()
#79 0x00007fff8a9459bb in NSSLMMenuEventHandler ()
#80 0x00007fff93202234 in DispatchEventToHandlers ()
#81 0x00007fff93201840 in SendEventToEventTargetInternal
    ()
#82 0x00007fff9320167a in
SendEventToEventTargetWithOptions ()
#83 0x00007fff93233d29 in SendMenuPopulate ()
#84 0x00007fff93380195 in SendMenuOpening ()
#85 0x00007fff933836d9 in DrawTheMenu ()
#86 0x00007fff93383be3 in MenuChanged ()
#87 0x00007fff93253a2f in TrackMenuCommon ()
#88 0x00007fff9324ef13 in MenuSelectCore ()
#89 0x00007fff9324e592 in _HandleMenuSelection2 ()
#90 0x00007fff8a8461da in _NSHandleCarbonMenuEvent ()
#91 0x00007fff8a7dbcc9 in _DPSNextEvent ()
#92 0x00007fff8a7db07d in -[NSApplication
#nextEventMatchingMask:untilDate:inMode:dequeue:] ()
#93 0x00007fff8a7d79b9 in -[NSApplication run] ()
#94 0x000000010018cc70 in ns_read_socket (
    terminal=0x7fff5fbfeba8, hold_quit=0x7fff5fbfed90)
    at nsterm.m:3423
#95 0x00000001000a89cf in gobble_input ()
    at keyboard.c:6767
#96 0x00000001000a8af5 in get_input_pending [inlined] ()
    at /private/tmp/emacs-24.2.93/src/keyboard.c:6686
#97 0x00000001000a8af5 in
detect_input_pending_run_timers (do_display=true) at
#keyboard.c:10273
#98 0x00000001000054c2 in sit_for (timeout=140,
    display_option=1, reading=true) at dispnew.c:5939
#99 0x00000001000ac87a in read_char (
    commandflag=1606414640, nmaps=140734799802672,
    maps=0x7fff5fbff130,
    prev_event=4768577271755702285,
    used_mouse_menu=0x7fff5fbff130,
    end_time=0x7fff5fbff130) at keyboard.c:2669
#100 0x00000001000afbcf in read_key_sequence ()
    at keyboard.c:2800
#101 0x00000001000b1648 in command_loop_1 ()
    at keyboard.c:1459
#102 0x0000000100118359 in internal_condition_case (
    bfun=0x1000b0240 <command_loop_1>,
    handlers=4320212234, hfun=0x1000b16d0 <cmd_error>)
    at eval.c:1289
#103 0x00000001000b021e in command_loop_2 (
    ignore=140734799803272) at keyboard.c:1168
#104 0x0000000100118455 in internal_catch (
    tag=140734799803272,
    func=0x1000b01e0 <command_loop_2>,
    arg=140734799803272) at eval.c:1060
#105 0x00000001000b1c50 in command_loop [inlined] ()
    at /private/tmp/emacs-24.2.93/src/keyboard.c:1147
#106 0x00000001000b1c50 in recursive_edit_1 ()
    at keyboard.c:779
#107 0x00000001000a264d in Frecursive_edit ()
    at keyboard.c:843
#108 0x000000010009f4e7 in main (argc=25241034,
    argv=0x7fff5fbff950) at emacs.c:1528