bug#11351: 24.1.50; marker does not point anywhere

[Sam Steingold]

(gdb) where
#0  0x00007ffff4182613 in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00000000004b8ce4 in XTflash (f=0xdcc0f0) at
/home/sds/src/emacs/trunk/src/xterm.c:3165
#2  XTring_bell (f=0xdcc0f0) at /home/sds/src/emacs/trunk/src/xterm.c:3236
#3  0x00000000004f5a48 in cmd_error_internal (data=81666438,
context=0x7fffffffa0f0 "")
    at /home/sds/src/emacs/trunk/src/keyboard.c:1103
#4  0x00000000004f5bc6 in cmd_error (data=81666438) at
/home/sds/src/emacs/trunk/src/keyboard.c:1036
#5  0x0000000000566af9 in internal_condition_case (bfun=0x500d20
<command_loop_1>, handlers=12019090, hfun=0x4f5ab0 <cmd_error>)
    at /home/sds/src/emacs/trunk/src/eval.c:1438
#6  0x00000000004f3f1e in command_loop_2 (ignore=<optimized out>) at
/home/sds/src/emacs/trunk/src/keyboard.c:1160
#7  0x00000000005669a8 in internal_catch (tag=Cannot access memory at
address 0xffffffffffffffe0
) at /home/sds/src/emacs/trunk/src/eval.c:1205
#8  0x00000000004f54ff in command_loop () at
/home/sds/src/emacs/trunk/src/keyboard.c:1125
#9  recursive_edit_1 () at /home/sds/src/emacs/trunk/src/keyboard.c:759
#10 0x00000000004f58bc in Frecursive_edit () at
/home/sds/src/emacs/trunk/src/keyboard.c:823
#11 0x000000000056882b in Ffuncall (nargs=<optimized out>,
args=0x7fffffffa4e0) at /home/sds/src/emacs/trunk/src/eval.c:2932
#12 0x00000000005a0e86 in exec_byte_code (bytestr=<optimized out>,
vector=<optimized out>, maxdepth=<optimized out>,
    args_template=<optimized out>, nargs=<optimized out>,
args=<optimized out>) at /home/sds/src/emacs/trunk/src/bytecode.c:785
#13 0x00000000005682d1 in funcall_lambda (fun=71160869,
nargs=<optimized out>, arg_vector=0x7fffffffa778)
    at /home/sds/src/emacs/trunk/src/eval.c:3166
#14 0x000000000056864b in Ffuncall (nargs=3, args=0x7fffffffa770) at
/home/sds/src/emacs/trunk/src/eval.c:2996
#15 0x00000000005696e7 in Fapply (nargs=<optimized out>,
args=0x7fffffffa830) at /home/sds/src/emacs/trunk/src/eval.c:2440
#16 0x0000000000568ba0 in apply1 (fn=12088930, arg=<optimized out>) at
/home/sds/src/emacs/trunk/src/eval.c:2678
#17 0x0000000000568d51 in call_debugger (arg=64172038) at
/home/sds/src/emacs/trunk/src/eval.c:227
#18 0x00000000005691b6 in maybe_call_debugger (data=64172086,
sig=12019090, conditions=8632246)
    at /home/sds/src/emacs/trunk/src/eval.c:1863
#19 Fsignal (error_symbol=12019090, data=64172086) at
/home/sds/src/emacs/trunk/src/eval.c:1684
#20 0x0000000000569399 in xsignal (error_symbol=<optimized out>,
data=<optimized out>) at /home/sds/src/emacs/trunk/src/eval.c:1719
#21 0x0000000000569e67 in xsignal1 (error_symbol=12019090,
arg=<optimized out>) at /home/sds/src/emacs/trunk/src/eval.c:1734
#22 0x0000000000569eec in verror (m=<optimized out>, ap=<optimized
out>) at /home/sds/src/emacs/trunk/src/eval.c:1932
#23 0x0000000000569f7c in error (m=<optimized out>) at
/home/sds/src/emacs/trunk/src/eval.c:1944
#24 0x000000000051dff4 in marker_position (marker=<optimized out>) at
/home/sds/src/emacs/trunk/src/marker.c:777
#25 0x00000000005128a5 in overlays_in (beg=1, end=69055, extend=1,
vec_ptr=0x7fffffffba68, len_ptr=0x7fffffffba60, prev_ptr=0x0,
    next_ptr=0x0) at /home/sds/src/emacs/trunk/src/buffer.c:2676
#26 0x0000000000512bf3 in Foverlays_in (beg=4, end=276220) at
/home/sds/src/emacs/trunk/src/buffer.c:3915
#27 0x0000000000568814 in Ffuncall (nargs=<optimized out>,
args=0x7fffffffbb20) at /home/sds/src/emacs/trunk/src/eval.c:2938
#28 0x00000000005a0e86 in exec_byte_code (bytestr=<optimized out>,
vector=<optimized out>, maxdepth=<optimized out>,
    args_template=<optimized out>, nargs=<optimized out>,
args=<optimized out>) at /home/sds/src/emacs/trunk/src/bytecode.c:785
#29 0x00000000005682d1 in funcall_lambda (fun=62190229,
nargs=<optimized out>, arg_vector=0x7fffffffbce8)
    at /home/sds/src/emacs/trunk/src/eval.c:3166
#30 0x000000000056864b in Ffuncall (nargs=3, args=0x7fffffffbce0) at
/home/sds/src/emacs/trunk/src/eval.c:2996
#31 0x00000000005a0e86 in exec_byte_code (bytestr=<optimized out>,
vector=<optimized out>, maxdepth=<optimized out>,
    args_template=<optimized out>, nargs=<optimized out>,
args=<optimized out>) at /home/sds/src/emacs/trunk/src/bytecode.c:785
#32 0x00000000005682d1 in funcall_lambda (fun=26281189,
nargs=<optimized out>, arg_vector=0x7fffffffbeb8)
    at /home/sds/src/emacs/trunk/src/eval.c:3166
#33 0x000000000056864b in Ffuncall (nargs=4, args=0x7fffffffbeb0) at
/home/sds/src/emacs/trunk/src/eval.c:2996
#34 0x00000000005a0e86 in exec_byte_code (bytestr=<optimized out>,
vector=<optimized out>, maxdepth=<optimized out>,
    args_template=<optimized out>, nargs=<optimized out>,
args=<optimized out>) at /home/sds/src/emacs/trunk/src/bytecode.c:785
#35 0x00000000005682d1 in funcall_lambda (fun=63041893,
nargs=<optimized out>, arg_vector=0x7fffffffc088)
    at /home/sds/src/emacs/trunk/src/eval.c:3166
#36 0x000000000056864b in Ffuncall (nargs=1, args=0x7fffffffc080) at
/home/sds/src/emacs/trunk/src/eval.c:2996
#37 0x00000000005a0e86 in exec_byte_code (bytestr=<optimized out>,
vector=<optimized out>, maxdepth=<optimized out>,
    args_template=<optimized out>, nargs=<optimized out>,
args=<optimized out>) at /home/sds/src/emacs/trunk/src/bytecode.c:785
#38 0x00000000005682d1 in funcall_lambda (fun=27010709,
nargs=<optimized out>, arg_vector=0x7fffffffc248)
    at /home/sds/src/emacs/trunk/src/eval.c:3166
#39 0x000000000056864b in Ffuncall (nargs=3, args=0x7fffffffc240) at
/home/sds/src/emacs/trunk/src/eval.c:2996
#40 0x00000000005696e7 in Fapply (nargs=<optimized out>,
args=0x7fffffffc300) at /home/sds/src/emacs/trunk/src/eval.c:2440
#41 0x0000000000568ba0 in apply1 (fn=26676674, arg=<optimized out>) at
/home/sds/src/emacs/trunk/src/eval.c:2678
#42 0x0000000000566c2e in internal_condition_case_1 (bfun=0x5a3700
<read_process_output_call>, arg=64346630, handlers=11966850,
    hfun=0x5a36c0 <exec_sentinel_error_handler>) at
/home/sds/src/emacs/trunk/src/eval.c:1486
#43 0x00000000005a2bd0 in exec_sentinel (proc=82070021,
reason=48556705) at /home/sds/src/emacs/trunk/src/process.c:6503
#44 0x00000000005a4f69 in status_notify (deleting_process=0x0) at
/home/sds/src/emacs/trunk/src/process.c:6606
#45 0x00000000005a815b in wait_reading_process_output (time_limit=30,
microsecs=0, read_kbd=<optimized out>, do_display=1,
    wait_for_cell=11966850, wait_proc=<optimized out>,
just_wait_proc=0) at /home/sds/src/emacs/trunk/src/process.c:4477
#46 0x000000000041b164 in sit_for (timeout=120, reading=1,
do_display=1) at /home/sds/src/emacs/trunk/src/dispnew.c:6067
#47 0x00000000004fe498 in read_char (commandflag=1, nmaps=3,
maps=0x7fffffffcd20, prev_event=11966850,
    used_mouse_menu=0x7fffffffceb0, end_time=0x0) at
/home/sds/src/emacs/trunk/src/keyboard.c:2692
#48 0x00000000004ff217 in read_key_sequence (keybuf=0x7fffffffcf10,
prompt=11966850, dont_downcase_last=0,
    can_return_switch_frame=1, fix_current_buffer=1, bufsize=30) at
/home/sds/src/emacs/trunk/src/keyboard.c:9335
#49 0x0000000000500ef5 in command_loop_1 () at
/home/sds/src/emacs/trunk/src/keyboard.c:1449
#50 0x0000000000566ac6 in internal_condition_case (bfun=0x500d20
<command_loop_1>, handlers=12019090, hfun=0x4f5ab0 <cmd_error>)
    at /home/sds/src/emacs/trunk/src/eval.c:1448
#51 0x00000000004f3f1e in command_loop_2 (ignore=<optimized out>) at
/home/sds/src/emacs/trunk/src/keyboard.c:1160
#52 0x00000000005669a8 in internal_catch (tag=Cannot access memory at
address 0xffffffffffffffe0
) at /home/sds/src/emacs/trunk/src/eval.c:1205
#53 0x00000000004f5587 in command_loop () at
/home/sds/src/emacs/trunk/src/keyboard.c:1139
#54 recursive_edit_1 () at /home/sds/src/emacs/trunk/src/keyboard.c:759
#55 0x00000000004f58bc in Frecursive_edit () at
/home/sds/src/emacs/trunk/src/keyboard.c:823
#56 0x000000000040fe8d in main (argc=1, argv=<optimized out>) at
/home/sds/src/emacs/trunk/src/emacs.c:1711

Lisp Backtrace:
"recursive-edit" (0xffffa4e8)
"debug" (0xffffa778)
"overlays-in" (0xffffbb28)
"gdb-remove-strings" (0xffffbce8)
"gdb-remove-breakpoint-icons" (0xffffbeb8)
"gdb-reset" (0xffffc088)
"gud-sentinel" (0xffffc248)


On Fri, Apr 27, 2012 at 14:47, Sam Steingold <sds@gnu.org> wrote:
> just got this:
>
> Debugger entered--Lisp error: (error "Marker does not point anywhere")
>  overlays-in(1 69055)
>  gdb-remove-strings(1 69055)
>  gdb-remove-breakpoint-icons(1 69055 t)
>  gdb-reset()
>  gud-sentinel(#<process gud-lisp.run> "finished\n")
>
> on quit in *gud* buffer.
>
> in gdb-remove-strings, buffer is error.d, an existing buffer.
> emacs is now dead (when I tried to switch to the error.d buffer).



-- 
Sam Steingold <http://sds.podval.org> <http://www.childpsy.net/>