Re: Unwanted undo-boundary

[Lennart Borgman]

On Sun, Feb 14, 2010 at 11:32 PM, Lennart Borgman
<address@hidden> wrote:
>
> The xbacktrace:s are here, just in case I misunderstand this:
>
>    Breakpoint 3, Fundo_boundary () at undo.c:303
>    303       if (EQ (current_buffer->undo_list, Qt))
>    (gdb) xbacktrace
>    "nxml-indent-line" (0x82d7b4)
>    "funcall" (0x82d7b0)


The bt backtrace looks more useful. It looks like the undo boundaries
are coming from sequences like this:

    (gdb) bt
    #0  Fundo_boundary () at undo.c:303
    #1  0x0102e079 in record_marker_adjustment (marker=61172811,
adjustment=-80) at undo.c:211
    #2  0x0114df23 in adjust_markers_for_delete (from=1, from_byte=1,
to=86, to_byte=86) at insdel.c:373
    #3  0x0115149c in del_range_2 (from=1, from_byte=1, to=86,
to_byte=86, ret_string=0) at insdel.c:1946
    #4  0x01151044 in del_range_1 (from=1, to=86, prepare=1,
ret_string=0) at insdel.c:1814
    #5  0x01150f4e in del_range (from=1, to=86) at insdel.c:1782

and

    (gdb) bt
    #0  Fundo_boundary () at undo.c:303
    #1  0x0102dd77 in record_point (pt=35) at undo.c:90
    #2  0x0102debc in record_insert (beg=35, length=13) at undo.c:141
    #3  0x0114f1ce in insert_from_string_1 (string=60834385, pos=0,
pos_byte=0, nchars=13, nbytes=13, inherit=0,
        before_markers=0) at insdel.c:1098
    #4  0x0114efa7 in insert_from_string (string=60834385, pos=0,
pos_byte=0, length=13, length_byte=13, inherit=0)
        at insdel.c:1022
    #5  0x010aa7ef in general_insert_function (insert_func=0x114e834 <insert>,
        insert_from_string_func=0x114ef53 <insert_from_string>,
inherit=0, nargs=1, args=0x82d540) at editfns.c:2201
    #6  0x010aa85a in Finsert (nargs=1, args=0x1f) at editfns.c:2245

Below are full bt from the above:

    (gdb) bt
    #0  Fundo_boundary () at undo.c:303
    #1  0x0102e079 in record_marker_adjustment (marker=61359803,
adjustment=-2) at undo.c:211
    #2  0x0114df23 in adjust_markers_for_delete (from=68,
from_byte=68, to=70, to_byte=70) at insdel.c:373
    #3  0x0115149c in del_range_2 (from=68, from_byte=68, to=70,
to_byte=70, ret_string=0) at insdel.c:1946
    #4  0x01151044 in del_range_1 (from=68, to=70, prepare=1,
ret_string=0) at insdel.c:1814
    #5  0x01150f4e in del_range (from=68, to=70) at insdel.c:1782
    #6  0x010ad02b in Fdelete_region (start=272, end=280) at editfns.c:3184
    #7  0x0116ae68 in Fbyte_code (bytestr=19484841, vector=19484861,
maxdepth=16) at bytecode.c:1425
    #8  0x01023c01 in funcall_lambda (fun=19484805, nargs=1,
arg_vector=0x82e040) at eval.c:3211
    #9  0x010238ec in apply_lambda (fun=19484805, args=58808382,
eval_flag=1) at eval.c:3135
    #10 0x010227be in Feval (form=58808374) at eval.c:2388
    #11 0x0101f675 in Fprogn (args=61050782) at eval.c:415
    #12 0x010223c2 in Feval (form=61050774) at eval.c:2293
    #13 0x0101f5a2 in Fif (args=61050758) at eval.c:363
    #14 0x010223c2 in Feval (form=61050750) at eval.c:2293
    #15 0x0102287f in Feval (form=58808358) at eval.c:2404
    #16 0x0101f675 in Fprogn (args=58808398) at eval.c:415
    #17 0x01020541 in FletX (args=58748758) at eval.c:1012
    #18 0x010223c2 in Feval (form=58750438) at eval.c:2293
    #19 0x0101f675 in Fprogn (args=58808470) at eval.c:415
    #20 0x01023bb5 in funcall_lambda (fun=58808478, nargs=3,
arg_vector=0x82e790) at eval.c:3204
    #21 0x010238ec in apply_lambda (fun=58808478, args=58804846,
eval_flag=1) at eval.c:3135
    #22 0x010228a9 in Feval (form=58804838) at eval.c:2406
    #23 0x010206b5 in Flet (args=58804886) at eval.c:1052
    #24 0x010223c2 in Feval (form=58804822) at eval.c:2293
    #25 0x0101f4f7 in For (args=58805062) at eval.c:311
    #26 0x010223c2 in Feval (form=58804766) at eval.c:2293
    #27 0x0101f675 in Fprogn (args=58805070) at eval.c:415
    #28 0x01020837 in Fwhile (args=58804758) at eval.c:1090
    #29 0x010223c2 in Feval (form=58804606) at eval.c:2293
    #30 0x0101f675 in Fprogn (args=58805142) at eval.c:415
    #31 0x0102077e in Flet (args=58804550) at eval.c:1068
    #32 0x010223c2 in Feval (form=58804238) at eval.c:2293
    #33 0x0101f675 in Fprogn (args=58805198) at eval.c:415
    #34 0x010a7fd4 in Fsave_excursion (args=58806230) at editfns.c:1012
    #35 0x010223c2 in Feval (form=58806182) at eval.c:2293
    #36 0x0101f675 in Fprogn (args=58803206) at eval.c:415
    #37 0x01023bb5 in funcall_lambda (fun=58803214, nargs=2,
arg_vector=0x82f204) at eval.c:3204
    #38 0x01023777 in Ffuncall (nargs=3, args=0x82f200) at eval.c:3081
    #39 0x011692ab in Fbyte_code (bytestr=19486977, vector=19486997,
maxdepth=12) at bytecode.c:679
    #40 0x01023c01 in funcall_lambda (fun=19486917, nargs=2,
arg_vector=0x82f3a0) at eval.c:3211
    #41 0x010238ec in apply_lambda (fun=19486917, args=61655158,
eval_flag=1) at eval.c:3135
    #42 0x010227be in Feval (form=61655166) at eval.c:2388
    #43 0x010234c3 in Ffuncall (nargs=2, args=0x82f5d0) at eval.c:3024
    #44 0x011692ab in Fbyte_code (bytestr=19335121, vector=19335141,
maxdepth=20) at bytecode.c:679
    #45 0x01023c01 in funcall_lambda (fun=19335069, nargs=2,
arg_vector=0x82f814) at eval.c:3211
    #46 0x010236e0 in Ffuncall (nargs=3, args=0x82f810) at eval.c:3070
    #47 0x01022bb0 in Fapply (nargs=2, args=0x82f8b0) at eval.c:2503
    #48 0x01022fda in apply1 (fn=45636330, arg=61704094) at eval.c:2773
    #49 0x01166f1b in Fcall_interactively (function=45636330,
record_flag=45279234, keys=45300485) at callint.c:396
    #50 0x01023517 in Ffuncall (nargs=4, args=0x82fb40) at eval.c:3030
    #51 0x010230af in call3 (fn=45430218, arg1=45636330,
arg2=45279234, arg3=45279234) at eval.c:2850
    #52 0x01014f56 in Fcommand_execute (cmd=45636330,
record_flag=45279234, keys=45279234, special=45279234)
        at keyboard.c:10507
    #53 0x0100789b in command_loop_1 () at keyboard.c:1904
    #54 0x01020fe4 in internal_condition_case (bfun=0x100621d
<command_loop_1>, handlers=45335770,
        hfun=0x1005c0e <cmd_error>) at eval.c:1490
    #55 0x01005f82 in command_loop_2 () at keyboard.c:1360
    #56 0x01020ad5 in internal_catch (tag=45334962, func=0x1005f5f
<command_loop_2>, arg=45279234) at eval.c:1226
    #57 0x01005f38 in command_loop () at keyboard.c:1339
    #58 0x0100582a in recursive_edit_1 () at keyboard.c:954
    #59 0x0100598e in Frecursive_edit () at keyboard.c:1016
    #60 0x010027e6 in main (argc=4, argv=0xa92980) at emacs.c:1833

    Lisp Backtrace:
    "indent-line-to" (0x82e040)

and

    (gdb) bt
    #0  Fundo_boundary () at undo.c:303
    #1  0x0102dd77 in record_point (pt=35) at undo.c:90
    #2  0x0102debc in record_insert (beg=35, length=13) at undo.c:141
    #3  0x0114f1ce in insert_from_string_1 (string=60834385, pos=0,
pos_byte=0, nchars=13, nbytes=13, inherit=0,
        before_markers=0) at insdel.c:1098
    #4  0x0114efa7 in insert_from_string (string=60834385, pos=0,
pos_byte=0, length=13, length_byte=13, inherit=0)
        at insdel.c:1022
    #5  0x010aa7ef in general_insert_function (insert_func=0x114e834 <insert>,
        insert_from_string_func=0x114ef53 <insert_from_string>,
inherit=0, nargs=1, args=0x82d540) at editfns.c:2201
    #6  0x010aa85a in Finsert (nargs=1, args=0x1f) at editfns.c:2245
    #7  0x010224bf in Feval (form=58751694) at eval.c:2319
    #8  0x0101f675 in Fprogn (args=58751710) at eval.c:415
    #9  0x0101f5c2 in Fif (args=58751574) at eval.c:364
    #10 0x010223c2 in Feval (form=58751550) at eval.c:2293
    #11 0x0101f675 in Fprogn (args=61016206) at eval.c:415
    #12 0x010a801e in Fsave_current_buffer (args=61016182) at editfns.c:1028
    #13 0x010223c2 in Feval (form=61016174) at eval.c:2293
    #14 0x0102287f in Feval (form=58751534) at eval.c:2404
    #15 0x0101f675 in Fprogn (args=58751910) at eval.c:415
    #16 0x01020541 in FletX (args=58751166) at eval.c:1012
    #17 0x010223c2 in Feval (form=58752982) at eval.c:2293
    #18 0x0101f675 in Fprogn (args=61016878) at eval.c:415
    #19 0x0101f5c2 in Fif (args=61016862) at eval.c:364
    #20 0x010223c2 in Feval (form=61016854) at eval.c:2293
    #21 0x0102287f in Feval (form=58752902) at eval.c:2404
    #22 0x0101f675 in Fprogn (args=58751926) at eval.c:415
    #23 0x0102077e in Flet (args=58752894) at eval.c:1068
    #24 0x010223c2 in Feval (form=58752822) at eval.c:2293
    #25 0x0101f675 in Fprogn (args=58750126) at eval.c:415
    #26 0x01023bb5 in funcall_lambda (fun=58750134, nargs=1,
arg_vector=0x82e0b0) at eval.c:3204
    #27 0x010238ec in apply_lambda (fun=58750134, args=58747454,
eval_flag=1) at eval.c:3135
    #28 0x010228a9 in Feval (form=58747446) at eval.c:2406
    #29 0x010206b5 in Flet (args=58747478) at eval.c:1052
    #30 0x010223c2 in Feval (form=58747398) at eval.c:2293
    #31 0x0101f675 in Fprogn (args=58747630) at eval.c:415
    #32 0x0101f634 in Fcond (args=58747718) at eval.c:392
    #33 0x010223c2 in Feval (form=58747382) at eval.c:2293
    #34 0x0101f675 in Fprogn (args=58808350) at eval.c:415
    #35 0x01020541 in FletX (args=58748758) at eval.c:1012
    #36 0x010223c2 in Feval (form=58750438) at eval.c:2293
    #37 0x0101f675 in Fprogn (args=58808470) at eval.c:415
    #38 0x01023bb5 in funcall_lambda (fun=58808478, nargs=3,
arg_vector=0x82e790) at eval.c:3204
    #39 0x010238ec in apply_lambda (fun=58808478, args=58804846,
eval_flag=1) at eval.c:3135
    #40 0x010228a9 in Feval (form=58804838) at eval.c:2406
    #41 0x010206b5 in Flet (args=58804886) at eval.c:1052
    #42 0x010223c2 in Feval (form=58804822) at eval.c:2293
    #43 0x0101f4f7 in For (args=58805062) at eval.c:311
    #44 0x010223c2 in Feval (form=58804766) at eval.c:2293
    #45 0x0101f675 in Fprogn (args=58805070) at eval.c:415
    #46 0x01020837 in Fwhile (args=58804758) at eval.c:1090
    #47 0x010223c2 in Feval (form=58804606) at eval.c:2293
    #48 0x0101f675 in Fprogn (args=58805142) at eval.c:415
    #49 0x0102077e in Flet (args=58804550) at eval.c:1068
    #50 0x010223c2 in Feval (form=58804238) at eval.c:2293
    #51 0x0101f675 in Fprogn (args=58805198) at eval.c:415
    #52 0x010a7fd4 in Fsave_excursion (args=58806230) at editfns.c:1012
    #53 0x010223c2 in Feval (form=58806182) at eval.c:2293
    #54 0x0101f675 in Fprogn (args=58803206) at eval.c:415
    #55 0x01023bb5 in funcall_lambda (fun=58803214, nargs=2,
arg_vector=0x82f204) at eval.c:3204
    #56 0x01023777 in Ffuncall (nargs=3, args=0x82f200) at eval.c:3081
    #57 0x011692ab in Fbyte_code (bytestr=19486977, vector=19486997,
maxdepth=12) at bytecode.c:679
    #58 0x01023c01 in funcall_lambda (fun=19486917, nargs=2,
arg_vector=0x82f3a0) at eval.c:3211
    #59 0x010238ec in apply_lambda (fun=19486917, args=61655158,
eval_flag=1) at eval.c:3135
    #60 0x010227be in Feval (form=61655166) at eval.c:2388
    #61 0x010234c3 in Ffuncall (nargs=2, args=0x82f5d0) at eval.c:3024
    #62 0x011692ab in Fbyte_code (bytestr=19335121, vector=19335141,
maxdepth=20) at bytecode.c:679
    #63 0x01023c01 in funcall_lambda (fun=19335069, nargs=2,
arg_vector=0x82f814) at eval.c:3211
    #64 0x010236e0 in Ffuncall (nargs=3, args=0x82f810) at eval.c:3070
    #65 0x01022bb0 in Fapply (nargs=2, args=0x82f8b0) at eval.c:2503
    #66 0x01022fda in apply1 (fn=45636330, arg=61704094) at eval.c:2773
    #67 0x01166f1b in Fcall_interactively (function=45636330,
record_flag=45279234, keys=45300485) at callint.c:396
    #68 0x01023517 in Ffuncall (nargs=4, args=0x82fb40) at eval.c:3030
    #69 0x010230af in call3 (fn=45430218, arg1=45636330,
arg2=45279234, arg3=45279234) at eval.c:2850
    #70 0x01014f56 in Fcommand_execute (cmd=45636330,
record_flag=45279234, keys=45279234, special=45279234)
        at keyboard.c:10507
    #71 0x0100789b in command_loop_1 () at keyboard.c:1904
    #72 0x01020fe4 in internal_condition_case (bfun=0x100621d
<command_loop_1>, handlers=45335770,
        hfun=0x1005c0e <cmd_error>) at eval.c:1490
    #73 0x01005f82 in command_loop_2 () at keyboard.c:1360
    #74 0x01020ad5 in internal_catch (tag=45334962, func=0x1005f5f
<command_loop_2>, arg=45279234) at eval.c:1226
    #75 0x01005f38 in command_loop () at keyboard.c:1339
    #76 0x0100582a in recursive_edit_1 () at keyboard.c:954
    #77 0x0100598e in Frecursive_edit () at keyboard.c:1016
    #78 0x010027e6 in main (argc=4, argv=0xa92980) at emacs.c:1833

    Lisp Backtrace:
    "insert" (0x82d540)