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Help debugging backtrace

From: Alex Bennée
Subject: Help debugging backtrace
Date: Wed, 23 Oct 2013 21:25:22 +0100
User-agent: mu4e; emacs 24.3.1


I'm having problems with my chromebook extension [1] when I kill the
frame. Message shows the following backtrace:

crmbk-delete-frame-handler: saved config
turning off mode
crmbk-frame-mode: cleaning up, running hooks: (crmbk-reset-search 
crmbk-reenable-touchpad crmbk-remove-powerd-hooks)
Error during redisplay: (run-hook-with-args crmbk-delete-frame-handler #<frame 
Edit Server Frame 0x3830530>) signaled (invalid-function (lambda "Clean-up any 
hooks into powerd and it's dbus interface" (message (format "in 
crmbk-remove-powerd-hooks: %s" post-command-hook)) (remove-hook (quote 
post-command-hook) (quote crmbk-notify-powerd-user-activity)) (message "done")))

I've been adding (messages) to the hooks but they never get called. I
did try using gdb and got this backtrace:

Breakpoint 3, safe_eval_handler (arg=63086294, nargs=3, args=0x7fff8305a690) at 
2426      add_to_log ("Error during redisplay: %S signaled %S",
#0  safe_eval_handler (arg=63086294, nargs=3, args=0x7fff8305a690) at 
#1  0x00000000005c8121 in internal_condition_case_n (bfun=0x5cabcd <Ffuncall>, 
nargs=3, args=0x7fff8305a690, handlers=12777858, 
    hfun=0x42f89f <safe_eval_handler>) at eval.c:1403
#2  0x000000000042fae0 in safe_call (nargs=3, func=12897042) at xdisp.c:2461
#3  0x000000000042fb92 in safe_call2 (fn=12897042, arg1=12957218, 
arg2=63025613) at xdisp.c:2494
#4  0x00000000004200f6 in delete_frame (frame=63025613, force=12777810) at 
#5  0x00000000004209ae in Fdelete_frame (frame=12777810, force=12777810) at 
#6  0x00000000005caf8b in Ffuncall (nargs=1, args=0x7fff8305aa30) at eval.c:2781
#7  0x00000000005c5a3c in Fcall_interactively (function=12821010, 
record_flag=12777810, keys=12813029) at callint.c:852
#8  0x00000000005cafb6 in Ffuncall (nargs=4, args=0x7fff8305ad38) at eval.c:2785
#9  0x0000000000611dd6 in exec_byte_code (bytestr=59268177, vector=58672925, 
maxdepth=16, args_template=12777810, nargs=0, args=0x0)
    at bytecode.c:900
#10 0x00000000005cb96d in funcall_lambda (fun=58673005, nargs=3, 
arg_vector=0x7fff8305b248) at eval.c:3010
#11 0x00000000005cb158 in Ffuncall (nargs=4, args=0x7fff8305b240) at eval.c:2827
#12 0x00000000005ca99f in call3 (fn=12914226, arg1=12821010, arg2=12777810, 
arg3=12777810) at eval.c:2603
#13 0x0000000000541016 in Fcommand_execute (cmd=12821010, record_flag=12777810, 
keys=12777810, special=12777810) at keyboard.c:10241
#14 0x000000000052fdee in command_loop_1 () at keyboard.c:1587
#15 0x00000000005c7d04 in internal_condition_case (bfun=0x52f59b 
<command_loop_1>, handlers=12829490, hfun=0x52ee90 <cmd_error>) at eval.c:1289
#16 0x000000000052f2b4 in command_loop_2 (ignore=12777810) at keyboard.c:1168
#17 0x00000000005c76d8 in internal_catch (tag=12825330, func=0x52f28e 
<command_loop_2>, arg=12777810) at eval.c:1060
#18 0x000000000052f264 in command_loop () at keyboard.c:1147
#19 0x000000000052e9dd in recursive_edit_1 () at keyboard.c:779
#20 0x000000000052eb83 in Frecursive_edit () at keyboard.c:843
#21 0x000000000052ca0a in main (argc=2, argv=0x7fff8305b9e8) at emacs.c:1528

Lisp Backtrace:
"delete-frame" (0x8305aa38)
"ad-Orig-call-interactively" (0x8305ad40)
"call-interactively" (0x8305b248)
"delete-frame" (0x8305aa38)
"ad-Orig-call-interactively" (0x8305ad40)
"call-interactively" (0x8305b248)
Missing argument 0 in user function.
A debugging session is active.

        Inferior 1 [process 30226] will be detached.

Quit anyway? (y or n) Detaching from program: 
/home/alex/src/emacs/install/bin/emacs, process 30226

Any ideas what's going on?


Alex Bennée

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