bug#2563: rgrep killing emacs

[alex]

On Sat, 14 Mar 2009, Chong Yidong wrote:

> Could you please show the results of the following commands:
>
> f 24
> p reason
> xtype
> xstring
> Those are Emacs specific---to use them, you need to run gdb from within
> the Emacs src directory.

Aha, so it reads .gdbinit. Understand. Done (I've also re-executed emacs 
and included bt again):

Core was generated by `/home/alex/emacstest/bin/emacs -Q'.
Program terminated with signal 6, Aborted.
[New process 10537]
#0  0xffffe424 in __kernel_vsyscall ()
SIGINT is used by the debugger.
Are you sure you want to change it? (y or n) [answered Y; input not from 
terminal]
DISPLAY = :0.0
TERM = xterm
Breakpoint 1 at 0x81ca02d: file emacs.c, line 432.
Breakpoint 2 at 0x81eab1a: file sysdep.c, line 1144.
(gdb) f 24
#24 0x082ad582 in exec_sentinel (proc=144902356, reason=145516011) at 
process.c:6752
6752      internal_condition_case_1 (read_process_output_call,
(gdb) p reason
$1 = 145516011
(gdb) xtype
Lisp_String
(gdb) xstring
$2 = (struct Lisp_String *) 0x8ac65e8
"\360\237\321\200\320\265\321\200\321\213\320\262\320\260\320\275\320\270\320\265\n"
(gdb) bt
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb7487406 in kill () from /lib/libc.so.6
#2  0x081ca022 in fatal_error_signal (sig=6) at emacs.c:403
#3  <signal handler called>
#4  0xffffe424 in __kernel_vsyscall ()
#5  0xb7487406 in kill () from /lib/libc.so.6
#6  0x081ca042 in abort () at emacs.c:432
#7  0x080ef4d2 in multibyte_chars_in_text (
    ptr=0xbfde7fa5 
"\360\237\321\200\320\265\321\200\321\213\320\262\320\260\320\275\320\270\320\265\177\336\277\330\335\a\b\001",
    nbytes=25) at character.c:622
#8  0x080ef2e6 in chars_in_text (
    ptr=0xbfde7fa0 "Grep 
\360\237\321\200\320\265\321\200\321\213\320\262\320\260\320\275\320\270\320\265\177\336\277\330\335\a\b\001",
    nbytes=25) at character.c:601
#9  0x081faf12 in insert_1 (string=0x2929 <Address 0x2929 out of bounds>, 
nbytes=25, inherit=1, prepare=0, before_markers=0)
    at insdel.c:832
#10 0x0807d4ed in message_dolog (
    m=0xbfde7fa0 "Grep 
\360\237\321\200\320\265\321\200\321\213\320\262\320\260\320\275\320\270\320\265\177\336\277\330\335\a\b\001",
    nbytes=25, nlflag=1, multibyte=1) at xdisp.c:7770
#11 0x0807deb2 in message3 (m=145514939, nbytes=25, multibyte=1) at xdisp.c:8005
#12 0x082511c3 in Fmessage (nargs=2, args=0xbfde80d4) at editfns.c:3382
#13 0x0825b3f8 in Ffuncall (nargs=3, args=0xbfde80d0) at eval.c:3025
#14 0x0829fb8a in Fbyte_code (bytestr=142199779, vector=143429004, maxdepth=64) 
at bytecode.c:678
#15 0x0825bcc9 in funcall_lambda (fun=145327484, nargs=3, 
arg_vector=0xbfde83e4) at eval.c:3231
#16 0x0825b779 in Ffuncall (nargs=4, args=0xbfde83e0) at eval.c:3090
#17 0x0829fb8a in Fbyte_code (bytestr=142186451, vector=145404468, maxdepth=32) 
at bytecode.c:678
#18 0x0825bcc9 in funcall_lambda (fun=145329012, nargs=2, 
arg_vector=0xbfde86e4) at eval.c:3231
#19 0x0825b779 in Ffuncall (nargs=3, args=0xbfde86e0) at eval.c:3090
#20 0x0825acb8 in Fapply (nargs=2, args=0xbfde8780) at eval.c:2532
#21 0x0825b072 in apply1 (fn=145525385, arg=141933957) at eval.c:2796
#22 0x082aa7cc in read_process_output_call (fun_and_args=141933949) at 
process.c:5149
#23 0x082591a2 in internal_condition_case_1 (bfun=0x82aa7a9 
<read_process_output_call>, arg=141933949, handlers=138953065,
    hfun=0x82ad3a2 <exec_sentinel_error_handler>) at eval.c:1559
#24 0x082ad582 in exec_sentinel (proc=144902356, reason=145516011) at 
process.c:6752
#25 0x082ad756 in status_notify (deleting_process=0x0) at process.c:6856
#26 0x082a9c59 in wait_reading_process_output (time_limit=0, microsecs=999611, 
read_kbd=-1, do_display=1, wait_for_cell=138909897,
    wait_proc=0x0, just_wait_proc=0) at process.c:4676
#27 0x081d34c5 in kbd_buffer_get_event (kbp=0xbfde8d64, used_mouse_menu=0x0, 
end_time=0xbfde8f98) at keyboard.c:4089
#28 0x081d16e3 in read_char (commandflag=0, nmaps=0, maps=0x0, 
prev_event=138909945, used_mouse_menu=0x0, end_time=0xbfde8f98)
    at keyboard.c:3055
---Type <return> to continue, or q <return> to quit---
#29 0x0827f4de in read_filtered_event (no_switch_frame=0, ascii_required=0, 
error_nonascii=0, input_method=0, seconds=8) at lread.c:704
#30 0x0827f769 in Fread_event (prompt=138909897, 
inherit_input_method=138909897, seconds=8) at lread.c:818
#31 0x0825b544 in Ffuncall (nargs=4, args=0xbfde9090) at eval.c:3050
#32 0x0829fb8a in Fbyte_code (bytestr=137380227, vector=137380244, maxdepth=40) 
at bytecode.c:678
#33 0x0825bcc9 in funcall_lambda (fun=137380164, nargs=1, 
arg_vector=0xbfde93a4) at eval.c:3231
#34 0x0825b779 in Ffuncall (nargs=2, args=0xbfde93a0) at eval.c:3090
#35 0x0829fb8a in Fbyte_code (bytestr=145526995, vector=145527532, maxdepth=16) 
at bytecode.c:678
#36 0x0825a6cd in Feval (form=145182821) at eval.c:2381
#37 0x08258f50 in internal_lisp_condition_case (var=138909897, 
bodyform=145182821, handlers=145182837) at eval.c:1456
#38 0x082a0831 in Fbyte_code (bytestr=145526627, vector=145529724, maxdepth=96) 
at bytecode.c:868
#39 0x0825bcc9 in funcall_lambda (fun=145530356, nargs=2, 
arg_vector=0xbfde9af4) at eval.c:3231
#40 0x0825b779 in Ffuncall (nargs=3, args=0xbfde9af0) at eval.c:3090
#41 0x0829fb8a in Fbyte_code (bytestr=139378547, vector=145306812, 
maxdepth=112) at bytecode.c:678
#42 0x0825bcc9 in funcall_lambda (fun=145055668, nargs=3, 
arg_vector=0xbfde9e24) at eval.c:3231
#43 0x0825b779 in Ffuncall (nargs=4, args=0xbfde9e20) at eval.c:3090
#44 0x0825acb8 in Fapply (nargs=2, args=0xbfde9ec0) at eval.c:2532
#45 0x0825b072 in apply1 (fn=140077529, arg=145138397) at eval.c:2796
#46 0x082554da in Fcall_interactively (function=140077529, 
record_flag=138909945, keys=138948332) at callint.c:390
#47 0x0825b544 in Ffuncall (nargs=4, args=0xbfdea160) at eval.c:3050
#48 0x0825b111 in call3 (fn=139074505, arg1=140077529, arg2=138909945, 
arg3=138909897) at eval.c:2874
#49 0x081de26e in Fcommand_execute (cmd=140077529, record_flag=138909945, 
keys=138909897, special=138909897) at keyboard.c:10421
#50 0x081de5d1 in Fexecute_extended_command (prefixarg=138909897) at 
keyboard.c:10534
#51 0x0825b4ea in Ffuncall (nargs=2, args=0xbfdea390) at eval.c:3044
#52 0x08256e4a in Fcall_interactively (function=138949305, 
record_flag=138909897, keys=138948332) at callint.c:870
#53 0x0825b544 in Ffuncall (nargs=4, args=0xbfdea650) at eval.c:3050
#54 0x0825b111 in call3 (fn=139074505, arg1=138949305, arg2=138909897, 
arg3=138909897) at eval.c:2874
#55 0x081de26e in Fcommand_execute (cmd=138949305, record_flag=138909897, 
keys=138909897, special=138909897) at keyboard.c:10421
#56 0x081cf781 in command_loop_1 () at keyboard.c:1899
#57 0x08259076 in internal_condition_case (bfun=0x81cdfe1 <command_loop_1>, 
handlers=138953065, hfun=0x81cd9b9 <cmd_error>)
    at eval.c:1511
#58 0x081cdd3a in command_loop_2 () at keyboard.c:1357
#59 0x08258b36 in internal_catch (tag=138949089, func=0x81cdd17 
<command_loop_2>, arg=138909897) at eval.c:1247
#60 0x081cdcf0 in command_loop () at keyboard.c:1336
#61 0x081cd5ca in recursive_edit_1 () at keyboard.c:951
#62 0x081cd736 in Frecursive_edit () at keyboard.c:1013
#63 0x081cbe6f in main (argc=2, argv=0xbfdeaf64) at emacs.c:1852

Lisp Backtrace:
"message" (0xbfde80d4)
---Type <return> to continue, or q <return> to quit---
"compilation-handle-exit" (0xbfde83e4)
"compilation-sentinel" (0xbfde86e4)
"read-event" (0xbfde9094)
"sit-for" (0xbfde93a4)
"byte-code" (0xbfde9620)
"compilation-start" (0xbfde9af4)
"rgrep" (0xbfde9e24)
"call-interactively" (0xbfdea164)
"execute-extended-command" (0xbfdea394)
"call-interactively" (0xbfdea654)
(gdb)

> Thanks.