Crash in handling tar files (Was: GDB debugger mode for Emacs in ELPA)

[filerz-emacs@yahoo.com]

Hi,

----- Original Message ----
> From: Eli Zaretskii <eliz@gnu.org>

> Which tarball causes this crash, and where can I find it?  Also, would
> the OP please post a detailed recipe to reproduce this crash, starting
> with "emacs -Q"?

Steps to reproduce:
1. Create a small tar file with 2 or 3 files in it
2. emacs -q
3. M-x load-library tar-mode
4. Open the tar file
You see the crash (with earlier posted stack trace)

I saw another crash with the following steps:
1. Repeat #1, #2 from the previous scenario
2. Open the tar file, you will see the file listing
3. Position the cursor on one of the listed files and hit enter (open the file in the archive)
You see a crash. Stack trace follows for 2nd scenario:

(gdb) bt
#0  0x0119ea03 in re_search_2 (bufp=0x1377928, str1=0x389f1b0 "ix\" \"Latin-3\" 'quail-use-package\n \"3<\" \"Latin-3 character input method with postfix modifiers\
#1  0x0114fabf in search_buffer (string=44210019, pos=513, pos_byte=513, lim=33830, lim_byte=33830, n=1, RE=1, trt=53475332, inverse_trt=53474820, posix=0) at searc
#2  0x0114f425 in search_command (string=44210019, bound=270640, noerror=43726897, count=43726849, direction=1, RE=1, posix=0) at search.c:972
#3  0x01153352 in Fre_search_forward (regexp=44210019, bound=270640, noerror=43726897, count=43726849) at search.c:2306
#4  0x01023f1a in Ffuncall (nargs=4, args=0x82ebf0) at eval.c:3052
#5  0x011171ee in Fbyte_code (bytestr=18840531, vector=18840548, maxdepth=32) at bytecode.c:678
#6  0x010245fb in funcall_lambda (fun=18840484, nargs=2, arg_vector=0x82ef04) at eval.c:3229
#7  0x010240cf in Ffuncall (nargs=3, args=0x82ef00) at eval.c:3088
#8  0x011171ee in Fbyte_code (bytestr=18841155, vector=18841172, maxdepth=48) at bytecode.c:678
#9  0x010245fb in funcall_lambda (fun=18841108, nargs=2, arg_vector=0x82f224) at eval.c:3229
#10 0x010240cf in Ffuncall (nargs=3, args=0x82f220) at eval.c:3088
#11 0x011171ee in Fbyte_code (bytestr=18841827, vector=18841844, maxdepth=32) at bytecode.c:678
#12 0x010245fb in funcall_lambda (fun=18841780, nargs=2, arg_vector=0x82f534) at eval.c:3229
#13 0x010240cf in Ffuncall (nargs=3, args=0x82f530) at eval.c:3088
#14 0x011171ee in Fbyte_code (bytestr=53331763, vector=45444612, maxdepth=48) at bytecode.c:678
#15 0x010245fb in funcall_lambda (fun=49306564, nargs=0, arg_vector=0x82f884) at eval.c:3229
#16 0x010240cf in Ffuncall (nargs=1, args=0x82f880) at eval.c:3088
#17 0x01023950 in apply1 (fn=48507577, arg=43726849) at eval.c:2783
#18 0x0111a380 in Fcall_interactively (function=48507577, record_flag=43726849, keys=43760388) at callint.c:389
#19 0x01023ee3 in Ffuncall (nargs=4, args=0x82fb18) at eval.c:3048
#20 0x01023a52 in call3 (fn=43921409, arg1=48507577, arg2=43726849, arg3=43726849) at eval.c:2868
#21 0x01015344 in Fcommand_execute (cmd=48507577, record_flag=43726849, keys=43726849, special=43726849) at keyboard.c:10420
#22 0x01007823 in command_loop_1 () at keyboard.c:1910
#23 0x01021a66 in internal_condition_case (bfun=0x10060cf <command_loop_1>, handlers=43790553, hfun=0x1005acc <cmd_error>) at eval.c:1511
#24 0x01005e18 in command_loop_2 () at keyboard.c:1367
#25 0x01021576 in internal_catch (tag=43786625, func=0x1005df8 <command_loop_2>, arg=43726849) at eval.c:1247
#26 0x01005dcf in command_loop () at keyboard.c:1346
#27 0x010056d2 in recursive_edit_1 () at keyboard..c:955
#28 0x01005840 in Frecursive_edit () at keyboard.c:1017
#29 0x010027dc in main (argc=2, argv=0xa34128) at emacs.c:1762

Lisp Backtrace:
"re-search-forward" (0x82ebf4)
"auto-coding-regexp-alist-lookup" (0x82ef04)
"find-auto-coding" (0x82f224)
"set-auto-coding" (0x82f534)
"tar-extract" (0x82f884)
"call-interactively" (0x82fb1c)

-dhruva



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