mcedit problem (2)
- From: murban <murban cs uni-magdeburg de>
- To: mc-devel gnome org
- Subject: mcedit problem (2)
- Date: Mon, 10 Dec 2001 18:15:55 +0100
Hi,
is the following problem known? Sometimes (usually a few times a day :-(
) if I press F4 to edit a .cc file with the internal editor, the
Midnight Commander hangs up. Here is the description of the problem:
The environment:
---
mc version: 4.5.99a
OS : Linux version 2.4.4-4GB (SuSE 7.2)
machine : i686 (AMD Athlon 700)
compiler : gcc version 2.95.3 20010315 (SuSE)
---
The configuration of the Midnight Commander (produced by `configure'):
---
Configuration:
Source code location: .
Compiler: gcc
Compiler flags: -g -O2 -Wall
File system: Midnight Commander Virtual File System
tarfs, mcfs, ftpfs, fish
Screen manager: SLang (system-installed library) with
terminfo
Install console saver: yes
Mouse support: GPM and xterm
X11 events support: no
Debugger code: none
With subshell support: yes
Internal editor: yes
Install path: /usr/bin, /usr/lib/mc
---
The program does not crash, it simply is caught in an endless loop. Here
is the stack trace (produced with `gdb /usr/bin/mc 670' while mc was
running):
---
#0 0x4017af04 in read () from /lib/libc.so.6
#1 0x401cb828 in __DTOR_END__ () from /lib/libc.so.6
#2 0x401230b1 in _IO_new_file_underflow () from /lib/libc.so.6
#3 0x401253db in _IO_default_uflow () from /lib/libc.so.6
#4 0x40124573 in __uflow () from /lib/libc.so.6
#5 0x40120616 in getc () from /lib/libc.so.6
#6 0x809bcfd in read_one_line (line=0xbfffcbb0, f=0x8103198) at
syntax.c:405
#7 0x809ca4c in edit_read_syntax_rules (edit=0x8117bd0, f=0x8103198) at
syntax.c:607
#8 0x809d278 in edit_read_syntax_file (edit=0x8117bd0, names=0x0,
syntax_file=0x812c550 "/home/mat/.mc/cedit/Syntax",
editor_file=0x81037e8 "CBuilder.cc", first_line=0x80d0d20 "#include
\"CSyntax.h\"", type=0x0) at syntax.c:925
#9 0x809d4b1 in edit_load_syntax (edit=0x8117bd0, names=0x0, type=0x0)
at syntax.c:993
#10 0x808e73f in edit_init (edit=0x0, lines=23, columns=80,
filename=0x810a4c0 "CBuilder.cc", text=0x0, dir=0x80bae0b "",
text_size=0) at edit.c:564
#11 0x8097fb7 in edit (_file=0x812b468 "CBuilder.cc", line=1) at
editwidget.c:120
#12 0x8051da0 in do_edit_at_line (what=0x812b468 "CBuilder.cc",
start_line=1) at cmd.c:300
#13 0x8051e24 in do_edit (what=0x812b468 "CBuilder.cc") at cmd.c:319
#14 0x8051e8a in edit_cmd (panel=0x80f3f08) at cmd.c:326
#15 0x8053ae4 in edit_panel_cmd () at cmd.c:1142
#16 0x808c00a in buttonbar_callback (h=0x80f2510, bb=0x810a030, msg=5,
par=1004) at widget.c:2257
#17 0x8059986 in dlg_try_hotkey (h=0x80f2510, d_key=1004) at dlg.c:656
#18 0x8059a79 in dlg_key_event (h=0x80f2510, d_key=1004) at dlg.c:699
#19 0x8059dce in dlg_process_event (h=0x80f2510, key=1004,
event=0xbffff714) at dlg.c:827
#20 0x8059e95 in run_dlg (h=0x80f2510) at dlg.c:859
#21 0x806ef9f in setup_panels_and_run_mc () at main.c:2047
#22 0x806f1b6 in do_nc () at main.c:2111
#23 0x806fc43 in main (argc=2, argv=0xbffff7fc) at main.c:2799
#24 0x400d0c6f in __libc_start_main () from /lib/libc.so.6
---
The program is caught in the following loop (syntax.c:404+):
---
404 for (;;) {
405 c = fgetc (f);
406 if (c == EOF) {
407 if (errno == EINTR)
408 continue;
---
It tries to read my own `c.syntax' (see the attachment). `c' and `errno'
always have the same values: c is -1 and errno is EINTR. `f' has the
following value (produced with `p *f' in the gdb):
---
$2 = {_flags = -72538984,
_IO_read_ptr = 0x40263000 "6\n keyword %% brightred/16\n keyword
%\\[#0\\s-\\+,\\]\\[0123456789\\]\\[.\\]\\[0123456789\\]\\[L\\]\\{eEfgGoxX\\}
brightred/16\n keyword
%\\[0\\s-\\+,\\]\\[0123456789\\]\\[.\\]\\[0123456789\\]\\[hl\\]\\{diu\\}
brightred/"...,
_IO_read_end = 0x40263000 "6\n keyword %% brightred/16\n keyword
%\\[#0\\s-\\+,\\]\\[0123456789\\]\\[.\\]\\[0123456789\\]\\[L\\]\\{eEfgGoxX\\}
brightred/16\n keyword
%\\[0\\s-\\+,\\]\\[0123456789\\]\\[.\\]\\[0123456789\\]\\[hl\\]\\{diu\\}
brightred/"...,
_IO_read_base = 0x40263000 "6\n keyword %% brightred/16\n
keyword
%\\[#0\\s-\\+,\\]\\[0123456789\\]\\[.\\]\\[0123456789\\]\\[L\\]\\{eEfgGoxX\\}
brightred/16\n keyword
%\\[0\\s-\\+,\\]\\[0123456789\\]\\[.\\]\\[0123456789\\]\\[hl\\]\\{diu\\}
brightred/"...,
_IO_write_base = 0x40263000 "6\n keyword %% brightred/16\n
keyword
%\\[#0\\s-\\+,\\]\\[0123456789\\]\\[.\\]\\[0123456789\\]\\[L\\]\\{eEfgGoxX\\}
brightred/16\n keyword
%\\[0\\s-\\+,\\]\\[0123456789\\]\\[.\\]\\[0123456789\\]\\[hl\\]\\{diu\\}
brightred/"...,
_IO_write_ptr = 0x40263000 "6\n keyword %% brightred/16\n
keyword
%\\[#0\\s-\\+,\\]\\[0123456789\\]\\[.\\]\\[0123456789\\]\\[L\\]\\{eEfgGoxX\\}
brightred/16\n keyword
%\\[0\\s-\\+,\\]\\[0123456789\\]\\[.\\]\\[0123456789\\]\\[hl\\]\\{diu\\}
brightred/"...,
_IO_write_end = 0x40263000 "6\n keyword %% brightred/16\n
keyword
%\\[#0\\s-\\+,\\]\\[0123456789\\]\\[.\\]\\[0123456789\\]\\[L\\]\\{eEfgGoxX\\}
brightred/16\n keyword
%\\[0\\s-\\+,\\]\\[0123456789\\]\\[.\\]\\[0123456789\\]\\[hl\\]\\{diu\\}
brightred/"...,
_IO_buf_base = 0x40263000 "6\n keyword %% brightred/16\n keyword
%\\[#0\\s-\\+,\\]\\[0123456789\\]\\[.\\]\\[0123456789\\]\\[L\\]\\{eEfgGoxX\\}
brightred/16\n keyword
%\\[0\\s-\\+,\\]\\[0123456789\\]\\[.\\]\\[0123456789\\]\\[hl\\]\\{diu\\}
brightred/"...,
_IO_buf_end = 0x40264000 <Address 0x40264000 out of bounds>,
_IO_save_base = 0x0, _IO_backup_base = 0x0, _IO_save_end = 0x0, _markers
= 0x0,
_chain = 0x810a6c0, _fileno = 13, _blksize = 0, _old_offset = 0,
_cur_column = 0, _vtable_offset = 0 '\000', _shortbuf = "", _lock =
0x8103230,
_offset = -1, __pad1 = 0x0, __pad2 = 0x8103248, _mode = -1, _unused2 =
'\000' <repeats 51 times>}
---
Here are the files opened by mc (produced with `lsof -u mat'):
---
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
mc 670 mat cwd DIR 3,9 4096 558577
/home/mat/CParser
mc 670 mat rtd DIR 3,9 4096 2 /
mc 670 mat txt REG 3,9 1808493 196996 /usr/bin/mc
mc 670 mat mem REG 3,9 100793 1310758
/lib/ld-2.2.2.so
mc 670 mat mem REG 3,9 246 1081373
/usr/lib/locale/de_DE/LC_IDENTIFICATION
mc 670 mat mem REG 3,9 13 1081374
/usr/lib/locale/de_DE/LC_MEASUREMENT
mc 670 mat mem REG 3,9 46 1081379
/usr/lib/locale/de_DE/LC_TELEPHONE
mc 670 mat mem REG 3,9 149 1081370
/usr/lib/locale/de_DE/LC_ADDRESS
mc 670 mat mem REG 3,9 72 1081376
/usr/lib/locale/de_DE/LC_NAME
mc 670 mat mem REG 3,9 24 1081378
/usr/lib/locale/de_DE/LC_PAPER
mc 670 mat mem REG 3,9 44 786472
/usr/lib/locale/de_DE/LC_MESSAGES/SYS_LC_MESSAGES
mc 670 mat mem REG 3,9 280 1081375
/usr/lib/locale/de_DE/LC_MONETARY
mc 670 mat mem REG 3,9 2365 1081380
/usr/lib/locale/de_DE/LC_TIME
mc 670 mat mem REG 3,9 44 1081377
/usr/lib/locale/de_DE/LC_NUMERIC
mc 670 mat mem REG 3,9 423088 327892
/usr/lib/libslang.so.1.4.4
mc 670 mat mem REG 3,9 23242 327791
/usr/lib/libgpm.so.1.17.3
mc 670 mat mem REG 3,9 170566 327909
/usr/lib/libglib-1.2.so.0.0.10
mc 670 mat mem REG 3,9 1343073 1310763 /lib/libc.so.6
mc 670 mat mem REG 3,9 14328 1310767
/lib/libdl.so.2
mc 670 mat mem REG 3,9 171762 1310768 /lib/libm.so.6
mc 670 mat mem REG 3,9 319472 1310793
/lib/libncurses.so.5.2
mc 670 mat mem REG 3,9 138560 1081372
/usr/lib/locale/de_DE/LC_CTYPE
mc 670 mat mem REG 3,9 5768 852181
/usr/lib/gconv/ISO8859-1.so
mc 670 mat mem REG 3,9 57252 1310771
/lib/libnss_compat.so.2
mc 670 mat mem REG 3,9 92905 1310770
/lib/libnsl.so.1
mc 670 mat mem REG 3,9 76264 590225
/usr/share/locale/de/LC_MESSAGES/mc.mo
mc 670 mat 0u CHR 4,1 67320 /dev/tty1
mc 670 mat 1u CHR 4,1 67320 /dev/tty1
mc 670 mat 2u CHR 4,1 67320 /dev/tty1
mc 670 mat 3w REG 3,9 0 395093
/home/mat/.mc/tmp/mc-659
mc 670 mat 4u CHR 5,0 67318 /dev/tty
mc 670 mat 5w FIFO 0,0 8015 pipe
mc 670 mat 6r FIFO 0,0 8016 pipe
mc 670 mat 7u CHR 5,2 66601 /dev/ptmx
mc 670 mat 8w CHR 4,1 67320 /dev/tty1
mc 670 mat 9r FIFO 0,0 8021 pipe
mc 670 mat 10w FIFO 0,0 8021 pipe
mc 670 mat 11u unix 0xce363ae0 8060 socket
mc 670 mat 12r REG 3,9 5106 1116903
/home/mat/.mc/cedit/Syntax
mc 670 mat 13r REG 3,9 4657 624730
/home/mat/.mc/cedit/c.syntax
---
And with `strace -p 670' (670 was the PID of mc) the following list was
produced (endless, here is only one entry):
---
read(13, "", 4096) = 0
---
I hope that this is enough :-)))
Unfortunately I don't know who is interrupting `read' all the time. But
I think that the changes I made to `c.syntax' are the reason, but I
can't detect the problem :-(
It's really nerved because I have to kill the process and restart
Midnight Commander to go on.
Thanks in advance!
Matthias Urbancontext default
keyword whole auto green/24
keyword whole break green/24
keyword whole case green/24
keyword whole char green/24
keyword whole const green/24
keyword whole continue green/24
keyword whole default green/24
keyword whole do green/24
keyword whole double green/24
keyword whole else green/24
keyword whole enum green/24
keyword whole extern green/24
keyword whole float green/24
keyword whole for green/24
keyword whole goto green/24
keyword whole if green/24
keyword whole int green/24
keyword whole long green/24
keyword whole register green/24
keyword whole return green/24
keyword whole short green/24
keyword whole signed green/24
keyword whole sizeof green/24
keyword whole static green/24
keyword whole struct green/24
keyword whole switch green/24
keyword whole typedef green/24
keyword whole union green/24
keyword whole unsigned green/24
keyword whole void green/24
keyword whole volatile green/24
keyword whole while green/24
keyword whole asm green/24
keyword whole catch green/24
keyword whole class green/24
keyword whole friend green/24
keyword whole delete green/24
keyword whole inline green/24
keyword whole new green/24
keyword whole operator green/24
keyword whole private green/24
keyword whole protected green/24
keyword whole public green/24
keyword whole this green/24
keyword whole throw green/24
keyword whole template green/24
keyword whole try green/24
keyword whole virtual green/24
keyword whole bool green/24
keyword whole const_cast green/24
keyword whole dynamic_cast green/24
keyword whole explicit green/24
keyword whole false green/24
keyword whole mutable green/24
keyword whole namespace green/24
keyword whole reinterpret_cast green/24
keyword whole static_cast green/24
keyword whole true green/24
keyword whole typeid green/24
keyword whole typename green/24
keyword whole using green/24
keyword whole wchar_t green/24
keyword whole ... green/24
keyword /\* gray/22
keyword \*/ gray/22
keyword '\\\{"abtnvfr\}' brightred/16
keyword '\\\{0123\}\{01234567\}\{01234567\}' brightred/16
keyword '\\'' brightred/16
keyword '\\\\' brightred/16
keyword '\\0' brightred/16
keyword '\{\s!"#$%&()\*\+,-./0123456789:;<=>? ABCDEFGHIJKLMNOPQRSTUVWXYZ[]^_`abcdefghijklmnopqrstuvwxyz{|}~ ¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ\}' brightred/16
keyword :: cyan/14
keyword -> cyan/14
keyword >> cyan/14
keyword << cyan/14
keyword ++ cyan/14
keyword -- cyan/14
keyword != cyan/14
keyword == cyan/14
keyword \*= cyan/14
keyword \+= cyan/14
keyword /= cyan/14
keyword -= cyan/14
keyword %= cyan/14
keyword >>= cyan/14
keyword <<= cyan/14
keyword >= cyan/14
keyword <= cyan/14
keyword &= cyan/14
keyword |= cyan/14
keyword ^= cyan/14
keyword && cyan/14
keyword || cyan/14
keyword ->\* cyan/14
# keyword / cyan/24
keyword \+ cyan/14
keyword \* cyan/14
keyword > cyan/14
keyword < cyan/14
keyword - cyan/14
keyword % cyan/14
keyword = cyan/14
keyword { cyan/14
keyword } cyan/14
keyword ( cyan/15
keyword ) cyan/15
keyword [ cyan/14
keyword ] cyan/14
keyword , cyan/14
keyword : cyan/14
keyword ; cyan/19
keyword ~ cyan/14
keyword ^ cyan/14
keyword . cyan/14
keyword & cyan/14
keyword ! cyan/14
keyword #define\[\t\s\]\[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_0123456789\]\[\t\s\]0x\[0123456789abcdefABCDEF\] red/18
context exclusive /\* \*/ gray/22
spellcheck
context // \n gray/22
spellcheck
context linestart # \n red/18
keyword \\\n yellow/24
keyword /\**\*/ yellow/22
keyword "+" red/19
keyword <+> red/19
context " " brown/6
spellcheck
keyword \\" brightred/16
keyword \\\n brightred/16
keyword %% brightred/16
keyword %\[#0\s-\+,\]\[0123456789\]\[.\]\[0123456789\]\[L\]\{eEfgGoxX\} brightred/16
keyword %\[0\s-\+,\]\[0123456789\]\[.\]\[0123456789\]\[hl\]\{diu\} brightred/16
keyword %\[hl\]n brightred/16
keyword %\[.\]\[0123456789\]s brightred/16
keyword %[*] brightred/16
keyword %c brightred/16
keyword \\\{0123\}\{01234567\}\{01234567\} brightred/16
# keyword \\\x\[0123456789abcdefABCDEF\]+ brightred/16
keyword \\\\ brightred/16
keyword \\' brightred/16
keyword \\\{abtnvfr\} brightred/16
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