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bug#719: marked as done (Crash opening UNC file)

From: Emacs bug Tracking System
Subject: bug#719: marked as done (Crash opening UNC file)
Date: Sat, 20 Dec 2008 15:40:04 +0000 
Your message dated Sat, 20 Dec 2008 23:33:41 +0800
with message-id <494D1055.5030508@gnu.org>
and subject line Re: Crash opening UNC file.
has caused the Emacs bug report #719,
regarding Crash opening UNC file
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@emacsbugs.donarmstrong.com
immediately.)


-- 
719: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=719
Emacs Bug Tracking System
Contact owner@emacsbugs.donarmstrong.com with problems
--- Begin Message --- Subject: Crash opening UNC file Date: Thu, 14 Aug 2008 11:00:59 -0400 
Whenever I try to open a file on a share on another computer, emacs crashes.

For instance, trying to open the file: "\\server\software\file.txt"
causes a crash.  This happens if I use find-file, drag a file onto
emacs, or double click to open a file on a hidden network share.

If I double-escape all the backslashes, I still get the crash, eg:
emacs \\\\server\\software\\file.txt


If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
c:/Program Files/emacs-22.2/etc/DEBUG for instructions.

bt full:
--------------------------------------------------------------------------------
Load new symbol table from "/cygdrive/c/Program Files/emacs-22.2/bin/emacs.exe"?
 (y or n) y
Reading symbols from /cygdrive/c/Program Files/emacs-22.2/bin/emacs.exe...done.
Loaded symbols for /cygdrive/c/WINNT/system32/NTDLL.DLL
Loaded symbols for /cygdrive/c/WINNT/system32/ADVAPI32.DLL
Loaded symbols for /cygdrive/c/WINNT/system32/KERNEL32.DLL
Loaded symbols for /cygdrive/c/WINNT/system32/rpcrt4.dll
Loaded symbols for /cygdrive/c/WINNT/system32/secur32.dll
Loaded symbols for /cygdrive/c/WINNT/system32/comctl32.dll
Loaded symbols for /cygdrive/c/WINNT/system32/GDI32.DLL
Loaded symbols for /cygdrive/c/WINNT/system32/USER32.DLL
Loaded symbols for /cygdrive/c/WINNT/system32/comdlg32.dll
Loaded symbols for /cygdrive/c/WINNT/system32/SHLWAPI.DLL
Loaded symbols for /cygdrive/c/WINNT/system32/msvcrt.dll
Loaded symbols for /cygdrive/c/WINNT/system32/SHELL32.DLL
Loaded symbols for /cygdrive/c/WINNT/system32/mpr.dll
Loaded symbols for /cygdrive/c/WINNT/system32/OLE32.DLL
Loaded symbols for /cygdrive/c/WINNT/system32/winmm.dll
Loaded symbols for /cygdrive/c/WINNT/system32/winspool.drv
Loaded symbols for /cygdrive/c/WINNT/system32/MSCTF.DLL
Loaded symbols for /cygdrive/c/Program Files/emacs-22.2/bin/libXpm.dll
Loaded symbols for /cygdrive/c/WINNT/system32/crtdll.dll
Loaded symbols for /cygdrive/c/WINNT/system32/OLEAUT32.DLL
[Switching to thread 3636.0x8d4]
(gdb) bt full
#0  0x77f9193d in ntdll!DbgUiConnectToDbg ()
   from /cygdrive/c/WINNT/system32/NTDLL.DLL
No symbol table info available.
#1  0x7c57fecd in KERNEL32!DebugActiveProcess ()
   from /cygdrive/c/WINNT/system32/KERNEL32.DLL
No symbol table info available.
#2  0x7c57b3bc in lstrcmpiW () from /cygdrive/c/WINNT/system32/KERNEL32.DLL
No symbol table info available.
#3  0x00000000 in ?? ()
No symbol table info available.



In GNU Emacs 22.2.1 (i386-mingw-nt5.0.2195)
 of 2008-03-26 on RELEASE
Windowing system distributor `Microsoft Corp.', version 5.0.2195
configured using `configure --with-gcc (3.4)'

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: ENU
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: C++/l

Minor modes in effect:
  fast-lock-mode: t
  encoded-kbd-mode: t
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
  abbrev-mode: t

Recent input:

Recent messages:
Loading semantic-c...done
File mode specification error: (error "Autoloading failed to define
function semantic-default-c-setup")
Loading vc-svn...done
Loading vc...done
Mark saved where search started
Mark set [2 times]
Making completion list...
Loading eieio-opt...done
Making completion list...
Loading emacsbug...done

--- End Message ---
--- Begin Message --- Subject: Re: Crash opening UNC file. Date: Sat, 20 Dec 2008 23:33:41 +0800 User-agent: Thunderbird 2.0.0.18 (Windows/20081105) This turned out to be a bug in expand-file-name triggered by the project file searching code in rails.el. 

A simple way to reproduce the bug was:

(expand-file-name "//server/path/../../../")

which caused an assertion failure on Windows.

I have checked in a fix.

--- End Message ---
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