Re: segfault Xserver...current version (1.10, not 1.8)

[Jon TURNEY <jon.turney@dronecode.org.uk>]

On 16/08/2011 08:16, Linda Walsh wrote:
> Christopher Faylor wrote:
>> On Tue, Aug 09, 2011 at 05:55:31PM -0700, Linda Walsh wrote:
>>> Jon TURNEY wrote:
>>>
>>>>> Following the instructions at [2] to obtain an Xserver backtrace would
>>>>> also be of great help.
>>>> [2] http://x.cygwin.com/devel/backtrace.html
>>>>
>>> Reading symbols from /usr/bin/Xwin...(no debugging symbols found)...done.
>>
>> From the above web page:
>>
>> To generate a useful backtrace, you will need an X server built with
>> debugging symbols. X server snapshots are built with debugging symbols
>> for this reason. Download the latest X Server snapshot from
>> ftp://cygwin.com/pub/cygwinx, uncompress it using bunzip2, and move it
>> to /usr/bin/XWin.exe
> ----
> Well, I DID follow the instructions provided by John....maybe that page
> should point to binaries that have symbols?

WFM

(Although it seems that the execute bit is removed by the time we download the 
file, so I need to amend the instructions in that regard)

Perhaps you can generate a similar transcript?

> $ file /usr/bin/XWin.exe
> /usr/bin/XWin.exe: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows
>
> $ wget ftp://cygwin.com/pub/cygwinx/XWin.20110803-git-a493c0465e56ce0b.exe.bz2
> --2011-08-16 13:19:25--  ftp://cygwin.com/pub/cygwinx/XWin.20110803-git-a493c0465e56ce0b.exe.bz2
>            => `XWin.20110803-git-a493c0465e56ce0b.exe.bz2'
> Resolving cygwin.com (cygwin.com)... 209.132.180.131
> Connecting to cygwin.com (cygwin.com)|209.132.180.131|:21... connected.
> Logging in as anonymous ... Logged in!
> ==> SYST ... done.    ==> PWD ... done.
> ==> TYPE I ... done.  ==> CWD (1) /pub/cygwinx ... done.
> ==> SIZE XWin.20110803-git-a493c0465e56ce0b.exe.bz2 ... 4123185
> ==> PASV ... done.    ==> RETR XWin.20110803-git-a493c0465e56ce0b.exe.bz2 ... done.
> Length: 4123185 (3.9M) (unauthoritative)
>
> 100%[==============================================================================>] 4,123,185    109K/s   in 41s
>
> 2011-08-16 13:20:09 (97.3 KB/s) - `XWin.20110803-git-a493c0465e56ce0b.exe.bz2' saved [4123185]
>
>
> $ bunzip2 XWin.20110803-git-a493c0465e56ce0b.exe.bz2
>
> $ chmod +x XWin.20110803-git-a493c0465e56ce0b.exe
>
> $ mv XWin.20110803-git-a493c0465e56ce0b.exe /usr/bin/XWin.exe
>
> $ file /usr/bin/XWin.exe
> /usr/bin/XWin.exe: PE32 executable (GUI) Intel 80386, for MS Windows
>
> $ gdb --args XWin
> GNU gdb (GDB) 7.3.50.20110727-cvs (cygwin-special)
> Copyright (C) 2011 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "i686-cygwin".
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>...
> Reading symbols from /usr/bin/XWin...done.
> (gdb)


-- 
Jon TURNEY
Volunteer Cygwin/X X Server maintainer

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