FreeTDS Development Group

[Frediano Ziglio <freddy77 AT gmail.com>]

Il giorno mer, 26/11/2008 alle 13.57 -0800, Vince ODea ha scritto:
> Thanks Edmundo,
> 
> Here's what this gives:
> 
> Core was generated by `tsql'.
> Program terminated with signal 11, Segmentation fault.
> warning: The shared libraries were not privately mapped; setting a
> breakpoint in a shared library will not work until you rerun the program.
> #0  0xc02f72f8 in __errno () from /usr/lib/nls/iconv/methods.2/lsbucs2.sl
> (gdb) where
> #0  0xc02f72f8 in __errno () from /usr/lib/nls/iconv/methods.2/lsbucs2..sl
> #1  0xc02236f0 in iconv () from /usr/lib/libc.2
> #2  0x2ced0 in tds_iconv ()
> #3  0x7b04a798 in ?? ()
> #4  0x785f7074 in ?? ()
> Cannot access memory at address 0xffffffee.
> (gdb)
> 
> 

Quite bad :(
Error occurs in __errno called by iconv which are two system
functions :(
Compiling again FreeTDS with debugging support could help a bit but not
that much... the only way I see is to narrow down the problem removing
everything not necessary till you get a small program that raise the
same issue. If you agree I could try (obviously I need a ssh/telnet
access and a normal account)

freddy77


> 
> 
> 
> ________________________________
> From: Edmundo Robles L. <erobles AT sensacd.com.mx>
> To: FreeTDS Development Group <freetds AT lists.ibiblio.org>
> Sent: Wednesday, November 26, 2008 7:26:08 PM
> Subject: Re: [freetds] Need some help connectiing to MSSQL with tsql
> 
> in the prompt shell
> first do:
> 
> gdb tsql core
> 
> after that, input the word 'where' in the gdb prompt '(gdb)'
> 
> 
> 
> Ing. Edmundo Robles Lopez.
> Analista Programador.
> 
> --
> 
> 
> 
> 
> -----Original Message-----
> From: freetds-bounces AT lists.ibiblio.org on behalf of Vince ODea
> Sent: Wed 11/26/2008 1:02 PM
> To: FreeTDS Development Group
> Subject: Re: [freetds] Need some help connectiing to MSSQL with tsql
> 
> Hi James,
> 
> None of the other tools work either. They all core dump.
> How do I get a "Backtrace" or run tsql under gdb?
> 
> Cheers
> Vince
> 
> 
> 
> 
> ________________________________
> From: James K.. Lowden <jklowden AT freetds.org>
> To: FreeTDS Development Group <freetds AT lists.ibiblio.org>
> Sent: Tuesday, November 25, 2008 3:02:39 PM
> Subject: Re: [freetds] Need some help connectiing to MSSQL with tsql
> 
> Vince ODea wrote:
> >  
> > # TDSVER=7.0 /usr/local/freetds/bin/tsql -H X.X.X.X  -p 20482  -U User
> > # -P Pass
> > locale is "C C C C C C"
> > locale charset is "roman8"
> > Memory fault(coredump)
> 
> Please try to get a backtrace either from the .core file or by running
> tsql under gdb, to discover the function that failed.  It shouldn't be
> possible to engender a memory fault under any circumstances.  
> 
> The problem might lie in tsql itself.  Not all libtds functions check
> their inputs, because that's considered the responsibility of the API
> layer.  You might want to try one of the other tools: bsqldb, fisql,
> freebcp, and see how they behave.  
> 
> --jkl