FreeTDS Development Group

["Lowden, James K" <LowdenJK AT bernstein.com>]

> From: freetds-bounces AT lists.ibiblio.org
> [mailto:freetds-bounces AT lists.ibiblio.org]On Behalf Of 
> Thompson, Bill D
> Sent: June 17, 2004 8:25 AM
> 
> James,
> 
> I *think* we get stack traces on old versions of Sybase, 
> regardless of the
> TDS version....
> 
> I remember our DBA's researching it and telling me that 
> Sybase admitted it
> as a bug which was fixed in subsequent sybase versions

Hmmm.  Well, I know I run 11.0.3 from time to time on Linux, using FreeTDS, 
of course.  I never crashed it, although I don't remember if I used 4.2 or 
not (probably I used 5.0).  

It's hard to see how we could tickle any bug of theirs if we reproduce their 
datastream.  :-)

--jkl


> > -----Original Message-----
> > From:       James K. Lowden [SMTP:jklowden AT schemamania.org]
> > Sent:       17 June 2004 13:00
> > To: TDS Development Group
> > Subject:    [freetds] Sybase 4.2 crash
> > 
> > > SQL Server/11.0.3.3/P/RS6000/AIX4.1/SWR 8297 ESD 4/OPT/Fri Mar 12
> > > 00:33:51 PST 1999
> > 
> > I have just learned about another example of crashing a 
> Sybase server with
> > FreeTDS.  Like every such case, it used TDS 4.2.  
> Unusually, the server
> > was not 12.5 or something; it was 11.0.3, as above.  
> > 
> > I think we should do one of these things with TDS 4.2:
> > 
> > 1.  Disable it.  
> > 2.  Call tds_client_msg() with a warning whenever it's enabled.  
> > 3.  Fix it. 
> > 
> > The only reason I can think of to use TDS 4.2 is with 
> Microsoft servers
> > prior to SQL Server 7.  *Maybe* it works with those 
> servers, but that
> > seems unlikely to me, because such servers are so rare nowadays.  It
> > hasn't been sold since, what, 1998?  
> > 
> > Great harm comes from crashing a server: to the poor 
> programmer at the
> > hands of his admin and his manager, to the project's 
> reputation, and even
> > to free software generally.  Never mind, potentially at 
> least, to the
> > data.  
> > 
> > If anyone reading this message would be adversely affected 
> if the next
> > release of FreeTDS dropped support for TDS 4.2, please say 
> so.  If no
> > one's willing to fix it, I think it should go.  
> > 
> > Thanks.  
> > 
> > --jkl
> > _______________________________________________
> > FreeTDS mailing list
> > FreeTDS AT lists.ibiblio.org
> > http://lists.ibiblio.org/mailman/listinfo/freetds
> 
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