[freetds] Sybase 4.2 crash

Lowden, James K LowdenJK at bernstein.com
Thu Jun 17 09:04:08 EDT 2004


> 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
> 
> ==============================================================
> ================
> 
> If you are not an intended recipient of this e-mail, please notify
> the sender, delete it and do not read, act upon, print, disclose,
> copy, retain or redistribute it.
> 
> Click here for important additional terms relating to this e-mail.
>      <http://www.ml.com/email_terms/>
> 
> ==============================================================
> ================
> 
> _______________________________________________
> FreeTDS mailing list
> FreeTDS at lists.ibiblio.org
> http://lists.ibiblio.org/mailman/listinfo/freetds
> 
> 

-----------------------------------------
The information contained in this transmission may contain privileged and confidential information and is intended only for the use of the person(s) named above. If you are not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, any review, dissemination, distribution or duplication of this communication is strictly prohibited. If you are not the intended recipient, please contact the sender immediately by reply e-mail and destroy all copies of the original message. Please note that we do not accept account orders and/or instructions by e-mail, and therefore will not be responsible for carrying out such orders and/or instructions.
If you, as the intended recipient of this message, the purpose of which is to inform and update our clients, prospects and consultants of developments relating to our services and products, would not like to receive further e-mail correspondence from the sender, please "reply" to the sender indicating your wishes.  In the U.S.: 1345 Avenue of the Americas, New York, NY 10105.





More information about the FreeTDS mailing list