[Muscle] Weird problem with PCSC

[Ludovic Rousseau]

2007/11/20, prakash ns <nsratnavel at gmail.com>:
> Hi everyone,
>
> I am using a SCM SDI010 Reader to interact with a JCOP 21 card.
>
> > I have interfaced the USB smartcard reader with my application.
> > Iam using pcsclite-1.2.0 with 2.4.20-8 kernel.
> >  I am able to read and write from the card at low level.
> > I have interfaced with the application but the reader responds to
>  some read or write calls from the application and gives me the problem of
>  insufficient buffer which i am unable to debug.
> >If i change any particular variable, say i declare an integer then
> it works fine.
>
> I dont understand how a declaration of a variable which is not used
> anywhere else in a particular function helps in solving the problem.
> I have tried all versions upto pcsclite-1.4.4.
>
> Please do suggest a solution.

It looks like a memory corruption [1] in your program.

Good luck finding the bug.

[1] http://en.wikipedia.org/wiki/Memory_corruption

-- 
  Dr. Ludovic Rousseau