Re: Screen freezing and Call Stack unavailable

Check out Information APAR II12474.
Are you using the CEEDAYS API and if so, are you
coding it correctly.  In reading this info APAR, I
don't think that is the problem, but its worth a look.

Regards

Pat.

Patricia Garrity
Garrity Systems. 

--- James Viney <James.Viney@xxxxxxxxxx> wrote:

> We are having a problem where some users of our
> in-house system are freezing
> for several minutes.  The 'X' appears in the bottom
> left of the screen and
> remains there until the screens 'unfreeze' and can
> affect many users at any
> time.  The users affected can all be accessing
> different parts of the system
> so trying to work out where the source of the
> problem lies is very
> difficult,  They never timeout and to make it even
> more difficult to trace
> the problem, if I try to view the call stack of one
> of the frozen users, my
> screen then freezes for as long as the user's screen
> is!  Eventually, my
> screen will either return with 'Call stack
> unavailable' or both screens will
> be unfrozen and the call stack is now available.
> 
> Because we don't know if the problem is at file
> level, or which file(s)
> is/are causing the problem is difficult to put a
> trace on anything.  Also it
> can be weeks before the next incident occurs.
> 
> The system is written in RPG (v. old style to RPG
> ILE) and CL.  Synon was
> also used extensively.  Fingers are being pointed at
> programming level
> because users of other systems implemented on the
> same iseries do not have
> this problem.
> 
> Can anyone advise why the Call Stack would be frozen
> and any action I can
> take to find the problem.
> 
> Thanks,
> 
> James
> 
> 
> 
> 
> 
> James Viney
> Senior Analyst/Programmer
> Fortis Insurance Limited
> Fortis House  Tollgate  Eastleigh  Hants  SO53 3YA
> Tel: 02380 313324
> Email: james.viney@xxxxxxxxxx
> Registered Address: Fortis House  Tollgate 
> Eastleigh  Hampshire  SO53 3YA
> Registered Number: 354568 England
> Authorised and regulated by the Financial Services
> Authority
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Patricia Garrity
Garrity Systems, Inc

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