Re: labCA crashes with bad PV

[Till Straumann <strauman@slac.stanford.edu>]

Dennis Nicklaus wrote:
> When I use an non-existent PV  via labCA in matlab, my matlab session dies.
> e.g.
>  > lcaGet ('garbage')
> hangs for a minute or two, then takes down matlab.
> Hitting control-c during the timeout also crashes matlab.
>
> I'm running matlab 7 under linux.

What's the exact version number (of matlab)?

>  I picked up what looked like the most 
> recent
> labCA (2.0 alpha).
>
> Can  labCA be made to do anything other than hang and crash, like print a
> 'Channel connect timed out' error?

Did you read the Release Notes?

Problems of this kind usually occur due to improper C++ exception
handling, i.e., when the code that implements 'throwing' an exception
doesn't match exception handling.

If the workaround lined out in the ReleaseNotes doesn't work
for you, please check if a trivial mexFunction that
just calls mexErrMsgTxt("Testing error"); works fine or
if it crashes matlab. Then submit a detailed report (log, crash
dump etc.), please.


-- Till


> Thanks,