[fix] Plugin Crash On Linux 64bits With Maya 8.5 Sp1 (2)

[zubin]

I have a strange crash with a custom MPxNode in maya on Linux 64bit.
This plugin works find on win 32, win 64 and linux 32 but crashes on Linux 64.

I have isolate the probleme, but i don't know why this part of code crash on Linux 64 :
Here is the crashing part of the code :

CODE
  MDataHandle filePathHnd = data.inputValue( filePath );
  MDataHandle localFilePathHnd = data.inputValue( localFilePath );
  MDataHandle useLocalFileHnd = data.inputValue( useLocalFile );

  // reference file path
  MString rFP = filePathHnd.asString();
  // local reference file path
  MString lRFP = localFilePathHnd.asString();
  // use local File Flag
  bool uLF = useLocalFileHnd.asBool();

I also found a solution for this example, which is to retrieve my MString datas one by one, as below :

CODE
  // reference file path
  MDataHandle filePathHnd = data.inputValue( filePath );
  MString rFP = filePathHnd.asString();
  // local reference file path
  MDataHandle localFilePathHnd = data.inputValue( localFilePath );
  MString lRFP = localFilePathHnd.asString();
  // use local File Flag
  MDataHandle useLocalFileHnd = data.inputValue( useLocalFile );
  bool uLF = useLocalFileHnd.asBool();

But this solution, despite preventing data access crash, is not acceptable as I have to deal with more complex attributs such as arrays.
Not to mention the fact that I'm not sure Maya is still stable after using this workaround...

Has someone ever met this problem ? I saw a post about that somewhere on the web but the poster just mentionned he found the solution himself, by playing with gcc flags, and did not reveal it...

Regards,

/*************************************/

command port delivery an error :

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 46912682359376 (LWP 8938)]
0x00002aaaad82b592 in TdataBlock::hasPlugCache ()
from /usr/autodesk/maya8.5-x64/lib/libDependEngine.so

/ ***********************************/

Configuration :

Linux 64 :
CentOS 5.0 Base on Red Hat Enterprise Linux 5.0
Intel

[zubin]

Now [Fix] with autodesk forum

 Re: plugin crash on Linux 64bits with Maya 8.5 SP1

this is usually due to not using the proper compiler defines for 64bit builds. up until 8.5SP1 64bit builds needed the Bits64_ define set, check the buildconfig file supplied in the devkit/plug-ins directory to see what options/defines are needed.

Thought this Bits64_ setting was "fixed" internally with 8.5 SP1, but could be wrong.