mayapy crashing when done

[Erik Johansson-Evegård]

Hi People

Some of our artists are having issues with mayapy crashing after it is done with the script.

maya encountered a fatal error Signal: 11 (Unknown Signal)
Stack trace:
/lib64/libc.so.6() [0x344b832900]
/usr/autodesk/maya2014-x64/bin/../lib/libpython2.7.so.1.0(+0x10e1b3) [0x7fcf7ac3e1b3]
PyGILState_Ensure
TpythonLock::initLock(TpythonLock::TpythonLockingInfo)
TpythonObjectWithLock<TpythonLock>::~TpythonObjectWithLock()
TscriptAction::~TscriptAction()
std::tr1::unordered_map<std::string, TprepareRenderCmd::RegistryEntry, std::tr1::hash<std::string>, std::equal_to<std::string>, std::allocator<std::pair<std::string const, TprepareRenderCmd::RegistryEntry> >, false>::~unordered_map()
exit
__libc_start_main
/usr/autodesk/maya2014-x64/bin/python-bin() [0x400619]

Anyone got some idea on where to start digging?

Cheers,

Erik

[Marcus Ottosson]

Hi Erik,

Could you provide a minimal example which reproduces this error?

Best,

Marcus

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[Erik Johansson-Evegård]

Sure.

It can be something as simple as:

test.py

import maya.standalone
maya.standalone.initialize()
import maya.cmds as mc
mc.file(options.filename, o=True)
mc.quit(force=True)

 

mayapy test.py

Have found some xgen errors in the logs for the people where it don't work so gonna look further into that. Still feels weird that it should crash because of that when the scene dont contain any xgen stuff.

Cheers,

Erik

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[Justin Israel]

Maybe it is the force quit using the Maya command. Its possible that it is doing some faulty shutdown logic when it is not running in the GUI.
Do you get the error if you just exit with sys.exit()?

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[Erik Johansson-Evegård]

Same error with sys.quit() and just not doing anything at all.

Good news tho. It is when xgen is loaded it crashes. Guess that is one to pass along to autodesk.

Cheers,

Erik

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[Colas Fiszman]

usually i'm doing running that at the end of my mayapy script to avoid any crashing or hanging

cmds.file(new=True, force=True)

os._exit(0)

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[Justin Israel]

I actually just encountered a similar situation with a Qt app, where at shutdown randomly it would seg fault because of some mismatches in the garbage collection vs what Qt had already destroyed. I've added the os._exit() approach to my shutdown routine to avoid problem. 

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[Erik Johansson-Evegård]

Think I forgot to say thanks for:

cmds.file(new=True, force=True)

os._exit(0)

Works great. No more crazy errors.

Cheers,

Erik

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