Arnold

[jared.embley]

Hi there

I’m currently wrestling with an issue which I’m not entirely sure is even Arnold related, but I thought I would post in the hope that someone may have seen something like this before and could perhaps point me in the right direction.

We’re rendering maya scenes (2020.4 / Arnold 4.04) from Windows machines to deadline which is mainly made up of linux machines. However when rendering a scene with referenced assets that contain aiImage nodes the scene crashes on the farm. If I import the reference then it’s fine, if I replace all the aiImage nodes with file nodes then it’s also fine.

Has anyone experienced anything like this before?

Thanks

[Stephen.Blair]

MtoA 4.0.4? Wow, that's kinda old.

I was going to say that MtoA replaces file nodes with aiImage automatically, but I don't know if MtoA 4.0.4 did that. I'll have to confirm.

Can you post an Info-level log from an Arnold render that crashes?

[jared.embley]

//crash log file name = /usr/tmp/root.20230322.1555
//cut = 202011110415 /home/S/Maya_2020_DI/build
//host name = x145
//release name = 3.10.0-693.el7.x86_64
//version = #1 SMP Tue Aug 22 21:09:27 UTC 2017
//machine name = x86_64
//current scene = unDisclosed
//directory = /root
//====================================================
//command history (most recent last):
//====================================================

//====================================================
SynColor_2018_0_81::RulePtr::get() const
/usr/autodesk/maya2020/lib/libsynColor.so.2018.0.81(+0x426028) [0x7f214aae3028]
TcolorMgtFileRules::evaluateFilePath(Tstring const&) const
TcolorManagedNodeHelper::colorManage(TdependNode*, Tstring const&, TDGcommand&, bool)
Autodesk::Maya::OpenMaya20200000::MColorManagementNodes::colorManage(Autodesk::Maya::OpenMaya20200000::MObject&, Autodesk::Maya::OpenMaya20200000::MString const&, Autodesk::Maya::OpenMaya20200000::MDGModifier&)
Autodesk::Maya::OpenMaya20200000::MColorManagementUtilities::connectDependencyNodeToColorManagement(Autodesk::Maya::OpenMaya20200000::MObject&)
/usr/autodesk/arnold/maya2020/plug-ins/../bin/libmtoa_api.so(+0xb4d8b) [0x7f2100142d8b]
TpluginNode::createNode()
TdependGraph::createNode(Tstring const&)
TcreateNodeCmd::doIt(TargList&)
TmetaCommand::doCommand(TargList&)
/usr/autodesk/maya2020/lib/libCommandEngine.so(+0x5a4d4) [0x7f215a2844d4]
/usr/autodesk/maya2020/lib/libCommandEngine.so(+0x89bc1) [0x7f215a2b3bc1]
/usr/autodesk/maya2020/lib/libCommandEngine.so(+0x89d91) [0x7f215a2b3d91]
SophiaExecutable::evaluate(void*)
TcommandEngine::executeCommand(SophiaExecutable*)
TmayaAccessor::execute(char const*, int (*)(char*, int, void*), bool, bool)
TmayaAsciiAccessor::reader(TsceneFile&)
TfileTranslator::read(TsceneFile&)
TglobalTranslator::doReadFile(TsceneFile&, bool, bool)
TfileUtil::readFile(TsceneFile*, bool, bool, bool)
TfileReferencer::readReference(TsceneFile*, TnamespaceSwapper*)
TfileReferencer::reloadReference(TsceneFile*, TresolveFileObject, bool, TnamespaceSwapper*, bool)
TfileReferencer::loadChildren(TbaseRefHierNode*)
TglobalTranslator::doReadFile(TsceneFile&, bool, bool)
TfileUtil::readFile(TsceneFile*, bool, bool, bool)
TsceneOperator::openFile(TsceneFile*, bool, bool)
TfileCmd::handleFileOpenFlag(TargDatabase&, TsceneFile*)
TfileCmd::handleFlags(TargDatabase&, TsceneFile*, TnamespaceSwapper*, TgraphDiff*)
TfileCmd::handleFlags(TargDatabase&, Tstring const&)
TfileCmd::doCommand(TargList&)
/usr/autodesk/maya2020/lib/libCommandEngine.so(+0x5a4d4) [0x7f215a2844d4]
/usr/autodesk/maya2020/lib/libCommandEngine.so(+0x89bc1) [0x7f215a2b3bc1]
/usr/autodesk/maya2020/lib/libCommandEngine.so(+0x89d91) [0x7f215a2b3d91]
SophiaExecutable::evaluate(void*)
TcommandEngine::executeCommand(Tstring const&, bool, bool, TmelCmdResult*, unsigned int)
/usr/autodesk/maya2020/bin/maya.bin() [0x414202]
/usr/autodesk/maya2020/bin/maya.bin() [0x40de72]
Tapplication::start()
/usr/autodesk/maya2020/bin/maya.bin() [0x40eed9]
1
//====================================================
//Memory usage:
// 55811.334 Mb Free Memory
// 12805.206 Mb Free Swap
// 219.030 Mb Heap
//====================================================

[Stephen.Blair]

That looks like Maya crashes during scene load, while doing some color management stuff. SynColor can crash on headless machines if there's a problem initializing OGS.

[jared.embley]

It does complain about some missing OpenColorIO configuration files but is that enough to crash Maya?  If that's the case is there a work around to this, like disablinig Color Management or something?