Hello,
Running Maya 2018 update 3, MtoA 3.0.1 and Arnold 5.1.1 on Centos 7.4
Import attached obj, open "render selection to texture", tick "all udims" and hit Render
crashmesh.zip
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* Arnold 5.1.1.0 [e338d869] linux clang-5.0.0 oiio-1.7.17 osl-1.9.0 vdb-4.0.0 clm-1.0.3.513 rlm-12.2.2 2018/05/22 13:15:20
* CRASHED in CameraCreateRay at 00:00:00, pixel (448, 31)
* signal caught: SIGSEGV -- Invalid memory reference (invalid permissions for mapped object)
*
* backtrace:
* 0 0x00007f28039e5ac2 [libai.so ]
* 1 0x00007f288d0e85df [libpthread.so.0] _L_unlock_13 [funlockfile.c :?]
>> 2 0x00007f2797339253 [mtoa_shaders.so] CameraCreateRay(AtNode const*, AtCameraInput const&, AtCameraOutput&, unsigned short) [CameraUvMapper.cpp:?]
* 3 0x00007f2797339253 [mtoa_shaders.so] [CameraUvMapper.cpp:?]
* 4 0x00007f280393ccdb [libai.so ]
* 5 0x00007f280392ee0a [libai.so ]
* 6 0x00007f280393b24b [libai.so ]
* 7 0x00007f28039e8fed [libai.so ]
* 8 0x00007f288d0e0e24 [libpthread.so.0] [pthread_create.c :?]
* 9 0x00007f288ce0e34c [libc.so.6 ] clone
*
* loaded modules:
* 0x00007f28030fb000 libai.so
* 0x00007f288d0d9000 libpthread.so.0
* 0x00007f27972fb000 mtoa_shaders.so
* 0x00007f288cd16000 libc.so.6
*
* memory: VM 135959 MB, RSS 1020 MB, 2 page faults
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