BugSplat Crash: SecondLifeViewer!LLMeshSkinInfo::asLLSD(1724)

[sl-service-account]

BugSplat Crash Group 100023

View Report Group
View Report Details
View Report Attachments

Application: Second Life Project Gltf Mesh Import
Version: 7.1.14.15361077240
Error Code: c0000005 Access violation

Callstack:

Function	File
SecondLifeViewer!LLMeshSkinInfo::asLLSD	C:/a/viewer/viewer/indra/llprimitive/llmodel.cpp(1724)
SecondLifeViewer!LLModel::writeModel	C:/a/viewer/viewer/indra/llprimitive/llmodel.cpp(840)
SecondLifeViewer!LLMeshUploadThread::wholeModelToLLSD	C:/a/viewer/viewer/indra/newview/llmeshrepository.cpp(2732)
SecondLifeViewer!LLMeshUploadThread::requestWholeModelFee	C:/a/viewer/viewer/indra/newview/llmeshrepository.cpp(3150)
SecondLifeViewer!LLThread::threadRun	C:/a/viewer/viewer/indra/llcommon/llthread.cpp(162)
SecondLifeViewer!std::invoke	C:/Program Files/Microsoft Visual Studio/2022/Enterprise/VC/Tools/MSVC/14.43.34808/include/type_traits(1712)
SecondLifeViewer!std::_Invoker_ret::_Call	C:/Program Files/Microsoft Visual Studio/2022/Enterprise/VC/Tools/MSVC/14.43.34808/include/functional(2111)
SecondLifeViewer!std::_Call_binder	C:/Program Files/Microsoft Visual Studio/2022/Enterprise/VC/Tools/MSVC/14.43.34808/include/functional(2121)
SecondLifeViewer!std::_Binder::operator()	C:/Program Files/Microsoft Visual Studio/2022/Enterprise/VC/Tools/MSVC/14.43.34808/include/functional(2175)
SecondLifeViewer!std::invoke	C:/Program Files/Microsoft Visual Studio/2022/Enterprise/VC/Tools/MSVC/14.43.34808/include/type_traits(1696)
SecondLifeViewer!std::thread::_Invoke >,0>	C:/Program Files/Microsoft Visual Studio/2022/Enterprise/VC/Tools/MSVC/14.43.34808/include/thread(61)
ucrtbase!thread_start	-
kernel32!BaseThreadInitThunk	-
ntdll!RtlUserThreadStart	-

[Dan-Linden]

This crash was caused by uploading the dae file Jessicaann Wrigglesworth sent to mailto:gltf@secondlife.com on 6/10/2025. The crash happened after clicking the "Calculate weights & fee" button.

[canny]

This issue has been linked to a Canny post: Upload of rigged mesh crashes viewer 🎉

[akleshchev]

Can not reproduce. Marchcat added safety checks in #4248.

Arguably he should have set an identity matrix, it causes a crash when wearing. Will fix both the new crash and add identity to not crash older viewers.
And this particular model probably should fail upload...

[AtlasLinden]

This model no longer crashes the viewer. It can also be uploaded!
Odd behaviour in the Upload Model floater for this model is that only the Skin Weights checkbox is selected to Display in the preview by default which shows nothing. Checking Edges and unchecking Skin weights then allows you to preview the model.

Passed QA.
Verified on Second Life Project 7.1.14.15976006598 (GLTF Mesh Import) on Win11/MacOS