CRASH w/ user dictionaries

[menno (Menno Deij - van Rijswijk)]

It seems related to this

Std::__non_rtti_object unhandled exception followed by crash

Recently I have been experiencing intermittent crashes of Rhino while running one of our commands for a specific case. When debugging in .NET, I get an uncatchable SEHException with error code -2147467259, which is 0xFFFFFFFF80004005. Looked this up, but no more information than E_FAIL/Unspecified. When debugging in the Rhino debug version, the error also occurs, but Rhino does not crash. Instead I get the callstack and message about std::__non_rtti_object exception (see below). It seems that …

I suspected, and still do, a timing/threading issue during .NET garbage collection.