[Issue 16641] Infinite loop on InvalidMemoryOperationError in __dmd_personality_v0

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16641

Nemanja Boric <4burgos at gmail.com> changed:

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                 CC|                            |4burgos at gmail.com

--- Comment #6 from Nemanja Boric <4burgos at gmail.com> ---
I've experienced issue similar to this while working on:
https://github.com/dlang/druntime/pull/1872

The trick is that chaining exceptions doesn't work with
`InvalidMemoryOperationError` or similar errors that are statically allocated.
So, if you're executing your `close()` during stack unwinding due to
`AssertError`, say, (like in `scope(exit)`) and that method throws another
Error (invalid GC operation), that will reuse the same statically allocated
memory, chaining `ThrowableInstance.next = &ThrowableInstance`, which will
cause infinite loop in the exception handling.

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