@assafmo Before registering the exception handler, has the
alloc::set_alloc_error_hook function been called to set the allocation failure
handler?
```
alloc::set_alloc_error_hook(|layout| {
println!("memory allocation of {} bytes failed", layout.size());
unsafe { std::intrinsics::abort() };
});
```
The default handler for memory allocation failure will set the enclave status
to ENCLAVE_CRASHED, and the enclave will no longer catch exception signals in
this state.
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