RE: [PATCH] x86, signals: add missing signal_compat code for x86 features

[Luck, Tony]

> Tony / Borislav, do we have tests for the machine check code that could
> have caught this?

If I had built one of my recovery test programs as a 32-byte binary instead of native 64-bit I might have noticed (I only print the lsb field ... which would have been garbage on the stack, maybe I'd have spotted a silly value).

-Tony