Re: [PATCH] x86_64: handle iret faults better

[Andi Kleen]

> This patch makes faults in iret produce the normal signals that would
> result from the same errors when executing some user-mode instruction.
> To accomplish this, I've extended the exception_table mechanism to support
> "special fixups".  Instead of a PC location to jump to, these have a
> function called in the trap handler context and passed the full trap details.

As written earlier I dont like this patch because it is far too complicated.
I would just fake a simple signal in the error handler, all the other
complicated infrastructure seems unnecessary.


Linus, Andrew, please dont apply this patch.

-Andi
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