Andreas Kling e576c9e952 Kernel: Clear ESI and EDI on syscall entry ...

Since these are not part of the system call convention, we don't care
what userspace had in there. Might as well scrub it before entering
the kernel.

I would scrub EBP too, but that breaks the comfy kernel-thru-userspace
stack traces we currently get. It can be done with some effort.

2020-01-25 10:34:32 +01:00

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