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arm64: cpu_switch: don't zero out pcb_onfault
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Authored by kevans on Mar 26 2023, 4:46 PM.
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Details

Summary

Previously this would zero out x18 in the pcb, now it's attacking the
innocent pcb_onfault -- drop it entirely.

This technically fixes
e605b87a9e7 ("Save only callee-saved registers in pcb"), but it's
harmless until the below commit trims down pcb_x.

Reported by: mmel
Fixes: 1c1f31a5e517 ("Remove unused registes from the arm pcb")

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rG FreeBSD src repository
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