powerpc: Machine check interrupt is a non-maskable interrupt

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Use nmi_enter similarly to system reset interrupts. This uses NMI
printk NMI buffers and turns off various debugging facilities that
helps avoid tripping on ourselves or other CPUs.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Nicholas Piggin 2017-07-19 16:59:12 +10:00 • committed by Michael Ellerman

parent 6fcd6baa90

commit b96672dd84

1 changed files with 6 additions and 3 deletions

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arch/powerpc/kernel/traps.c

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