panic shortly after mount root
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	brooks
	Oct 14 2020, 5:59 PM

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panic shortly after mount root
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	panic: recursive fpu_kern_enter while in PCB_FPUNOSAVE state
	cpuid = 26
	time = 1602697522
	KDB: stack backtrace:
	db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xffffffff827848a0
	vpanic() at vpanic+0x182/frame 0xffffffff827848f0
	panic() at panic+0x43/frame 0xffffffff82784950
	fpu_kern_enter() at fpu_kern_enter+0x231/frame 0xffffffff82784980
	fletcher_4_sse2_native() at fletcher_4_sse2_native+0xd2/frame 0xffffffff827849b0
	fletcher_4_native() at fletcher_4_native+0xeb/frame 0xffffffff82784ba0
	fletcher_4_benchmark_impl() at fletcher_4_benchmark_impl+0xe0/frame 0xffffffff82784c40
	fletcher_4_init() at fletcher_4_init+0x1a7/frame 0xffffffff82784c60
	mi_startup() at mi_startup+0xec/frame 0xffffffff82784cb0
	btext() at btext+0x2c
	KDB: enter: panic
	[ thread pid 0 tid 100000 ]
	Stopped at kdb_enter+0x37: movq $0,0x10ad516(%rip)

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