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Commit ebef7465 authored by Will Deacon's avatar Will Deacon
Browse files

arm64: smp: Treat unknown boot failures as being 'stuck in kernel' 



When we fail to bring a secondary CPU online and it fails in an unknown
state, we should assume the worst and increment 'cpus_stuck_in_kernel'
so that things like kexec() are disabled.

Reviewed-by: default avatarMark Rutland <mark.rutland@arm.com>
Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 5b1cfe3a

arch/arm64/kernel/smp.c

+1 −0
Original line number Diff line number Diff line
@@ -147,6 +147,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle) 
		default:

			pr_err("CPU%u: failed in unknown state : 0x%lx\n",

					cpu, status);

			cpus_stuck_in_kernel++;

			break;

		case CPU_KILL_ME:

			if (!op_cpu_kill(cpu)) {