Commit 56188832 authored Jul 25, 2017 by Helge Deller

parisc: Suspend lockup detectors before system halt



Some machines can't power off the machine, so disable the lockup detectors to
avoid this watchdog BUG to show up every few seconds:
watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [systemd-shutdow:1]

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 4.9+

parent c46bafc4

arch/parisc/kernel/process.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -53,6 +53,7 @@
		#include <linux/uaccess.h>
		#include <linux/rcupdate.h>
		#include <linux/random.h>
		#include <linux/nmi.h>

		#include <asm/io.h>
		#include <asm/asm-offsets.h>
		@@ -145,6 +146,7 @@ void machine_power_off(void)

		/* prevent soft lockup/stalled CPU messages for endless loop. */
		rcu_sysrq_start();
		lockup_detector_suspend();
		for (;;);
		}

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