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authorHelge Deller <deller@gmx.de>2017-03-29 08:25:30 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-04-08 09:30:34 +0200
commit99e354a59ac5e7920166e68903b4ad031ef933e3 (patch)
tree91bc6d9c6af10165bbf2a934e22ec0f7571771cf /arch
parent09b931fcb87c8aad178475a7db1d4bfc939f7faa (diff)
parisc: Avoid stalled CPU warnings after system shutdown
commit 476e75a44b56038bee9207242d4bc718f6b4de06 upstream. Commit 73580dac7618 ("parisc: Fix system shutdown halt") introduced an endless loop for systems which don't provide a software power off function. But the soft lockup detector will detect this and report stalled CPUs after some time. Avoid those unwanted warnings by disabling the soft lockup detector. Fixes: 73580dac7618 ("parisc: Fix system shutdown halt") Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/parisc/kernel/process.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index e81afc378850..e7ffde2758fc 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -140,6 +140,8 @@ void machine_power_off(void)
printk(KERN_EMERG "System shut down completed.\n"
"Please power this system off now.");
+ /* prevent soft lockup/stalled CPU messages for endless loop. */
+ rcu_sysrq_start();
for (;;);
}