When issuing a "shutdown -h now", the reboot syscall calls kernel_halt()
which shouldn't return, otherwise one gets this panic:
reboot: System halted
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000000
CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 4.16.0-32bit+ #560
Backtrace:
[<1018a694>] show_stack+0x18/0x28
[<106e68a8>] dump_stack+0x80/0x10c
[<101a4df8>] panic+0xfc/0x290
[<101a90b8>] do_exit+0x73c/0x914
[<101c7e38>] SyS_reboot+0x190/0x1d4
[<1017e444>] syscall_exit+0x0/0x14
Fix it by letting machine_halt() call machine_power_off() which doesn't
return.
Signed-off-by: Helge Deller <deller@xxxxxx>
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index bbe46571ff96..b931745815e0 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -112,14 +112,6 @@ void machine_restart(char *cmd)
}
-void machine_halt(void)
-{
- /*
- ** The LED/ChassisCodes are updated by the led_halt()
- ** function, called by the reboot notifier chain.
- */
-}
-
void (*chassis_power_off)(void);
/*
@@ -158,6 +150,11 @@ void machine_power_off(void)
void (*pm_power_off)(void);
EXPORT_SYMBOL(pm_power_off);
+void machine_halt(void)
+{
+ machine_power_off();
+}
+
void flush_thread(void)
{
/* Only needs to handle fpu stuff or perf monitors.
--
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