From 2c8176385a4f62b536303912ba508b9dc7931fad Mon Sep 17 00:00:00 2001 From: Michel Stam Date: Thu, 2 Oct 2014 11:56:21 +0000 Subject: [PATCH] Reboot busybox style via procd It has been observed that, very rarely, the system does not reboot when procd enters the shutdown state. Busybox seems to have an obscure fix in its shutdown, where the parent (procd) process is put in an infinite loop, and a special child is executed to execute reboot(). This may very well be the cause. Signed-off-by: Michel Stam --- state.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/state.c b/state.c index b941634..c3d2303 100644 --- a/state.c +++ b/state.c @@ -86,7 +86,20 @@ static void state_enter(void) sync(); sleep(1); LOG("- reboot -\n"); - reboot(reboot_event); + + /* Allow time for last message to reach serial console, etc */ + sleep(1); + + /* We have to fork here, since the kernel calls do_exit(EXIT_SUCCESS) + * in linux/kernel/sys.c, which can cause the machine to panic when + * the init process exits... */ + if (!vfork( )) { /* child */ + reboot(reboot_event); + _exit(EXIT_SUCCESS); + } + + while (1) + sleep(1); break; default: -- 2.25.1