From bc8c16173e79b830e1fb430fc0169dd04b8bbee8 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 14 Jul 2015 14:26:34 +0200 Subject: [PATCH 225/347] panic: skip get_random_bytes for RT_FULL in init_oops_id Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz Disable on -RT. If this is invoked from irq-context we will have problems to acquire the sleeping lock. Signed-off-by: Thomas Gleixner --- kernel/panic.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/panic.c b/kernel/panic.c index 8138a676fb7d..fa114be5c30f 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -480,9 +480,11 @@ static u64 oops_id; static int init_oops_id(void) { +#ifndef CONFIG_PREEMPT_RT_FULL if (!oops_id) get_random_bytes(&oops_id, sizeof(oops_id)); else +#endif oops_id++; return 0; -- 2.36.1