From c3ce683225b678190d7c42bd8bc695ad74595ac8 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 14 Jul 2015 14:26:34 +0200 Subject: [PATCH 226/264] 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-4.19.37-rt19.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 6a6df23acd1a..8f0a896e8428 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -479,9 +479,11 @@ 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; -- 2.20.1