>From 9ccf10ecd2110ef4176446d2d61f7040e7e2c6d8 Mon Sep 17 00:00:00 2001 From: Paul Menzel Date: Mon, 10 Aug 2020 15:15:36 +0200 Subject: [PATCH] printk: Debug lost message issue Signed-off-by: Paul Menzel --- kernel/printk/printk.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index 9b75f6bfc333..078c1925e570 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1185,6 +1185,9 @@ void __init setup_log_buf(int early) * early, e.g. from setup_arch(), and second - when percpu_areas * are initialised. */ + pr_info("XXX log_buf_len: %u bytes\n", log_buf_len); + free = __LOG_BUF_LEN - log_next_idx; + pr_info("XXX early log buf free: %u(%u%%)\n", free, (free * 100) / __LOG_BUF_LEN); if (!early) set_percpu_data_ready(); -- 2.28.0