From: Dmitry Osipenko digetx@gmail.com

[ Upstream commit 7db688e99c0f770ae73e0f1f3fb67f9b64266445 ]

There is a quite huge "uncorrectable error in header" flood in KMSG on a clean system boot since there is no pstore buffer saved in RAM. Let's silence the redundant noisy messages by rate-limiting the printk message. Now there are maximum 10 messages printed repeatedly instead of 35+.

Signed-off-by: Dmitry Osipenko digetx@gmail.com Signed-off-by: Kees Cook keescook@chromium.org Link: https://lore.kernel.org/r/20210302095850.30894-1-digetx@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/pstore/ram_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c index 679d75a864d0..40bdf7d85a05 100644 --- a/fs/pstore/ram_core.c +++ b/fs/pstore/ram_core.c @@ -236,7 +236,7 @@ static int persistent_ram_init_ecc(struct persistent_ram_zone *prz, pr_info("error in header, %d\n", numerr); prz->corrected_bytes += numerr; } else if (numerr < 0) { - pr_info("uncorrectable error in header\n"); + pr_info_ratelimited("uncorrectable error in header\n"); prz->bad_blocks++; }