From: Dmitry Osipenko <digetx@gmail.com> stable inclusion from stable-5.10 category: feature commit:7db688e99c0f770ae73e0f1f3fb67f9b64266445 issue: #I4919J -------------------------------- 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 (cherry picked from commit 7db688e99c0f770ae73e0f1f3fb67f9b64266445) Signed-off-by: roger <kongzhengrong@huawei.com> --- 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 b5cd09ed2212..66fadf2475b2 100644 --- a/fs/pstore/ram_core.c +++ b/fs/pstore/ram_core.c @@ -245,7 +245,7 @@ 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++; } -- 2.17.1