diff --git a/drivers/acpi/apei/bert.c b/drivers/acpi/apei/bert.c index a05b5c0cf181..e22f3d89b84b 100644 --- a/drivers/acpi/apei/bert.c +++ b/drivers/acpi/apei/bert.c @@ -31,6 +31,7 @@ #undef pr_fmt #define pr_fmt(fmt) "BERT: " fmt +#define ACPI_BERT_PRINT_MAX_LEN 1024 static int bert_disable; @@ -59,8 +60,11 @@ static void __init bert_print_all(struct acpi_bert_region *region, } pr_info_once("Error records from previous boot:\n"); - - cper_estatus_print(KERN_INFO HW_ERR, estatus); + if (region_len < ACPI_BERT_PRINT_MAX_LEN) + cper_estatus_print(KERN_INFO HW_ERR, estatus); + else + pr_info_once("Max print length exceeded, table data is available at:\n" + "/sys/firmware/acpi/tables/data/BERT"); /* * Because the boot error source is "one-time polled" type,