After /dev/mcelog character device deprecated by commit 5de97c9f6d85
("x86/mce: Factor out and deprecate the /dev/mcelog driver"), the
serialized hardware error log, a.k.a MCE record, of previous boot in
persistent storage is not collected via APEI ERST.
Emit the mce_record tracepoint so that it can consumed by the new
generation rasdaemon.
Signed-off-by: Shuai Xue <xueshuai@xxxxxxxxxxxxxxxxx>
---
drivers/acpi/apei/erst.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index 528ac5eb4871..82f57aaf89ad 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -26,6 +26,10 @@
#include <linux/vmalloc.h>
#include <linux/mm.h> /* kvfree() */
#include <acpi/apei.h>
+#ifdef CONFIG_X86_MCE
+/* only define CREATE_TRACE_POINTS once */
+#include <trace/events/mce.h>
+#endif
#include "apei-internal.h"
@@ -1063,8 +1067,12 @@ static ssize_t erst_reader(struct pstore_record *record)
record->compressed = true;
} else if (guid_equal(&rcd->sec_hdr.section_type, &CPER_SECTION_TYPE_DMESG))
record->type = PSTORE_TYPE_DMESG;
- else if (guid_equal(&rcd->sec_hdr.section_type, &CPER_SECTION_TYPE_MCE))
+ else if (guid_equal(&rcd->sec_hdr.section_type, &CPER_SECTION_TYPE_MCE)) {
+#ifdef CONFIG_X86_MCE
+ trace_mce_record((struct mce *)rcd->data);
+#endif
record->type = PSTORE_TYPE_MCE;
+ }
else
record->type = PSTORE_TYPE_MAX;
--
2.41.0
