From: Lenny Szubowicz <lszub...@redhat.com>
In __ghes_panic() clear the block status in the APEI generic
error status block for that generic hardware error source before
calling panic() to prevent a second panic() in the crash kernel
for exactly the same fatal error.
Otherwise ghes_probe(), running in the crash kernel, would see
an unhandled error in the APEI generic error status block and
panic again, thereby precluding any crash dump.
Signed-off-by: Lenny Szubowicz <lszub...@redhat.com>
Signed-off-by: David Arcari <darc...@redhat.com>
Cc: Rafael J. Wysocki <r...@rjwysocki.net>
Cc: Len Brown <l...@kernel.org>
Cc: Tony Luck <tony.l...@intel.com>
Cc: Borislav Petkov <b...@alien8.de>
Cc: "Eric W. Biederman" <ebied...@xmission.com>
Cc: Alexandru Gagniuc <mr.nuke...@gmail.com>
Cc: linux-kernel@vger.kernel.org
---
drivers/acpi/apei/ghes.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 02c6fd9..f008ba7 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -691,6 +691,8 @@ static void __ghes_panic(struct ghes *ghes)
{
__ghes_print_estatus(KERN_EMERG, ghes->generic, ghes->estatus);
+ ghes_clear_estatus(ghes);
+
/* reboot to log the error! */
if (!panic_timeout)
panic_timeout = ghes_panic_timeout;
--
1.8.3.1
