From: Lenny Szubowicz <[email protected]> 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 <[email protected]> Signed-off-by: David Arcari <[email protected]> Cc: Rafael J. Wysocki <[email protected]> Cc: Len Brown <[email protected]> Cc: Tony Luck <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: "Eric W. Biederman" <[email protected]> Cc: Alexandru Gagniuc <[email protected]> Cc: [email protected] --- 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
