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| author | Lenny Szubowicz <lszubowi@redhat.com> | 2018-12-19 11:50:52 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-12 19:46:07 +0100 |
| commit | 74a65f50b9edd3dbd59614df6b7726ca49ff7808 (patch) | |
| tree | 39e780ebe839fe55509fc9464b7754d0450f46f7 /drivers/acpi/apei | |
| parent | 71d357aa1cda88994f11a98c8262f9103c304691 (diff) | |
| download | linux-rt-74a65f50b9edd3dbd59614df6b7726ca49ff7808.tar.gz | |
ACPI/APEI: Clear GHES block_status before panic()
[ Upstream commit 98cff8b23ed1c763a029ee81ea300df0d153d07d ]
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 <lszubowi@redhat.com>
Signed-off-by: David Arcari <darcari@redhat.com>
Tested-by: Tyler Baicar <baicar.tyler@gmail.com>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/acpi/apei')
| -rw-r--r-- | drivers/acpi/apei/ghes.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index f14695e744d0..5889f6407fea 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -675,6 +675,8 @@ 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; |