Re: [RFC PATCH] x86, mce: change the mce notifier to 'blocking' from 'atomic'

[Borislav Petkov]

On Wed, Apr 12, 2017 at 01:59:03PM -0600, Vishal Verma wrote:
> I don't think we can do anything about the panic path errors.

Then the fix should be a lot easier:

---
diff --git a/drivers/acpi/nfit/mce.c b/drivers/acpi/nfit/mce.c
index 3ba1c3472cf9..44c092ec2ac9 100644
--- a/drivers/acpi/nfit/mce.c
+++ b/drivers/acpi/nfit/mce.c
@@ -25,6 +25,9 @@ static int nfit_handle_mce(struct notifier_block *nb, unsigned long val,
 	struct acpi_nfit_desc *acpi_desc;
 	struct nfit_spa *nfit_spa;
 
+	if (in_atomic())
+		return NOTIFY_DONE;
+
 	/* We only care about memory errors */
 	if (!(mce->status & MCACOD))
 		return NOTIFY_DONE;


-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix ImendÃrffer, Jane Smithard, Graham Norton, HRB 21284 (AG NÃrnberg)
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