Messages in this thread | | | Date | Tue, 22 May 2018 11:33:36 -0700 | From | "Luck, Tony" <> | Subject | Re: [PATCH v6 1/2] acpi: apei: Rename ghes_severity() to ghes_cper_severity() |
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On Tue, May 22, 2018 at 08:10:47PM +0200, Rafael J. Wysocki wrote: > > PCIe fatal means that the link or the device is broken. > > And that may really mean that the component in question is on fire. > We just don't know.
Components on fire could be the root cause of many errors. If we really believe that is a problem we should power the system off rather than just calling panic() [not just for PCIe errors, but also for machine checks, and perhaps a bunch of other places in the kernel].
True story: I used to work for Stratus Computer on fault tolerant systems. A customer once called in with a "my computer is on fire" report and asked what to do. The support person told them to power it off. Customer asked "Isn't there something else? It's still running just fine".
-Tony
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