RE: [PATCH] ACPI / sysfs: Extend ACPI sysfs to provide access to boot error region

From: Luck, Tony
Date: Thu Aug 17 2017 - 22:12:59 EST


> Should this not also have a capability check. Assuming file permissions
> are sufficient for grabbing a chunk of system memory holding error
> info doesn't seem too scary but it's at odds with a lot of other cases ?

At least one of those other cases (pstore) added a capability check and now regret
it. There's a thread on reverting it. Look for:

Revert "pstore: Honor dmesg_restrict sysctl on dmesg dumps"

-Tony