Regression in westmere MCA initialization
Booting on a Westmere system, I was greeted with error messages about MCA support. I suspect this is a regression introduced by 10277. The problem is that the APIC ID space isn't uniform, which the changes were somewhat relying on. Instead we need to use the number of required bits to cover the space as was previously used.
Updated by Electric Monk over 3 years ago
- Status changed from New to Closed
commit d6517bbd3d5d20a36c32ac87627207632e5934aa Author: Robert Mustacchi <email@example.com> Date: 2019-03-12T15:31:31.000Z 10514 10277 broke older Intel CPUs 10513 Regression in westmere MCA initialization Reviewed by: Jerry Jelinek <firstname.lastname@example.org> Reviewed by: John Levon <email@example.com> Reviewed by: Peter Tribble <firstname.lastname@example.org> Approved by: Dan McDonald <email@example.com>