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Bug #82

closed

CAR fails on LGA775 pentium 4-like CPUs

Added by Arthur Heymans over 7 years ago. Updated over 7 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
Kyösti Mälkki
Category:
-
Target version:
-
Start date:
10/22/2016
Due date:
% Done:

90%

Estimated time:
Affected versions:
Needs backport to:
Affected hardware:
Affected OS:

Description

CAR (cache as ram) does not work on LGA775 pentium 4-like CPUs.
CPUs tested:

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 #1

Updated by Arthur Heymans over 7 years ago

(browser did funny stuff)
CPUs tested:
pentium 4 630
celeron d 347

on latest git: 8e6417413

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 #2

Updated by Kyösti Mälkki over 7 years ago

  • Status changed from New to Resolved
  • Assignee set to Kyösti Mälkki
  • % Done changed from 0 to 90

Not a cache-as-ram issue.

P4 NetBurst does not implement MSR 0xcd used in udelay() with UDELAY_LAPIC=y. Also the board this was tested on required super-io GPIOs to replicate BSEL lines between CPU and MCH.

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