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Bug #33

closed

cbmem utility fails on newer linux kernels "Failed to mmap /dev/mem: Resource temporarily unavailable"

Added by Martin Roth almost 9 years ago. Updated almost 2 years ago.

Status:
Closed
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
02/05/2016
Due date:
% Done:

0%

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

Description

This has been going on for a while. Paul mentioned it here:
https://www.coreboot.org/pipermail/coreboot/2015-September/080383.html

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 #1

Updated by Aaron Durbin almost 9 years ago

This has a little more succinct issue as to what is going on:
https://www.coreboot.org/pipermail/coreboot/2015-October/080568.html

In short, smbios and ACPI memory both live in cbmem. However, the two drivers use 2 different map() attributes covering sub regions within cbmem. The cbmem utility currently assumes a cacheable mapping attribute which is in conflict w/ the persistent uncacheable smbios mapping.

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 #2

Updated by Martin Roth almost 2 years ago

  • Status changed from New to Closed

Closing as fixed.

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