kexec can't give acpi_rsdp parameter to efi boot

Bug #1787596 reported by Thadeu Lima de Souza Cascardo
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
kexec-tools (Ubuntu)
New
Undecided
Unassigned
Trusty
Confirmed
Medium
Thadeu Lima de Souza Cascardo
linux (Ubuntu)
Confirmed
Undecided
Unassigned
Trusty
Confirmed
Low
Thadeu Lima de Souza Cascardo

Bug Description

When doing kexec on trusty, it will look for the xloadflags on the bzImage, but won't find it on trusty kernels. That will break kexec on EFI systems, requiring acpi_rsdp parameter to be given manually.

Tags: cscc
Changed in linux (Ubuntu Trusty):
importance: Undecided → Low
assignee: nobody → Thadeu Lima de Souza Cascardo (cascardo)
status: New → Confirmed
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote : Missing required logs.

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1787596

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
Changed in kexec-tools (Ubuntu Trusty):
importance: Undecided → Medium
assignee: nobody → Thadeu Lima de Souza Cascardo (cascardo)
Revision history for this message
Thadeu Lima de Souza Cascardo (cascardo) wrote :

Just manually giving acpi_rsdp parameter to kexec will make it work, so it should be automatically given despite the xloadflags not being present in bzImage.

Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Changed in kexec-tools (Ubuntu Trusty):
status: New → Confirmed
Revision history for this message
Thadeu Lima de Souza Cascardo (cascardo) wrote :

926172d46038d7610b6b8d84e40db727cefb482d ("efi: Export EFI runtime memory mapping to sysfs") might fix it on the linux side.

Revision history for this message
Thadeu Lima de Souza Cascardo (cascardo) wrote :

Ideally, kexec-tools should be the package fixed, as this allows it to work on older kernels as well.

Brad Figg (brad-figg)
tags: added: cscc
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.