FS#56521 - [grub] GRUB2 will fail to boot on newer Intel Silicon

Attached to Project: Arch Linux
Opened by Mario (superm1) - Thursday, 30 November 2017, 15:31 GMT
Last edited by Christian Hesse (eworm) - Friday, 01 December 2017, 07:59 GMT
Task Type Bug Report
Category Upstream Bugs
Status Closed
Assigned To Ronald van Haren (pressh)
Christian Hesse (eworm)
Architecture x86_64
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
Some newer Intel silicon is configured such that the legacy(8254) timer function is disabled.
"8254 clock gating" is provided to disable 8254 timer to get rid of legacy and save power. The platforms with the firmware and silicon combination which disables the 8254 timer will fail to boot up and block on grub2 which uses the 8254 timer to calibrate the TSC.

The impact will be the system hanging at the bootloader.


Steps to reproduce:
1) Boot affected system

The patch which fixed this issue has included in the upstream git repository by Intel:
http://git.savannah.gnu.org/cgit/grub.git/commit/?id=446794de8da4329ea532cbee4ca877bcafd0e534

Please consider to bring this patch into Arch.
This task depends upon

Closed by  Christian Hesse (eworm)
Friday, 01 December 2017, 07:59 GMT
Reason for closing:  Fixed
Additional comments about closing:  grub-2:2.02-4

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