** Also affects: linux (Ubuntu Groovy)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Groovy)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Groovy)
Status: New => Triaged
** Package changed: linux (Ubuntu) => linux-riscv (Ubuntu)
** Changed in: linux-riscv (Ubuntu Groovy)
Status: Triaged => Fix Committed
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https://bugs.launchpad.net/bugs/1917433
Title:
riscv: revert SiFive Unleashed CPUFreq
Status in linux-riscv package in Ubuntu:
Incomplete
Status in linux-riscv source package in Groovy:
Fix Committed
Bug description:
== SRU Justifcation Groovy/RISCV ==
The SiFive Unleashed board with the current Ubuntu cpufreq default
config can hang on boot with CPU freq enabled with the latest device
tree settings. It is known that the cpufreq can be problematic so the
recommended way forward is to currently revert the cpufreq enablement
commit
commit 3949df6ecdca04339bc8a3925c2ba7f881cf82b1
Author: David Abdurachmanov <david.abdurachma...@sifive.com>
Date: Tue Jan 28 02:55:56 2020 -0800
SiFive Unleashed CPUFreq
== The fix(es) ==
Revert commit "SiFive Unleashed CPUFreq"
== Test Case ==
Boot with the latest DT. It should now boot. Boot without the latest
DT, it should also boot.
== Where problems could occur ==
1. Users expecting CPU freq scaling now don't have this working
option. This is deemed to be acceptable as without the fix their
systems are likely to be unbootable with the updated DT.
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