Ubuntu
linux package

  1. Bug #1690085
  2. Comment #352

Comment 352 for bug 1690085

Revision history for this message
In , kernel (kernel-linux-kernel-bugs) wrote :

(In reply to Chris Hall from comment #217)
> (In reply to Klaus Mueller from comment #214)
> > (In reply to Chris Hall from comment #212)
> > > I admit that the PSU I was using was (a) old and (b) cheap. I have now
> > > replaced that by a brand-new, more efficient PSU which supports 0A loads
> > > across all voltages. I am running that with C6 enabled, and await
> > > developments.

> > Could you please tell which PSU you're now testing?

> It's a "be quiet! Straight Power 11", Model E11-450W (BN280).

I have been running with the new PSU with C6 enabled (package and core), and with CONFIG_RCU_NOCB_CPU=y and rcu_nocbs=0-15, for 10 days.

This morning the machine was frozen. So, new PSU has not cured the problem.

With the old PSU the machine was freezing every 2-3 days. So, things have improved... which could be the PSU, but the kernel (now 4.15.10) and other software has been updated and the idle load on the machine depends on how frequently somebody tries to ssh in :-(

The BIOS for my ASUS Prime X370-PRO does not have the magic "Power Supply Idle Control". I will now try zenstates.py --c6-package-disable".

FWIW: I last wrote to AMD "TECH.SUPPORT" on 14-Mar... so far, no reply.