Re: [PATCH v2 0/2] Quieten softlockup detector on virtualised kernels

[Andrew Morton]

On Mon, 02 Feb 2015 15:58:38 +1100 Cyril Bur <cyrilbur@xxxxxxxxx> wrote:

> On Fri, 2015-01-09 at 14:34 +1100, Cyril Bur wrote:
> > When the hypervisor pauses a virtualised kernel the kernel will observe a jump
> > in timebase, this can cause spurious messages from the softlockup detector.
> > 
> > Whilst these messages are harmless, they are accompanied with a stack trace
> > which causes undue concern and more problematically the stack trace in the
> > guest has nothing to do with the observed problem and can only be misleading.
> > 
> > Futhermore, on POWER8 this is completely avoidable with the introduction of
> > the Virtual Time Base (VTB) register.
> > 

(Top-posting repaired.  Please don't).

> Could you please pick these patches up through your tree?

I shall.  There were quite a few review comments last time and I *think*
they've been addressed(?).  I'll cc the involved parties on the commits
- please check?

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