Re: [BACKPORT PATCH 3.10..3.16] KVM: MIPS: Drop other CPU ASIDs on guest MMU changes

[James Hogan <james.hogan@imgtec.com>]

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Hi Fengguang,

On Thu, Nov 10, 2016 at 07:08:43AM +0100, Greg KH wrote:
> On Wed, Nov 09, 2016 at 10:00:43PM +0000, James Hogan wrote:
> > On Wed, Nov 09, 2016 at 10:22:01PM +0100, Jiri Slaby wrote:
> > > On 11/09/2016, 03:46 PM, James Hogan wrote:
> > > > Unfortunately the original commit went in to v3.12.65 as commit
> > > > 168e5ebbd63e, without fixing up the references to tlb_lo[0/1] to
> > > > tlb_lo0/1 which broke the MIPS KVM build, and I didn't twig that I
> > > > already had a correct backport outstanding (sorry!). That commit should
> > > > be reverted before applying this backport to 3.12.
> > > 
> > > Thanks, reverted and applied. I wonder the builders didn't break given 4
> > > mips configurations are tested. I indeed could reproduce locally.
> > 
> > I'm guessing malta_kvm_defconfig isn't one of those defconfigs (and the
> > imgtec buildbots don't yet test stable branches). Which builders do you
> > use?
> 
> I use 0-day for these types of things, and it is not showing up any
> errors for the 4.4-stable kernel.  Can you get these configurations
> added to it so that we can ensure it doesn't regress?

Can we please get a few MIPS defconfigs added to the 0-day testing?

- malta_kvm_defconfig
  this probably doesn't need to be a high priority build, but other
  configs don't yet cover MIPS KVM so its worth having (that bit us
  recently with 3.12 and 4.4 stable branches).

- 64r6el_defconfig and 32r2_defconfig (4.9 and later)
  these are just a couple of the new generic/multiplatform kernel
  configurations added in 4.9 (Paul Burton Cc'd). There are others too,
  but these will probably give decent coverage. These are likely to be
  increasingly relevant as more/new platforms are converted to use it.
  (note, the r6 one may require a newish toolchain).

Thanks
James

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