Re: 4.16 genirq change prevents HP servers from booting [was: Re: linux-next: Signed-off-by missing for commit in the device-mapper tree]

[Ming Lei]

On Mon, Jan 15, 2018 at 10:25:01AM -0500, Mike Snitzer wrote:
> On Mon, Jan 15 2018 at  8:27am -0500,
> Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> 
> > Hi all,
> > 
> > Commit
> > 
> >   34e1467da673 ("Revert "genirq/affinity: assign vectors to all possible CPUs"")
> > 
> > is missing a Signed-off-by from its author and committer.
> > 
> > Reverts are commits as well.
> 
> Right, I'm aware.  I staged the tree that made some HP servers finally
> work with the latest linux-block 4.16 changes.  Without thinking about
> the broader implications.  Anyway, I'll drop the revert from
> linux-dm.git's 'for-next'.
> 
> Because I'm confident others will hunt down the irq issues.
> 
> I think Ming was looking to grab the queue mapping info and CPU related
> info from the affected server.

Hi Mike,

I have cooked a fix today, please see the following link:

	https://marc.info/?l=linux-kernel&m=151601867018444&w=2

This issue is clear, and has been described in above link and the
patch. If no objection, I will prepare a formal version.

-- 
Ming