Re: ATA failure regression

From: Henrique de Moraes Holschuh
Date: Thu Sep 29 2016 - 07:26:11 EST

On Thu, 29 Sep 2016, tj@xxxxxxxxxx wrote:
> On Wed, Sep 28, 2016 at 05:45:08AM +0000, Shah, Nehal-bakulchandra wrote:
> > Can someone please help me to debug this issue?
> The only thing I can do from libata side is disbling msi on the
> affected platform, but the problem doesn't seem confined to ahci, so
> probably the right thing to do for now is disabling msi on the
> platform?

Actually, according to Shah's post from the 26th to this thread,
everything works just fine even with the IOMMU enabled, as long as the
system is configured to NOT auto-shutdown unused SATA ports.

That seems to give some extra avenues at fixing/working around the
issue, maybe?

Henrique Holschuh