linux-kernel - RE: ATA failure regression

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Date:   Fri, 23 Sep 2016 10:10:17 +0000
From:   Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
To:     "Shah, Nehal-bakulchandra" <Nehal-bakulchandra.Shah@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "holler@...oftware.de" <holler@...oftware.de>,
        "tj@...nel.org" <tj@...nel.org>,
        "linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>
CC:     "Deucher, Alexander" <Alexander.Deucher@....com>
Subject: RE: ATA failure regression

> Hi All,
> 
> Resending this wider audience
> 
> Currently I am working on AMD future platform.  I am hitting the same bug of
> ATA Failure Regression reported in past.
> (https://patchwork.kernel.org/patch/6875661/) or
> http://lkml.iu.edu/hypermail/linux/kernel/1507.3/01961.html
> 
> I am newbie to this and because of this Ubuntu  16.04 is not booting. If disable
> IOMMU and MSI obviously it works but that is not solution. Even when I bisected
> it boiled to same place which was mentioned in past discussion.
> 
So here when you are disabling MSI, it is working with legacy interrupts or MSI-X.
Can you post the end sata device lscpi -xxx -vvv content. 

Bharat