RE: ATA failure regression

[Bharat Kumar Gogada]

> 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