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RE: ATA failure regression

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Hi 

Can someone please help me to debug this issue?

Regards
Nehal

-----Original Message-----
From: Shah, Nehal-bakulchandra 
Sent: Monday, September 26, 2016 3:45 PM
To: 'Bharat Kumar Gogada' <bharat.kumar.gogada@xilinx.com>
Cc: Deucher, Alexander <Alexander.Deucher@amd.com>; linux-pci@vger.kernel.org; holler@ahsoftware.de; tj@kernel.org; linux-ide@vger.kernel.org; linux-kernel@vger.kernel.org
Subject: RE: ATA failure regression

Hi Bharat

Thanks for the reply. I have observed following thing

If IOMMU is enabled in BIOS and I use following option FCH SATA Debug Options --> Unused SATA Port Auto Shut Down Disabled. Issue is not happening. I have attached dmesg and lspci output with this option

Also I have attached lspci log with IOMMU disabled.

When issue is happening I am not able to take lspci logs as it stops in initramfs itself. I will try to get.


Thanks

Nehal
-----Original Message-----
From: Bharat Kumar Gogada [mailto:bharat.kumar.gogada@xilinx.com]
Sent: Friday, September 23, 2016 3:40 PM
To: Shah, Nehal-bakulchandra <Nehal-bakulchandra.Shah@amd.com>; linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; holler@ahsoftware.de; tj@kernel.org; linux-ide@vger.kernel.org
Cc: Deucher, Alexander <Alexander.Deucher@amd.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

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RE: ATA failure regression "Shah, Nehal-bakulchandra" <Nehal-bakulchandra.Shah@amd.com> - 2016-09-28 07:50 +0200
  Re: ATA failure regression "tj@kernel.org" <tj@kernel.org> - 2016-09-29 10:30 +0200
    Re: ATA failure regression Henrique de Moraes Holschuh <hmh@hmh.eng.br> - 2016-09-29 13:30 +0200
      Re: ATA failure regression "tj@kernel.org" <tj@kernel.org> - 2016-09-29 13:40 +0200

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