linux-kernel - Re: Supermicro X9SRL-F - channel enumeration error & ACPI/firmware bug question

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Message-ID: <CADLC3L09uxX_AU+22nfS20DCE97n1_ZxkG5A1R9joJcEua-EBg@mail.gmail.com>
Date:	Wed, 28 Nov 2012 18:55:17 -0600
From:	Robert Hancock <hancockrwd@...il.com>
To:	Justin Piszcz <jpiszcz@...idpixels.com>
Cc:	Bjorn Helgaas <bhelgaas@...gle.com>,
	Bruno Prémont <bonbons@...ux-vserver.org>,
	support@...ermicro.com, linux-kernel@...r.kernel.org,
	Dan Williams <djbw@...com>
Subject: Re: Supermicro X9SRL-F - channel enumeration error & ACPI/firmware
 bug question

On Wed, Nov 28, 2012 at 6:49 PM, Justin Piszcz <jpiszcz@...idpixels.com> wrote:
>
>
> -----Original Message-----
> From: Robert Hancock [mailto:hancockrwd@...il.com]
> Sent: Wednesday, November 28, 2012 7:35 PM
> To: Justin Piszcz
> Cc: 'Bjorn Helgaas'; 'Bruno Prémont'; support@...ermicro.com;
> linux-kernel@...r.kernel.org; 'Dan Williams'
> Subject: Re: Supermicro X9SRL-F - channel enumeration error & ACPI/firmware
> bug question
>
>
> What does lspci -vv show on that controller? Not sure what actual
> chipset that controller is, but there's a known issue with some Marvell
> 6Gbps SATA controllers with DMAR enabled - it seems the device issues
> memory read/write requests from the wrong PCI function ID and the IOMMU
> rightly denies access as the function listed in the requests doesn't
> have any mapping to that memory. I don't think there's presently a
> workaround other than disabling DMAR. We could (and likely should) be
> detecting that device and adding some kind of quirk for it.
>
> That sounds likely...
> It is shown below:
>
> Card name: HighPoint Rocket 620 Dual Port SATA 6 Gbps PCI Express 2.0 Host
> Adapter
>
> lspci -vv output:
>
> 84:00.0 SATA controller: Marvell Technology Group Ltd. 88SE9123 PCIe SATA
> 6.0 Gb/s controller (rev 11) (prog-if 01 [AHCI 1.0])
>   Subsystem: Marvell Technology Group Ltd. 88SE9123 PCIe SATA 6.0 Gb/s
> controller

Yeah, that's one of those controllers I think. But I can't tell from
the bit of the dmesg you posted exactly what's going on. Can you post
a full boot log from having the card installed and some drive attached
(by putting the boot drive on another controller for example)?

>> ==> Further issues with the X9SRL-F -- does this board support ASPM or is
>> this a Linux/ASPM implementation issue?
>> [    0.632170]  pci0000:ff: ACPI _OSC support notification failed,
> disabling
>> PCIe ASPM
>> [    0.632239]  pci0000:ff: Unable to request _OSC control (_OSC support
>> mask: 0x08)
>
> What's the full dmesg from this machine (or is it already posted somewhere)?
>
> It is now available here:
> http://home.comcast.net/~jpiszcz/20121128/dmesg.txt

Is that the same boot log? It doesn't have this error in it.
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