Re: GART Error 11

[Arthur Perry]

Hi Saurabh,

I almost forgot.
Can you also tell me which AMD CPUs you are using?
Preferrably by number if you know (starts with OSA I believe), or at least
the CPU speed.
Thanks!

Arthur Perry
Lead Linux Developer / Linux Systems Architect
Validation, CSU Celestica
Sair/Linux Gnu Certified Professional
Providing professional Linux solutions for 7+ years

On Tue, 1 Jun 2004, Arthur Perry wrote:

> Hi Saurabh,
>
> I am working on this issue as we speak.
> It is interesting that your machine crashes entirely with iommu disabled.
>
> I am starting to think there is more to this than just the kernel
> misreporting other hardware errors (being improperly decoded as GART
> errors).
> On my machine, I am actaully getting Gart erros on 3 out of 4 CPUS when I
> use RedHat's 2.4.21-9EL kernel. This same kernel when rebuilt from source,
> however, will not produce GART errors when built without AGP support.
>
> Here is my Extended error code (bits 19-16 on 0:[18,19,1b]:3 at offset 0x44:
> 0101 = GART error
>
> So, this is not a translation issue on my side.
>
> Can you do this for me?
>
> pcitweak -r 0:18:3 0x44
> and
> pcitweak -r 0:19:3 0x44
>
>
> Thanks!
>
>
> Arthur Perry
> Lead Linux Developer / Linux Systems Architect
> Validation, CSU Celestica
> Sair/Linux Gnu Certified Professional
> Providing professional Linux solutions for 7+ years
>
> On Tue, 1 Jun 2004, Saurabh Barve wrote:
>
> > Hi,
> >
> > I know this has been posted before on this list, but the solution
> > suggested does not seem to work for me.
> >
> > I have a dual opteron system with 8 GB of RAM. I am running RHEL 3.0 AS on
> > it. The kernel version is 2.4.21-4.ELsmp. The motherboard I am using is
> > the Tyan Thunder K8S Pro - 2882 motherboard.
> >
> > I am getting the following error every two minutes or so:
> >
> > GART error 11
> > Lost an northbridge error
> > NB error address some-hex-number
> > Error uncorrected
> >
> > I checked the various postings on the list, and someone suggested that
> > passing iommu=off option to the kernel solved the problem for him.
> > However, when I tried that, it got the kernel to panic. I read somewhere
> > that a newer kernel would fix these 'bugs' in the default RHEL kernel.
> > However, I am using the onboard SATA controller for my hard disks. This
> > requires binary drivers from Tyan. I already downloaded a newer kernel,
> > however, it breaks the drivers, so I can't boot into the new kernel.
> >
> > Here is my output from lspci:
> >
> > 00:06.0 PCI bridge: Advanced Micro Devices [AMD] AMD-8111 PCI (rev 07)
> > 00:07.0 ISA bridge: Advanced Micro Devices [AMD] AMD-8111 LPC (rev 05)
> > 00:07.1 IDE interface: Advanced Micro Devices [AMD] AMD-8111 IDE (rev 03)
> > 00:07.2 SMBus: Advanced Micro Devices [AMD] AMD-8111 SMBus 2.0 (rev 02)
> > 00:07.3 Bridge: Advanced Micro Devices [AMD] AMD-8111 ACPI (rev 05)
> > 00:0a.0 PCI bridge: Advanced Micro Devices [AMD] AMD-8131 PCI-X Bridge
> > (rev 12)
> > 00:0a.1 PIC: Advanced Micro Devices [AMD] AMD-8131 PCI-X APIC (rev 01)
> > 00:0b.0 PCI bridge: Advanced Micro Devices [AMD] AMD-8131 PCI-X Bridge
> > (rev 12)
> > 00:0b.1 PIC: Advanced Micro Devices [AMD] AMD-8131 PCI-X APIC (rev 01)
> > 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
> > 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
> > 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
> > 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
> > 00:19.0 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
> > 00:19.1 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
> > 00:19.2 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
> > 00:19.3 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
> > 02:09.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5704
> > Gigabit Ethernet (rev 03)
> > 02:09.1 Ethernet controller: Broadcom Corporation NetXtreme BCM5704
> > Gigabit Ethernet (rev 03)
> > 03:00.0 USB Controller: Advanced Micro Devices [AMD] AMD-8111 USB (rev 0b)
> > 03:00.1 USB Controller: Advanced Micro Devices [AMD] AMD-8111 USB (rev 0b)
> > 03:05.0 Unknown mass storage controller: Silicon Image, Inc. (formerly CMD
> > Technology Inc) Silicon Image SiI 3114 SATARaid Controller (rev 02)
> > 03:06.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27)
> > 03:08.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev
> > 10)
> >
> > The dmesg output was too large to include inline, so I am attaching it as
> > a text file.
> >
> > I tried passing the following options to the kernel:
> >
> > iommu=noagp
> > iommu=noforce
> > iommu=off (results in kernel-panic)
> > mce=off
> > mce=0
> >
> > I tried all the above in various combinations, but none of them worked.
> > The machine doesn't crash, and everything else seems to work fine, but I'd
> > like to get rid of these errors.
> >
> > There are some snippets from the dmesg output that I found to be of
> > interest:
> >
> > ------------------------------------------------------------
> > Linux agpgart interface v0.99 (c) Jeff Hartmann
> > agpgart: Maximum main memory to use for agp memory: 7956M
> > agpgart: no supported devices found.
> > PCI-DMA: Disabling AGP.
> > PCI-DMA: aperture base @ 10000000 size 65536 KB
> > PCI-DMA: Reserving 64MB of IOMMU area in the AGP aperture
> > -----------------------------------------------------------
> >
> > -----------------------------------------------------------
> >
> > GART error 11
> > Lost an northbridge error
> > NB error address 00000000fbfe4398
> > Error uncorrected
> > Northbridge status a40000000005001b
> >
> > ----------------------------------------------------------
> >
> >
> > Any suggestions?
> >
> > Thanks,
> > Saurabh.
> >
>
>
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>
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