GART Error 11

Wed Jun 2 14:16:14 UTC 2004

Hello,

Oops. Sorry I have made a mistake in all of my statements below.
It was after 5pm yesterday, and it was a long day...
It's not offset 0x44 that we are interested in.
My listings were at offset 0x48, which is MCA NB Status Low Register.
Sorry, did not mean to confuse anybody.

So Saurabh, can you please do this again with the corrected lines?

pcitweak -r 0:18:3 0x48
and
pcitweak -r 0:19:3 0x48

While you are at it, can you send us status high as well?

pcitweak -r 0:18:3 0x4c
and
pcitweak -r 0:19:3 0x4c

Thanks, and sorry about the confusion.

Arthur Perry

On Tue, 1 Jun 2004, Saurabh Barve wrote:

> Arthur,
>
> Here are the results that I got
>
> > Can you do this for me?
> >
> > pcitweak -r 0:18:3 0x44
>
> 0x02400040
>
> > and
> > pcitweak -r 0:19:3 0x44
>
> 0x02400040
>
> Hope this helps,
> Saurabh.
>
> >
> > 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.
> > >
> >
>
> --
> ===============================================================================
> Saurabh Barve                                        Phone:
> System Administrator/Data Specialist                 970-491-7714 (voice)
> Montgomery Research Group,                           970-491-8449 (Fax)
> Atmospheric Sciences Department,
> Fort Collins, Colorado
> Colorado State University
>
> Mail : sa at atmos.colostate.edu
> Web  : http://fjortoft.atmos.colostate.edu/~sa
>
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