Messages in this thread | | | Date | Tue, 1 Jun 2004 17:48:16 -0400 (EDT) | From | Arthur Perry <> | Subject | Re: GART Error 11 |
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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. > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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