The patch titled
x86_64: Check for too many northbridges in IOMMU code
has been added to the -mm tree. Its filename is
x86_64-check-for-too-many-northbridges-in-iommu.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
From: Andi Kleen <ak@xxxxxxx>
The IOMMU code can only deal with 8 northbridges. Error out when more are
found.
Signed-off-by: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/x86_64/kernel/pci-gart.c | 8 ++++++++
1 files changed, 8 insertions(+)
diff -puN arch/x86_64/kernel/pci-gart.c~x86_64-check-for-too-many-northbridges-in-iommu arch/x86_64/kernel/pci-gart.c
--- devel/arch/x86_64/kernel/pci-gart.c~x86_64-check-for-too-many-northbridges-in-iommu 2006-05-10 21:18:06.000000000 -0700
+++ devel-akpm/arch/x86_64/kernel/pci-gart.c 2006-05-10 21:18:06.000000000 -0700
@@ -639,6 +639,14 @@ static int __init pci_iommu_init(void)
return -1;
}
+ i = 0;
+ for_all_nb(dev)
+ i++;
+ if (i > MAX_NB) {
+ printk(KERN_ERR "PCI-GART: Too many northbridges (%ld). Disabled\n", i);
+ return -1;
+ }
+
printk(KERN_INFO "PCI-DMA: using GART IOMMU.\n");
aper_size = info.aper_size * 1024 * 1024;
iommu_size = check_iommu_size(info.aper_base, aper_size);
_
Patches currently in -mm which might be from ak@xxxxxxx are
origin.patch
x86_64-disable-aperture-pci-region-check-in-amd64.patch
x86_64-avoid-irq0-ioapic-pin-collision.patch
x86_64-check-for-too-many-northbridges-in-iommu.patch
x86_64-fix-die_lock-nesting.patch
x86_64-add-nmi_exit-to-die_nmi.patch
x86_64-avoid-ebda-area-in-early-boot-allocator.patch
x86_64-move-ondemand-timer-into-own-work-queue.patch
git-acpi.patch
git-agpgart.patch
x86_64-mm-serialize-assign_irq_vector-use-of-static-variables-fix.patch
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