Messages in this thread | | | Date | Sat, 12 Jun 2004 14:14:14 -0400 | From | David Ford <> | Subject | Re: [culprit found] Re: [boot hang] 2.6.7-rc2, VIA VT8237 |
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Yep, that patch makes this thing bootable now :)
Thank you, David
Andi Kleen wrote:
>David Ford <david+challenge-response@blue-labs.org> writes: > > > >>Culprit found. If CONFIG_IOMMU_DEBUG is enabled, the machine will >>hang on boot at the partition check when using the VIA driver. >> >> > >The real culprit is buggy VIA silicon. Use this patch. > >-Andi > >--------------------------------------------------------------- >Enable VIA softmmu workaround for iommu=force/IOMMU_DEBUG too > >diff -u linux-2.6.7rc3-bk3/arch/x86_64/kernel/io_apic.c-o linux-2.6.7rc3-bk3/arch/x86_64/kernel/io_apic.c >--- linux-2.6.7rc3-bk3/arch/x86_64/kernel/io_apic.c-o 2004-06-11 03:02:42.000000000 +0200 >+++ linux-2.6.7rc3-bk3/arch/x86_64/kernel/io_apic.c 2004-06-12 15:46:35.000000000 +0200 >@@ -252,7 +252,8 @@ > switch (vendor) { > case PCI_VENDOR_ID_VIA: > #ifdef CONFIG_GART_IOMMU >- if (end_pfn >= (0xffffffff>>PAGE_SHIFT) && >+ if ((end_pfn >= (0xffffffff>>PAGE_SHIFT) || >+ force_iommu) && > !iommu_aperture_allowed) { > printk(KERN_INFO > "Looks like a VIA chipset. Disabling IOMMU. Overwrite with \"iommu=allowed\"\n"); > > > begin:vcard fn:David Ford n:Ford;David email;internet:david@blue-labs.org title:Industrial Geek tel;home:Ask please tel;cell:(203) 650-3611 x-mozilla-html:TRUE version:2.1 end:vcard
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