Messages in this thread | | | Date | Tue, 13 Sep 2011 12:56:01 +0200 | From | Maarten Lankhorst <> | Subject | Re: VT-d / iommu problem on Intel S3210SH |
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Hey Mateusz,
On 09/12/2011 03:22 PM, Mateusz Murawski wrote: > Hi > I have problem with Intel VT for Directed I/O. > When I enable this option in bios, my system (Fedora 15) can't start. > Kernel 2.6.40.4-5.fc15.x86_64 > Bios S3200X38.86B.00.00.0052 > > Last lines from dmesg > > [ 5.357181] DRHD: handling fault status reg 3 > [ 5.358179] DMAR:[DMA Write] Request device [02:08.0] fault addr ffe8a000 > [ 5.358179] DMAR:[fault reason 02] Present bit in context entry is clear > [ 24.087406] dracut Warning: No root device "block:/dev/disk/by-uuid/1c624f0d-4593-4653-a4ce-b7af80d549ff" found > > Full dmesgs > dmesg_bad_2.6.40 VT-d enable http://pastebin.com/AXAByHBh > dmesg_good_2.6.40 VT-d enable iommu=off http://pastebin.com/8zrMRiin > > Please let me know if you need more information. I have access by serial console. > Does that cpu have vt-d support?
http://ark.intel.com/products/35432 doesn't list it. If you enable it for the mainboard, but cpu has no support, weird things happen.
For comparison a cpu that does: http://ark.intel.com/products/52209
~Maarten
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