On 2/21/2013 12:43 PM, Robert Moskowitz wrote:
> :[Firmware Warn]: Your BIOS is broken; DMAR reported at address fed90000
> returns all ones!
I googled "Your BIOS is broken; DMAR reported at address fed90000
returns all ones!" and got some related results.
this bug report (on FC12) says... "yes, your bios is broken, but its
not a bug, we worked around it"
https://bugzilla.redhat.com/show_bug.cgi?id=896652
on a similar/identical bug with Fedora FC17, someone suggested booting
with iommu=off to work around this.
on a similar debian bug report, it was stated that this error only
happened when the BIOS setting for "VT-d" was enabled. VT-d is only
used to virtualized complete IO cards (like, dedicating a specified
PCI-Express device to a given VM rather than handling it in the host and
virtualizing the logical device). If your BIOS has an option to turn
VT-d off, you might try that.
--
john r pierce 37N 122W
somewhere on the middle of the left coast
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