This is an information message realy rather that a request for help.
its not a bug, but it might give a few people a headache
gigabyte AMD boards have an option
IOMMU in the bios
by default it is disabled.
the realtek 8111E and the black usb ports will behave like they have noise on them
for example TX errors on the nic, and keyboards doing there own thing.
this leads to inability to get dhcp to get dns servers or any combination around dhcp and
comunication errors.
other symptoms clonezilla cd rebooting over and over, mageia dvd booting, loading the ramdisk loader and then freezing int freezing during initial boot if install, and then trying a windows XP install and it works like a charm
until that is you enable IOMMU in the bios
from the jist i picked up in forums, some put this down to gigabytes
lack of even an existance of linux, others to all sorts of imotive reasons.
but this was a system i have built for a relation, based on the AMD FX-6300 6-Core FX Series
mounted on a Gbyte GA-970A-DS3P Motherboard with 1GB Zotac GT210 Synergy DDR3
4GB 2x2GB CMX4GX3M2B1600C9.
once IOMMU was enabled mageia 3 64 DVD release (KDE) behaves as we all expect it to.
without it i was starting to think noise on power supply, bad regulators, and planning to exchange the motherboard, i was a night and day change in stability
the thread that helped me, posted here to give credit , where credit is due.
http://forum.giga-byte.co.uk/index.php?topic=8129.0
heres another thread which backs up one of the symptoms
http://ubuntuforums.org/showthread.php?t=2183078
What is IOMMU, something to do with amd virtualisation in the chipset.
why i need this on a desktop that im not currently using virt with, just to make it stable i dont know
right now.
hope this helps others
regards peter