[Xen-bugs] [Bug 1227] Out of SW-IOMMU space, 3ware Raid controller/3w-xxxx module

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1227





------- Comment #3 from fthain@xxxxxxxxxxxxxxxxxxx  2011-09-14 23:46 -------
Here's some more background for this bug...

http://lists.xensource.com/archives/html/xen-users/2008-08/msg00109.html
http://lists.xensource.com/archives/html/xen-users/2010-11/msg00377.html
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=606968
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=603727
https://bugzilla.redhat.com/show_bug.cgi?id=236922

Some of these reports seem to be associated with IBM xSeries RSA2 cards, some
with SAS SCSI DMA. I encountered both manifestations on one particular machine
(two different dom0 kernel builds). Detailed report to follow.

I think this bug report is wrongly categorised as "Hardware support"; the
problem seems to be with the software IOMMU.


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