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

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Subject: [Xen-bugs] [Bug 1227] Out of SW-IOMMU space, 3ware Raid controller/3w-xxxx module
From: bugzilla-daemon@xxxxxxxxxxxxxxxxxxx
Date: Thu, 15 Sep 2011 01:37:17 -0700
Delivery-date: Thu, 15 Sep 2011 01:37:28 -0700
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konrad.wilk@xxxxxxxxxx changed:

           What    |Removed                     |Added
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID

------- Comment #8 from konrad.wilk@xxxxxxxxxx  2011-09-15 01:37 -------
So.. why are you not using the default values (64MB)

I see you have  swiotlb=128 which ends up with:

DMA: Placing 0MB software IO TLB between ffff880020000000 - ffff880020040000
DMA: software IO TLB at phys 0x20000000 - 0x20040000

which of course means that there is not enough space. 0MB will
cause issues like this. The parameter (if you look in the
kernel-parameters.txt) defines it as -pages_, not megabytes.

So either leave it as default, or change it to larger value, like swiotlb=65535

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