[Bug 129260] Re: opteron amd64 data corruption

[Joseph Fisk]

iommu=soft appears to have fixed the corruption on one system, but
another is still having problems.  The key difference between the fixed
and broken systems is that the broken system has its root filesystem on
a linux (md) raid1 disk pair.

I installed a single extra drive in the broken system and ran tests
using md5sum with iommu=soft, and no corruption appeared.  So apparently
the broken system was suffering from the iommu issue as well.

I'm unsure whether to keep this bug report open, or file a new report?
I could also use some advice on potential workarounds or ways to better
isolate the problem.

-- 
opteron amd64 data corruption
https://bugs.launchpad.net/bugs/129260
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