Bug#817063: Severe performance regression in Infiniband or IPoIB
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Package: linux-image-4.3.0-1-powerpc64le
Version: 4.3.5-1
When upgrading to the latest 4.3 testing kernel on a Mellanox MT25208
controller, all IPoIB links showed a severe performance regression as
compared with kernel 3.16. The bandwidth of each link dropped from around
3Gbps to around 3Mbps (3 orders of magnitude worse!); reverting to the
3.16 kernel immediately fixed this problem.
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