Yes, the kernel crashed after watchdog detected a lockup. This
happened while running udaddy -p 0x2 with RoCE. The crash isn't 100%
reproducible but I have a pair of nodes where that used to crash with
probability of 50%.
The fix you suggest seems to detect the mismatch between port space
and link
From: Moni Shoua mo...@mellanox.com
In general, when link layer is ETHERNET it is wrong to use IPoIB port space
since
no IPoIB interface is available. Specifically, setting qkey when port space is
RDMA_PS_IPOIB, requires SA query which is impossible when link layer is
IB_LINK_LAYER_ETHERNET.
