[openib-general] kernel crashes while using mvapich-gen2 over ib_uverbs

[Roland Dreier]

Hmm, looks like it might be a use-after-free bug (6b is the slab's
poison value):

    Christian> RAX: 6b6b6b6b6b6b6b6b

Are you running with CONFIG_DEBUG_SLAB enabled?

Also can you send the output of "objdump -d" on uverbs_mem.o from your
kernel compile?

 - R.