[openib-general] [BUG] NULL pointer deref in ib_sa_mcmember_rec_callback()

[Roland Dreier]

    Grant> I'm on a roll tonight...hit ^C after trying to start
    Grant> netperf from ionize (10.0.0.113) to a 4th node that didn't
    Grant> have IPoIB module loaded or configured yet. I could no
    Grant> longer ping ionize (10.0.0.113) nor ping out from it via
    Grant> IB.  I tried to unload ib_ipoib and got the NULL ptr deref
    Grant> segfault.  Will reboot the box at this point.

Strange, I don't have a theory for this one.

Can you look at the assembly for ib_sa_mcmember_rec_callback and guess
what the NULL deref is accessing?

 - R.