[ofa-general] Re: [PATCH v2] IB/ipoib: Split CQs for IPOIB UD

[Roland Dreier]

 > I started working on a fix for this by arming the send CQ when the QP
 > reaches 63 outstanding requests and draining the CQ at the completion
 > handler while holding priv->tx_lock.

OK (I hope 63 is replaced with something that is computed based on other
constants though -- like you could arm the CQ when you're about to do
netif_stop_queue())... seems like it should work.

 > But I had another strange problem that I don't understand. If I just
 > load and unload ib_ipoib, the system crashes showing messages that
 > appear like there has been a memory corruption. If I comment out
 > destroying the send CQ at ipoib_transport_dev_cleanup() the crashes
 > disappear. Do you see this as well?

Not here... what tree are you running?

 - R.