Roland Dreier wrote:
> ipoib_stop() calls ipoib_ib_dev_down() which calls ipoib_mcast_dev_flush()
> which calls ipoib_mcast_free(), which calls ipoib_mcast_leave(). The latter
> calls ib_sa_free_multicast(), and this wait until the multicast
> completion handler finishes. This happens to be
> ipoib_mcast_join_complete(), which
> waits for the rtnl_lock(), whcih was already taken by ipoib_stop().
I see... I wonder why lockdep didn't warn about this in my testing.
Anyway, any ideas how we want to fix this?
- R.
You queue the netif_carrier_on() stuff on ipoib_workqueue instead of
running it (from ipoib_mcast_join_complete()).
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