[openib-general] Re: ipoib use of multicast module on trunk causes kernel oops on 2.6.16

[Michael S. Tsirkin]

Quoting r. Roland Dreier <rdreier at cisco.com>:
> It looks like ib_multicast may be unloaded without canceling all of
> its SA queries, and ib_sa ends up calling back into an unloaded
> module.

Looks like this. Note its not enough to cancel query, you must wait for it
to complete as well.
Cancelling outstanding queries properly is one of the harder things in ipoib
multicast code.

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MST