On 07/24/2012 12:06 PM, Roland Dreier wrote:
[resending because I forgot to reply-all]
On Tue, Jul 24, 2012 at 9:39 AM, Steve Wise <[email protected]> wrote:
Can anyone help me understand how I can resolve this? Its saying there is
some circular dependency problem with the cxgb4 uld_mutex, the networking
rtnl_mutex, and ib_core's device_mutex. I can't decipher the stuff below
though. It only seems to happen when there is a cxgb4 and ipoib device
present.
Do you have a real IB HCA installed too?
Yes.
I suspect this is a lockdep false positive where it is mixing together
lock ordering from the IB - IPoIB adapter and the cxgb4 netdev,
and seeing a deadlock that can't really happen.
I'll take a look, although I don't have a cxgb4 device so I can't test
directly. Would you be able to test a patch if I come up with one?
Sure!
Steve.
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