It's worse than 3.18, but only if your test is rmmod ipoib based. For normal 
running conditions it's better. However, I'm going to try and fix the rmmod 
issue today if at all possible.

Sent from my iPhone

> On Jan 21, 2015, at 12:20 PM, Roland Dreier <rol...@kernel.org> wrote:
> 
>> On Tue, Jan 20, 2015 at 8:16 AM, Erez Shitrit <ere...@dev.mellanox.co.il> 
>> wrote:
>> 
>> After trying your V4 patch series, I can tell that first, the endless 
>> scheduling of
>> the mcast task is indeed over, but still, the multicast functionality in 
>> ipoib is unstable.
> 
> Is this worse than 3.18?  (Have you tested that?)
> 
> Because Doug's changes fixed some bad, easy-to-reproduce issues.  On
> the other hand we don't want to introduce new regressions to fix the
> old issues.
> 
> I think we only have a few days to decide whether to revert back to
> 3.18 code, or push forward with these fixes.
> 
> - R.
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