Re: [PATCH rdma-next 2/2] IB/mlx4: Reduce SRIOV multicast cleanup warning message to debug level

[Doug Ledford <dledford@redhat.com>]

On Tue, 2017-03-21 at 12:57 +0200, Leon Romanovsky wrote:
> From: Jack Morgenstein <jackm@dev.mellanox.co.il>
> 
> A warning message during SRIOV multicast cleanup should have actually
> been
> a debug level message. The condition generating the warning does no
> harm
> and can fill the message log.
> 
> In some cases, during testing, some tests were so intense as to swamp
> the
> message log with these warning messages, causing a stall in the
> console
> message log output task. This stall caused an NMI to be sent to all
> CPUs
> (so that they all dumped their stacks into the message log).
> Aside from the message flood causing an NMI, the tests all passed.
> 
> Once the message flood which caused the NMI is removed (by reducing
> the
> warning message to debug level), the NMI no longer occurs.
> 
> Sample message log (console log) output illustrating the flood and
> resultant NMI (snippets with comments and modified with ... instead
> of hex digits, to satisfy checkpatch.pl):

[ snip ]

Thanks, applied.

-- 
Doug Ledford <dledford@redhat.com>
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