netdev - Re: Network hang after c3f1010b30f7fc611139cfb702a8685741aa6827 with CIPSO & Smack

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Message-ID: <7d833f59-c68f-f779-4de4-15bc0b26ac7c@cumulusnetworks.com>
Date:	Tue, 5 Jul 2016 17:49:41 -0700
From:	David Ahern <dsa@...ulusnetworks.com>
To:	Casey Schaufler <casey@...aufler-ca.com>,
	David Miller <davem@...emloft.net>,
	Paul Moore <paul@...l-moore.com>
Cc:	Linux-Netdev <netdev@...r.kernel.org>
Subject: Re: Network hang after c3f1010b30f7fc611139cfb702a8685741aa6827 with
 CIPSO & Smack

On 7/5/16 5:38 PM, Casey Schaufler wrote:
> I have encountered a system hang with my Smack
> networking tests that bisects to the change below.
> I can't say that I have any idea why the change
> would impact the Smack processing, but there appears
> to be some serious packet processing going on. The
> Smack code is using CIPSO on the loopback interface.
> The test is supposed to verify that labels can be
> set on the packets using CIPSO. Unlabeled packets
> do not appear to be impacted. I do not know if SELinux
> is affected, and if not, why not. Smack and SELinux
> use CIPSO differently.

What are the commands to repeat the test?