netdev - Re: [PATCH v3 net] net: ipv6: regenerate host route if moved to gc list

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Message-ID: <c86e9056-151c-6b9d-9475-99158de0874b@cumulusnetworks.com>
Date:   Tue, 25 Apr 2017 09:54:04 -0600
From:   David Ahern <dsa@...ulusnetworks.com>
To:     Andrey Konovalov <andreyknvl@...gle.com>
Cc:     netdev <netdev@...r.kernel.org>,
        Dmitry Vyukov <dvyukov@...gle.com>, mmanning@...cade.com,
        Martin KaFai Lau <kafai@...com>
Subject: Re: [PATCH v3 net] net: ipv6: regenerate host route if moved to gc
 list

On 4/25/17 6:50 AM, Andrey Konovalov wrote:
> I've been running syzkaller with your patch and got another report
> from ip6_pol_route.

In general the existing patch cleans up all of the ipv6 fib kasan and
WARN_ON traces that were seen?

> 
> It happened only once so far and I couldn't reproduce it.

Some similarity in the sense of a ipv4 route in the ipv6 fib. That's
only going to happen if it hits the dst gc list and then back.

This duplicates what Dmitry reported on March 3rd.