Multiple cores/race conditions in IPv6 RA

[Andrey V. Elsukov]

On 10.12.15 23:02, Mark Johnston wrote:
>> some time ago Mark Johnston has published there the patch related to
>> this problem:
>> https://lists.freebsd.org/pipermail/freebsd-net/2013-February/034682.html
>>
>> Maybe Mark has something to say about it.
> 
> I started trying to push this work in with D2254, which fixes some of
> the global IPv6 addr list locking. It turns out to be pretty tricky
> to lock both NDP and the global address list properly; the patch in my
> public directory fixes only some of the issues with NDP and is thus
> incomplete, which is why I'd been reluctant to push it in.
> 
> I'll return to D2254 and try and make some further progress on this.

There was one report about panic, I think it is related to this problem
too: http://www.grosbein.net/img/v6crash.png

-- 
WBR, Andrey V. Elsukov

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