On 24.10.2014 09:26, Mateusz Guzik wrote:
Hello there,
dtrace revealed that the kernel schedules nd6_timer a lot. Not only
that, his callout is not mpsafe so the kernel locks Giant which I
believe is an oversight.
Also the code looks really suspicious as it walks V_in6_ifaddrhead
without any locking (not to mention there is an interestng comment:
XXXRW: in6_ifaddrhead locking :>)
Yes, I'm going to fix some issues there after writing proper API.
ND changes are in https://reviews.freebsd.org/D903 .
Dropping it here in case there is someone interested in fixing this up.
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