Re: RTNL: assertion failed at net/ipv6/addrconf.c (1699)

[Cong Wang]

On Tue, Sep 2, 2014 at 12:02 PM, Hannes Frederic Sowa
<hannes@xxxxxxxxxxxxxxxxxxx> wrote:
>
> If fixes tag is well researched, it won't point to the addition of
> ASSERT_RTNL() but your patch would help to discover a bug somewhere else
> in the stack.
>
> I think for this patch a fixes-tag is hard to find because it is hard to
> find because it dates back to the beginning of the git history IMHO.
>

As I replied to Eric, this warning is probably caused by
the following commit:

commit c15b1ccadb323ea50023e8f1cca2954129a62b51
Author: Hannes Frederic Sowa <hannes@xxxxxxxxxxxxxxxxxxx>
Date:   Thu Mar 27 18:28:07 2014 +0100

    ipv6: move DAD and addrconf_verify processing to workqueue


HOWEVER, you can definitely argue that the code without your
ASSERT_RTNL() was already broken, it's a little hard to tell without
digging more, that might date back to the beginning of git as you said.

For safety, I think we can simply assume it's that commit to be fixed
so that we don't fix older kernels until someone really reports a bug.
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