From: Cong Wang <xiyou.wangc...@gmail.com>
Date: Fri, 11 Aug 2017 14:06:31 -0700
> On Fri, Aug 11, 2017 at 1:32 PM, Florian Westphal <f...@strlen.de> wrote:
>> Cong Wang <xiyou.wangc...@gmail.com> wrote:
>>> On Thu, Aug 10, 2017 at 2:31 AM, Konstantin Khlebnikov
>>> <khlebni...@yandex-team.ru> wrote:
>>> > In previous API tcf_destroy_chain() could be called several times and
>>> > some schedulers like hfsc and atm use that. In new API tcf_block_put()
>>> > frees block but leaves stale pointer, second call will free it once again.
>>> Which call path do we call tcf_block_put() for multiple times on
>>> the same block? Please be specific, it is not obvious.
>> you can use tools/testing/selftests/net/rtnetlink.sh to reproduce this
>> (kernel panics on delete of root qdisc).
> I am sure this is not how changelog works. We have enough space
> in changelog to describe a bug, don't have to leave details in a
> following-up email which will almost surely be lost in history.
Yeah, the more information in the commit log message the better.