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.
