On Mon, 1 Feb 2021 23:00:49 +0300 Alexander Ovechkin wrote: > Commit e5f0e8f8e456 ("net: sched: introduce and use qdisc tree flush/purge > helpers") > introduced qdisc tree flush/purge helpers, but erroneously used flush helper > instead of purge helper in qdisc_replace function. > This issue was found in our CI, that tests various qdisc setups by configuring > qdisc and sending data through it. Call of invalid helper sporadically leads > to corruption of vt_tree/cf_tree of hfsc_class that causes kernel oops:
> Fixes: e5f0e8f8e456 ("net: sched: introduce and use qdisc tree flush/purge > helpers") > Signed-off-by: Alexander Ovechkin <o...@yandex-team.ru> > Reported-by: Alexander Kuznetsov <w...@yandex-team.ru> > Acked-by: Dmitry Monakhov <dmtrmonak...@yandex-team.ru> > Acked-by: Dmitry Yakunin <z...@yandex-team.ru> > Acked-by: Cong Wang <xiyou.wangc...@gmail.com> No need to repost just to add the ack, patchwork will pick the tags up automatically. Applied, thanks!