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Date: Tue, 17 Sep 2019 10:03:08 -0700 From: Cong Wang <xiyou.wangcong@...il.com> To: Vlad Buslov <vladbu@...lanox.com> Cc: syzbot <syzbot+ac54455281db908c581e@...kaller.appspotmail.com>, Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, David Miller <davem@...emloft.net>, David Ahern <dsahern@...il.com>, Florian Fainelli <f.fainelli@...il.com>, "hawk@...nel.org" <hawk@...nel.org>, Ido Schimmel <idosch@...lanox.com>, Jakub Kicinski <jakub.kicinski@...ronome.com>, Jamal Hadi Salim <jhs@...atatu.com>, Jiri Pirko <jiri@...lanox.com>, Jiri Pirko <jiri@...nulli.us>, John Fastabend <john.fastabend@...il.com>, Martin KaFai Lau <kafai@...com>, LKML <linux-kernel@...r.kernel.org>, Linux Kernel Network Developers <netdev@...r.kernel.org>, Nikolay Aleksandrov <nikolay@...ulusnetworks.com>, Petr Machata <petrm@...lanox.com>, Roopa Prabhu <roopa@...ulusnetworks.com>, Song Liu <songliubraving@...com>, syzkaller-bugs <syzkaller-bugs@...glegroups.com>, "xdp-newbies@...r.kernel.org" <xdp-newbies@...r.kernel.org>, "yhs@...com" <yhs@...com> Subject: Re: BUG: sleeping function called from invalid context in tcf_chain0_head_change_cb_del On Tue, Sep 17, 2019 at 1:27 AM Vlad Buslov <vladbu@...lanox.com> wrote: > Hi Cong, > > Don't see why we would need qdisc tree lock while releasing the > reference to (or destroying) previous Qdisc. I've skimmed through other > scheds and it looks like sch_multiq, sch_htb and sch_tbf are also > affected. Do you want me to send patches? Yes, please do.
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