linux-kernel - Re: linux-next boot error: WARNING: suspicious RCU usage in ipmr_get

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Message-Id: <1D570330-8E3E-4596-AD9B-21CE6A86F146@lca.pw>
Date:   Wed, 6 May 2020 16:21:05 -0400
From:   Qian Cai <cai@....pw>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Dmitry Vyukov <dvyukov@...gle.com>,
        Amol Grover <frextrite@...il.com>,
        Madhuparna Bhowmik <madhuparnabhowmik10@...il.com>,
        syzbot <syzbot+1519f497f2f9f08183c6@...kaller.appspotmail.com>,
        David Miller <davem@...emloft.net>, kuba@...nel.org,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        LKML <linux-kernel@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        "paul E. McKenney" <paulmck@...nel.org>,
        "Joel Fernandes (Google)" <joel@...lfernandes.org>
Subject: Re: linux-next boot error: WARNING: suspicious RCU usage in
 ipmr_get_table



> On May 6, 2020, at 4:16 PM, Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> 
> Hi Qian,
> 
> On Tue, 28 Apr 2020 09:56:59 -0400 Qian Cai <cai@....pw> wrote:
>> 
>>> On Apr 28, 2020, at 4:57 AM, Dmitry Vyukov <dvyukov@...gle.com> wrote:  
>>>> net/ipv4/ipmr.c:136 RCU-list traversed in non-reader section!!  
>> 
>> https://lore.kernel.org/netdev/20200222063835.14328-2-frextrite@gmail.com/
>> 
>> Never been picked up for a few months due to some reasons. You could probably
>> need to convince David, Paul, Steven or Linus to unblock the bot or carry patches
>> on your own?
> 
> Did you resubmit the patch series as Dave Miller asked you to (now that
> net-next is based on v5.7-rc1+)?

Actually, it was Amol not me who submit the patch, so let him to answer that.