linux-kernel - Re: Re: WARNING in ep_poll

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Date:   Mon, 11 Mar 2019 17:37:54 +0100
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     syzbot <syzbot+aea82bf9ee6ffd9a79d9@...kaller.appspotmail.com>,
        Roman Penyaev <rpenyaev@...e.de>
Cc:     "'Dmitry Vyukov' via syzkaller-bugs" 
        <syzkaller-bugs@...glegroups.com>,
        Andrew Morton <akpm@...ux-foundation.org>, dbueso@...e.de,
        Jason Baron <jbaron@...mai.com>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Paul McKenney <paulmck@...ux.vnet.ibm.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Al Viro <viro@...iv.linux.org.uk>
Subject: Re: Re: WARNING in ep_poll_callback

On Mon, Mar 11, 2019 at 5:36 PM syzbot
<syzbot+@...kaller.appspotmail.com> wrote:
>
> > On Mon, Mar 11, 2019 at 2:53 PM Roman Penyaev <rpenyaev@...e.de> wrote:
>
> >> On 2019-03-11 14:45, Dmitry Vyukov wrote:
> >> > On Mon, Mar 11, 2019 at 2:37 PM Roman Penyaev <rpenyaev@...e.de> wrote:
> >> >>
> >> >> Hi Andrew,
> >> >>
> >> >> I thought "epoll: loosen irq safety in ep_poll_callback()" patch was
> >> >> removed from your tree, at least I got a notification on 9th of
> >> >> january,
> >> >> also I do not see it in the linux-next tree.
> >> >>
> >> >> Should I ignore this syzbot message?
> >> >
> >> > If this was resolved we need to communicate it to syzbot one way or the
> >> > other.
> >> > Since it was in linux-next, it won't even be able to do fix bisection.
> >> > So the bug will be open forever otherwise.
>
> >> Bug was fixed (commit was simply dropped).  How can I tell syzbot to
> >> shut up
> >> and to resolve the issue?
>
> > Hi Roman,
>
> > The docs are at:
>
> >> See https://goo.gl/tpsmEJ for more information about syzbot.
>
> > There is no official support for bugs fixed not by commit merges.
> > Linux-next creates various interesting corner-cases for the process.
> > Let's go with this option for now:
>
> > #syz invalid
>
> I see the command but can't find the corresponding bug.
> Please resend the email to syzbot+HASH@...kaller.appspotmail.com address
> that is the sender of the bug report (also present in the Reported-by tag).

+syzbot email

Please don't drop bug reporter email from CC.