From: Julia Lawall <julia.lawall@lip6.fr>
To: Pavel Machek <pavel@ucw.cz>
Cc: syzbot <syzbot+e1a4f80c370d2381e49f@syzkaller.appspotmail.com>,
Julia.Lawall@lip6.fr, bp@alien8.de, dan.j.williams@intel.com,
dave.hansen@linux.intel.com, dave.jiang@intel.com,
haozhong.zhang@intel.com, hpa@zytor.com,
jacek.anaszewski@gmail.com, linux-kernel@vger.kernel.org,
linux-leds@vger.kernel.org, luto@kernel.org, mingo@redhat.com,
pbonzini@redhat.com, peterz@infradead.org, rkrcmar@redhat.com,
rpurdie@rpsys.net, syzkaller-bugs@googlegroups.com,
tglx@linutronix.de, x86@kernel.org
Subject: Re: WARNING in untrack_pfn
Date: Fri, 12 Apr 2019 15:21:42 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.20.1904121520350.22857@hadrien> (raw)
In-Reply-To: <20190412130112.GA8384@amd>
On Fri, 12 Apr 2019, Pavel Machek wrote:
> On Fri 2019-04-12 04:42:01, syzbot wrote:
> > syzbot has bisected this bug to:
> >
> > commit c68729119f4d2993bec3c9cb999ad76de5aeddba
> > Author: Julia Lawall <Julia.Lawall@lip6.fr>
> > Date: Sat Jul 15 09:58:19 2017 +0000
> >
> > leds: tlc591xx: add missing of_node_put
> >
> > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12cda0f3200000
> > start commit: 23203e3f Merge branch 'akpm' (patches from Andrew)
> > git tree: upstream
> > final crash: https://syzkaller.appspot.com/x/report.txt?x=11cda0f3200000
> > console output: https://syzkaller.appspot.com/x/log.txt?x=16cda0f3200000
> > kernel config: https://syzkaller.appspot.com/x/.config?x=861a3573f4e78ba1
> > dashboard link: https://syzkaller.appspot.com/bug?extid=e1a4f80c370d2381e49f
> > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17836d15400000
> >
> > Reported-by: syzbot+e1a4f80c370d2381e49f@syzkaller.appspotmail.com
> > Fixes: c68729119f4d ("leds: tlc591xx: add missing of_node_put")
> >
> > For information about bisection process see: https://goo.gl/tpsmEJ#bisection
>
> Can you revert c68729119f4d2993bec3c9cb999ad76de5aeddba on master and
> see if it fixes the problem? Because this is hard to believe...
Likewise, it seems hard to believe that the change is a problem. But
could the problem be elsewhere and triggered by this code?
julia
>
> Pavel
>
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
>
next prev parent reply other threads:[~2019-04-12 13:21 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <000000000000f70a0e0571ad8ffb@google.com>
2019-04-12 11:42 ` WARNING in untrack_pfn syzbot
2019-04-12 13:01 ` Pavel Machek
2019-04-12 13:21 ` Julia Lawall [this message]
2019-05-08 12:37 ` Dmitry Vyukov
2019-08-13 10:56 ` syzbot
2019-08-13 11:31 ` Pavel Machek
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