From: Andy Lutomirski <luto@kernel.org>
To: syzbot <syzbot+6b074f741adbd93d2df5@syzkaller.appspotmail.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Arnd Bergmann <arnd@arndb.de>, Jonathan Corbet <corbet@lwn.net>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Kees Cook <keescook@chromium.org>,
"open list:DOCUMENTATION" <linux-doc@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>,
Dominik Brodowski <linux@dominikbrodowski.net>,
Andrew Lutomirski <luto@kernel.org>,
"Luis R. Rodriguez" <mcgrof@kernel.org>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Sudip Mukherjee <sudipm.mukherjee@gmail.com>,
syzkaller-bugs@googlegroups.com,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: INFO: task hung in __do_page_fault (2)
Date: Thu, 21 Nov 2019 10:01:24 -0800 [thread overview]
Message-ID: <CALCETrVfWHPHiOmyJ9iDJDiCD3idPA4BdeM=4FUEO-uuxM07_g@mail.gmail.com> (raw)
In-Reply-To: <000000000000a6993c0597cc8375@google.com>
On Wed, Nov 20, 2019 at 11:52 AM syzbot
<syzbot+6b074f741adbd93d2df5@syzkaller.appspotmail.com> wrote:
>
> syzbot has bisected this bug to:
>
> commit 0161028b7c8aebef64194d3d73e43bc3b53b5c66
> Author: Andy Lutomirski <luto@kernel.org>
> Date: Mon May 9 22:48:51 2016 +0000
>
> perf/core: Change the default paranoia level to 2
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15910e86e00000
> start commit: 18d0eae3 Merge tag 'char-misc-4.20-rc1' of git://git.kerne..
> git tree: upstream
> final crash: https://syzkaller.appspot.com/x/report.txt?x=17910e86e00000
> console output: https://syzkaller.appspot.com/x/log.txt?x=13910e86e00000
> kernel config: https://syzkaller.appspot.com/x/.config?x=342f43de913c81b9
> dashboard link: https://syzkaller.appspot.com/bug?extid=6b074f741adbd93d2df5
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12482713400000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=158fd4a3400000
>
> Reported-by: syzbot+6b074f741adbd93d2df5@syzkaller.appspotmail.com
> Fixes: 0161028b7c8a ("perf/core: Change the default paranoia level to 2")
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
Hi syzbot-
I'm not quite sure how to tell you this in syzbotese, but I'm pretty
sure you've bisected this wrong. The blamed patch makes no sense.
--Andy
next prev parent reply other threads:[~2019-11-21 18:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <0000000000006e31980579315914@google.com>
2019-11-20 19:52 ` INFO: task hung in __do_page_fault (2) syzbot
2019-11-21 18:01 ` Andy Lutomirski [this message]
2019-11-21 20:13 ` Dmitry Vyukov
2019-11-21 21:00 ` Eric W. Biederman
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