From: Dmitry Vyukov <dvyukov@google.com>
To: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: "Oliver Neukum" <oneukum@suse.de>,
syzbot <syzbot+854768b99f19e89d7f81@syzkaller.appspotmail.com>,
"Andrey Konovalov" <andreyknvl@google.com>,
"Jia-Ju Bai" <baijiaju1990@gmail.com>,
"Sebastian Andrzej Siewior" <bigeasy@linutronix.de>,
"Colin King" <colin.king@canonical.com>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
LKML <linux-kernel@vger.kernel.org>,
"USB list" <linux-usb@vger.kernel.org>,
syzkaller-bugs <syzkaller-bugs@googlegroups.com>,
yuehaibing@huawei.com, "Bjørn Mork" <bjorn@mork.no>
Subject: Re: INFO: task hung in wdm_flush
Date: Mon, 10 Feb 2020 16:06:39 +0100 [thread overview]
Message-ID: <CACT4Y+ZaNNAiRvKCMJ9t4H+H23OcjSd5haAcXkG68L8F6Mq6Wg@mail.gmail.com> (raw)
In-Reply-To: <CACT4Y+bDNjj_RGLtvRCaV3k9+QX4eENyKyWWAbsHcbwR7CDrWQ@mail.gmail.com>
> On Mon, Feb 10, 2020 at 4:03 PM Tetsuo Handa
> <penguin-kernel@i-love.sakura.ne.jp> wrote:
> >
> > On 2020/02/10 21:46, Tetsuo Handa wrote:
> > > On 2020/02/10 19:09, Dmitry Vyukov wrote:
> > >> You may also try on the exact commit the bug was reported, because
> > >> usb-fuzzer is tracking branch, things may change there.
> > >
> > > OK. I explicitly tried
> > >
> > > #syz test: https://github.com/google/kasan.git e5cd56e94edde38ca4dafae5a450c5a16b8a5f23
> > >
> > > but syzbot still cannot reproduce this bug using the reproducer...
> >
> > It seems that there is non-trivial difference between kernel config in dashboard
> > and kernel config in "syz test:" mails. Maybe that's the cause...
syzkaller runs oldconfig when building any kernels:
https://github.com/google/syzkaller/blob/master/pkg/build/linux.go#L56
Is that difference what oldconfig produces?
next prev parent reply other threads:[~2020-02-10 15:06 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-12 12:18 INFO: task hung in wdm_flush syzbot
2019-11-19 9:14 ` Bjørn Mork
2019-11-19 10:31 ` Oliver Neukum
2019-11-19 11:34 ` Bjørn Mork
2019-11-23 6:52 ` Dmitry Vyukov
2020-02-10 10:06 ` Dmitry Vyukov
2020-02-10 10:09 ` Dmitry Vyukov
2020-02-10 12:46 ` Tetsuo Handa
2020-02-10 15:04 ` Dmitry Vyukov
2020-02-10 15:06 ` Dmitry Vyukov [this message]
2020-02-10 15:21 ` Tetsuo Handa
2020-02-11 13:55 ` Tetsuo Handa
2020-02-11 14:11 ` Dmitry Vyukov
2020-02-11 14:01 ` Dmitry Vyukov
2019-11-19 13:21 Oliver Neukum
2019-11-20 22:40 ` syzbot
2019-11-21 11:07 ` Oliver Neukum
2019-11-22 9:11 ` Dmitry Vyukov
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