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From: Dmitry Vyukov <dvyukov@google.com>
To: Cyril Hrubis <chrubis@suse.cz>
Cc: George Kennedy <george.kennedy@oracle.com>,
	shuah <shuah@kernel.org>,
	"open list:KERNEL SELFTEST FRAMEWORK" 
	<linux-kselftest@vger.kernel.org>,
	automated-testing@yoctoproject.org, kernelci@groups.io,
	Dhaval Giani <dhaval.giani@gmail.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Jan Setje-Eilers <jan.setjeeilers@oracle.com>,
	syzkaller <syzkaller@googlegroups.com>
Subject: Re: [Automated-testing] syzkaller reproducers
Date: Wed, 23 Oct 2019 15:24:17 +0200	[thread overview]
Message-ID: <CACT4Y+azc_6aoEf4GaVFwwZgLp9QcCk3jJB-spM9s5BUB8Gxqg@mail.gmail.com> (raw)
In-Reply-To: <20191015134407.GA12523@rei.lan>

On Tue, Oct 15, 2019 at 3:44 PM Cyril Hrubis <chrubis@suse.cz> wrote:
>
> Hi!
> > >> I do not think that these scripts are ever supposed to be the used in
> > >> production testing, you need much more than this to produce results
> > >> reliably. I would expect that they are supposed to be a form of very
> > >> minimal documentation.
> > > Yes, I just added them as quick hints: some repros are 32-bits; each
> > > needs a new dir; some external timeout is needed for each test.
> > Thank you again for the collection of repro C programs!
> >
> > Hitting a lot more crashes with the collection of repro C programs than
> > in all the hours of running Syzkaller. Wonder why? Any idea? This is
> > with the same kernel and VM that Syzkaller is run on.
>
> I would guess that these reproducers are product of countless hours of
> fuzzing, so it's about to be expected...


Probably. Hard to say.
If you used KCOV, KCOV_ENABLE_COMPARISONS, KASAN, LOCKDEP,
FAULT_INJECTION, all other debugging configs, compat instance and some
required image/cmdline features, then the only reason for difference
that I see is indeed longer fuzzing time.

  reply	other threads:[~2019-10-23 13:24 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-08 11:46 Dmitry Vyukov
2019-10-08 12:16 ` Dmitry Vyukov
2019-10-08 15:00   ` shuah
2019-10-11 17:38     ` shuah
2019-10-11 18:02       ` [Automated-testing] " Cyril Hrubis
2019-10-11 19:11         ` shuah
2019-10-14  8:54           ` Cyril Hrubis
2019-10-14 11:19             ` Dmitry Vyukov
2019-10-15 13:04               ` George Kennedy
2019-10-15 13:44                 ` Cyril Hrubis
2019-10-23 13:24                   ` Dmitry Vyukov [this message]
2019-12-06 20:06                 ` George Kennedy
2020-01-27 14:19                   ` George Kennedy
2020-01-27 15:26                     ` Dmitry Vyukov
2020-01-27 17:06                       ` George Kennedy
2020-03-03  8:45                         ` Dmitry Vyukov
2020-03-03 13:46                           ` George Kennedy
2020-03-13 15:59                           ` shuah
2019-10-08 16:35   ` George Kennedy
2019-10-08 12:37 ` [Automated-testing] " Richard Palethorpe
2019-10-08 12:53   ` Dmitry Vyukov
2019-10-08 13:14     ` Richard Palethorpe
2019-10-08 13:22       ` Dmitry Vyukov
2019-10-10 14:27 ` Cyril Hrubis
2019-10-10 14:30   ` Dmitry Vyukov

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