From: Kent Overstreet <kent.overstreet@linux.dev>
To: Aleksandr Nogikh <nogikh@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>,
syzkaller@googlegroups.com,
Thomas Bertschinger <tahbertschinger@gmail.com>,
Ariel Miculas <ariel.miculas@gmail.com>,
linux-bcachefs@vger.kernel.org
Subject: Re: syzbot for bcachefs?
Date: Fri, 3 May 2024 13:18:17 -0400 [thread overview]
Message-ID: <2uq2qtikasllo4tfonsyw7q5rrompy7rhw54j3dqezwpfrq4n2@6vaec54ocj3p> (raw)
In-Reply-To: <CANp29Y70mqP+4m_OmwORqKVk1hDHBwiZSvV43=nABa9pjMp7dA@mail.gmail.com>
On Fri, May 03, 2024 at 06:31:30PM +0200, Aleksandr Nogikh wrote:
> On Fri, May 3, 2024 at 5:36 PM Kent Overstreet
> <kent.overstreet@linux.dev> wrote:
> >
> > On Thu, May 02, 2024 at 10:28:42PM +0200, Aleksandr Nogikh wrote:
> > >
> > > I think the problem was that I was trying to save the generated files
> > > to a 9p filesystem (so that I could easily take them out of my VM).
> > > But now I've set up a proper userspace image with the latest 6.9 RC
> > > kernel and it worked fine.
> > >
> > > >
> > > > > Also what would be a good sets of options to generate seed images?
> > > > > We try to "sample" space of different images to create seeds. To give
> > > > > you an idea here is what we do for other file systems:
> > > > > https://github.com/google/syzkaller/blob/af24b0505c748561efb50f1d03c824d6642f6c0b/tools/syz-imagegen/imagegen.go#L60-L516
> > > >
> > > > --encrypted --no_passphrase
> > > > --compression=lz4
> > > > --no-checksum
> > >
> > > The mkfs.bcachefs tool that I installed does not know the
> > > --no-checksum flag, so I used --data_checksum=none
> > > --metadata_checksum=none instead. Does it mean the same thing?
> >
> > That's the correct flags, I did a brainfart on that one :)
>
> Cool :)
> I've deployed the changes to syzbot today and it has already reported
> 8 findings:
> https://syzkaller.appspot.com/upstream/s/bcachefs
Nice, already got fixes pushed for most of them :)
prev parent reply other threads:[~2024-05-03 17:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <oxdwygzxpbpwxgl5v5hzaj7er6oxt2rlmaobkov4t23xqptqrn@gxi3nlapfini>
[not found] ` <CACT4Y+ZEPWbJsYvWauog95yRFuzZmA=tK-uS+aDT-x=jnc3f7Q@mail.gmail.com>
2024-04-04 23:16 ` syzbot for bcachefs? Kent Overstreet
2024-04-05 16:20 ` Aleksandr Nogikh
2024-04-19 8:35 ` Dmitry Vyukov
2024-04-19 17:19 ` Kent Overstreet
2024-05-02 20:28 ` Aleksandr Nogikh
2024-05-03 15:36 ` Kent Overstreet
2024-05-03 16:31 ` Aleksandr Nogikh
2024-05-03 17:18 ` Kent Overstreet [this message]
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