From: "Theodore Ts'o" <tytso@mit.edu>
To: Matthew Wilcox <willy@infradead.org>
Cc: kvartet <xyru1999@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
syzkaller-bugs@googlegroups.com, sunhao.th@gmail.com
Subject: Re: INFO: task hung in __filemap_get_folio
Date: Tue, 4 Jan 2022 16:00:30 -0500 [thread overview]
Message-ID: <YdS1bk5txXiJynXV@mit.edu> (raw)
In-Reply-To: <YdSPb5Q6HytIi6w9@casper.infradead.org>
On Tue, Jan 04, 2022 at 06:18:23PM +0000, Matthew Wilcox wrote:
> On Tue, Jan 04, 2022 at 07:44:10PM +0800, kvartet wrote:
> > Hello,
> >
> > When using Syzkaller to fuzz the latest Linux kernel, the following
> > crash was triggered.
>
> This isn't a crash, it's a notification of a hang. More than likely
> syzbot is playing with RT scheduling again.
>
> We do not need more people running syzbot. We need more people tracking
> down and fixing the syzbot reports that already exist.
One of the syzbot spam reported by kvartet was a hang in the jbd2
layer, while it was waiting for processes to complete running handles,
and the oom killer lock was reported as being involved. At which
point, I stopped reading or caring about *any* of the syzbot
complaints being reported by kvartet....
- Ted
prev parent reply other threads:[~2022-01-04 21:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-04 11:44 INFO: task hung in __filemap_get_folio kvartet
2022-01-04 18:18 ` Matthew Wilcox
2022-01-04 21:00 ` Theodore Ts'o [this message]
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