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From: Greg KH <gregkh@linuxfoundation.org>
To: syzbot 
	<bot+9f03168400f56df89dbc6f1751f4458fe739ff29@syzkaller.appspotmail.com>
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: WARNING in sysfs_remove_group
Date: Fri, 27 Oct 2017 10:43:37 +0200	[thread overview]
Message-ID: <20171027084337.GA25695@kroah.com> (raw)
In-Reply-To: <001a113ed2fa7bedfe055c8316a5@google.com>

On Fri, Oct 27, 2017 at 01:29:31AM -0700, syzbot wrote:
> Hello,
> 
> syzkaller hit the following crash on
> 4ed590271a65b0fbe3eb1cf828ad5af16603c8ce
> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/master
> compiler: gcc (GCC) 7.1.1 20170620
> .config is attached
> Raw console output is attached.
> 
> 
> 
> 
> sysfs group 'loop' not found for kobject 'loop1'
> ------------[ cut here ]------------
> WARNING: CPU: 0 PID: 21947 at fs/sysfs/group.c:237
> sysfs_remove_group+0x156/0x1a0 fs/sysfs/group.c:235
> Kernel panic - not syncing: panic_on_warn set ...

It's a warning that someone did something wrong with their code, any
hint as to how you are triggering this?

thanks,

greg k-h

       reply	other threads:[~2017-10-27  8:43 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <001a113ed2fa7bedfe055c8316a5@google.com>
2017-10-27  8:43 ` Greg KH [this message]
2017-10-27  9:10   ` Dmitry Vyukov
2017-10-27  9:23     ` Greg KH
2017-10-27  9:30       ` Dmitry Vyukov
2017-12-23 20:50 ` syzbot
2018-05-02 14:11   ` Tetsuo Handa
2018-05-02 14:24     ` Greg KH

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