From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CC0A9145341 for ; Thu, 29 Aug 2024 06:29:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724912971; cv=none; b=HB/j8QEnuBItyO27CWzSOTwD9SxKWGlXn48mGWzs6pqXBJmZ0LhamSW1pJ45guMtdPWXG3W7sFMr4PHWcZ/ljmbDQGdHAgc6rZtJT152GKSFrQQfeRsndSljASdj8T3WS1SBdQu7pQo4MOi/4PrSGE5+++HZcUNH/D6ioxOJBHo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724912971; c=relaxed/simple; bh=LOWmdAlWScPbeBU/ImaiL422GzBuK7DLt8fMeGU2dzs=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=mfifLF1B69fLhPpJd6/v7ElTsf8Lv60d0hPAqkDsoZWKUcHakjaXqvbVWC2mnT7jCDb+XVx00MzfsgYMjfyxAl9w4MyQGQgE72VWnVejfZSOcEHgAdsNA8Alyz3s1oat77KLcAbwwMOzPh1V0pQ2xyQxTrzlTbEc519dxeH0UZ0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=uYhmDQtx; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="uYhmDQtx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DB7D8C4CEC1; Thu, 29 Aug 2024 06:29:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1724912971; bh=LOWmdAlWScPbeBU/ImaiL422GzBuK7DLt8fMeGU2dzs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=uYhmDQtx+tRD2yBwxwxRwvpDJY/bgtVoypB/GhYsc/+1l7q6zQkw6Ct5wUtFIMQ0L iuUyZ0qBTKBvZqUOHxUKI0T6uMPHDMoB/7d83li9mJpoHBVTP8Q7W1J69rUTm867KS /O/u6wiDxl0GtUF9nxBOh9mjfB5hGSAOgWijcFoE= Date: Thu, 29 Aug 2024 08:29:27 +0200 From: Greg KH To: Xingyu Li Cc: tj@kernel.org, linux-kernel@vger.kernel.org, Yu Hao Subject: Re: BUG: WARNING in __kernfs_remove Message-ID: <2024082917-yield-winnings-31dd@gregkh> References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Wed, Aug 28, 2024 at 03:03:33PM -0700, Xingyu Li wrote: > Hi, > > We found a bug in Linux 6.10 using syzkaller. It is possibly a logic bug. > The bug report is as follows, but unfortunately there is no generated > syzkaller reproducer. A reproducer would be great, otherwise there's not much we can do here, sorry. > > Bug report: > > team0 (unregistering): Port device team_slave_0 removed > netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 > family 0 port 6081 - 0 > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 1090 at fs/kernfs/dir.c:41 So this is a lockdep warning? Patches to resolve issues like this are greatly apprecaited, "raw" syzbot reports are not much good given that we are drowning in them. thanks, greg k-h