From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from zeniv.linux.org.uk (zeniv.linux.org.uk [62.89.141.173]) (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 AE0E91EEFC; Sat, 6 Apr 2024 07:11:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=62.89.141.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712387501; cv=none; b=Loea8vgMEme55srCWRp1AA+ozghxs1Y9qn8tzOm8gZpspeXuFpKVUBPNeyPEv5NtSpNL26CmEEFQA18EwUrBD9AkP4WuY6qK27IZEnHbRJIBFdejRS8c22TQQ1hiOz1Z5AVDreCV56pn0JI0rumM9OcdgtdQIQUhsLzRmHW2QGQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712387501; c=relaxed/simple; bh=va5+nVrH2sTYitIpPwPYUS69H/ywqZioHyWNF/sVd3U=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=pNTm3NI/RNv8DgEr60UTcZDPwvnSR5mMnGJ/2fTQuarf1llf+/1TS1NjGsHzUF1R+XbI/fdMwTRoT48PJGsavobaeMK0RGa5EHqdDmHwy0yO7XSFc4dvkTs57a43kI92cVI1zmhvTLe/U157Du6Rk/O+OviCP9ySMQ1GxwiUeMg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zeniv.linux.org.uk; spf=none smtp.mailfrom=ftp.linux.org.uk; dkim=pass (2048-bit key) header.d=linux.org.uk header.i=@linux.org.uk header.b=Shi0azks; arc=none smtp.client-ip=62.89.141.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zeniv.linux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=ftp.linux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linux.org.uk header.i=@linux.org.uk header.b="Shi0azks" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=linux.org.uk; s=zeniv-20220401; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=GNfNtOBQ9mUCSvC61XgRvWAWZ3dPPmGPMc1/GfjrGTo=; b=Shi0azks95Y038eI3QTH1bmTWb wfIcFskYYx/8HAj5FzEqjL2Jys5VQE4o2zM0NYYgm1aiSFbIlEVmE8e2IviqJvYGy3H5J0MPEAkD7 CC1lF8eIfwScfjmAfv7BNoBTwXUfXXQMSYBiwwfvo1l67C1TbkfDzwfA1Phxr9WnrMypN9aYZ5+g1 haTiSo3BYfaDAZOCnUBj2mrKIDLW173EnzhLBVvMZ0+Uns7uUFrC8M0Ges/7b5QWCSNaeQBL1lcxo +OG9Qx5PQ/RMaWOq3cR7CjtLg6wHH/TtLsVtSn9MU5vKW8los4Dau+/YHwbzhZFFnpkC6uDnfkol8 fkJgdJwA==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.96 #2 (Red Hat Linux)) id 1rt0D4-0070iB-3B; Sat, 06 Apr 2024 07:11:31 +0000 Date: Sat, 6 Apr 2024 08:11:30 +0100 From: Al Viro To: syzbot Cc: amir73il@gmail.com, brauner@kernel.org, gregkh@linuxfoundation.org, hch@lst.de, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, miklos@szeredi.hu, syzkaller-bugs@googlegroups.com, tj@kernel.org, valesini@yandex-team.ru Subject: Re: [syzbot] [kernfs?] possible deadlock in kernfs_fop_llseek Message-ID: <20240406071130.GB538574@ZenIV> References: <000000000000107743061568319c@google.com> Precedence: bulk X-Mailing-List: linux-fsdevel@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: <000000000000107743061568319c@google.com> Sender: Al Viro On Sat, Apr 06, 2024 at 12:05:04AM -0700, syzbot wrote: > commit: 3398bf34 kernfs: annotate different lockdep class for .. > git tree: https://github.com/amir73il/linux/ vfs-fixes > kernel config: https://syzkaller.appspot.com/x/.config?x=c5cda112a8438056 > dashboard link: https://syzkaller.appspot.com/bug?extid=9a5b0ced8b1bfb238b56 > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 > > Note: no patches were applied. How about the same test on 6c6e47d69d821047097909288b6d7f1aafb3b9b1?