From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from nala.villavu.com ([188.165.243.101]:49437 "EHLO nala.villavu.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750930AbbEBQmv (ORCPT ); Sat, 2 May 2015 12:42:51 -0400 Received: from a82-161-36-93.adsl.xs4all.nl ([82.161.36.93] helo=[192.168.178.31]) by nala.villavu.com with esmtpsa (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.80.1) (envelope-from ) id 1YoaA6-0004qa-4A for linux-btrfs@vger.kernel.org; Sat, 02 May 2015 18:21:06 +0200 Message-ID: <5544F965.9040703@wizzup.org> Date: Sat, 02 May 2015 18:20:53 +0200 From: Merlijn Wajer MIME-Version: 1.0 To: linux-btrfs@vger.kernel.org Subject: Linux v4.1-rc1: Unable to handle kernel NULL pointer dereference Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="aJXtVc35olaPeKQpsBOND93anCFB9Xxwr" Sender: linux-btrfs-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --aJXtVc35olaPeKQpsBOND93anCFB9Xxwr Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi, btrfs fails to work on my rootfs, with a NULL pointer dereference: http://sprunge.us/aIWe resulting in a panic on boot. This has also been happening with linux-next-2015042* at least. It works on 3.8 and 3.18 kernels. The reason the FS is mounted rather late is because I drop to a shell from inside my initramfs and then mount it manually to get a trace; the rootfs is encrypted. Initially mounting the btrfs seems to work, but when actually accessing content it fails. My kernel is "dirty" because I applied a single line patch to my device tree (ARM device): I have no local btrfs changes. Cheers, Merlijn --aJXtVc35olaPeKQpsBOND93anCFB9Xxwr Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBAgAGBQJVRPlrAAoJEFgU4HQpHjKDzLIP/2piKI6ZpKPR5FN6NGpsv9wm VJVZMT3e6UNUXHmpRcC8kkC6sOEv+opdT3Zg+zMiSR1ARq+oVk0xwbR32AEPVWlD HZCv1mNZEoLXv8e5xpIq8oE+kqodzwqL4fG3OwZo+Qcjs18NubM1LchLycOm2Vq9 axScYAi1jTAuFpKPUnxC9D38+8NI092F8I9+BkWH7+N5Ye/tIBqejqhxeEUTP4LC b+FlQhTASDdFfnFCHIYjkxGtgYJ85oFfWb57k9tvGy+fQTRT1dbXhBfykiuCB1oh IPCuX0lvuE7LZBGE3ntHZTlMQ5OqxvRghsf8CWcoGtlHxXv/L9kpjjFR9Youn16l 7Gi1BJRnhpgOP6CAUAvxPwWpj6yLFm8+pciScNJlfAqad9ox6enoCNpJnis3KOs7 1Ej2czi1TcZtVhdW7Uky0xSRXzH+x8ydmRrPsaJrk7LuzBG7lCMDEQkB6AqsTcEv uRddvPbGFekTAsnwuM6+rowr7r83gz+blDcgWKW2WRf6wuwjq2MdvWuoBhH4+Hbd O4JplovBlKdgGfXeEBKQnqIVRz7s3PqAcQYQW+FVqYsTjVwmb6qaPhiMNAWXF0OZ iqeq+qUIonYJb/68p3PBHVIjQttaPGd0sUBzR5CXxveO905JfFU6pwP6mtmlG4WV L7rhqqXF1xx0B0sMmpqd =Kobz -----END PGP SIGNATURE----- --aJXtVc35olaPeKQpsBOND93anCFB9Xxwr--