From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ivan Shapovalov Subject: Re: reiser4: BUG during a backup (sequentially reading the whole fs) on 4.9 Date: Thu, 01 Jun 2017 20:46:15 +0300 Message-ID: <1496339175.12062.1.camel@intelfx.name> References: <1488211296.5395.2.camel@intelfx.name> <1488212421.5395.3.camel@intelfx.name> <4a88640c-8d98-1cc0-5713-3abd76abf208@gmail.com> <1496328566.8314.2.camel@intelfx.name> <290631df-dc46-e8ef-041f-c353b7eecf88@gmail.com> Reply-To: intelfx@intelfx.name Mime-Version: 1.0 Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-igwIegLDa+uHATT/VdVO" Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intelfx.name; s=google; h=message-id:subject:from:reply-to:to:date:in-reply-to:references :mime-version; bh=aWpZp5+zYeTXvMgPiEtSgdvcsKXa3thHjZISHNb9WB4=; b=gcDm2THKOfq4X4ezDfotzJdSwzDyF2XgcGvvuIDDbHmULsyg3eTrKc44SCFo/p2xD4 3Gg4o9YKKoPAD2cOOf8J7wWUx5cA3UfiIWewLNmzOfmcRIglZh5vRc5rXYwFQFzm0ukX xPywawUbcX6UAWTmSId+KbH1E9rreaoeVQpPw= In-Reply-To: <290631df-dc46-e8ef-041f-c353b7eecf88@gmail.com> Sender: reiserfs-devel-owner@vger.kernel.org List-ID: To: Edward Shishkin , Reiserfs development mailing list --=-igwIegLDa+uHATT/VdVO Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Yes, it is reproducible each time when I backup to an empty repo without checkpoints (so that borg has to fully read all files). The filesystem is consistent by fsck. --=20 Ivan Shapovalov / intelfx / On 2017-06-01 at 19:43 +0200, Edward Shishkin wrote: > So, fsck reports no problems? > How frequently does it happen? On every attempt to backup? >=20 > On 06/01/2017 04:49 PM, Ivan Shapovalov wrote: > > Hello, > >=20 > > I'm sorry for the long delay -- was too busy with the university > > and > > other things... So, yes, this still happens on 4.11 with latest git > > master (+ trivial porting), which contains this commit. > >=20 > > The oops: > >=20 > > Jun 01 17:39:15 intelfx-laptop kernel: BUG: unable to handle kernel > > NULL pointer dereference at 0000000000000010 > > Jun 01 17:39:15 intelfx-laptop kernel: IP: internal_at+0x1/0x30 > > [reiser4] > > Jun 01 17:39:16 intelfx-laptop kernel: PGD 1337cb067 > > Jun 01 17:39:16 intelfx-laptop kernel: PUD 104b06067 > > Jun 01 17:39:16 intelfx-laptop kernel: PMD 0 > > Jun 01 17:39:16 intelfx-laptop kernel: > > Jun 01 17:39:16 intelfx-laptop kernel: Oops: 0000 [#1] PREEMPT SMP > > Jun 01 17:39:16 intelfx-laptop kernel: Modules linked in: bnep > > nls_iso8859_1 nls_cp437 vfat fat ext4 jbd2 mbcache acpi_call(O) > > fuse ctr ccm uas btusb btintel bluetooth crc16 uvcvideo > > videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videob > > Jun 01 17:39:16 intelfx-laptop kernel: tpm_tis_core tpm evdev > > tcp_yeah tcp_vegas sch_fq_codel vboxnetflt(O) vboxnetadp(O) > > vboxpci(O) vboxdrv(O) usbserial usbip_host usbip_core sg efivarfs > > ip_tables x_tables ipv6 autofs4 reiser4 sd_mod hid > > Jun 01 17:39:16 intelfx-laptop kernel: CPU: 0 PID: 6560 Comm: borg > > Tainted: G O 4.11.0-pf4-intelfx-00156-g49494524ad71- > > dirty #1 > > Jun 01 17:39:16 intelfx-laptop kernel: Hardware name: LENOVO > > 20BEA008RT/20BEA008RT, BIOS GMET75WW (2.23 ) 03/16/2016 > > Jun 01 17:39:16 intelfx-laptop kernel: task: ffff890e891f5400 > > task.stack: ffff9cc04c744000 > > Jun 01 17:39:16 intelfx-laptop kernel: RIP: > > 0010:internal_at+0x1/0x30 [reiser4] > > Jun 01 17:39:16 intelfx-laptop kernel: RSP: 0018:ffff9cc04c747978 > > EFLAGS: 00010246 > > Jun 01 17:39:16 intelfx-laptop kernel: RAX: 00000000000003a8 RBX: > > ffff9cc04c7479d0 RCX: ffffffffc06ea980 > > Jun 01 17:39:16 intelfx-laptop kernel: RDX: ffff8910adafe3c0 RSI: > > ffff9cc04c7479d0 RDI: 0000000000000000 > > Jun 01 17:39:16 intelfx-laptop kernel: RBP: ffff8910adafe3c0 R08: > > 0000000000010000 R09: 0000000000000000 > > Jun 01 17:39:16 intelfx-laptop kernel: R10: ffffffffc06c6080 R11: > > 0000000000000020 R12: ffff9cc04c747b10 > > Jun 01 17:39:16 intelfx-laptop kernel: R13: 0000000000000001 R14: > > ffff9cc04c7479d0 R15: 0000000000000000 > > Jun 01 17:39:16 intelfx-laptop kernel: FS: 00007faba5bbe4c0(0000) > > GS:ffff8910be200000(0000) knlGS:0000000000000000 > > Jun 01 17:39:16 intelfx-laptop kernel: CS: 0010 DS: 0000 ES: 0000 > > CR0: 0000000080050033 > > Jun 01 17:39:16 intelfx-laptop kernel: CR2: 0000000000000010 CR3: > > 00000001dd136000 CR4: 00000000001406f0 > > Jun 01 17:39:16 intelfx-laptop kernel: Call Trace: > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > has_pointer_to_internal+0x9/0x20 [reiser4] > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > find_disk_cluster+0x185/0x390 [reiser4] > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > key_by_inode_cryptcompress+0x70/0x70 [reiser4] > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > do_readpage_ctail+0x25d/0x4e0 [reiser4] > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > ctail_readpages_filler+0x196/0x260 [reiser4] > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > read_cache_pages+0xb7/0x190 > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > do_readpage_ctail+0x4e0/0x4e0 [reiser4] > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > readpages_ctail+0x13f/0x330 [reiser4] > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > readpages_cryptcompress+0x34/0x60 [reiser4] > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > __do_page_cache_readahead+0x1de/0x2c0 > > Jun 01 17:39:16 intelfx-laptop kernel: ? dput.part.6+0x2c/0x240 > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > ondemand_readahead+0x11b/0x2d0 > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > ondemand_readahead+0x11b/0x2d0 > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > pagecache_get_page+0x2b/0x290 > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > generic_file_read_iter+0x5bb/0x820 > > Jun 01 17:39:16 intelfx-laptop kernel: ? __vfs_getxattr+0x25/0x70 > > Jun 01 17:39:16 intelfx-laptop kernel: ? new_sync_read+0xd2/0x120 > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > read_cryptcompress+0x5c/0xa0 [reiser4] > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > reiser4_read_dispatch+0x54/0x130 [reiser4] > > Jun 01 17:39:16 intelfx-laptop kernel: ? vfs_read+0x85/0x150 > > Jun 01 17:39:16 intelfx-laptop kernel: ? SyS_read+0x4d/0xc0 > > Jun 01 17:39:16 intelfx-laptop kernel: ? SyS_ioctl+0x36/0x70 > > Jun 01 17:39:16 intelfx-laptop kernel: ? > > entry_SYSCALL_64_fastpath+0x13/0x94 > > Jun 01 17:39:16 intelfx-laptop kernel: Code: 68 53 5b 6e c0 bb fb > > ff ff ff e8 ed be a4 eb 48 83 c4 18 eb 9e 0f 1f 44 00 00 41 b8 01 > > 00 00 00 31 c9 48 89 f2 e9 d0 eb fc ff 53 <83> 7f 10 ff 48 89 fb 74 > > 09 48 89 df 5b e9 2d 7d 00 00 e8 08 7d > > Jun 01 17:39:16 intelfx-laptop kernel: RIP: internal_at+0x1/0x30 > > [reiser4] RSP: ffff9cc04c747978 > > Jun 01 17:39:16 intelfx-laptop kernel: CR2: 0000000000000010 > > Jun 01 17:39:16 intelfx-laptop kernel: ---[ end trace > > 552a3368efb88951 ]--- > >=20 > > Not quite sure where to look for the problem... If you are too busy > > right now, then I'd appreciate at least some pointers. > >=20 > > -- > > Ivan Shapovalov / intelfx / > >=20 > > On 2017-02-27 at 17:30 +0100, Edward Shishkin wrote: > > > Please, check your partition with fsck (repair if damaged). > > > Then build the kernel with the following patch applied: > > > 9eca07b7b992724446d5e7327c86bb0bf1f20a41 > > > Let me know, if the oops appears again. > > >=20 > > > Thanks, > > > Edward. >=20 >=20 --=-igwIegLDa+uHATT/VdVO Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE5N8nvImcx2nJlFGce94XyOTjDp0FAlkwUucACgkQe94XyOTj Dp12fg//c5Tg6reWC9GeFv+OjSpu4jHYbU7z109wPV2SCD8TqHhUFLqVzh+e860R Omb0QUkC4JAqADJ1RnaAa/5s00YTx4ys24FEKxShrJZMO3oOa8Omddk37JBiwEme 5ZI0VIt731FNB5K6XVGc0tE0xSALdq8ROI7emXrcYfjCZL0BN6q8F+AuBUL7tim2 pm8ZMHwLOevJcSq5AvgIwGwK4lG4CZ4+pi2e4YQyNCGvOjTEHIC/cIoKeeNY+tve sMjruaNMg/ZD81p++f27wRbkOfPOWtX/lJuKI0n77Uy2xJw0kk52N5SHXKV/g3zk 0JMGWLxekTom0v8Tu6WeUz07V7j4k4siQxY/oJ0leZsG+lbWpncfLRXkLdbPE8I7 6pXoAFEOPO75e8rwlaEMHjqgrOFOs6Lfgy7/aJmNeb61CiCCt+ljNh/ZvXyBVRYu W5iDAw13JBYJBAqcUjTIZyecA+fjhk/zP1vhBInim6vvrkQOWoulDpAhaogSj0UD HgA2xEiIwLtA2yGkibO/8iu/JmaKAuC67Za1DycATcpbgkuo3V//wvsXfb9lbe5D fopifVQpFOvIg1h1D5kBSzEphACYYI7r0Luz3m74oeXFsiu6jnCdloAXX+vyrecE 5TzCB45BnsPi2rkscH9AIHMmZFXJKeYjeTGYng9zfz8PCItO7Wc= =2pT6 -----END PGP SIGNATURE----- --=-igwIegLDa+uHATT/VdVO--