Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754636AbbESH4C (ORCPT ); Tue, 19 May 2015 03:56:02 -0400 Received: from mout.gmx.net ([212.227.15.19]:58151 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753789AbbESHz7 (ORCPT ); Tue, 19 May 2015 03:55:59 -0400 Date: Tue, 19 May 2015 13:25:49 +0530 (IST) From: Govindarajulu Varadarajan <_govind@gmx.com> X-X-Sender: gvaradar@ws.cisco To: linux-btrfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org cc: clm@fb.com, jbacik@fb.com, dsterba@suse.cz Subject: btrfs: kernel BUG at mm/page-writeback.c:2286! Message-ID: User-Agent: Alpine 2.03 (LNX 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII X-Provags-ID: V03:K0:e2EF4rpMi3qxoAV88sPZ//5xBDjhXJBFqgerkPNzW6bMc5gAeMU C1K67lbUjap7b/D/CYYEG9CcMeaL7bytd/ND10Ilnezl9vVLCqtzOyR7ffMddRWYmDBhsOY 7GTfh1feT7qaWmEV9hrf0ubRq+3x4fErMTv8oRkSnv1qBaElTysipkp+27F05Kf5Kacugdh pOez/u6vKzgyQZSChIuDw== X-UI-Out-Filterresults: notjunk:1; Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7012 Lines: 114 Hi all I am seeing the following crash on my btrfs filesystem with nfs export. If I disable the nfs share and reboot, I do not hit the crash. Look like the crash happens on btrfs with nfs export. Is this a known issue? Has anyone else faced this? Let me know if you need more information. Thanks mm/page-writeback.c:2286: int clear_page_dirty_for_io(struct page *page) { struct address_space *mapping = page_mapping(page); 2286--->BUG_ON(!PageLocked(page)); [ 166.769868] BTRFS info (device sdf): no csum found for inode 1154 start 43192320 [ 166.774334] BTRFS info (device sdf): csum failed ino 1154 extent 4434247680 csum 1388825687 wanted 0 mirror 0 [ 166.774453] ------------[ cut here ]------------ [ 166.774481] kernel BUG at mm/page-writeback.c:2286! [ 166.774495] invalid opcode: 0000 [#1] PREEMPT SMP [ 166.774514] Modules linked in: nfsv3 target_core_user uio target_core_pscsi target_core_file target_core_iblock iscsi_target_mod target_core_mod rpcsec_gss_krb5 nfsv4 dns_resolver coretemp intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 iTCO_wdt lrw joydev gf128mul mgag200 glue_helper ablk_helper mousedev evdev pcspkr iTCO_vendor_support cryptd ttm drm_kms_helper drm syscopyarea sysfillrect mac_hid sysimgblt i2c_i801 lpc_ich acpi_power_meter tpm_tis sb_edac edac_core wmi shpchp processor ipmi_si ipmi_msghandler tpm ac button sch_fq_codel ses enclosure sd_mod hid_generic usbhid hid ehci_pci ehci_hcd megaraid_sas scsi_mod usbcore usb_common nfsd auth_rpcgss oid_registry nfs_acl nfs lockd grace sunrpc fscache [ 166.774801] igb hwmon ptp pps_core i2c_algo_bit i2c_core dca ext4 crc16 mbcache jbd2 crc32c_generic crc32c_intel btrfs xor raid6_pq [ 166.774852] CPU: 4 PID: 806 Comm: nfsd Not tainted 4.1.0-rc3-ARCH-00165-g110bc76 #4 [ 166.774873] Hardware name: Cisco Systems Inc UCSC-C240-M3S/UCSC-C240-M3S, BIOS C240M3.1.5.1c.0.013120130509 01/31/2013 [ 166.774901] task: ffff88183796c980 ti: ffff881839034000 task.ti: ffff881839034000 [ 166.774922] RIP: 0010:[] [] clear_page_dirty_for_io+0xd0/0xf0 [ 166.774950] RSP: 0018:ffff881839037908 EFLAGS: 00010246 [ 166.774965] RAX: 02fffe0000000806 RBX: ffffea0030ffd680 RCX: 0000000000000484 [ 166.774985] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0030ffd680 [ 166.775004] RBP: ffff881839037918 R08: 000000000001ff40 R09: ffff880c474e8600 [ 166.775023] R10: ffff880c4fb1ff40 R11: ffffea00311943c0 R12: ffff880c44210300 [ 166.775042] R13: 0000000000000001 R14: ffff880c48355b40 R15: 0000000000000000 [ 166.775062] FS: 0000000000000000(0000) GS:ffff880c4fb00000(0000) knlGS:0000000000000000 [ 166.775083] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 166.775099] CR2: 00007fcfe214e0a0 CR3: 000000000173f000 CR4: 00000000000407e0 [ 166.775118] Stack: [ 166.775125] 0000000000000001 ffff880c48355b40 ffff881839037988 ffffffffa0073d32 [ 166.775150] ffff881839037a10 0000000000000050 0000000000001000 ffff880c442101b0 [ 166.775174] ffff880c44210040 ffff881839037a20 ffff880c4937ee40 0000000000000001 [ 166.775198] Call Trace: [ 166.775220] [] lock_and_cleanup_extent_if_need+0x72/0x1f0 [btrfs] [ 166.775248] [] __btrfs_buffered_write+0x1b1/0x680 [btrfs] [ 166.775273] [] btrfs_file_write_iter+0x162/0x5a0 [btrfs] [ 166.775295] [] do_iter_readv_writev+0x6c/0xb0 [ 166.775312] [] do_readv_writev+0x13b/0x280 [ 166.775334] [] ? btrfs_sync_file+0x380/0x380 [btrfs] [ 166.775354] [] ? inode_to_bdi+0x27/0x60 [ 166.775371] [] ? finish_no_open+0x20/0x20 [ 166.775388] [] ? file_ra_state_init+0x19/0x30 [ 166.775405] [] ? do_dentry_open+0x230/0x320 [ 166.775422] [] vfs_writev+0x39/0x50 [ 166.775443] [] nfsd_vfs_write.isra.15+0xb8/0x380 [nfsd] [ 166.775467] [] nfsd_write+0xec/0x100 [nfsd] [ 166.775487] [] nfsd3_proc_write+0xbb/0x160 [nfsd] [ 166.776205] [] nfsd_dispatch+0xc3/0x220 [nfsd] [ 166.776922] [] ? svc_tcp_adjust_wspace+0x12/0x30 [sunrpc] [ 166.777639] [] svc_process_common+0x45c/0x680 [sunrpc] [ 166.778371] [] svc_process+0x113/0x200 [sunrpc] [ 166.779087] [] nfsd+0x107/0x170 [nfsd] [ 166.779765] [] ? nfsd_destroy+0x80/0x80 [nfsd] [ 166.780465] [] kthread+0xd8/0xf0 [ 166.781137] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 166.781799] [] ret_from_fork+0x42/0x70 [ 166.782443] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 166.783072] Code: 41 5c 5d c3 0f 1f 80 00 00 00 00 48 89 df e8 f8 0d 03 00 85 c0 75 1c f0 0f ba 33 04 72 85 31 c0 e9 75 ff ff ff 66 0f 1f 44 00 00 <0f> 0b 66 0f 1f 44 00 00 48 89 df e8 60 fe ff ff eb da 66 66 66 [ 166.784408] RIP [] clear_page_dirty_for_io+0xd0/0xf0 [ 166.785026] RSP [ 166.785630] ---[ end trace c20a91c708e09203 ]--- [root@stg ~]#btrfs fi sh Label: 'stg' uuid: dd10b751-d2aa-40d1-971f-e15b0062dd11 Total devices 14 FS bytes used 101.80GiB devid 1 size 278.46GiB used 9.47GiB path /dev/sdb devid 2 size 278.46GiB used 9.47GiB path /dev/sdc devid 3 size 278.46GiB used 9.47GiB path /dev/sdd devid 4 size 278.46GiB used 9.47GiB path /dev/sde devid 5 size 278.46GiB used 9.47GiB path /dev/sdf devid 6 size 278.46GiB used 9.47GiB path /dev/sdg devid 7 size 278.46GiB used 9.47GiB path /dev/sdh devid 8 size 278.46GiB used 9.47GiB path /dev/sdi devid 9 size 278.46GiB used 9.47GiB path /dev/sdj devid 10 size 278.46GiB used 9.47GiB path /dev/sdk devid 11 size 278.46GiB used 9.47GiB path /dev/sdl devid 12 size 278.46GiB used 9.47GiB path /dev/sdm devid 13 size 278.46GiB used 9.47GiB path /dev/sdn devid 14 size 278.46GiB used 9.47GiB path /dev/sdo btrfs-progs v4.0 [root@stg ~]#btrfs fi df /mnt/stg Data, RAID5: total=121.88GiB, used=101.64GiB System, RAID5: total=208.00MiB, used=16.00KiB Metadata, RAID5: total=1.02GiB, used=163.70MiB GlobalReserve, single: total=64.00MiB, used=0.00B [root@stg ~]#btrfs scru status /mnt/stg scrub status for dd10b751-d2aa-40d1-971f-e15b0062dd11 scrub started at Tue May 19 03:33:26 2015 and finished after 468 seconds total bytes scrubbed: 101.80GiB with 0 errors [root@stg ~]#cat /etc/exports /mnt/stg *(rw,no_root_squash,no_subtree_check,fsid=0,sync) /var/cache/pacman/pkg/ *(rw,no_root_squash,no_subtree_check,fsid=0,sync) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/