I've just seen this with 16.04, together with latest HES 4.8 kernel: uname -a Linux server 4.8.0-51-generic #54~16.04.1-Ubuntu SMP Wed Apr 26 16:00:28 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
That happened during a btrfs-scrub: May 7 02:11:52 server kernel: [17884.471597] [<ffffffffc04cbc73>] wait_current_trans.isra.21+0xd3/0x120 [btrfs] May 7 02:11:52 server kernel: [17884.471617] [<ffffffffc04ce43f>] start_transaction+0x27f/0x4c0 [btrfs] May 7 02:11:52 server kernel: [17884.471635] [<ffffffffc04ce6d7>] btrfs_join_transaction+0x17/0x20 [btrfs] May 7 02:11:52 server kernel: [17884.471654] [<ffffffffc04d4b45>] btrfs_dirty_inode+0x35/0xd0 [btrfs] May 7 02:11:52 server kernel: [17884.471672] [<ffffffffc04da57d>] btrfs_setattr+0x9d/0x330 [btrfs] May 7 02:11:52 server kernel: [17884.471697] INFO: task btrfs:3559 blocked for more than 120 seconds. May 7 02:11:52 server kernel: [17884.471851] btrfs D ffff937fa2257b68 0 3559 3518 0x00000000 May 7 02:11:52 server kernel: [17884.471887] [<ffffffffc04cb862>] wait_for_commit.isra.16+0x52/0xa0 [btrfs] May 7 02:11:52 server kernel: [17884.471909] [<ffffffffc04cc205>] btrfs_wait_for_commit+0x145/0x170 [btrfs] May 7 02:11:52 server kernel: [17884.471935] [<ffffffffc04bb227>] btrfs_inc_block_group_ro+0x67/0x1b0 [btrfs] May 7 02:11:52 server kernel: [17884.471961] [<ffffffffc0532d77>] scrub_enumerate_chunks+0x217/0x670 [btrfs] May 7 02:11:52 server kernel: [17884.471994] [<ffffffffc05344ea>] btrfs_scrub_dev+0x1fa/0x540 [btrfs] May 7 02:11:52 server kernel: [17884.472019] [<ffffffffc050c25c>] btrfs_ioctl+0x1a7c/0x2010 [btrfs] -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1454903 Title: Btrfs Fails to Mount Drive - btrfs-transaction blocked for more than 120 seconds. Status in linux package in Ubuntu: Confirmed Bug description: Call Trace: kernel: ffff880408609800 ffff8803e9cba200 ffff8803d06f7398 ffff8803bc89fe00 kernel: 0000000000014200 ffff88040ce9f5c0 ffff880407f9d850 ffff8803bc89fdd8 kernel: ffff8803bc89fdc8 ffff880407f9d850 0000000000014200 ffff8803bc89ffd8 kernel: btrfs-transacti D ffff8803bc89fdc8 0 4187 2 0x00000000 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kernel: Not tainted 3.19.0-16-generic #16-Ubuntu kernel: INFO: task btrfs-transacti:4187 blocked for more than 120 seconds. kernel: [<ffffffff817c934d>] system_call_fastpath+0x16/0x1b kernel: [<ffffffff812175db>] SyS_mount+0x8b/0xd0 kernel: [<ffffffff812169a4>] do_mount+0x204/0xb20 kernel: [<ffffffff81213b4b>] vfs_kern_mount+0x6b/0x120 kernel: [<ffffffff8119b805>] ? __alloc_percpu+0x15/0x20 kernel: [<ffffffff811f7428>] mount_fs+0x38/0x1c0 kernel: [<ffffffffc0333b00>] btrfs_mount+0x850/0x920 [btrfs] kernel: [<ffffffffc035db23>] open_ctree+0x1813/0x2090 [btrfs] kernel: [<ffffffffc039f9c0>] ? replay_one_extent+0x6b0/0x6b0 [btrfs] kernel: [<ffffffffc03a2214>] btrfs_recover_log_trees+0x1d4/0x470 [btrfs] kernel: [<ffffffffc039abbb>] walk_log_tree+0xbb/0x1a0 [btrfs] kernel: [<ffffffffc039a679>] walk_down_log_tree+0x1d9/0x420 [btrfs] kernel: [<ffffffffc0382f34>] ? alloc_extent_buffer+0x34/0x350 [btrfs] kernel: [<ffffffffc039b04e>] insert_orphan_item+0x5e/0x90 [btrfs] ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jdfalk 3444 F.... pulseaudio Date: Wed May 13 19:03:10 2015 HibernationDevice: RESUME=/dev/mapper/sda5_crypt InstallationDate: Installed on 2015-05-10 (4 days ago) InstallationMedia: Ubuntu-Server 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: Gigabyte Technology Co., Ltd. To be filled by O.E.M. ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic.efi.signed root=UUID=51a981ad-aeb0-4bd7-91c6-2d493155c812 ro rootflags=subvol=@ crashkernel=384M-:128M PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/06/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F18i dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Z77X-D3H dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF18i:bd01/06/2014:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnZ77X-D3H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. --- ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 DistroRelease: Ubuntu 15.04 InstallationDate: Installed on 2015-05-10 (5 days ago) InstallationMedia: Ubuntu-Server 15.04 "Vivid Vervet" - Release amd64 (20150422) Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash Tags: vivid Uname: Linux 4.1.0-040100rc3-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454903/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
