[10774.752317] ------------[ cut here ]------------ [10774.752338] WARNING: CPU: 5 PID: 20051 at fs/btrfs/extent-tree.c:2025 __btrfs_inc_extent_ref.isra.22+0x207/0x270 [btrfs]() [10774.752340] BTRFS: Transaction aborted (error -17) [10774.752341] Modules linked in: unix_diag smsc47b397 ext4 crc16 mbcache jbd2 input_leds mousedev led_class hp_wmi tg3 coretemp evdev kvm_intel serio_raw sparse_keymap rfkill psmouse ppdev mac_hid iTCO_wdt iTCO_vendor_support gpio_ich kvm ptp pps_core libphy snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec i7core_edac edac_core wmi parport_pc parport acpi_cpufreq lpc_ich snd_hda_core button snd_hwdep snd_pcm snd_timer snd soundcore shpchp processor sch_fq_codel pci_stub vboxpci(O) vboxdrv(O) nfs lockd grace sunrpc fscache ip_tables x_tables btrfs xor hid_generic usbhid hid raid6_pq sr_mod cdrom sd_mod atkbd libps2 mptsas crc32c_intel ahci libahci radeon scsi_transport_sas libata mptscsih i2c_algo_bit drm_kms_helper ehci_pci uhci_hcd mptbase ehci_hcd firewire_ohci scsi_mod firewire_core [10774.752392] ttm crc_itu_t usbcore usb_common drm i8042 floppy serio [10774.752399] CPU: 5 PID: 20051 Comm: kworker/u34:8 Tainted: G IO 4.2.5-1-ARCH #1 [10774.752401] Hardware name: Hewlett-Packard HP Z800 Workstation/0AECh, BIOS 786G5 v01.17 08/19/2009 [10774.752412] Workqueue: btrfs-extent-refs btrfs_extent_refs_helper [btrfs] [10774.752414] 0000000000000000 00000000dd3919cf ffff88102168ba98 ffffffff81570d0a [10774.752416] 0000000000000000 ffff88102168baf0 ffff88102168bad8 ffffffff810748a6 [10774.752419] ffff88100666a248 0000000000000000 ffff88102c3cd800 ffff88100666a240 [10774.752421] Call Trace: [10774.752428] [] dump_stack+0x4c/0x6e [10774.752434] [] warn_slowpath_common+0x86/0xc0 [10774.752436] [] warn_slowpath_fmt+0x55/0x70 [10774.752443] [] __btrfs_inc_extent_ref.isra.22+0x207/0x270 [btrfs] [10774.752451] [] __btrfs_run_delayed_refs+0xcab/0x10e0 [btrfs] [10774.752457] [] ? ttwu_stat+0x98/0x100 [10774.752466] [] ? join_transaction.isra.3+0x10e/0x410 [btrfs] [10774.752474] [] btrfs_run_delayed_refs.part.39+0x73/0x250 [btrfs] [10774.752481] [] delayed_ref_async_start+0x7e/0x90 [btrfs] [10774.752491] [] btrfs_scrubparity_helper+0x77/0x2e0 [btrfs] [10774.752500] [] btrfs_extent_refs_helper+0xe/0x10 [btrfs] [10774.752504] [] process_one_work+0x14b/0x440 [10774.752506] [] worker_thread+0x48/0x4a0 [10774.752508] [] ? process_one_work+0x440/0x440 [10774.752510] [] ? process_one_work+0x440/0x440 [10774.752513] [] kthread+0xd8/0xf0 [10774.752516] [] ? kthread_worker_fn+0x170/0x170 [10774.752520] [] ret_from_fork+0x3f/0x70 [10774.752522] [] ? kthread_worker_fn+0x170/0x170 [10774.752524] ---[ end trace c941f9140d7e9e2d ]--- [10774.752527] BTRFS: error (device sdd) in __btrfs_inc_extent_ref:2025: errno=-17 Object already exists [10774.752530] BTRFS info (device sdd): forced readonly [10774.752532] BTRFS: error (device sdd) in btrfs_run_delayed_refs:2781: errno=-17 Object already exists [10774.752658] BTRFS: error (device sdd) in __btrfs_inc_extent_ref:2025: errno=-17 Object already exists [10774.752665] BTRFS: error (device sdd) in btrfs_run_delayed_refs:2781: errno=-17 Object already exists [10774.754373] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754408] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754443] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754478] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754505] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754531] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754561] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754587] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754612] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754639] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754668] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754695] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754724] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754750] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754771] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754796] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754821] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754846] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754871] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754896] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754922] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754952] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.754977] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.755002] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.755024] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.755049] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.755071] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.755095] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.755120] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.755145] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.755166] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.755194] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.755223] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.755480] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.755509] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.755615] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.755706] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10774.768691] pending csums is 9158656 [10774.770969] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10797.621570] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10801.322217] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10804.731574] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system [10809.903252] systemd-journald[333]: Failed to truncate file to its own size: Read-only file system