Tried zero-log. After reboot the system booted again. But all sub-volumes are mounted read-only. This should be the relevant dmesg excerpt (note to last lines, there it mentions forced to ro mode) [ 51.356769] WARNING: CPU: 3 PID: 54 at fs/btrfs/extent-tree.c:6822 __btrfs_free_extent.isra.25+0x61e/0x940 [btrfs] [ 51.356770] Modules linked in: isofs thunderbolt ccm rfcomm fuse cmac snd_hda_codec_hdmi bnep snd_hda_codec_realtek snd_hda_codec_generic hid_multitouch joydev arc4 iTCO_wdt iTCO_vendor_support nls_iso8859_1 nls_cp437 vfat fat uvcvideo btusb btrtl videobuf2_vmalloc btbcm videobuf2_memops videobuf2_v4l2 btintel videobuf2_common ath10k_pci bluetooth ath10k_core videodev mousedev i915 intel_rapl ath snd_soc_skl snd_soc_hdac_hda ecdh_generic x86_pkg_temp_thermal intel_powerclamp snd_hda_ext_core media crc16 coretemp snd_soc_skl_ipc mac80211 uas snd_soc_sst_ipc kvm_intel snd_soc_sst_dsp snd_soc_acpi_intel_match kvmgt snd_soc_acpi vfio_mdev mdev mei_wdt dell_laptop vfio_iommu_type1 dell_wmi wmi_bmof snd_soc_core vfio intel_wmi_thunderbolt dell_smbios dell_wmi_descriptor snd_compress i2c_algo_bit dcdbas kvm ac97_bus snd_pcm_dmaengine drm_kms_helper snd_hda_intel snd_hda_codec cfg80211 irqbypass intel_cstate intel_uncore snd_hda_core snd_hwdep input_leds snd_pcm intel_rapl_perf drm snd_timer [ 51.356792] psmouse rtsx_pci_ms pcspkr memstick idma64 rfkill snd intel_gtt mei_me processor_thermal_device agpgart intel_soc_dts_iosf soundcore mei syscopyarea sysfillrect i2c_i801 sysimgblt fb_sys_fops intel_lpss_pci intel_lpss intel_pch_thermal ucsi_acpi tpm_crb typec_ucsi wmi typec i2c_hid battery soc_button_array intel_vbtn tpm_tis tpm_tis_core tpm int3403_thermal evdev int340x_thermal_zone mac_hid intel_hid rng_core ac int3400_thermal acpi_thermal_rel sparse_keymap pcc_cpufreq vboxnetflt(OE) vboxnetadp(OE) vboxpci(OE) vboxdrv(OE) sg crypto_user ip_tables x_tables btrfs libcrc32c crc32c_generic xor raid6_pq algif_skcipher af_alg sd_mod usb_storage scsi_mod hid_generic usbhid hid dm_crypt dm_mod crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel rtsx_pci_sdmmc mmc_core serio_raw atkbd libps2 aesni_intel aes_x86_64 xhci_pci crypto_simd cryptd glue_helper xhci_hcd rtsx_pci i8042 serio [ 51.356817] CPU: 3 PID: 54 Comm: kworker/u8:1 Tainted: G U OE 4.20.6-arch1-1-ARCH #1 [ 51.356817] Hardware name: Dell Inc. XPS 13 9360/0PF86Y, BIOS 2.1.0 08/02/2017 [ 51.356830] Workqueue: btrfs-extent-refs btrfs_extent_refs_helper [btrfs] [ 51.356839] RIP: 0010:__btrfs_free_extent.isra.25+0x61e/0x940 [btrfs] [ 51.356840] Code: b8 00 00 00 48 8b 7c 24 08 e8 ae 1a ff ff 41 89 c5 58 c6 44 24 2c 00 45 85 ed 0f 84 f2 fa ff ff 41 83 fd fe 0f 85 e1 fb ff ff <0f> 0b 49 8b 3c 24 e8 87 32 00 00 49 89 d9 4d 89 f8 4c 89 f1 ff b4 [ 51.356841] RSP: 0018:ffffacf5c1b37c38 EFLAGS: 00010246 [ 51.356842] RAX: 00000000fffffffe RBX: 0000000000000000 RCX: 0000000000000000 [ 51.356842] RDX: 00000000fffffffe RSI: 0000000000000000 RDI: ffff9b03dbb6f3b0 [ 51.356843] RBP: 0000005ae1ce8000 R08: 0000000000000000 R09: 000000000000009b [ 51.356844] R10: 000000000000003c R11: 0000000000000000 R12: ffff9b03da498ee0 [ 51.356844] R13: 00000000fffffffe R14: 0000000000000000 R15: 0000000000000002 [ 51.356845] FS: 0000000000000000(0000) GS:ffff9b04ae380000(0000) knlGS:0000000000000000 [ 51.356846] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.356847] CR2: 00007f252cd16af0 CR3: 000000020140a006 CR4: 00000000003606e0 [ 51.356847] Call Trace: [ 51.356854] ? _raw_spin_lock+0x13/0x30 [ 51.356855] ? _raw_spin_unlock+0x16/0x30 [ 51.356866] ? btrfs_merge_delayed_refs+0x315/0x350 [btrfs] [ 51.356875] __btrfs_run_delayed_refs+0x6f2/0x10e0 [btrfs] [ 51.356879] ? preempt_count_add+0x79/0xb0 [ 51.356887] btrfs_run_delayed_refs+0x64/0x180 [btrfs] [ 51.356895] delayed_ref_async_start+0x81/0x90 [btrfs] [ 51.356906] normal_work_helper+0xbd/0x350 [btrfs] [ 51.356909] process_one_work+0x1eb/0x410 [ 51.356911] worker_thread+0x2d/0x3d0 [ 51.356913] ? process_one_work+0x410/0x410 [ 51.356914] kthread+0x112/0x130 [ 51.356916] ? kthread_park+0x80/0x80 [ 51.356917] ret_from_fork+0x35/0x40 [ 51.356919] ---[ end trace 0be7e900e0369795 ]--- [ 51.356921] BTRFS info (device dm-0): leaf 88151867392 gen 554573 total ptrs 207 free space 4277 owner 2 [ 51.356922] item 0 key (390330466304 169 0) itemoff 16250 itemsize 33 [ 51.356923] extent refs 1 gen 548992 flags 2 [ 51.356924] ref#0: tree block backref root 7 [ 51.356925] item 1 key (390330597376 169 0) itemoff 16217 itemsize 33 [ 51.356926] extent refs 1 gen 554161 flags 2 [ 51.356926] ref#0: tree block backref root 7 [ 51.356927] item 2 key (390330761216 169 0) itemoff 16184 itemsize 33 [ 51.356927] extent refs 1 gen 475169 flags 2 [ 51.356928] ref#0: tree block backref root 257 [ 51.356929] item 3 key (390330892288 169 0) itemoff 16151 itemsize 33 [ 51.356929] extent refs 1 gen 475169 flags 2 [ 51.356929] ref#0: tree block backref root 257 [ 51.356930] item 4 key (390330925056 169 0) itemoff 16118 itemsize 33 [ 51.356931] extent refs 1 gen 554472 flags 2 [ 51.356931] ref#0: tree block backref root 7 [ 51.356932] item 5 key (390330990592 169 0) itemoff 16085 itemsize 33 [ 51.356933] extent refs 1 gen 554161 flags 2 [ 51.356933] ref#0: tree block backref root 258 [ 51.356934] item 6 key (390331006976 169 0) itemoff 16052 itemsize 33 [ 51.356934] extent refs 1 gen 475169 flags 2 [ 51.356935] ref#0: tree block backref root 257 [ 51.356936] item 7 key (390331023360 169 0) itemoff 16019 itemsize 33 [ 51.356936] extent refs 1 gen 554472 flags 2 [ 51.356936] ref#0: tree block backref root 7 [ 51.356937] item 8 key (390331056128 169 0) itemoff 15986 itemsize 33 [ 51.356938] extent refs 1 gen 554161 flags 2 [ 51.356938] ref#0: tree block backref root 7 [ 51.356939] item 9 key (390331121664 169 0) itemoff 15953 itemsize 33 [ 51.356940] extent refs 1 gen 554161 flags 2 [ 51.356940] ref#0: tree block backref root 7 [ 51.356941] item 10 key (390331170816 169 0) itemoff 15920 itemsize 33 [ 51.356941] extent refs 1 gen 554472 flags 2 [ 51.356942] ref#0: tree block backref root 258 [ 51.356943] item 11 key (390331269120 169 0) itemoff 15887 itemsize 33 [ 51.356943] extent refs 1 gen 475169 flags 2 [ 51.356943] ref#0: tree block backref root 257 [ 51.356944] item 12 key (390331301888 169 0) itemoff 15854 itemsize 33 [ 51.356945] extent refs 1 gen 554472 flags 2 [ 51.356945] ref#0: tree block backref root 7 [ 51.356946] item 13 key (390331449344 169 0) itemoff 15821 itemsize 33 [ 51.356947] extent refs 1 gen 554161 flags 2 [ 51.356947] ref#0: tree block backref root 7 [ 51.356948] item 14 key (390331465728 169 0) itemoff 15788 itemsize 33 [ 51.356948] extent refs 1 gen 475169 flags 2 [ 51.356949] ref#0: tree block backref root 257 [ 51.356950] item 15 key (390331531264 169 0) itemoff 15755 itemsize 33 [ 51.356950] extent refs 1 gen 475169 flags 2 [ 51.356950] ref#0: tree block backref root 257 [ 51.356951] item 16 key (390331613184 169 0) itemoff 15722 itemsize 33 [ 51.356952] extent refs 1 gen 475169 flags 2 [ 51.356952] ref#0: tree block backref root 257 [ 51.356953] item 17 key (390332727296 169 0) itemoff 15689 itemsize 33 [ 51.356954] extent refs 1 gen 554161 flags 2 [ 51.356954] ref#0: tree block backref root 7 [ 51.356955] item 18 key (390332907520 169 0) itemoff 15656 itemsize 33 [ 51.356955] extent refs 1 gen 554161 flags 2 [ 51.356956] ref#0: tree block backref root 7 [ 51.356956] item 19 key (390332923904 169 0) itemoff 15623 itemsize 33 [ 51.356957] extent refs 1 gen 554472 flags 2 [ 51.356957] ref#0: tree block backref root 2 [ 51.356958] item 20 key (390333005824 169 0) itemoff 15590 itemsize 33 [ 51.356959] extent refs 1 gen 554472 flags 2 [ 51.356959] ref#0: tree block backref root 2 [ 51.356960] item 21 key (390333169664 169 0) itemoff 15557 itemsize 33 [ 51.356960] extent refs 1 gen 554472 flags 2 [ 51.356961] ref#0: tree block backref root 2 [ 51.356962] item 22 key (390333235200 169 0) itemoff 15524 itemsize 33 [ 51.356962] extent refs 1 gen 554472 flags 2 [ 51.356962] ref#0: tree block backref root 2 [ 51.356963] item 23 key (390333267968 169 0) itemoff 15491 itemsize 33 [ 51.356964] extent refs 1 gen 554472 flags 2 [ 51.356964] ref#0: tree block backref root 2 [ 51.356965] item 24 key (390333284352 169 0) itemoff 15458 itemsize 33 [ 51.356966] extent refs 1 gen 554472 flags 2 [ 51.356966] ref#0: tree block backref root 2 [ 51.356967] item 25 key (390333349888 169 0) itemoff 15425 itemsize 33 [ 51.356967] extent refs 1 gen 554472 flags 2 [ 51.356968] ref#0: tree block backref root 2 [ 51.356968] item 26 key (390333382656 169 0) itemoff 15392 itemsize 33 [ 51.356969] extent refs 1 gen 554472 flags 2 [ 51.356969] ref#0: tree block backref root 2 [ 51.356970] item 27 key (390333399040 169 0) itemoff 15359 itemsize 33 [ 51.356971] extent refs 1 gen 554472 flags 2 [ 51.356971] ref#0: tree block backref root 2 [ 51.356972] item 28 key (390333480960 169 0) itemoff 15326 itemsize 33 [ 51.356972] extent refs 1 gen 554285 flags 2 [ 51.356973] ref#0: tree block backref root 258 [ 51.356974] item 29 key (390333497344 169 0) itemoff 15293 itemsize 33 [ 51.356974] extent refs 1 gen 554285 flags 2 [ 51.356974] ref#0: tree block backref root 258 [ 51.356975] item 30 key (390333530112 169 0) itemoff 15260 itemsize 33 [ 51.356976] extent refs 1 gen 554161 flags 2 [ 51.356976] ref#0: tree block backref root 2 [ 51.356977] item 31 key (390333562880 169 0) itemoff 15227 itemsize 33 [ 51.356978] extent refs 1 gen 554472 flags 2 [ 51.356978] ref#0: tree block backref root 2 [ 51.356979] item 32 key (390333579264 169 0) itemoff 15194 itemsize 33 [ 51.356979] extent refs 1 gen 554472 flags 2 [ 51.356980] ref#0: tree block backref root 2 [ 51.356981] item 33 key (390333661184 169 0) itemoff 15161 itemsize 33 [ 51.356981] extent refs 1 gen 554472 flags 2 [ 51.356981] ref#0: tree block backref root 2 [ 51.356982] item 34 key (390333677568 169 0) itemoff 15128 itemsize 33 [ 51.356983] extent refs 1 gen 554472 flags 2 [ 51.356983] ref#0: tree block backref root 2 [ 51.356984] item 35 key (390333726720 169 0) itemoff 15095 itemsize 33 [ 51.356984] extent refs 1 gen 554472 flags 2 [ 51.356985] ref#0: tree block backref root 2 [ 51.356986] item 36 key (390333743104 169 0) itemoff 15062 itemsize 33 [ 51.356986] extent refs 1 gen 554472 flags 2 [ 51.356987] ref#0: tree block backref root 2 [ 51.356987] item 37 key (390333759488 169 0) itemoff 15029 itemsize 33 [ 51.356988] extent refs 1 gen 554472 flags 2 [ 51.356988] ref#0: tree block backref root 2 [ 51.356989] item 38 key (390333775872 169 0) itemoff 14996 itemsize 33 [ 51.356990] extent refs 1 gen 554472 flags 2 [ 51.356990] ref#0: tree block backref root 2 [ 51.356991] item 39 key (390333792256 169 0) itemoff 14963 itemsize 33 [ 51.356991] extent refs 1 gen 554285 flags 2 [ 51.356992] ref#0: tree block backref root 258 [ 51.356993] item 40 key (390333808640 169 0) itemoff 14930 itemsize 33 [ 51.356993] extent refs 1 gen 554285 flags 2 [ 51.356993] ref#0: tree block backref root 7 [ 51.356994] item 41 key (390333825024 169 0) itemoff 14897 itemsize 33 [ 51.356995] extent refs 1 gen 554285 flags 2 [ 51.356995] ref#0: tree block backref root 258 [ 51.356996] item 42 key (390333841408 169 0) itemoff 14864 itemsize 33 [ 51.356997] extent refs 1 gen 554285 flags 2 [ 51.356997] ref#0: tree block backref root 258 [ 51.356998] item 43 key (390333874176 169 0) itemoff 14831 itemsize 33 [ 51.356998] extent refs 1 gen 554472 flags 2 [ 51.356999] ref#0: tree block backref root 2 [ 51.357000] item 44 key (390333890560 169 0) itemoff 14798 itemsize 33 [ 51.357000] extent refs 1 gen 554472 flags 2 [ 51.357000] ref#0: tree block backref root 2 [ 51.357001] item 45 key (390333988864 169 0) itemoff 14765 itemsize 33 [ 51.357002] extent refs 1 gen 554161 flags 2 [ 51.357002] ref#0: tree block backref root 2 [ 51.357003] item 46 key (390334021632 169 0) itemoff 14732 itemsize 33 [ 51.357004] extent refs 1 gen 554161 flags 2 [ 51.357004] ref#0: tree block backref root 2 [ 51.357005] item 47 key (390334070784 169 0) itemoff 14699 itemsize 33 [ 51.357005] extent refs 1 gen 554472 flags 2 [ 51.357006] ref#0: tree block backref root 2 [ 51.357006] item 48 key (390334152704 169 0) itemoff 14666 itemsize 33 [ 51.357007] extent refs 1 gen 554285 flags 2 [ 51.357007] ref#0: tree block backref root 7 [ 51.357008] item 49 key (390334169088 169 0) itemoff 14633 itemsize 33 [ 51.357009] extent refs 1 gen 554285 flags 2 [ 51.357009] ref#0: tree block backref root 258 [ 51.357010] item 50 key (390334267392 169 0) itemoff 14600 itemsize 33 [ 51.357010] extent refs 1 gen 554472 flags 2 [ 51.357011] ref#0: tree block backref root 2 [ 51.357012] item 51 key (390334414848 169 0) itemoff 14567 itemsize 33 [ 51.357012] extent refs 1 gen 553440 flags 2 [ 51.357012] ref#0: tree block backref root 258 [ 51.357013] item 52 key (390334545920 169 0) itemoff 14534 itemsize 33 [ 51.357014] extent refs 1 gen 554472 flags 2 [ 51.357014] ref#0: tree block backref root 2 [ 51.357015] item 53 key (390334611456 169 0) itemoff 14501 itemsize 33 [ 51.357016] extent refs 1 gen 554285 flags 2 [ 51.357016] ref#0: tree block backref root 258 [ 51.357017] item 54 key (390334758912 169 0) itemoff 14468 itemsize 33 [ 51.357017] extent refs 1 gen 554472 flags 2 [ 51.357018] ref#0: tree block backref root 2 [ 51.357019] item 55 key (390334857216 169 0) itemoff 14435 itemsize 33 [ 51.357019] extent refs 1 gen 475169 flags 2 [ 51.357019] ref#0: tree block backref root 257 [ 51.357020] item 56 key (390334889984 169 0) itemoff 14402 itemsize 33 [ 51.357021] extent refs 1 gen 475169 flags 2 [ 51.357021] ref#0: tree block backref root 257 [ 51.357022] item 57 key (390335152128 169 0) itemoff 14369 itemsize 33 [ 51.357022] extent refs 1 gen 554472 flags 2 [ 51.357023] ref#0: tree block backref root 2 [ 51.357024] item 58 key (390335447040 169 0) itemoff 14336 itemsize 33 [ 51.357024] extent refs 1 gen 554472 flags 2 [ 51.357024] ref#0: tree block backref root 2 [ 51.357025] item 59 key (390335463424 169 8388608) itemoff 14303 itemsize 33 [ 51.357026] extent refs 1 gen 554472 flags 2 [ 51.357026] ref#0: tree block backref root 2 [ 51.357027] item 60 key (390336692224 169 0) itemoff 14270 itemsize 33 [ 51.357028] extent refs 1 gen 553440 flags 2 [ 51.357028] ref#0: tree block backref root 258 [ 51.357029] item 61 key (390337609728 169 0) itemoff 14237 itemsize 33 [ 51.357029] extent refs 1 gen 553172 flags 2 [ 51.357030] ref#0: tree block backref root 258 [ 51.357031] item 62 key (390337855488 169 0) itemoff 14204 itemsize 33 [ 51.357031] extent refs 1 gen 478479 flags 2 [ 51.357031] ref#0: tree block backref root 259 [ 51.357032] item 63 key (390338117632 169 0) itemoff 14171 itemsize 33 [ 51.357033] extent refs 1 gen 554161 flags 2 [ 51.357033] ref#0: tree block backref root 2 [ 51.357034] item 64 key (390338150400 169 0) itemoff 14138 itemsize 33 [ 51.357035] extent refs 1 gen 554161 flags 2 [ 51.357035] ref#0: tree block backref root 2 [ 51.357036] item 65 key (390338314240 169 0) itemoff 14105 itemsize 33 [ 51.357036] extent refs 1 gen 554161 flags 2 [ 51.357037] ref#0: tree block backref root 2 [ 51.357038] item 66 key (390338772992 169 0) itemoff 14072 itemsize 33 [ 51.357038] extent refs 1 gen 554161 flags 2 [ 51.357038] ref#0: tree block backref root 2 [ 51.357039] item 67 key (390338805760 169 0) itemoff 14039 itemsize 33 [ 51.357040] extent refs 1 gen 554161 flags 2 [ 51.357040] ref#0: tree block backref root 2 [ 51.357041] item 68 key (390338822144 169 0) itemoff 14006 itemsize 33 [ 51.357042] extent refs 1 gen 554161 flags 2 [ 51.357042] ref#0: tree block backref root 7 [ 51.357043] item 69 key (390338854912 169 0) itemoff 13973 itemsize 33 [ 51.357043] extent refs 1 gen 554161 flags 2 [ 51.357044] ref#0: tree block backref root 2 [ 51.357044] item 70 key (390338920448 169 0) itemoff 13940 itemsize 33 [ 51.357045] extent refs 1 gen 554161 flags 2 [ 51.357045] ref#0: tree block backref root 2 [ 51.357046] item 71 key (390339198976 169 0) itemoff 13907 itemsize 33 [ 51.357047] extent refs 1 gen 554161 flags 2 [ 51.357047] ref#0: tree block backref root 2 [ 51.357048] item 72 key (390339346432 169 0) itemoff 13874 itemsize 33 [ 51.357048] extent refs 1 gen 553135 flags 2 [ 51.357049] ref#0: tree block backref root 258 [ 51.357050] item 73 key (390339461120 169 0) itemoff 13841 itemsize 33 [ 51.357050] extent refs 1 gen 553776 flags 2 [ 51.357050] ref#0: tree block backref root 2 [ 51.357051] item 74 key (390339608576 169 0) itemoff 13808 itemsize 33 [ 51.357052] extent refs 1 gen 554161 flags 2 [ 51.357052] ref#0: tree block backref root 2 [ 51.357053] item 75 key (390339706880 169 0) itemoff 13775 itemsize 33 [ 51.357054] extent refs 1 gen 554161 flags 2 [ 51.357054] ref#0: tree block backref root 2 [ 51.357055] item 76 key (390339723264 169 0) itemoff 13742 itemsize 33 [ 51.357055] extent refs 1 gen 551243 flags 2 [ 51.357056] ref#0: tree block backref root 259 [ 51.357057] item 77 key (390339739648 169 0) itemoff 13709 itemsize 33 [ 51.357057] extent refs 1 gen 554161 flags 2 [ 51.357057] ref#0: tree block backref root 2 [ 51.357058] item 78 key (390339756032 169 0) itemoff 13676 itemsize 33 [ 51.357059] extent refs 1 gen 553135 flags 2 [ 51.357059] ref#0: tree block backref root 258 [ 51.357060] item 79 key (390339805184 169 0) itemoff 13643 itemsize 33 [ 51.357061] extent refs 1 gen 553135 flags 2 [ 51.357061] ref#0: tree block backref root 258 [ 51.357062] item 80 key (390339870720 169 0) itemoff 13610 itemsize 33 [ 51.357062] extent refs 1 gen 553135 flags 2 [ 51.357063] ref#0: tree block backref root 258 [ 51.357063] item 81 key (390339919872 169 0) itemoff 13577 itemsize 33 [ 51.357064] extent refs 1 gen 554161 flags 2 [ 51.357064] ref#0: tree block backref root 2 [ 51.357065] item 82 key (390339936256 169 0) itemoff 13544 itemsize 33 [ 51.357066] extent refs 1 gen 554161 flags 2 [ 51.357066] ref#0: tree block backref root 2 [ 51.357067] item 83 key (390339985408 169 0) itemoff 13511 itemsize 33 [ 51.357067] extent refs 1 gen 554161 flags 2 [ 51.357068] ref#0: tree block backref root 2 [ 51.357069] item 84 key (390340001792 169 0) itemoff 13478 itemsize 33 [ 51.357069] extent refs 1 gen 553135 flags 2 [ 51.357069] ref#0: tree block backref root 258 [ 51.357070] item 85 key (390340132864 169 0) itemoff 13445 itemsize 33 [ 51.357071] extent refs 1 gen 553135 flags 2 [ 51.357071] ref#0: tree block backref root 258 [ 51.357072] item 86 key (390340427776 169 0) itemoff 13412 itemsize 33 [ 51.357073] extent refs 1 gen 554161 flags 2 [ 51.357073] ref#0: tree block backref root 2 [ 51.357074] item 87 key (390340460544 169 0) itemoff 13379 itemsize 33 [ 51.357074] extent refs 1 gen 554161 flags 2 [ 51.357075] ref#0: tree block backref root 2 [ 51.357076] item 88 key (390340509696 169 0) itemoff 13346 itemsize 33 [ 51.357076] extent refs 1 gen 554161 flags 2 [ 51.357076] ref#0: tree block backref root 2 [ 51.357077] item 89 key (390340591616 169 0) itemoff 13313 itemsize 33 [ 51.357078] extent refs 1 gen 554161 flags 2 [ 51.357078] ref#0: tree block backref root 2 [ 51.357079] item 90 key (390340608000 169 0) itemoff 13280 itemsize 33 [ 51.357079] extent refs 1 gen 554161 flags 2 [ 51.357080] ref#0: tree block backref root 2 [ 51.357081] item 91 key (390340673536 169 0) itemoff 13247 itemsize 33 [ 51.357081] extent refs 1 gen 554161 flags 2 [ 51.357081] ref#0: tree block backref root 2 [ 51.357082] item 92 key (390340706304 169 0) itemoff 13214 itemsize 33 [ 51.357083] extent refs 1 gen 554161 flags 2 [ 51.357083] ref#0: tree block backref root 2 [ 51.357084] item 93 key (390340837376 169 0) itemoff 13181 itemsize 33 [ 51.357085] extent refs 1 gen 532212 flags 2 [ 51.357085] ref#0: tree block backref root 258 [ 51.357086] item 94 key (390341132288 169 0) itemoff 13148 itemsize 33 [ 51.357086] extent refs 1 gen 553135 flags 2 [ 51.357087] ref#0: tree block backref root 7 [ 51.357088] item 95 key (390341197824 169 0) itemoff 13115 itemsize 33 [ 51.357088] extent refs 1 gen 554161 flags 2 [ 51.357088] ref#0: tree block backref root 2 [ 51.357089] item 96 key (390341804032 169 0) itemoff 13082 itemsize 33 [ 51.357090] extent refs 1 gen 554161 flags 2 [ 51.357090] ref#0: tree block backref root 2 [ 51.357091] item 97 key (390341820416 169 0) itemoff 13049 itemsize 33 [ 51.357091] extent refs 1 gen 554161 flags 2 [ 51.357092] ref#0: tree block backref root 7 [ 51.357093] item 98 key (390342131712 169 0) itemoff 13016 itemsize 33 [ 51.357093] extent refs 1 gen 554161 flags 2 [ 51.357093] ref#0: tree block backref root 2 [ 51.357094] item 99 key (390342459392 169 0) itemoff 12983 itemsize 33 [ 51.357095] extent refs 1 gen 554472 flags 2 [ 51.357095] ref#0: tree block backref root 2 [ 51.357096] item 100 key (390342672384 169 0) itemoff 12950 itemsize 33 [ 51.357097] extent refs 1 gen 554161 flags 2 [ 51.357097] ref#0: tree block backref root 2 [ 51.357098] item 101 key (390343458816 169 0) itemoff 12917 itemsize 33 [ 51.357098] extent refs 1 gen 554161 flags 2 [ 51.357099] ref#0: tree block backref root 2 [ 51.357100] item 102 key (390343507968 169 0) itemoff 12884 itemsize 33 [ 51.357100] extent refs 1 gen 554161 flags 2 [ 51.357100] ref#0: tree block backref root 2 [ 51.357101] item 103 key (390343704576 169 0) itemoff 12851 itemsize 33 [ 51.357102] extent refs 1 gen 553135 flags 2 [ 51.357102] ref#0: tree block backref root 258 [ 51.357103] item 104 key (390343720960 169 0) itemoff 12818 itemsize 33 [ 51.357104] extent refs 1 gen 482485 flags 2 [ 51.357104] ref#0: tree block backref root 258 [ 51.357105] item 105 key (390344163328 169 0) itemoff 12785 itemsize 33 [ 51.357105] extent refs 1 gen 554161 flags 2 [ 51.357106] ref#0: tree block backref root 2 [ 51.357107] item 106 key (390344605696 169 0) itemoff 12752 itemsize 33 [ 51.357107] extent refs 1 gen 554161 flags 2 [ 51.357107] ref#0: tree block backref root 2 [ 51.357108] item 107 key (390345326592 169 0) itemoff 12719 itemsize 33 [ 51.357109] extent refs 1 gen 552553 flags 2 [ 51.357109] ref#0: tree block backref root 7 [ 51.357110] item 108 key (390345457664 169 0) itemoff 12686 itemsize 33 [ 51.357111] extent refs 1 gen 554161 flags 2 [ 51.357111] ref#0: tree block backref root 2 [ 51.357112] item 109 key (390345801728 169 0) itemoff 12653 itemsize 33 [ 51.357112] extent refs 1 gen 554161 flags 2 [ 51.357113] ref#0: tree block backref root 2 [ 51.357113] item 110 key (390345818112 169 0) itemoff 12620 itemsize 33 [ 51.357114] extent refs 1 gen 554161 flags 2 [ 51.357114] ref#0: tree block backref root 2 [ 51.357115] item 111 key (390345850880 169 0) itemoff 12587 itemsize 33 [ 51.357116] extent refs 1 gen 554161 flags 2 [ 51.357116] ref#0: tree block backref root 2 [ 51.357117] item 112 key (390345949184 169 0) itemoff 12554 itemsize 33 [ 51.357117] extent refs 1 gen 492593 flags 2 [ 51.357118] ref#0: tree block backref root 258 [ 51.357119] item 113 key (390346309632 169 0) itemoff 12521 itemsize 33 [ 51.357119] extent refs 1 gen 554161 flags 2 [ 51.357119] ref#0: tree block backref root 2 [ 51.357120] item 114 key (390346326016 169 0) itemoff 12488 itemsize 33 [ 51.357121] extent refs 1 gen 554161 flags 2 [ 51.357121] ref#0: tree block backref root 7 [ 51.357122] item 115 key (390346457088 169 0) itemoff 12455 itemsize 33 [ 51.357123] extent refs 1 gen 554161 flags 2 [ 51.357123] ref#0: tree block backref root 2 [ 51.357124] item 116 key (390346588160 169 0) itemoff 12422 itemsize 33 [ 51.357124] extent refs 1 gen 532212 flags 2 [ 51.357125] ref#0: tree block backref root 7 [ 51.357125] item 117 key (390346604544 169 0) itemoff 12389 itemsize 33 [ 51.357126] extent refs 1 gen 554161 flags 2 [ 51.357126] ref#0: tree block backref root 2 [ 51.357127] item 118 key (390346948608 169 0) itemoff 12356 itemsize 33 [ 51.357128] extent refs 1 gen 554161 flags 2 [ 51.357128] ref#0: tree block backref root 2 [ 51.357129] item 119 key (390347030528 169 0) itemoff 12323 itemsize 33 [ 51.357129] extent refs 1 gen 554161 flags 2 [ 51.357130] ref#0: tree block backref root 2 [ 51.357131] item 120 key (390347538432 169 0) itemoff 12290 itemsize 33 [ 51.357131] extent refs 1 gen 552553 flags 2 [ 51.357131] ref#0: tree block backref root 2 [ 51.357132] item 121 key (390347964416 169 0) itemoff 12257 itemsize 33 [ 51.357133] extent refs 1 gen 552553 flags 2 [ 51.357133] ref#0: tree block backref root 2 [ 51.357134] item 122 key (390348570624 169 0) itemoff 12224 itemsize 33 [ 51.357135] extent refs 1 gen 535248 flags 2 [ 51.357135] ref#0: tree block backref root 2 [ 51.357136] item 123 key (390348619776 169 0) itemoff 12191 itemsize 33 [ 51.357136] extent refs 1 gen 535248 flags 2 [ 51.357137] ref#0: tree block backref root 7 [ 51.357138] item 124 key (390348914688 169 0) itemoff 12158 itemsize 33 [ 51.357138] extent refs 1 gen 552553 flags 2 [ 51.357138] ref#0: tree block backref root 2 [ 51.357139] item 125 key (390348980224 169 0) itemoff 12125 itemsize 33 [ 51.357140] extent refs 1 gen 554474 flags 2 [ 51.357140] ref#0: tree block backref root 7 [ 51.357141] item 126 key (390349389824 169 0) itemoff 12092 itemsize 33 [ 51.357142] extent refs 1 gen 553135 flags 2 [ 51.357142] ref#0: tree block backref root 258 [ 51.357143] item 127 key (390349619200 169 0) itemoff 12059 itemsize 33 [ 51.357143] extent refs 1 gen 548994 flags 2 [ 51.357144] ref#0: tree block backref root 258 [ 51.357145] item 128 key (390349684736 169 0) itemoff 12026 itemsize 33 [ 51.357145] extent refs 1 gen 553135 flags 2 [ 51.357145] ref#0: tree block backref root 258 [ 51.357146] item 129 key (390350077952 169 0) itemoff 11993 itemsize 33 [ 51.357147] extent refs 1 gen 554474 flags 2 [ 51.357147] ref#0: tree block backref root 7 [ 51.357148] item 130 key (390350290944 169 0) itemoff 11960 itemsize 33 [ 51.357148] extent refs 1 gen 554474 flags 2 [ 51.357149] ref#0: tree block backref root 258 [ 51.357150] item 131 key (390350307328 169 0) itemoff 11927 itemsize 33 [ 51.357150] extent refs 1 gen 554474 flags 2 [ 51.357150] ref#0: tree block backref root 258 [ 51.357151] item 132 key (390350340096 169 0) itemoff 11894 itemsize 33 [ 51.357152] extent refs 1 gen 554161 flags 2 [ 51.357152] ref#0: tree block backref root 2 [ 51.357153] item 133 key (390350372864 169 0) itemoff 11861 itemsize 33 [ 51.357154] extent refs 1 gen 554161 flags 2 [ 51.357154] ref#0: tree block backref root 2 [ 51.357155] item 134 key (390350569472 169 0) itemoff 11828 itemsize 33 [ 51.357155] extent refs 1 gen 554474 flags 2 [ 51.357156] ref#0: tree block backref root 2 [ 51.357157] item 135 key (390350585856 169 0) itemoff 11795 itemsize 33 [ 51.357157] extent refs 1 gen 554474 flags 2 [ 51.357157] ref#0: tree block backref root 2 [ 51.357158] item 136 key (390350635008 169 0) itemoff 11762 itemsize 33 [ 51.357159] extent refs 1 gen 554474 flags 2 [ 51.357159] ref#0: tree block backref root 2 [ 51.357160] item 137 key (390350700544 169 0) itemoff 11729 itemsize 33 [ 51.357161] extent refs 1 gen 554474 flags 2 [ 51.357161] ref#0: tree block backref root 2 [ 51.357162] item 138 key (390350766080 169 0) itemoff 11696 itemsize 33 [ 51.357162] extent refs 1 gen 554474 flags 2 [ 51.357163] ref#0: tree block backref root 2 [ 51.357164] item 139 key (390350913536 169 0) itemoff 11663 itemsize 33 [ 51.357164] extent refs 1 gen 554474 flags 2 [ 51.357164] ref#0: tree block backref root 2 [ 51.357165] item 140 key (390350946304 169 0) itemoff 11630 itemsize 33 [ 51.357166] extent refs 1 gen 554474 flags 2 [ 51.357166] ref#0: tree block backref root 2 [ 51.357167] item 141 key (390351142912 169 0) itemoff 11597 itemsize 33 [ 51.357167] extent refs 1 gen 548385 flags 2 [ 51.357168] ref#0: tree block backref root 258 [ 51.357169] item 142 key (390351159296 169 0) itemoff 11564 itemsize 33 [ 51.357169] extent refs 1 gen 554474 flags 2 [ 51.357169] ref#0: tree block backref root 2 [ 51.357170] item 143 key (390351257600 169 0) itemoff 11531 itemsize 33 [ 51.357171] extent refs 1 gen 554285 flags 2 [ 51.357171] ref#0: tree block backref root 258 [ 51.357172] item 144 key (390351323136 169 0) itemoff 11498 itemsize 33 [ 51.357173] extent refs 1 gen 548385 flags 2 [ 51.357173] ref#0: tree block backref root 257 [ 51.357174] item 145 key (390351454208 169 0) itemoff 11465 itemsize 33 [ 51.357174] extent refs 1 gen 554285 flags 2 [ 51.357175] ref#0: tree block backref root 7 [ 51.357176] item 146 key (390351634432 169 0) itemoff 11432 itemsize 33 [ 51.357176] extent refs 1 gen 554285 flags 2 [ 51.357176] ref#0: tree block backref root 7 [ 51.357177] item 147 key (390351962112 169 0) itemoff 11399 itemsize 33 [ 51.357178] extent refs 1 gen 554474 flags 2 [ 51.357178] ref#0: tree block backref root 2 [ 51.357179] item 148 key (390352240640 169 0) itemoff 11366 itemsize 33 [ 51.357180] extent refs 1 gen 554474 flags 2 [ 51.357180] ref#0: tree block backref root 2 [ 51.357181] item 149 key (390352830464 169 0) itemoff 11333 itemsize 33 [ 51.357181] extent refs 1 gen 512584 flags 2 [ 51.357182] ref#0: tree block backref root 7 [ 51.357182] item 150 key (390352977920 169 0) itemoff 11300 itemsize 33 [ 51.357183] extent refs 1 gen 548685 flags 2 [ 51.357183] ref#0: tree block backref root 2 [ 51.357184] item 151 key (390353043456 169 0) itemoff 11267 itemsize 33 [ 51.357185] extent refs 1 gen 548685 flags 2 [ 51.357185] ref#0: tree block backref root 2 [ 51.357186] item 152 key (390353141760 169 0) itemoff 11234 itemsize 33 [ 51.357186] extent refs 1 gen 519476 flags 2 [ 51.357187] ref#0: tree block backref root 258 [ 51.357188] item 153 key (390353305600 169 0) itemoff 11201 itemsize 33 [ 51.357188] extent refs 1 gen 551722 flags 2 [ 51.357188] ref#0: tree block backref root 258 [ 51.357189] item 154 key (390353371136 169 0) itemoff 11168 itemsize 33 [ 51.357190] extent refs 1 gen 551722 flags 2 [ 51.357190] ref#0: tree block backref root 258 [ 51.357191] item 155 key (390353698816 169 0) itemoff 11135 itemsize 33 [ 51.357192] extent refs 1 gen 482485 flags 2 [ 51.357192] ref#0: tree block backref root 258 [ 51.357193] item 156 key (390353731584 169 0) itemoff 11102 itemsize 33 [ 51.357193] extent refs 1 gen 535583 flags 2 [ 51.357194] ref#0: tree block backref root 258 [ 51.357195] item 157 key (390354452480 169 0) itemoff 11069 itemsize 33 [ 51.357195] extent refs 1 gen 548685 flags 2 [ 51.357195] ref#0: tree block backref root 2 [ 51.357196] item 158 key (390354501632 169 0) itemoff 11036 itemsize 33 [ 51.357197] extent refs 1 gen 482485 flags 2 [ 51.357197] ref#0: tree block backref root 258 [ 51.357198] item 159 key (390354665472 169 0) itemoff 11003 itemsize 33 [ 51.357199] extent refs 1 gen 528874 flags 2 [ 51.357199] ref#0: tree block backref root 2 [ 51.357200] item 160 key (390355271680 169 0) itemoff 10970 itemsize 33 [ 51.357200] extent refs 1 gen 554285 flags 2 [ 51.357201] ref#0: tree block backref root 258 [ 51.357202] item 161 key (390355288064 169 0) itemoff 10937 itemsize 33 [ 51.357202] extent refs 1 gen 551496 flags 2 [ 51.357202] ref#0: tree block backref root 2 [ 51.357203] item 162 key (390355369984 169 0) itemoff 10904 itemsize 33 [ 51.357204] extent refs 1 gen 554285 flags 2 [ 51.357204] ref#0: tree block backref root 258 [ 51.357205] item 163 key (390355828736 169 0) itemoff 10871 itemsize 33 [ 51.357206] extent refs 1 gen 507061 flags 2 [ 51.357206] ref#0: tree block backref root 258 [ 51.357207] item 164 key (390356598784 169 0) itemoff 10838 itemsize 33 [ 51.357207] extent refs 1 gen 546118 flags 2 [ 51.357208] ref#0: tree block backref root 258 [ 51.357209] item 165 key (390356631552 169 0) itemoff 10805 itemsize 33 [ 51.357209] extent refs 1 gen 507061 flags 2 [ 51.357209] ref#0: tree block backref root 258 [ 51.357210] item 166 key (390356647936 169 0) itemoff 10772 itemsize 33 [ 51.357211] extent refs 1 gen 507061 flags 2 [ 51.357211] ref#0: tree block backref root 258 [ 51.357212] item 167 key (390356729856 169 0) itemoff 10739 itemsize 33 [ 51.357212] extent refs 1 gen 553440 flags 2 [ 51.357213] ref#0: tree block backref root 7 [ 51.357214] item 168 key (390356779008 169 0) itemoff 10706 itemsize 33 [ 51.357214] extent refs 1 gen 507061 flags 2 [ 51.357215] ref#0: tree block backref root 258 [ 51.357215] item 169 key (390357172224 169 0) itemoff 10673 itemsize 33 [ 51.357216] extent refs 1 gen 478480 flags 2 [ 51.357216] ref#0: tree block backref root 259 [ 51.357217] item 170 key (390357237760 169 0) itemoff 10640 itemsize 33 [ 51.357218] extent refs 1 gen 553440 flags 2 [ 51.357218] ref#0: tree block backref root 258 [ 51.357219] item 171 key (390357368832 169 0) itemoff 10607 itemsize 33 [ 51.357219] extent refs 1 gen 553440 flags 2 [ 51.357220] ref#0: tree block backref root 7 [ 51.357221] item 172 key (390357499904 169 0) itemoff 10574 itemsize 33 [ 51.357221] extent refs 1 gen 553440 flags 2 [ 51.357221] ref#0: tree block backref root 7 [ 51.357222] item 173 key (390357696512 169 0) itemoff 10541 itemsize 33 [ 51.357223] extent refs 1 gen 553440 flags 2 [ 51.357223] ref#0: tree block backref root 7 [ 51.357224] item 174 key (390357712896 169 0) itemoff 10508 itemsize 33 [ 51.357225] extent refs 1 gen 535248 flags 2 [ 51.357225] ref#0: tree block backref root 7 [ 51.357226] item 175 key (390357827584 169 0) itemoff 10475 itemsize 33 [ 51.357226] extent refs 1 gen 553777 flags 2 [ 51.357227] ref#0: tree block backref root 258 [ 51.357228] item 176 key (390357991424 169 0) itemoff 10442 itemsize 33 [ 51.357228] extent refs 1 gen 519476 flags 2 [ 51.357228] ref#0: tree block backref root 258 [ 51.357229] item 177 key (390358007808 169 0) itemoff 10409 itemsize 33 [ 51.357230] extent refs 1 gen 519476 flags 2 [ 51.357230] ref#0: tree block backref root 258 [ 51.357231] item 178 key (390358040576 169 0) itemoff 10376 itemsize 33 [ 51.357231] extent refs 1 gen 519476 flags 2 [ 51.357232] ref#0: tree block backref root 258 [ 51.357233] item 179 key (390358269952 169 0) itemoff 10343 itemsize 33 [ 51.357233] extent refs 1 gen 519476 flags 2 [ 51.357234] ref#0: tree block backref root 258 [ 51.357234] item 180 key (390358450176 169 0) itemoff 10310 itemsize 33 [ 51.357235] extent refs 1 gen 548386 flags 2 [ 51.357235] ref#0: tree block backref root 2 [ 51.357236] item 181 key (390359056384 169 0) itemoff 10277 itemsize 33 [ 51.357237] extent refs 1 gen 483420 flags 2 [ 51.357237] ref#0: tree block backref root 7 [ 51.357238] item 182 key (390359072768 169 0) itemoff 10244 itemsize 33 [ 51.357238] extent refs 1 gen 483420 flags 2 [ 51.357239] ref#0: tree block backref root 7 [ 51.357240] item 183 key (390359105536 169 0) itemoff 10211 itemsize 33 [ 51.357240] extent refs 1 gen 483420 flags 2 [ 51.357240] ref#0: tree block backref root 7 [ 51.357241] item 184 key (390359138304 169 0) itemoff 10178 itemsize 33 [ 51.357242] extent refs 1 gen 554475 flags 2 [ 51.357242] ref#0: tree block backref root 258 [ 51.357243] item 185 key (390359187456 169 0) itemoff 10145 itemsize 33 [ 51.357244] extent refs 1 gen 554475 flags 2 [ 51.357244] ref#0: tree block backref root 258 [ 51.357245] item 186 key (390359203840 169 0) itemoff 10112 itemsize 33 [ 51.357246] extent refs 1 gen 554475 flags 2 [ 51.357246] ref#0: tree block backref root 7 [ 51.357247] item 187 key (390359416832 169 0) itemoff 10079 itemsize 33 [ 51.357247] extent refs 1 gen 554475 flags 2 [ 51.357248] ref#0: tree block backref root 258 [ 51.357249] item 188 key (390359482368 169 0) itemoff 10046 itemsize 33 [ 51.357249] extent refs 1 gen 554475 flags 2 [ 51.357249] ref#0: tree block backref root 258 [ 51.357250] item 189 key (390359662592 169 0) itemoff 10013 itemsize 33 [ 51.357251] extent refs 1 gen 554285 flags 2 [ 51.357251] ref#0: tree block backref root 7 [ 51.357252] item 190 key (390359793664 169 0) itemoff 9980 itemsize 33 [ 51.357253] extent refs 1 gen 551724 flags 2 [ 51.357253] ref#0: tree block backref root 2 [ 51.357254] item 191 key (390359990272 169 0) itemoff 9947 itemsize 33 [ 51.357255] extent refs 1 gen 554475 flags 2 [ 51.357255] ref#0: tree block backref root 258 [ 51.357256] item 192 key (390360170496 169 0) itemoff 9914 itemsize 33 [ 51.357256] extent refs 1 gen 554475 flags 2 [ 51.357257] ref#0: tree block backref root 258 [ 51.357258] item 193 key (390360399872 169 0) itemoff 9881 itemsize 33 [ 51.357258] extent refs 1 gen 551724 flags 2 [ 51.357258] ref#0: tree block backref root 2 [ 51.357259] item 194 key (390361071616 169 0) itemoff 9848 itemsize 33 [ 51.357260] extent refs 1 gen 530311 flags 2 [ 51.357260] ref#0: tree block backref root 258 [ 51.357261] item 195 key (390361186304 169 0) itemoff 9815 itemsize 33 [ 51.357262] extent refs 1 gen 530311 flags 2 [ 51.357262] ref#0: tree block backref root 258 [ 51.357263] item 196 key (390361219072 169 0) itemoff 9782 itemsize 33 [ 51.357263] extent refs 1 gen 530311 flags 2 [ 51.357264] ref#0: tree block backref root 258 [ 51.357265] item 197 key (390362005504 169 0) itemoff 9749 itemsize 33 [ 51.357265] extent refs 1 gen 553172 flags 2 [ 51.357265] ref#0: tree block backref root 2 [ 51.357266] item 198 key (390363054080 169 0) itemoff 9716 itemsize 33 [ 51.357267] extent refs 1 gen 554475 flags 2 [ 51.357267] ref#0: tree block backref root 7 [ 51.357268] item 199 key (390363316224 169 0) itemoff 9683 itemsize 33 [ 51.357269] extent refs 1 gen 519476 flags 2 [ 51.357269] ref#0: tree block backref root 258 [ 51.357270] item 200 key (390363512832 169 0) itemoff 9650 itemsize 33 [ 51.357270] extent refs 1 gen 554475 flags 2 [ 51.357271] ref#0: tree block backref root 258 [ 51.357272] item 201 key (390363545600 169 0) itemoff 9617 itemsize 33 [ 51.357272] extent refs 1 gen 554475 flags 2 [ 51.357272] ref#0: tree block backref root 258 [ 51.357273] item 202 key (390363643904 169 0) itemoff 9584 itemsize 33 [ 51.357274] extent refs 1 gen 554475 flags 2 [ 51.357274] ref#0: tree block backref root 7 [ 51.357275] item 203 key (390363807744 169 0) itemoff 9551 itemsize 33 [ 51.357275] extent refs 1 gen 553546 flags 2 [ 51.357276] ref#0: tree block backref root 258 [ 51.357277] item 204 key (390364135424 169 0) itemoff 9518 itemsize 33 [ 51.357277] extent refs 1 gen 553546 flags 2 [ 51.357278] ref#0: tree block backref root 7 [ 51.357278] item 205 key (390364299264 169 0) itemoff 9485 itemsize 33 [ 51.357279] extent refs 1 gen 553546 flags 2 [ 51.357279] ref#0: tree block backref root 258 [ 51.357280] item 206 key (390364774400 169 0) itemoff 9452 itemsize 33 [ 51.357281] extent refs 1 gen 553546 flags 2 [ 51.357281] ref#0: tree block backref root 258 [ 51.357283] BTRFS error (device dm-0): unable to find ref byte nr 390335463424 parent 0 root 2 owner 0 offset 0 [ 51.357285] ------------[ cut here ]------------ [ 51.357285] BTRFS: Transaction aborted (error -2) [ 51.357304] WARNING: CPU: 3 PID: 54 at fs/btrfs/extent-tree.c:6828 __btrfs_free_extent.isra.25+0x67b/0x940 [btrfs] [ 51.357304] Modules linked in: isofs thunderbolt ccm rfcomm fuse cmac snd_hda_codec_hdmi bnep snd_hda_codec_realtek snd_hda_codec_generic hid_multitouch joydev arc4 iTCO_wdt iTCO_vendor_support nls_iso8859_1 nls_cp437 vfat fat uvcvideo btusb btrtl videobuf2_vmalloc btbcm videobuf2_memops videobuf2_v4l2 btintel videobuf2_common ath10k_pci bluetooth ath10k_core videodev mousedev i915 intel_rapl ath snd_soc_skl snd_soc_hdac_hda ecdh_generic x86_pkg_temp_thermal intel_powerclamp snd_hda_ext_core media crc16 coretemp snd_soc_skl_ipc mac80211 uas snd_soc_sst_ipc kvm_intel snd_soc_sst_dsp snd_soc_acpi_intel_match kvmgt snd_soc_acpi vfio_mdev mdev mei_wdt dell_laptop vfio_iommu_type1 dell_wmi wmi_bmof snd_soc_core vfio intel_wmi_thunderbolt dell_smbios dell_wmi_descriptor snd_compress i2c_algo_bit dcdbas kvm ac97_bus snd_pcm_dmaengine drm_kms_helper snd_hda_intel snd_hda_codec cfg80211 irqbypass intel_cstate intel_uncore snd_hda_core snd_hwdep input_leds snd_pcm intel_rapl_perf drm snd_timer [ 51.357319] psmouse rtsx_pci_ms pcspkr memstick idma64 rfkill snd intel_gtt mei_me processor_thermal_device agpgart intel_soc_dts_iosf soundcore mei syscopyarea sysfillrect i2c_i801 sysimgblt fb_sys_fops intel_lpss_pci intel_lpss intel_pch_thermal ucsi_acpi tpm_crb typec_ucsi wmi typec i2c_hid battery soc_button_array intel_vbtn tpm_tis tpm_tis_core tpm int3403_thermal evdev int340x_thermal_zone mac_hid intel_hid rng_core ac int3400_thermal acpi_thermal_rel sparse_keymap pcc_cpufreq vboxnetflt(OE) vboxnetadp(OE) vboxpci(OE) vboxdrv(OE) sg crypto_user ip_tables x_tables btrfs libcrc32c crc32c_generic xor raid6_pq algif_skcipher af_alg sd_mod usb_storage scsi_mod hid_generic usbhid hid dm_crypt dm_mod crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel rtsx_pci_sdmmc mmc_core serio_raw atkbd libps2 aesni_intel aes_x86_64 xhci_pci crypto_simd cryptd glue_helper xhci_hcd rtsx_pci i8042 serio [ 51.357335] CPU: 3 PID: 54 Comm: kworker/u8:1 Tainted: G U W OE 4.20.6-arch1-1-ARCH #1 [ 51.357335] Hardware name: Dell Inc. XPS 13 9360/0PF86Y, BIOS 2.1.0 08/02/2017 [ 51.357347] Workqueue: btrfs-extent-refs btrfs_extent_refs_helper [btrfs] [ 51.357355] RIP: 0010:__btrfs_free_extent.isra.25+0x67b/0x940 [btrfs] [ 51.357356] Code: 08 48 8b 40 50 f0 48 0f ba a8 90 12 00 00 02 0f 92 c0 5f 84 c0 0f 85 cc 0f 09 00 44 89 ee 48 c7 c7 70 82 35 c0 e8 af 7e 5d df <0f> 0b e9 b6 0f 09 00 4c 89 e7 e8 a6 7d fe ff 48 8b 3c 24 4d 89 f8 [ 51.357356] RSP: 0018:ffffacf5c1b37c38 EFLAGS: 00010282 [ 51.357357] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 51.357358] RDX: 0000000000000007 RSI: ffffffffa08a427e RDI: 00000000ffffffff [ 51.357358] RBP: 0000005ae1ce8000 R08: 0000000000000001 R09: 00000000000006b2 [ 51.357359] R10: 0000000000000004 R11: 0000000000000000 R12: ffff9b03da498ee0 [ 51.357359] R13: 00000000fffffffe R14: 0000000000000000 R15: 0000000000000002 [ 51.357360] FS: 0000000000000000(0000) GS:ffff9b04ae380000(0000) knlGS:0000000000000000 [ 51.357361] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.357362] CR2: 00007f252cd16af0 CR3: 000000020140a006 CR4: 00000000003606e0 [ 51.357362] Call Trace: [ 51.357364] ? _raw_spin_lock+0x13/0x30 [ 51.357365] ? _raw_spin_unlock+0x16/0x30 [ 51.357376] ? btrfs_merge_delayed_refs+0x315/0x350 [btrfs] [ 51.357401] __btrfs_run_delayed_refs+0x6f2/0x10e0 [btrfs] [ 51.357403] ? preempt_count_add+0x79/0xb0 [ 51.357411] btrfs_run_delayed_refs+0x64/0x180 [btrfs] [ 51.357418] delayed_ref_async_start+0x81/0x90 [btrfs] [ 51.357428] normal_work_helper+0xbd/0x350 [btrfs] [ 51.357430] process_one_work+0x1eb/0x410 [ 51.357432] worker_thread+0x2d/0x3d0 [ 51.357433] ? process_one_work+0x410/0x410 [ 51.357434] kthread+0x112/0x130 [ 51.357435] ? kthread_park+0x80/0x80 [ 51.357437] ret_from_fork+0x35/0x40 [ 51.357438] ---[ end trace 0be7e900e0369796 ]--- [ 51.357439] BTRFS: error (device dm-0) in __btrfs_free_extent:6828: errno=-2 No such entry [ 51.357441] BTRFS info (device dm-0): forced readonly [ 51.357442] BTRFS: error (device dm-0) in btrfs_run_delayed_refs:2978: errno=-2 No such entry On Sat, Feb 16, 2019 at 9:46 PM Martin Pöhlmann <mpdeimos@xxxxxxxxx> wrote: > > Thanks a lot for your help. > > @Qu Wenruo: WIll zero log after completing the backup > @Chris Murphy: First of all, mount -ro,nologreplay works. > > dump-tree displays two items: > > # btrfs insp dump-tree -b 88560877568 --follow /dev/mapper/cryptroot > btrfs-progs v4.19.1 > leaf 88560877568 items 2 free space 15355 generation 554510 owner TREE_LOG > leaf 88560877568 flags 0x1(WRITTEN) backref revision 1 > fs uuid bbd941a4-5525-4ba6-a4d8-3ead02b8aae1 > chunk uuid 25cacaa1-59ec-4c71-92e0-4b31f7937521 > item 0 key (TREE_LOG ROOT_ITEM 258) itemoff 15844 itemsize 439 > generation 554510 root_dirid 0 bytenr 88560812032 level 1 refs 0 > lastsnap 0 byte_limit 0 bytes_used 376832 flags 0x0(none) > uuid 00000000-0000-0000-0000-000000000000 > drop key (0 UNKNOWN.0 0) level 0 > item 1 key (TREE_LOG ROOT_ITEM 259) itemoff 15405 itemsize 439 > generation 554510 root_dirid 0 bytenr 917389312 level 0 refs 0 > lastsnap 0 byte_limit 0 bytes_used 0 flags 0x0(none) > uuid 00000000-0000-0000-0000-000000000000 > drop key (0 UNKNOWN.0 0) level 0 > > > Regards 2nd mail: > > 1. as mentioned, mount with nologreplay works. Will update backups with that. > 2. Used btrfs restore already for initial backup. Did a good job. > 3. Have to figure out how to get a usb-bootable recovery system w/ 5.0rc6 first. > > On Sat, Feb 16, 2019 at 1:54 AM Qu Wenruo <quwenruo.btrfs@xxxxxxx> wrote: > > > > > > > > On 2019/2/16 上午5:31, Martin Pöhlmann wrote: > > > Hello, > > > > > > After a reboot I am lost with an unmountable BTRFS partition. Before > > > reboot I had first compile problems with freezing IntelliJ. These > > > persisted after a first reboot, after a second reboot I am faced with > > > the following error after entering the dm-crypt password (also after > > > manual mount with -o ro,recovery, see attached dmesg): > > > > [Move check result here] > > > # btrfs check --readonly /dev/mapper/cryptroot > > > [1/7] checking root items > > > [2/7] checking extents > > > [3/7] checking free space cache > > > [4/7] checking fs roots > > > root 258 inode 776 errors 200, dir isize wrong > > > root 258 inode 1131031 errors 1, no inode item > > > unresolved ref dir 776 index 87215 namelen 17 name > > > TransportSecurity filetype 1 errors 5, no dir item, no inode ref > > > root 258 inode 2911226 errors 1, no inode item > > > unresolved ref dir 776 index 160611 namelen 17 name > > > TransportSecurity filetype 1 errors 5, no dir item, no inode ref > > > ERROR: errors found in fs roots > > > Opening filesystem to check... > > > Checking filesystem on /dev/mapper/cryptroot > > > UUID: bbd941a4-5525-4ba6-a4d8-3ead02b8aae1 > > > found 409699909636 bytes used, error(s) found > > > total csum bytes: 390595732 > > > total tree bytes: 5061541888 > > > total fs tree bytes: 4224024576 > > > total extent tree bytes: 339312640 > > > btree space waste bytes: 892618468 > > > file data blocks allocated: 529336496128 > > > referenced 490479570944 > > > > > So there is just some minor problem in fs trees, not a big problem, and > > your extent tree passes the check, so it's not on-disk data corruption. > > > > > > > > [ 6098.921985] BTRFS error (device dm-0): unable to find ref byte nr > > > 390335463424 parent 0 root 2 > > > [ 6098.922473] BTRFS: error (device dm-0) in __btrfs_free_extent:6828: > > > errno=-2 No such entry > > > [ 6098.922526] BTRFS: error (device dm-0) in > > > btrfs_run_delayed_refs:2978: errno=-2 No such entry > > > [ 6098.922601] BTRFS: error (device dm-0) in btrfs_replay_log:2267: > > > errno=-2 No such entry (Failed to recover log tree) > > > [ 6098.972326] BTRFS error (device dm-0): open_ctree failed > > > > It's log recovery causing problem. > > > > You could just use "btrfs rescue zero-log" to recovery it. > > > > Thanks, > > Qu > > > > > > > > I've searched for a solution on the web, but most articles tell to do > > > nothing, but write to this mailing list. So my hopes are that you can > > > shed some light into what I can do. > > > > > > I've found a quite recent thread here > > > (https://lore.kernel.org/linux-btrfs/5b0d2e94-6e4e-aecd-3eda-459c4a96bb13@xxxxxxxxxxxxxx/) > > > but this just mentions a fix for 'Fix missing reference aborts when > > > resuming snapshot delete' and is not further specific. > > > > > > Setup of my SSD looks like: > > > > > > * efi > > > * dm-crypt plain. Contains BTRFS (w/o lvm or similar). Several > > > subvolumes (/, /home, ...) > > > * swap > > > > > > I've already run btrfs restore on volid 258 (home) and gathered lots > > > of data from the disk (>200GB). I also have a dd backup of the > > > cryptroot after the failure happened (in case something goes wrong). > > > Besides I did not do any fix attempts yet. If there is anything I can > > > do to get the system working again, I'm happy to hear. > > > > > > Thanks! > > > > > > My Linux system is Arch Linux (up to date), logs below come from the > > > Arch install medium . > > > > > > # uname -a > > > Linux archiso 4.20.6-arch1-1-ARCH #1 SMP PREEMPT Thu Jan 31 08:22:01 > > > UTC 2019 x86_64 GNU/Linux > > > > > > # btrfs --version > > > btrfs-progs v4.19.1 > > > > > > # btrfs fi show > > > Label: 'root' uuid: bbd941a4-5525-4ba6-a4d8-3ead02b8aae1 > > > Total devices 1 FS bytes used 381.56GiB > > > devid 1 size 460.39GiB used 393.01GiB path /dev/mapper/cryptroot > > > > >
