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* __btrfs_free_extent error after suspend resume
@ 2019-11-06  0:01 Leonard Lausen
  2019-11-07  2:05 ` Leonard Lausen
  0 siblings, 1 reply; 4+ messages in thread
From: Leonard Lausen @ 2019-11-06  0:01 UTC (permalink / raw)
  To: linux-btrfs; +Cc: Qu Wenruo

Hi,

I just found my btrfs filesystem to be remounted read-only with the
stacktrace below. (Similar experience to 87d0oyw46b.fsf@lausen.nl
earlier this year). Similar to <20191018025604.GA31526@merlins.org>, I
experience the following stacktrace following a suspend / resume cycle.
The system runs Linux 5.3.8 (unlike 5.1.21 in the previous report),
suggesting that the bug is around for a few months already.
Prior to suspension, I ran several compilation jobs. They all finished
without error.

You may find the output of

  sudo btrfs inspect dump-tree -t root

and

  sudo btrfs inspect dump-super

at http://termbin.com/ddxq and http://termbin.com/4mqt

The stacktrace is pasted below at the complete dmesg output at http://termbin.com/kr2j

As the bug affects the root partition, I suspect I won't be able to
boot the system after turning it off. Thus I leave it running for now
and can provide you with further information if so instructed.

Please also let me know if you suspect any chance to repair this
filesystem.

Best regards
Leonard


[354437.150593] ------------[ cut here ]------------
[354437.150639] WARNING: CPU: 3 PID: 9095 at fs/btrfs/extent-tree.c:4851 __btrfs_free_extent+0x20d/0x8fd [btrfs]
[354437.150641] Modules linked in: rfcomm cmac bnep msr bridge stp llc ip_tables x_tables serpent_sse2_x86_64 serpent_avx2 serpent_avx_x86_64 algif_skcipher dm_zero dm_thin_pool dm_persistent_data dm_bio_prison dm_service_time dm_round_robin dm_queue_length dm_multipath dm_log_userspace dm_flakey dm_delay virtio_scsi virtio_console sha1_generic iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ixgb ixgbe samsung_sxgbe tulip cxgb3 cxgb mdio cxgb4 vxge vxlan ip6_udp_tunnel udp_tunnel macvlan vmxnet3 virtio_net net_failover failover tg3 sky2 r8169 libphy pcnet32 mii igb dca e1000 bnx2 atl1c fuse overlay nfs lockd grace sunrpc btrfs zstd_decompress zstd_compress xxhash multipath linear raid10 raid1 raid0 dm_raid raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq dm_snapshot dm_bufio dm_mirror dm_region_hash dm_log firewire_sbp2 firewire_ohci firewire_core hid_sunplus hid_sony hid_samsung hid_pl hid_petalynx hid_monterey hid_microsoft hid_gyration hid_ezkey
[354437.150664]  hid_cypress hid_chicony hid_cherry hid_belkin hid_a4tech sl811_hcd xhci_plat_hcd usb_storage mpt3sas raid_class aic94xx libsas lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm megaraid aacraid sx8 hpsa 3w_9xxx 3w_xxxx mptsas mptfc scsi_transport_fc mptspi mptscsih mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth initio BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg pdc_adma sata_inic162x sata_mv ata_piix ahci libahci sata_qstor sata_vsc sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil sata_promise pata_sl82c105 pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_pdc202xx_old pata_triflex pata_atiixp pata_amd pata_ali pata_it8213 pata_pcmcia pcmcia pcmcia_core pata_ns87415 pata_ns87410 pata_serverworks pata_artop pata_it821x pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366 pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x pata_mpiix snd_hda_codec_hdmi btusb btrtl btbcm btintel uvcvideo bluetooth
[354437.150694]  videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev ecdh_generic ecc videobuf2_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel ath10k_pci ath10k_core ath mac80211 i915 i2c_algo_bit aesni_intel snd_hda_intel dell_laptop dell_wmi ledtrig_audio snd_hda_codec drm_kms_helper dell_smbios rtsx_pci_sdmmc intel_rapl_msr wmi_bmof sparse_keymap dell_wmi_descriptor aes_x86_64 cfg80211 input_leds crypto_simd snd_hda_core snd_hwdep cryptd drm dcdbas snd_pcm glue_helper i2c_i801 mmc_core rfkill processor_thermal_device libarc4 pcspkr serio_raw intel_rapl_common intel_pch_thermal intel_soc_dts_iosf iosf_mbi wmi int3403_thermal int340x_thermal_zone int3400_thermal acpi_thermal_rel joydev
[354437.150717] CPU: 3 PID: 9095 Comm: kworker/3:1 Tainted: G        W         5.3.6-gentoo-r1 #2
[354437.150718] Hardware name: Dell Inc. XPS 13 9360/06CC14, BIOS 2.11.0 03/14/2019
[354437.150729] Workqueue: events do_async_commit [btrfs]
[354437.150737] RIP: 0010:__btrfs_free_extent+0x20d/0x8fd [btrfs]
[354437.150739] Code: 48 83 eb 19 44 29 e8 83 f8 05 0f 8f a7 04 00 00 41 ff cd eb 88 83 fb fe 0f 85 9d 06 00 00 48 c7 c7 44 d5 17 c1 e8 47 6f fb d3 <0f> 0b 48 8b 7d 00 e8 26 26 00 00 4d 89 f0 4c 89 e9 48 c7 c6 4f dd
[354437.150740] RSP: 0018:ffff8e0b8605fc28 EFLAGS: 00010246
[354437.150741] RAX: 0000000000000024 RBX: 00000000fffffffe RCX: 0000000000000000
[354437.150742] RDX: 0000000000000000 RSI: ffff8ae42e397338 RDI: ffff8ae42e397338
[354437.150743] RBP: ffff8ae2a2bac310 R08: 0000000000000006 R09: ffffffff9f4db100
[354437.150744] R10: 0000000000003388 R11: ffff8e0b8605fad0 R12: ffff8ae2e9ec0208
[354437.150745] R13: 000001426cccc000 R14: 0000000000000101 R15: 00000000956e0000
[354437.150746] FS:  0000000000000000(0000) GS:ffff8ae42e380000(0000) knlGS:0000000000000000
[354437.150746] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[354437.150747] CR2: 00000000008c5487 CR3: 000000046a108001 CR4: 00000000003606e0
[354437.150748] Call Trace:
[354437.150758]  __btrfs_run_delayed_refs+0x690/0xc6c [btrfs]
[354437.150762]  ? __switch_to_asm+0x40/0x70
[354437.150770]  btrfs_run_delayed_refs+0x5e/0x149 [btrfs]
[354437.150778]  btrfs_commit_transaction+0x78/0x8a0 [btrfs]
[354437.150780]  ? __switch_to_asm+0x34/0x70
[354437.150781]  ? __switch_to_asm+0x40/0x70
[354437.150782]  ? __switch_to_asm+0x34/0x70
[354437.150783]  ? __switch_to_asm+0x40/0x70
[354437.150784]  ? __switch_to_asm+0x34/0x70
[354437.150792]  do_async_commit+0x1d/0x27 [btrfs]
[354437.150795]  process_one_work+0x16e/0x24e
[354437.150797]  ? rescuer_thread+0x28c/0x28c
[354437.150798]  worker_thread+0x1dc/0x2ac
[354437.150799]  kthread+0x10b/0x113
[354437.150801]  ? kthread_park+0x89/0x89
[354437.150802]  ret_from_fork+0x35/0x40
[354437.150804] ---[ end trace 85833d33b2b02bcf ]---
[354437.150807] BTRFS info (device dm-2): leaf 1426551308288 gen 2402058 total ptrs 138 free space 3656 owner 2
[354437.150808] 	item 0 key (1776065458176 168 262144) itemoff 16233 itemsize 50
[354437.150808] 		extent refs 2 gen 2399043 flags 1
[354437.150809] 		ref#0: shared data backref parent 1385529737216 count 1
[354437.150809] 		ref#1: shared data backref parent 1383731085312 count 1
[354437.150810] 	item 1 key (1776065720320 168 262144) itemoff 16157 itemsize 76
[354437.150811] 		extent refs 4 gen 2399043 flags 1
[354437.150811] 		ref#0: shared data backref parent 1478537773056 count 1
[354437.150812] 		ref#1: shared data backref parent 1469189111808 count 1
[354437.150812] 		ref#2: shared data backref parent 1385529737216 count 1
[354437.150813] 		ref#3: shared data backref parent 1384804827136 count 1
[354437.150814] 	item 2 key (1776066007040 168 4526080) itemoff 16104 itemsize 53
[354437.150814] 		extent refs 1 gen 1220365 flags 1
[354437.150814] 		ref#0: extent data backref root 2829 objectid 28509 offset 55762944 count 1
[354437.150816] 	item 3 key (1776070533120 168 262144) itemoff 16041 itemsize 63
[354437.150816] 		extent refs 3 gen 2399043 flags 1
[354437.150816] 		ref#0: shared data backref parent 1469189111808 count 1
[354437.150817] 		ref#1: shared data backref parent 1385529737216 count 1
[354437.150817] 		ref#2: shared data backref parent 1384804827136 count 1
[354437.150818] 	item 4 key (1776070795264 168 262144) itemoff 16004 itemsize 37
[354437.150819] 		extent refs 1 gen 2399043 flags 1
[354437.150819] 		ref#0: shared data backref parent 1384804827136 count 1
[354437.150820] 	item 5 key (1776071057408 168 262144) itemoff 15889 itemsize 115
[354437.150820] 		extent refs 7 gen 2399043 flags 1
[354437.150820] 		ref#0: shared data backref parent 1571827269632 count 1
[354437.150821] 		ref#1: shared data backref parent 1515792695296 count 1
[354437.150822] 		ref#2: shared data backref parent 1483800084480 count 1
[354437.150822] 		ref#3: shared data backref parent 1478537773056 count 1
[354437.150823] 		ref#4: shared data backref parent 1469189111808 count 1
[354437.150823] 		ref#5: shared data backref parent 1385529737216 count 1
[354437.150824] 		ref#6: shared data backref parent 1384804827136 count 1
[354437.150824] 	item 6 key (1776071319552 168 262144) itemoff 15761 itemsize 128
[354437.150825] 		extent refs 8 gen 2399043 flags 1
[354437.150825] 		ref#0: shared data backref parent 1571827269632 count 1
[354437.150826] 		ref#1: shared data backref parent 1515792695296 count 1
[354437.150826] 		ref#2: shared data backref parent 1483800084480 count 1
[354437.150827] 		ref#3: shared data backref parent 1478537773056 count 1
[354437.150827] 		ref#4: shared data backref parent 1469189111808 count 1
[354437.150828] 		ref#5: shared data backref parent 1385529737216 count 1
[354437.150828] 		ref#6: shared data backref parent 1385250930688 count 1
[354437.150829] 		ref#7: shared data backref parent 1384804827136 count 1
[354437.150830] 	item 7 key (1776071581696 168 262144) itemoff 15685 itemsize 76
[354437.150830] 		extent refs 4 gen 2399043 flags 1
[354437.150830] 		ref#0: shared data backref parent 1478537773056 count 1
[354437.150831] 		ref#1: shared data backref parent 1469189111808 count 1
[354437.150831] 		ref#2: shared data backref parent 1385529737216 count 1
[354437.150832] 		ref#3: shared data backref parent 1384804827136 count 1
[354437.150833] 	item 8 key (1776071843840 168 262144) itemoff 15596 itemsize 89
[354437.150833] 		extent refs 5 gen 2399043 flags 1
[354437.150833] 		ref#0: shared data backref parent 1483800084480 count 1
[354437.150834] 		ref#1: shared data backref parent 1478537773056 count 1
[354437.150834] 		ref#2: shared data backref parent 1469189111808 count 1
[354437.150835] 		ref#3: shared data backref parent 1385529737216 count 1
[354437.150835] 		ref#4: shared data backref parent 1384804827136 count 1
[354437.150836] 	item 9 key (1776072105984 168 262144) itemoff 15520 itemsize 76
[354437.150837] 		extent refs 4 gen 2399043 flags 1
[354437.150837] 		ref#0: shared data backref parent 1478537773056 count 1
[354437.150837] 		ref#1: shared data backref parent 1469189111808 count 1
[354437.150838] 		ref#2: shared data backref parent 1385529737216 count 1
[354437.150838] 		ref#3: shared data backref parent 1384804827136 count 1
[354437.150839] 	item 10 key (1776072368128 168 262144) itemoff 15444 itemsize 76
[354437.150840] 		extent refs 5 gen 2399043 flags 1
[354437.150840] 		ref#0: shared data backref parent 1478537773056 count 2
[354437.150841] 		ref#1: shared data backref parent 1469189111808 count 1
[354437.150841] 		ref#2: shared data backref parent 1385529737216 count 1
[354437.150842] 		ref#3: shared data backref parent 1384804827136 count 1
[354437.150842] 	item 11 key (1776072630272 168 262144) itemoff 15329 itemsize 115
[354437.150843] 		extent refs 7 gen 2399043 flags 1
[354437.150843] 		ref#0: shared data backref parent 1571827269632 count 1
[354437.150844] 		ref#1: shared data backref parent 1515792695296 count 1
[354437.150844] 		ref#2: shared data backref parent 1483800084480 count 1
[354437.150845] 		ref#3: shared data backref parent 1478537773056 count 1
[354437.150845] 		ref#4: shared data backref parent 1469189111808 count 1
[354437.150846] 		ref#5: shared data backref parent 1385529737216 count 1
[354437.150846] 		ref#6: shared data backref parent 1384804827136 count 1
[354437.150847] 	item 12 key (1776072892416 168 262144) itemoff 15240 itemsize 89
[354437.150847] 		extent refs 5 gen 2399043 flags 1
[354437.150848] 		ref#0: shared data backref parent 1483800084480 count 1
[354437.150848] 		ref#1: shared data backref parent 1478537773056 count 1
[354437.150849] 		ref#2: shared data backref parent 1469189111808 count 1
[354437.150849] 		ref#3: shared data backref parent 1385529737216 count 1
[354437.150850] 		ref#4: shared data backref parent 1384804827136 count 1
[354437.150851] 	item 13 key (1776073154560 168 262144) itemoff 15125 itemsize 115
[354437.150851] 		extent refs 7 gen 2399043 flags 1
[354437.150851] 		ref#0: shared data backref parent 1571827286016 count 1
[354437.150852] 		ref#1: shared data backref parent 1515792728064 count 1
[354437.150852] 		ref#2: shared data backref parent 1483638177792 count 1
[354437.150853] 		ref#3: shared data backref parent 1478537805824 count 1
[354437.150853] 		ref#4: shared data backref parent 1469189111808 count 1
[354437.150854] 		ref#5: shared data backref parent 1385529737216 count 1
[354437.150854] 		ref#6: shared data backref parent 1384804827136 count 1
[354437.150855] 	item 14 key (1776073416704 168 262144) itemoff 15088 itemsize 37
[354437.150856] 		extent refs 1 gen 2399043 flags 1
[354437.150856] 		ref#0: shared data backref parent 1384804892672 count 1
[354437.150857] 	item 15 key (1776073678848 168 262144) itemoff 15012 itemsize 76
[354437.150857] 		extent refs 4 gen 2399043 flags 1
[354437.150857] 		ref#0: shared data backref parent 1478537805824 count 1
[354437.150858] 		ref#1: shared data backref parent 1469188898816 count 1
[354437.150858] 		ref#2: shared data backref parent 1385534652416 count 1
[354437.150859] 		ref#3: shared data backref parent 1384804892672 count 1
[354437.150860] 	item 16 key (1776073940992 168 393216) itemoff 14884 itemsize 128
[354437.150860] 		extent refs 8 gen 2399043 flags 1
[354437.150860] 		ref#0: shared data backref parent 1571827286016 count 1
[354437.150861] 		ref#1: shared data backref parent 1515792728064 count 1
[354437.150861] 		ref#2: shared data backref parent 1483638177792 count 1
[354437.150862] 		ref#3: shared data backref parent 1478537805824 count 1
[354437.150862] 		ref#4: shared data backref parent 1469188898816 count 1
[354437.150863] 		ref#5: shared data backref parent 1385534652416 count 1
[354437.150864] 		ref#6: shared data backref parent 1385251684352 count 1
[354437.150864] 		ref#7: shared data backref parent 1384804892672 count 1
[354437.150865] 	item 17 key (1776074334208 168 262144) itemoff 14626 itemsize 258
[354437.150865] 		extent refs 19 gen 2399043 flags 1
[354437.150866] 		ref#0: shared data backref parent 1571827286016 count 1
[354437.150866] 		ref#1: shared data backref parent 1571768385536 count 1
[354437.150867] 		ref#2: shared data backref parent 1515792728064 count 1
[354437.150867] 		ref#3: shared data backref parent 1483744641024 count 1
[354437.150868] 		ref#4: shared data backref parent 1483638177792 count 1
[354437.150868] 		ref#5: shared data backref parent 1478537805824 count 1
[354437.150869] 		ref#6: shared data backref parent 1469188898816 count 1
[354437.150869] 		ref#7: shared data backref parent 1468957556736 count 1
[354437.150870] 		ref#8: shared data backref parent 1468373499904 count 2
[354437.150870] 		ref#9: shared data backref parent 1452915392512 count 1
[354437.150871] 		ref#10: shared data backref parent 1452214419456 count 1
[354437.150871] 		ref#11: shared data backref parent 1385534652416 count 1
[354437.150872] 		ref#12: shared data backref parent 1385251684352 count 1
[354437.150872] 		ref#13: shared data backref parent 1384934653952 count 1
[354437.150873] 		ref#14: shared data backref parent 1384831401984 count 1
[354437.150873] 		ref#15: shared data backref parent 1384804892672 count 1
[354437.150874] 		ref#16: shared data backref parent 1321904685056 count 1
[354437.150874] 		ref#17: shared data backref parent 1321555132416 count 1
[354437.150875] 	item 18 key (1776074596352 168 262144) itemoff 14576 itemsize 50
[354437.150876] 		extent refs 2 gen 2399043 flags 1
[354437.150876] 		ref#0: shared data backref parent 1385534652416 count 1
[354437.150877] 		ref#1: shared data backref parent 1384804892672 count 1
[354437.150877] 	item 19 key (1776074907648 168 262144) itemoff 14474 itemsize 102
[354437.150878] 		extent refs 6 gen 2399058 flags 1
[354437.150878] 		ref#0: shared data backref parent 1571827236864 count 1
[354437.150879] 		ref#1: shared data backref parent 1515792482304 count 1
[354437.150879] 		ref#2: shared data backref parent 1483799920640 count 1
[354437.150880] 		ref#3: shared data backref parent 1478537527296 count 1
[354437.150880] 		ref#4: shared data backref parent 1469187604480 count 1
[354437.150881] 		ref#5: shared data backref parent 1385522872320 count 1
[354437.150881] 	item 20 key (1776075169792 168 262144) itemoff 14411 itemsize 63
[354437.150882] 		extent refs 3 gen 2399058 flags 1
[354437.150882] 		ref#0: shared data backref parent 1478537576448 count 1
[354437.150883] 		ref#1: shared data backref parent 1469187604480 count 1
[354437.150883] 		ref#2: shared data backref parent 1385522872320 count 1
[354437.150884] 	item 21 key (1776075431936 168 262144) itemoff 14322 itemsize 89
[354437.150884] 		extent refs 5 gen 2399058 flags 1
[354437.150885] 		ref#0: shared data backref parent 1515792482304 count 1
[354437.150885] 		ref#1: shared data backref parent 1483800068096 count 1
[354437.150886] 		ref#2: shared data backref parent 1478537576448 count 1
[354437.150886] 		ref#3: shared data backref parent 1469187604480 count 1
[354437.150887] 		ref#4: shared data backref parent 1385522872320 count 1
[354437.150888] 	item 22 key (1776075694080 168 524288) itemoff 14259 itemsize 63
[354437.150888] 		extent refs 4 gen 2399058 flags 1
[354437.150888] 		ref#0: shared data backref parent 1478537691136 count 1
[354437.150889] 		ref#1: shared data backref parent 1469188751360 count 2
[354437.150889] 		ref#2: shared data backref parent 1385526755328 count 1
[354437.150890] 	item 23 key (1776076218368 168 262144) itemoff 14196 itemsize 63
[354437.150890] 		extent refs 3 gen 2399058 flags 1
[354437.150891] 		ref#0: shared data backref parent 1478537691136 count 1
[354437.150891] 		ref#1: shared data backref parent 1469188751360 count 1
[354437.150892] 		ref#2: shared data backref parent 1385526755328 count 1
[354437.150893] 	item 24 key (1776076480512 168 524288) itemoff 14094 itemsize 102
[354437.150893] 		extent refs 6 gen 2399058 flags 1
[354437.150893] 		ref#0: shared data backref parent 1571827335168 count 1
[354437.150894] 		ref#1: shared data backref parent 1515792531456 count 1
[354437.150894] 		ref#2: shared data backref parent 1483800100864 count 1
[354437.150895] 		ref#3: shared data backref parent 1478537691136 count 1
[354437.150895] 		ref#4: shared data backref parent 1469188751360 count 1
[354437.150896] 		ref#5: shared data backref parent 1385526755328 count 1
[354437.150897] 	item 25 key (1776077004800 168 262144) itemoff 13992 itemsize 102
[354437.150897] 		extent refs 6 gen 2399058 flags 1
[354437.150897] 		ref#0: shared data backref parent 1571827335168 count 1
[354437.150898] 		ref#1: shared data backref parent 1515792531456 count 1
[354437.150898] 		ref#2: shared data backref parent 1483800100864 count 1
[354437.150899] 		ref#3: shared data backref parent 1478537691136 count 1
[354437.150899] 		ref#4: shared data backref parent 1469188751360 count 1
[354437.150900] 		ref#5: shared data backref parent 1385526755328 count 1
[354437.150901] 	item 26 key (1776077266944 168 524288) itemoff 13903 itemsize 89
[354437.150901] 		extent refs 5 gen 2399058 flags 1
[354437.150901] 		ref#0: shared data backref parent 1515792531456 count 1
[354437.150902] 		ref#1: shared data backref parent 1483800084480 count 1
[354437.150902] 		ref#2: shared data backref parent 1478537773056 count 1
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[354437.151046] 		extent refs 1 gen 2399058 flags 1
[354437.151046] 		ref#0: shared data backref parent 1426547474432 count 1
[354437.151047] 	item 84 key (1776109764608 168 524288) itemoff 10295 itemsize 37
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[354437.151048] 	item 85 key (1776110288896 168 393216) itemoff 10258 itemsize 37
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[354437.151049] 		ref#0: shared data backref parent 1426547474432 count 1
[354437.151050] 	item 86 key (1776110682112 168 262144) itemoff 10208 itemsize 50
[354437.151050] 		extent refs 2 gen 2399058 flags 1
[354437.151051] 		ref#0: shared data backref parent 1469123837952 count 1
[354437.151051] 		ref#1: shared data backref parent 1426547474432 count 1
[354437.151052] 	item 87 key (1776110944256 168 262144) itemoff 10171 itemsize 37
[354437.151052] 		extent refs 1 gen 2399058 flags 1
[354437.151053] 		ref#0: shared data backref parent 1426547474432 count 1
[354437.151053] 	item 88 key (1776111333376 168 262144) itemoff 10118 itemsize 53
[354437.151054] 		extent refs 1 gen 1151293 flags 1
[354437.151054] 		ref#0: extent data backref root 257 objectid 10994497 offset 682188800 count 1
[354437.151055] 	item 89 key (1776111595520 168 262144) itemoff 9938 itemsize 180
[354437.151056] 		extent refs 12 gen 2399067 flags 1
[354437.151056] 		ref#0: shared data backref parent 1571787866112 count 1
[354437.151056] 		ref#1: shared data backref parent 1571557933056 count 1
[354437.151057] 		ref#2: shared data backref parent 1515777179648 count 1
[354437.151057] 		ref#3: shared data backref parent 1483789385728 count 1
[354437.151058] 		ref#4: shared data backref parent 1478519947264 count 1
[354437.151058] 		ref#5: shared data backref parent 1469117284352 count 1
[354437.151059] 		ref#6: shared data backref parent 1452902154240 count 1
[354437.151059] 		ref#7: shared data backref parent 1452166561792 count 1
[354437.151060] 		ref#8: shared data backref parent 1426536103936 count 1
[354437.151061] 		ref#9: shared data backref parent 1385234546688 count 1
[354437.151061] 		ref#10: shared data backref parent 1384539193344 count 1
[354437.151062] 		ref#11: shared data backref parent 1321419735040 count 1
[354437.151062] 	item 90 key (1776111857664 168 262144) itemoff 9862 itemsize 76
[354437.151063] 		extent refs 4 gen 2399058 flags 1
[354437.151063] 		ref#0: shared data backref parent 1483791351808 count 1
[354437.151064] 		ref#1: shared data backref parent 1478528368640 count 1
[354437.151064] 		ref#2: shared data backref parent 1469123837952 count 1
[354437.151065] 		ref#3: shared data backref parent 1426547474432 count 1
[354437.151066] 	item 91 key (1776112119808 168 262144) itemoff 9825 itemsize 37
[354437.151066] 		extent refs 1 gen 2399071 flags 1
[354437.151066] 		ref#0: shared data backref parent 1426548834304 count 1
[354437.151067] 	item 92 key (1776112381952 168 262144) itemoff 9788 itemsize 37
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[354437.151069] 		ref#0: shared data backref parent 1426547474432 count 1
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[354437.151072] 		ref#0: shared data backref parent 1426547474432 count 1
[354437.151073] 	item 96 key (1776113692672 168 262144) itemoff 9640 itemsize 37
[354437.151073] 		extent refs 1 gen 2399058 flags 1
[354437.151074] 		ref#0: shared data backref parent 1426547474432 count 1
[354437.151075] 	item 97 key (1776113954816 168 262144) itemoff 9603 itemsize 37
[354437.151075] 		extent refs 1 gen 2399071 flags 1
[354437.151075] 		ref#0: shared data backref parent 1426579374080 count 1
[354437.151076] 	item 98 key (1776114216960 168 262144) itemoff 9566 itemsize 37
[354437.151076] 		extent refs 1 gen 2399072 flags 1
[354437.151077] 		ref#0: shared data backref parent 1426579374080 count 1
[354437.151078] 	item 99 key (1776114479104 168 262144) itemoff 9529 itemsize 37
[354437.151078] 		extent refs 1 gen 2399058 flags 1
[354437.151078] 		ref#0: shared data backref parent 1426547474432 count 1
[354437.151079] 	item 100 key (1776114741248 168 262144) itemoff 9401 itemsize 128
[354437.151079] 		extent refs 8 gen 2399058 flags 1
[354437.151080] 		ref#0: shared data backref parent 1714666438656 count 1
[354437.151080] 		ref#1: shared data backref parent 1515779833856 count 1
[354437.151081] 		ref#2: shared data backref parent 1483791351808 count 1
[354437.151081] 		ref#3: shared data backref parent 1478528368640 count 1
[354437.151082] 		ref#4: shared data backref parent 1469123837952 count 1
[354437.151082] 		ref#5: shared data backref parent 1452904153088 count 1
[354437.151083] 		ref#6: shared data backref parent 1426547474432 count 1
[354437.151083] 		ref#7: shared data backref parent 1385237217280 count 1
[354437.151084] 	item 101 key (1776115003392 168 262144) itemoff 9364 itemsize 37
[354437.151085] 		extent refs 1 gen 2399058 flags 1
[354437.151085] 		ref#0: shared data backref parent 1426547474432 count 1
[354437.151086] 	item 102 key (1776115265536 168 262144) itemoff 9327 itemsize 37
[354437.151086] 		extent refs 1 gen 2399058 flags 1
[354437.151086] 		ref#0: shared data backref parent 1426547474432 count 1
[354437.151087] 	item 103 key (1776115527680 168 262144) itemoff 9290 itemsize 37
[354437.151088] 		extent refs 1 gen 2399058 flags 1
[354437.151088] 		ref#0: shared data backref parent 1426547474432 count 1
[354437.151096] 	item 104 key (1776115789824 168 262144) itemoff 9227 itemsize 63
[354437.151097] 		extent refs 3 gen 2399058 flags 1
[354437.151098] 		ref#0: shared data backref parent 1478528368640 count 1
[354437.151099] 		ref#1: shared data backref parent 1469123837952 count 1
[354437.151099] 		ref#2: shared data backref parent 1426547474432 count 1
[354437.151101] 	item 105 key (1776116051968 168 262144) itemoff 9190 itemsize 37
[354437.151101] 		extent refs 1 gen 2399058 flags 1
[354437.151102] 		ref#0: shared data backref parent 1426547474432 count 1
[354437.151103] 	item 106 key (1776116314112 168 262144) itemoff 9114 itemsize 76
[354437.151103] 		extent refs 4 gen 2399058 flags 1
[354437.151104] 		ref#0: shared data backref parent 1478528368640 count 1
[354437.151104] 		ref#1: shared data backref parent 1469123837952 count 1
[354437.151105] 		ref#2: shared data backref parent 1427070894080 count 1
[354437.151106] 		ref#3: shared data backref parent 1426590777344 count 1
[354437.151107] 	item 107 key (1776116576256 168 262144) itemoff 9064 itemsize 50
[354437.151108] 		extent refs 2 gen 2399058 flags 1
[354437.151108] 		ref#0: shared data backref parent 1427070894080 count 1
[354437.151109] 		ref#1: shared data backref parent 1426590777344 count 1
[354437.151110] 	item 108 key (1776116838400 168 524288) itemoff 8988 itemsize 76
[354437.151110] 		extent refs 4 gen 2399058 flags 1
[354437.151111] 		ref#0: shared data backref parent 1478528368640 count 1
[354437.151111] 		ref#1: shared data backref parent 1469123837952 count 1
[354437.151112] 		ref#2: shared data backref parent 1427070894080 count 1
[354437.151113] 		ref#3: shared data backref parent 1426590777344 count 1
[354437.151114] 	item 109 key (1776117493760 168 262144) itemoff 8935 itemsize 53
[354437.151114] 		extent refs 1 gen 1151293 flags 1
[354437.151115] 		ref#0: extent data backref root 257 objectid 10994497 offset 683573248 count 1
[354437.151116] 	item 110 key (1776117755904 168 262144) itemoff 8846 itemsize 89
[354437.151117] 		extent refs 5 gen 2399058 flags 1
[354437.151117] 		ref#0: shared data backref parent 1483791351808 count 1
[354437.151118] 		ref#1: shared data backref parent 1478528368640 count 1
[354437.151119] 		ref#2: shared data backref parent 1469123837952 count 1
[354437.151119] 		ref#3: shared data backref parent 1427070894080 count 1
[354437.151120] 		ref#4: shared data backref parent 1426590777344 count 1
[354437.151121] 	item 111 key (1776118018048 168 262144) itemoff 8770 itemsize 76
[354437.151122] 		extent refs 4 gen 2399058 flags 1
[354437.151122] 		ref#0: shared data backref parent 1478528483328 count 1
[354437.151123] 		ref#1: shared data backref parent 1469123969024 count 1
[354437.151124] 		ref#2: shared data backref parent 1427070894080 count 1
[354437.151125] 		ref#3: shared data backref parent 1426590777344 count 1
[354437.151127] 	item 112 key (1776118280192 168 262144) itemoff 8720 itemsize 50
[354437.151128] 		extent refs 2 gen 2399068 flags 1
[354437.151128] 		ref#0: shared data backref parent 1469123837952 count 1
[354437.151129] 		ref#1: shared data backref parent 1426547474432 count 1
[354437.151130] 	item 113 key (1776118542336 168 262144) itemoff 8657 itemsize 63
[354437.151131] 		extent refs 3 gen 2399058 flags 1
[354437.151131] 		ref#0: shared data backref parent 1469123969024 count 1
[354437.151132] 		ref#1: shared data backref parent 1427070894080 count 1
[354437.151132] 		ref#2: shared data backref parent 1426590777344 count 1
[354437.151133] 	item 114 key (1776118804480 168 262144) itemoff 8607 itemsize 50
[354437.151134] 		extent refs 2 gen 2399058 flags 1
[354437.151135] 		ref#0: shared data backref parent 1427070894080 count 1
[354437.151135] 		ref#1: shared data backref parent 1426590777344 count 1
[354437.151136] 	item 115 key (1776119066624 168 262144) itemoff 8557 itemsize 50
[354437.151137] 		extent refs 2 gen 2399058 flags 1
[354437.151137] 		ref#0: shared data backref parent 1427070894080 count 1
[354437.151138] 		ref#1: shared data backref parent 1426590777344 count 1
[354437.151139] 	item 116 key (1776119328768 168 262144) itemoff 8507 itemsize 50
[354437.151140] 		extent refs 2 gen 2399070 flags 1
[354437.151140] 		ref#0: shared data backref parent 1469123837952 count 1
[354437.151141] 		ref#1: shared data backref parent 1426547474432 count 1
[354437.151142] 	item 117 key (1776119590912 168 262144) itemoff 8457 itemsize 50
[354437.151143] 		extent refs 2 gen 2399058 flags 1
[354437.151143] 		ref#0: shared data backref parent 1427070894080 count 1
[354437.151144] 		ref#1: shared data backref parent 1426590777344 count 1
[354437.151145] 	item 118 key (1776119853056 168 262144) itemoff 8290 itemsize 167
[354437.151146] 		extent refs 11 gen 2399058 flags 1
[354437.151146] 		ref#0: shared data backref parent 1571793682432 count 1
[354437.151147] 		ref#1: shared data backref parent 1571572596736 count 1
[354437.151147] 		ref#2: shared data backref parent 1515779866624 count 1
[354437.151148] 		ref#3: shared data backref parent 1483791384576 count 1
[354437.151149] 		ref#4: shared data backref parent 1478528483328 count 1
[354437.151150] 		ref#5: shared data backref parent 1469123969024 count 1
[354437.151150] 		ref#6: shared data backref parent 1468514566144 count 1
[354437.151151] 		ref#7: shared data backref parent 1452904169472 count 1
[354437.151152] 		ref#8: shared data backref parent 1427070894080 count 1
[354437.151153] 		ref#9: shared data backref parent 1426590777344 count 1
[354437.151154] 		ref#10: shared data backref parent 1385237430272 count 1
[354437.151155] 	item 119 key (1776120115200 168 262144) itemoff 8188 itemsize 102
[354437.151156] 		extent refs 6 gen 2399058 flags 1
[354437.151156] 		ref#0: shared data backref parent 1515779866624 count 1
[354437.151157] 		ref#1: shared data backref parent 1483791384576 count 1
[354437.151158] 		ref#2: shared data backref parent 1478528483328 count 1
[354437.151158] 		ref#3: shared data backref parent 1469123969024 count 1
[354437.151159] 		ref#4: shared data backref parent 1427070894080 count 1
[354437.151160] 		ref#5: shared data backref parent 1426590777344 count 1
[354437.151161] 	item 120 key (1776120377344 168 262144) itemoff 8138 itemsize 50
[354437.151162] 		extent refs 2 gen 2399070 flags 1
[354437.151162] 		ref#0: shared data backref parent 1427070894080 count 1
[354437.151163] 		ref#1: shared data backref parent 1426590777344 count 1
[354437.151164] 	item 121 key (1776120639488 168 524288) itemoff 8075 itemsize 63
[354437.151164] 		extent refs 3 gen 2399058 flags 1
[354437.151165] 		ref#0: shared data backref parent 1469123969024 count 1
[354437.151165] 		ref#1: shared data backref parent 1427070894080 count 1
[354437.151166] 		ref#2: shared data backref parent 1426590777344 count 1
[354437.151168] 	item 122 key (1776121163776 168 524288) itemoff 8025 itemsize 50
[354437.151168] 		extent refs 2 gen 2399058 flags 1
[354437.151169] 		ref#0: shared data backref parent 1427070894080 count 1
[354437.151169] 		ref#1: shared data backref parent 1426590777344 count 1
[354437.151171] 	item 123 key (1776121688064 168 778240) itemoff 7910 itemsize 115
[354437.151171] 		extent refs 9 gen 2399058 flags 1
[354437.151171] 		ref#0: shared data backref parent 1571793682432 count 1
[354437.151172] 		ref#1: shared data backref parent 1515779866624 count 1
[354437.151173] 		ref#2: shared data backref parent 1483791384576 count 1
[354437.151173] 		ref#3: shared data backref parent 1478528483328 count 2
[354437.151174] 		ref#4: shared data backref parent 1469123969024 count 2
[354437.151175] 		ref#5: shared data backref parent 1427070894080 count 1
[354437.151175] 		ref#6: shared data backref parent 1426590777344 count 1
[354437.151177] 	item 124 key (1776122466304 168 262144) itemoff 7860 itemsize 50
[354437.151177] 		extent refs 2 gen 2399058 flags 1
[354437.151178] 		ref#0: shared data backref parent 1427070894080 count 1
[354437.151178] 		ref#1: shared data backref parent 1426590777344 count 1
[354437.151179] 	item 125 key (1776122728448 168 262144) itemoff 7797 itemsize 63
[354437.151180] 		extent refs 3 gen 2399058 flags 1
[354437.151180] 		ref#0: shared data backref parent 1469123969024 count 1
[354437.151181] 		ref#1: shared data backref parent 1427070894080 count 1
[354437.151182] 		ref#2: shared data backref parent 1426590777344 count 1
[354437.151183] 	item 126 key (1776122990592 168 262144) itemoff 7708 itemsize 89
[354437.151183] 		extent refs 5 gen 2399058 flags 1
[354437.151184] 		ref#0: shared data backref parent 1483791384576 count 1
[354437.151184] 		ref#1: shared data backref parent 1478528483328 count 1
[354437.151185] 		ref#2: shared data backref parent 1469123969024 count 1
[354437.151186] 		ref#3: shared data backref parent 1427070894080 count 1
[354437.151186] 		ref#4: shared data backref parent 1426590777344 count 1
[354437.151188] 	item 127 key (1776123252736 168 262144) itemoff 7632 itemsize 76
[354437.151188] 		extent refs 4 gen 2399058 flags 1
[354437.151189] 		ref#0: shared data backref parent 1483791384576 count 1
[354437.151189] 		ref#1: shared data backref parent 1478528483328 count 1
[354437.151190] 		ref#2: shared data backref parent 1469123969024 count 1
[354437.151191] 		ref#3: shared data backref parent 1426549227520 count 1
[354437.151192] 	item 128 key (1776123514880 168 262144) itemoff 7595 itemsize 37
[354437.151192] 		extent refs 1 gen 2399058 flags 1
[354437.151193] 		ref#0: shared data backref parent 1426549227520 count 1
[354437.151194] 	item 129 key (1776123777024 168 262144) itemoff 7558 itemsize 37
[354437.151195] 		extent refs 1 gen 2399058 flags 1
[354437.151195] 		ref#0: shared data backref parent 1426549227520 count 1
[354437.151197] 	item 130 key (1776124039168 168 262144) itemoff 7469 itemsize 89
[354437.151197] 		extent refs 5 gen 2399070 flags 1
[354437.151198] 		ref#0: shared data backref parent 1515779899392 count 1
[354437.151199] 		ref#1: shared data backref parent 1483791171584 count 1
[354437.151199] 		ref#2: shared data backref parent 1478528548864 count 1
[354437.151200] 		ref#3: shared data backref parent 1469124231168 count 1
[354437.151201] 		ref#4: shared data backref parent 1426548834304 count 1
[354437.151202] 	item 131 key (1776124301312 168 262144) itemoff 7419 itemsize 50
[354437.151203] 		extent refs 2 gen 2399058 flags 1
[354437.151203] 		ref#0: shared data backref parent 1469123969024 count 1
[354437.151204] 		ref#1: shared data backref parent 1426549227520 count 1
[354437.151205] 	item 132 key (1776124563456 168 262144) itemoff 7356 itemsize 63
[354437.151206] 		extent refs 3 gen 2399070 flags 1
[354437.151206] 		ref#0: shared data backref parent 1469126475776 count 1
[354437.151207] 		ref#1: shared data backref parent 1427073351680 count 1
[354437.151208] 		ref#2: shared data backref parent 1426582634496 count 1
[354437.151209] 	item 133 key (1776124825600 168 262144) itemoff 7319 itemsize 37
[354437.151210] 		extent refs 1 gen 2399058 flags 1
[354437.151210] 		ref#0: shared data backref parent 1426549227520 count 1
[354437.151211] 	item 134 key (1776125087744 168 524288) itemoff 7256 itemsize 63
[354437.151212] 		extent refs 3 gen 2399058 flags 1
[354437.151212] 		ref#0: shared data backref parent 1478528483328 count 1
[354437.151213] 		ref#1: shared data backref parent 1469123969024 count 1
[354437.151214] 		ref#2: shared data backref parent 1426549227520 count 1
[354437.151215] 	item 135 key (1776125612032 168 262144) itemoff 7193 itemsize 63
[354437.151215] 		extent refs 4 gen 2399058 flags 1
[354437.151216] 		ref#0: shared data backref parent 1478528483328 count 2
[354437.151216] 		ref#1: shared data backref parent 1469123969024 count 1
[354437.151217] 		ref#2: shared data backref parent 1426549227520 count 1
[354437.151218] 	item 136 key (1776125874176 168 262144) itemoff 7156 itemsize 37
[354437.151219] 		extent refs 1 gen 2399058 flags 1
[354437.151219] 		ref#0: shared data backref parent 1426549227520 count 1
[354437.151221] 	item 137 key (1776126136320 168 262144) itemoff 7106 itemsize 50
[354437.151221] 		extent refs 2 gen 2399058 flags 1
[354437.151222] 		ref#0: shared data backref parent 1469123969024 count 1
[354437.151222] 		ref#1: shared data backref parent 1426549227520 count 1
[354437.151225] BTRFS error (device dm-2): unable to find ref byte nr 1776065458176 parent 1384804827136 root 257  owner 10994873 offset 2507014144
[354437.151226] ------------[ cut here ]------------
[354437.151227] BTRFS: Transaction aborted (error -2)
[354437.151262] WARNING: CPU: 3 PID: 9095 at fs/btrfs/extent-tree.c:4857 __btrfs_free_extent+0x260/0x8fd [btrfs]
[354437.151263] Modules linked in: rfcomm cmac bnep msr bridge stp llc ip_tables x_tables serpent_sse2_x86_64 serpent_avx2 serpent_avx_x86_64 algif_skcipher dm_zero dm_thin_pool dm_persistent_data dm_bio_prison dm_service_time dm_round_robin dm_queue_length dm_multipath dm_log_userspace dm_flakey dm_delay virtio_scsi virtio_console sha1_generic iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ixgb ixgbe samsung_sxgbe tulip cxgb3 cxgb mdio cxgb4 vxge vxlan ip6_udp_tunnel udp_tunnel macvlan vmxnet3 virtio_net net_failover failover tg3 sky2 r8169 libphy pcnet32 mii igb dca e1000 bnx2 atl1c fuse overlay nfs lockd grace sunrpc btrfs zstd_decompress zstd_compress xxhash multipath linear raid10 raid1 raid0 dm_raid raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq dm_snapshot dm_bufio dm_mirror dm_region_hash dm_log firewire_sbp2 firewire_ohci firewire_core hid_sunplus hid_sony hid_samsung hid_pl hid_petalynx hid_monterey hid_microsoft hid_gyration hid_ezkey
[354437.151288]  hid_cypress hid_chicony hid_cherry hid_belkin hid_a4tech sl811_hcd xhci_plat_hcd usb_storage mpt3sas raid_class aic94xx libsas lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm megaraid aacraid sx8 hpsa 3w_9xxx 3w_xxxx mptsas mptfc scsi_transport_fc mptspi mptscsih mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth initio BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg pdc_adma sata_inic162x sata_mv ata_piix ahci libahci sata_qstor sata_vsc sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil sata_promise pata_sl82c105 pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_pdc202xx_old pata_triflex pata_atiixp pata_amd pata_ali pata_it8213 pata_pcmcia pcmcia pcmcia_core pata_ns87415 pata_ns87410 pata_serverworks pata_artop pata_it821x pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366 pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x pata_mpiix snd_hda_codec_hdmi btusb btrtl btbcm btintel uvcvideo bluetooth
[354437.151313]  videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev ecdh_generic ecc videobuf2_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel ath10k_pci ath10k_core ath mac80211 i915 i2c_algo_bit aesni_intel snd_hda_intel dell_laptop dell_wmi ledtrig_audio snd_hda_codec drm_kms_helper dell_smbios rtsx_pci_sdmmc intel_rapl_msr wmi_bmof sparse_keymap dell_wmi_descriptor aes_x86_64 cfg80211 input_leds crypto_simd snd_hda_core snd_hwdep cryptd drm dcdbas snd_pcm glue_helper i2c_i801 mmc_core rfkill processor_thermal_device libarc4 pcspkr serio_raw intel_rapl_common intel_pch_thermal intel_soc_dts_iosf iosf_mbi wmi int3403_thermal int340x_thermal_zone int3400_thermal acpi_thermal_rel joydev
[354437.151333] CPU: 3 PID: 9095 Comm: kworker/3:1 Tainted: G        W         5.3.6-gentoo-r1 #2
[354437.151334] Hardware name: Dell Inc. XPS 13 9360/06CC14, BIOS 2.11.0 03/14/2019
[354437.151347] Workqueue: events do_async_commit [btrfs]
[354437.151360] RIP: 0010:__btrfs_free_extent+0x260/0x8fd [btrfs]
[354437.151361] Code: e8 b7 8d 08 00 49 8b 44 24 50 f0 48 0f ba a8 c0 0c 00 00 02 0f 92 c0 5a 84 c0 75 10 89 de 48 c7 c7 05 d6 17 c1 e8 a6 fc f6 d3 <0f> 0b b9 fe ff ff ff ba f9 12 00 00 48 c7 c6 10 99 17 c1 4c 89 e7
[354437.151363] RSP: 0018:ffff8e0b8605fc28 EFLAGS: 00010282
[354437.151364] RAX: 0000000000000000 RBX: 00000000fffffffe RCX: 0000000000000007
[354437.151365] RDX: 00000000000010b2 RSI: 0000000000000002 RDI: ffff8ae42e397330
[354437.151366] RBP: ffff8ae2a2bac310 R08: 0000000000000006 R09: 0000000000020500
[354437.151367] R10: 0000000000011630 R11: 0000000c1993c1e5 R12: ffff8ae2e9ec0208
[354437.151368] R13: 000001426cccc000 R14: 0000000000000101 R15: 00000000956e0000
[354437.151370] FS:  0000000000000000(0000) GS:ffff8ae42e380000(0000) knlGS:0000000000000000
[354437.151371] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[354437.151372] CR2: 00000000008c5487 CR3: 000000046a108001 CR4: 00000000003606e0
[354437.151373] Call Trace:
[354437.151387]  __btrfs_run_delayed_refs+0x690/0xc6c [btrfs]
[354437.151391]  ? __switch_to_asm+0x40/0x70
[354437.151403]  btrfs_run_delayed_refs+0x5e/0x149 [btrfs]
[354437.151416]  btrfs_commit_transaction+0x78/0x8a0 [btrfs]
[354437.151418]  ? __switch_to_asm+0x34/0x70
[354437.151419]  ? __switch_to_asm+0x40/0x70
[354437.151420]  ? __switch_to_asm+0x34/0x70
[354437.151421]  ? __switch_to_asm+0x40/0x70
[354437.151422]  ? __switch_to_asm+0x34/0x70
[354437.151431]  do_async_commit+0x1d/0x27 [btrfs]
[354437.151433]  process_one_work+0x16e/0x24e
[354437.151435]  ? rescuer_thread+0x28c/0x28c
[354437.151436]  worker_thread+0x1dc/0x2ac
[354437.151437]  kthread+0x10b/0x113
[354437.151438]  ? kthread_park+0x89/0x89
[354437.151439]  ret_from_fork+0x35/0x40
[354437.151441] ---[ end trace 85833d33b2b02bd0 ]---
[354437.151446] BTRFS: error (device dm-2) in __btrfs_free_extent:4857: errno=-2 No such entry
[354437.151447] BTRFS info (device dm-2): forced readonly
[354437.151449] BTRFS: error (device dm-2) in btrfs_run_delayed_refs:2795: errno=-2 No such entry

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: __btrfs_free_extent error after suspend resume
  2019-11-06  0:01 __btrfs_free_extent error after suspend resume Leonard Lausen
@ 2019-11-07  2:05 ` Leonard Lausen
  2019-11-07  2:30   ` Qu Wenruo
  0 siblings, 1 reply; 4+ messages in thread
From: Leonard Lausen @ 2019-11-07  2:05 UTC (permalink / raw)
  To: linux-btrfs; +Cc: Qu Wenruo

It seems this bug is indeed similar to <20191018025604.GA31526@merlins.org>.
Running

    btrfs check --readonly /dev/$NAME

runs out of 16GB of memory within 20 seconds and is killed by the
kernel.

No errors are displayed and the only output is

  [1/7] checking root items
  [2/7] checking extents

btrfs check does not seem to contain a verbose mode? Is there anything
you would like me to do to help debug btrfs check, if not help debug the
root cause of this bug in the first place?

Please let me know.

Best regards
Leonard

Leonard Lausen <leonard@lausen.nl> writes:
> Hi,
>
> I just found my btrfs filesystem to be remounted read-only with the
> stacktrace below. (Similar experience to 87d0oyw46b.fsf@lausen.nl
> earlier this year). Similar to <20191018025604.GA31526@merlins.org>, I
> experience the following stacktrace following a suspend / resume cycle.
> The system runs Linux 5.3.8 (unlike 5.1.21 in the previous report),
> suggesting that the bug is around for a few months already.
> Prior to suspension, I ran several compilation jobs. They all finished
> without error.
>
> You may find the output of
>
>   sudo btrfs inspect dump-tree -t root
>
> and
>
>   sudo btrfs inspect dump-super
>
> at http://termbin.com/ddxq and http://termbin.com/4mqt
>
> The stacktrace is pasted below at the complete dmesg output at http://termbin.com/kr2j
>
> As the bug affects the root partition, I suspect I won't be able to
> boot the system after turning it off. Thus I leave it running for now
> and can provide you with further information if so instructed.
>
> Please also let me know if you suspect any chance to repair this
> filesystem.
>
> Best regards
> Leonard
>
>
> [354437.150593] ------------[ cut here ]------------
> [354437.150639] WARNING: CPU: 3 PID: 9095 at fs/btrfs/extent-tree.c:4851 __btrfs_free_extent+0x20d/0x8fd [btrfs]
> [354437.150641] Modules linked in: rfcomm cmac bnep msr bridge stp llc ip_tables x_tables serpent_sse2_x86_64 serpent_avx2 serpent_avx_x86_64 algif_skcipher dm_zero dm_thin_pool dm_persistent_data dm_bio_prison dm_service_time dm_round_robin dm_queue_length dm_multipath dm_log_userspace dm_flakey dm_delay virtio_scsi virtio_console sha1_generic iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ixgb ixgbe samsung_sxgbe tulip cxgb3 cxgb mdio cxgb4 vxge vxlan ip6_udp_tunnel udp_tunnel macvlan vmxnet3 virtio_net net_failover failover tg3 sky2 r8169 libphy pcnet32 mii igb dca e1000 bnx2 atl1c fuse overlay nfs lockd grace sunrpc btrfs zstd_decompress zstd_compress xxhash multipath linear raid10 raid1 raid0 dm_raid raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq dm_snapshot dm_bufio dm_mirror dm_region_hash dm_log firewire_sbp2 firewire_ohci firewire_core hid_sunplus hid_sony hid_samsung hid_pl hid_petalynx hid_monterey hid_microsoft hid_gyration hid_ezk
 ey
> [354437.150664]  hid_cypress hid_chicony hid_cherry hid_belkin hid_a4tech sl811_hcd xhci_plat_hcd usb_storage mpt3sas raid_class aic94xx libsas lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm megaraid aacraid sx8 hpsa 3w_9xxx 3w_xxxx mptsas mptfc scsi_transport_fc mptspi mptscsih mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth initio BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg pdc_adma sata_inic162x sata_mv ata_piix ahci libahci sata_qstor sata_vsc sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil sata_promise pata_sl82c105 pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_pdc202xx_old pata_triflex pata_atiixp pata_amd pata_ali pata_it8213 pata_pcmcia pcmcia pcmcia_core pata_ns87415 pata_ns87410 pata_serverworks pata_artop pata_it821x pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366 pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x pata_mpiix snd_hda_codec_hdmi btusb btrtl btbcm btintel uvcvideo bluetoot
 h
> [354437.150694]  videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev ecdh_generic ecc videobuf2_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel ath10k_pci ath10k_core ath mac80211 i915 i2c_algo_bit aesni_intel snd_hda_intel dell_laptop dell_wmi ledtrig_audio snd_hda_codec drm_kms_helper dell_smbios rtsx_pci_sdmmc intel_rapl_msr wmi_bmof sparse_keymap dell_wmi_descriptor aes_x86_64 cfg80211 input_leds crypto_simd snd_hda_core snd_hwdep cryptd drm dcdbas snd_pcm glue_helper i2c_i801 mmc_core rfkill processor_thermal_device libarc4 pcspkr serio_raw intel_rapl_common intel_pch_thermal intel_soc_dts_iosf iosf_mbi wmi int3403_thermal int340x_thermal_zone int3400_thermal acpi_thermal_rel joydev
> [354437.150717] CPU: 3 PID: 9095 Comm: kworker/3:1 Tainted: G        W         5.3.6-gentoo-r1 #2
> [354437.150718] Hardware name: Dell Inc. XPS 13 9360/06CC14, BIOS 2.11.0 03/14/2019
> [354437.150729] Workqueue: events do_async_commit [btrfs]
> [354437.150737] RIP: 0010:__btrfs_free_extent+0x20d/0x8fd [btrfs]
> [354437.150739] Code: 48 83 eb 19 44 29 e8 83 f8 05 0f 8f a7 04 00 00 41 ff cd eb 88 83 fb fe 0f 85 9d 06 00 00 48 c7 c7 44 d5 17 c1 e8 47 6f fb d3 <0f> 0b 48 8b 7d 00 e8 26 26 00 00 4d 89 f0 4c 89 e9 48 c7 c6 4f dd
> [354437.150740] RSP: 0018:ffff8e0b8605fc28 EFLAGS: 00010246
> [354437.150741] RAX: 0000000000000024 RBX: 00000000fffffffe RCX: 0000000000000000
> [354437.150742] RDX: 0000000000000000 RSI: ffff8ae42e397338 RDI: ffff8ae42e397338
> [354437.150743] RBP: ffff8ae2a2bac310 R08: 0000000000000006 R09: ffffffff9f4db100
> [354437.150744] R10: 0000000000003388 R11: ffff8e0b8605fad0 R12: ffff8ae2e9ec0208
> [354437.150745] R13: 000001426cccc000 R14: 0000000000000101 R15: 00000000956e0000
> [354437.150746] FS:  0000000000000000(0000) GS:ffff8ae42e380000(0000) knlGS:0000000000000000
> [354437.150746] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [354437.150747] CR2: 00000000008c5487 CR3: 000000046a108001 CR4: 00000000003606e0
> [354437.150748] Call Trace:
> [354437.150758]  __btrfs_run_delayed_refs+0x690/0xc6c [btrfs]
> [354437.150762]  ? __switch_to_asm+0x40/0x70
> [354437.150770]  btrfs_run_delayed_refs+0x5e/0x149 [btrfs]
> [354437.150778]  btrfs_commit_transaction+0x78/0x8a0 [btrfs]
> [354437.150780]  ? __switch_to_asm+0x34/0x70
> [354437.150781]  ? __switch_to_asm+0x40/0x70
> [354437.150782]  ? __switch_to_asm+0x34/0x70
> [354437.150783]  ? __switch_to_asm+0x40/0x70
> [354437.150784]  ? __switch_to_asm+0x34/0x70
> [354437.150792]  do_async_commit+0x1d/0x27 [btrfs]
> [354437.150795]  process_one_work+0x16e/0x24e
> [354437.150797]  ? rescuer_thread+0x28c/0x28c
> [354437.150798]  worker_thread+0x1dc/0x2ac
> [354437.150799]  kthread+0x10b/0x113
> [354437.150801]  ? kthread_park+0x89/0x89
> [354437.150802]  ret_from_fork+0x35/0x40
> [354437.150804] ---[ end trace 85833d33b2b02bcf ]---
> [354437.150807] BTRFS info (device dm-2): leaf 1426551308288 gen 2402058 total ptrs 138 free space 3656 owner 2
> [354437.150808] 	item 0 key (1776065458176 168 262144) itemoff 16233 itemsize 50
> [354437.150808] 		extent refs 2 gen 2399043 flags 1
> [354437.150809] 		ref#0: shared data backref parent 1385529737216 count 1
> [354437.150809] 		ref#1: shared data backref parent 1383731085312 count 1
> [354437.150810] 	item 1 key (1776065720320 168 262144) itemoff 16157 itemsize 76
> [354437.150811] 		extent refs 4 gen 2399043 flags 1
> [354437.150811] 		ref#0: shared data backref parent 1478537773056 count 1
> [354437.150812] 		ref#1: shared data backref parent 1469189111808 count 1
> [354437.150812] 		ref#2: shared data backref parent 1385529737216 count 1
> [354437.150813] 		ref#3: shared data backref parent 1384804827136 count 1
> [354437.150814] 	item 2 key (1776066007040 168 4526080) itemoff 16104 itemsize 53
> [354437.150814] 		extent refs 1 gen 1220365 flags 1
> [354437.150814] 		ref#0: extent data backref root 2829 objectid 28509 offset 55762944 count 1
> [354437.150816] 	item 3 key (1776070533120 168 262144) itemoff 16041 itemsize 63
> [354437.150816] 		extent refs 3 gen 2399043 flags 1
> [354437.150816] 		ref#0: shared data backref parent 1469189111808 count 1
> [354437.150817] 		ref#1: shared data backref parent 1385529737216 count 1
> [354437.150817] 		ref#2: shared data backref parent 1384804827136 count 1
> [354437.150818] 	item 4 key (1776070795264 168 262144) itemoff 16004 itemsize 37
> [354437.150819] 		extent refs 1 gen 2399043 flags 1
> [354437.150819] 		ref#0: shared data backref parent 1384804827136 count 1
> [354437.150820] 	item 5 key (1776071057408 168 262144) itemoff 15889 itemsize 115
> [354437.150820] 		extent refs 7 gen 2399043 flags 1
> [354437.150820] 		ref#0: shared data backref parent 1571827269632 count 1
> [354437.150821] 		ref#1: shared data backref parent 1515792695296 count 1
> [354437.150822] 		ref#2: shared data backref parent 1483800084480 count 1
> [354437.150822] 		ref#3: shared data backref parent 1478537773056 count 1
> [354437.150823] 		ref#4: shared data backref parent 1469189111808 count 1
> [354437.150823] 		ref#5: shared data backref parent 1385529737216 count 1
> [354437.150824] 		ref#6: shared data backref parent 1384804827136 count 1
> [354437.150824] 	item 6 key (1776071319552 168 262144) itemoff 15761 itemsize 128
> [354437.150825] 		extent refs 8 gen 2399043 flags 1
> [354437.150825] 		ref#0: shared data backref parent 1571827269632 count 1
> [354437.150826] 		ref#1: shared data backref parent 1515792695296 count 1
> [354437.150826] 		ref#2: shared data backref parent 1483800084480 count 1
> [354437.150827] 		ref#3: shared data backref parent 1478537773056 count 1
> [354437.150827] 		ref#4: shared data backref parent 1469189111808 count 1
> [354437.150828] 		ref#5: shared data backref parent 1385529737216 count 1
> [354437.150828] 		ref#6: shared data backref parent 1385250930688 count 1
> [354437.150829] 		ref#7: shared data backref parent 1384804827136 count 1
> [354437.150830] 	item 7 key (1776071581696 168 262144) itemoff 15685 itemsize 76
> [354437.150830] 		extent refs 4 gen 2399043 flags 1
> [354437.150830] 		ref#0: shared data backref parent 1478537773056 count 1
> [354437.150831] 		ref#1: shared data backref parent 1469189111808 count 1
> [354437.150831] 		ref#2: shared data backref parent 1385529737216 count 1
> [354437.150832] 		ref#3: shared data backref parent 1384804827136 count 1
> [354437.150833] 	item 8 key (1776071843840 168 262144) itemoff 15596 itemsize 89
> [354437.150833] 		extent refs 5 gen 2399043 flags 1
> [354437.150833] 		ref#0: shared data backref parent 1483800084480 count 1
> [354437.150834] 		ref#1: shared data backref parent 1478537773056 count 1
> [354437.150834] 		ref#2: shared data backref parent 1469189111808 count 1
> [354437.150835] 		ref#3: shared data backref parent 1385529737216 count 1
> [354437.150835] 		ref#4: shared data backref parent 1384804827136 count 1
> [354437.150836] 	item 9 key (1776072105984 168 262144) itemoff 15520 itemsize 76
> [354437.150837] 		extent refs 4 gen 2399043 flags 1
> [354437.150837] 		ref#0: shared data backref parent 1478537773056 count 1
> [354437.150837] 		ref#1: shared data backref parent 1469189111808 count 1
> [354437.150838] 		ref#2: shared data backref parent 1385529737216 count 1
> [354437.150838] 		ref#3: shared data backref parent 1384804827136 count 1
> [354437.150839] 	item 10 key (1776072368128 168 262144) itemoff 15444 itemsize 76
> [354437.150840] 		extent refs 5 gen 2399043 flags 1
> [354437.150840] 		ref#0: shared data backref parent 1478537773056 count 2
> [354437.150841] 		ref#1: shared data backref parent 1469189111808 count 1
> [354437.150841] 		ref#2: shared data backref parent 1385529737216 count 1
> [354437.150842] 		ref#3: shared data backref parent 1384804827136 count 1
> [354437.150842] 	item 11 key (1776072630272 168 262144) itemoff 15329 itemsize 115
> [354437.150843] 		extent refs 7 gen 2399043 flags 1
> [354437.150843] 		ref#0: shared data backref parent 1571827269632 count 1
> [354437.150844] 		ref#1: shared data backref parent 1515792695296 count 1
> [354437.150844] 		ref#2: shared data backref parent 1483800084480 count 1
> [354437.150845] 		ref#3: shared data backref parent 1478537773056 count 1
> [354437.150845] 		ref#4: shared data backref parent 1469189111808 count 1
> [354437.150846] 		ref#5: shared data backref parent 1385529737216 count 1
> [354437.150846] 		ref#6: shared data backref parent 1384804827136 count 1
> [354437.150847] 	item 12 key (1776072892416 168 262144) itemoff 15240 itemsize 89
> [354437.150847] 		extent refs 5 gen 2399043 flags 1
> [354437.150848] 		ref#0: shared data backref parent 1483800084480 count 1
> [354437.150848] 		ref#1: shared data backref parent 1478537773056 count 1
> [354437.150849] 		ref#2: shared data backref parent 1469189111808 count 1
> [354437.150849] 		ref#3: shared data backref parent 1385529737216 count 1
> [354437.150850] 		ref#4: shared data backref parent 1384804827136 count 1
> [354437.150851] 	item 13 key (1776073154560 168 262144) itemoff 15125 itemsize 115
> [354437.150851] 		extent refs 7 gen 2399043 flags 1
> [354437.150851] 		ref#0: shared data backref parent 1571827286016 count 1
> [354437.150852] 		ref#1: shared data backref parent 1515792728064 count 1
> [354437.150852] 		ref#2: shared data backref parent 1483638177792 count 1
> [354437.150853] 		ref#3: shared data backref parent 1478537805824 count 1
> [354437.150853] 		ref#4: shared data backref parent 1469189111808 count 1
> [354437.150854] 		ref#5: shared data backref parent 1385529737216 count 1
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> [354437.151155] 	item 119 key (1776120115200 168 262144) itemoff 8188 itemsize 102
> [354437.151156] 		extent refs 6 gen 2399058 flags 1
> [354437.151156] 		ref#0: shared data backref parent 1515779866624 count 1
> [354437.151157] 		ref#1: shared data backref parent 1483791384576 count 1
> [354437.151158] 		ref#2: shared data backref parent 1478528483328 count 1
> [354437.151158] 		ref#3: shared data backref parent 1469123969024 count 1
> [354437.151159] 		ref#4: shared data backref parent 1427070894080 count 1
> [354437.151160] 		ref#5: shared data backref parent 1426590777344 count 1
> [354437.151161] 	item 120 key (1776120377344 168 262144) itemoff 8138 itemsize 50
> [354437.151162] 		extent refs 2 gen 2399070 flags 1
> [354437.151162] 		ref#0: shared data backref parent 1427070894080 count 1
> [354437.151163] 		ref#1: shared data backref parent 1426590777344 count 1
> [354437.151164] 	item 121 key (1776120639488 168 524288) itemoff 8075 itemsize 63
> [354437.151164] 		extent refs 3 gen 2399058 flags 1
> [354437.151165] 		ref#0: shared data backref parent 1469123969024 count 1
> [354437.151165] 		ref#1: shared data backref parent 1427070894080 count 1
> [354437.151166] 		ref#2: shared data backref parent 1426590777344 count 1
> [354437.151168] 	item 122 key (1776121163776 168 524288) itemoff 8025 itemsize 50
> [354437.151168] 		extent refs 2 gen 2399058 flags 1
> [354437.151169] 		ref#0: shared data backref parent 1427070894080 count 1
> [354437.151169] 		ref#1: shared data backref parent 1426590777344 count 1
> [354437.151171] 	item 123 key (1776121688064 168 778240) itemoff 7910 itemsize 115
> [354437.151171] 		extent refs 9 gen 2399058 flags 1
> [354437.151171] 		ref#0: shared data backref parent 1571793682432 count 1
> [354437.151172] 		ref#1: shared data backref parent 1515779866624 count 1
> [354437.151173] 		ref#2: shared data backref parent 1483791384576 count 1
> [354437.151173] 		ref#3: shared data backref parent 1478528483328 count 2
> [354437.151174] 		ref#4: shared data backref parent 1469123969024 count 2
> [354437.151175] 		ref#5: shared data backref parent 1427070894080 count 1
> [354437.151175] 		ref#6: shared data backref parent 1426590777344 count 1
> [354437.151177] 	item 124 key (1776122466304 168 262144) itemoff 7860 itemsize 50
> [354437.151177] 		extent refs 2 gen 2399058 flags 1
> [354437.151178] 		ref#0: shared data backref parent 1427070894080 count 1
> [354437.151178] 		ref#1: shared data backref parent 1426590777344 count 1
> [354437.151179] 	item 125 key (1776122728448 168 262144) itemoff 7797 itemsize 63
> [354437.151180] 		extent refs 3 gen 2399058 flags 1
> [354437.151180] 		ref#0: shared data backref parent 1469123969024 count 1
> [354437.151181] 		ref#1: shared data backref parent 1427070894080 count 1
> [354437.151182] 		ref#2: shared data backref parent 1426590777344 count 1
> [354437.151183] 	item 126 key (1776122990592 168 262144) itemoff 7708 itemsize 89
> [354437.151183] 		extent refs 5 gen 2399058 flags 1
> [354437.151184] 		ref#0: shared data backref parent 1483791384576 count 1
> [354437.151184] 		ref#1: shared data backref parent 1478528483328 count 1
> [354437.151185] 		ref#2: shared data backref parent 1469123969024 count 1
> [354437.151186] 		ref#3: shared data backref parent 1427070894080 count 1
> [354437.151186] 		ref#4: shared data backref parent 1426590777344 count 1
> [354437.151188] 	item 127 key (1776123252736 168 262144) itemoff 7632 itemsize 76
> [354437.151188] 		extent refs 4 gen 2399058 flags 1
> [354437.151189] 		ref#0: shared data backref parent 1483791384576 count 1
> [354437.151189] 		ref#1: shared data backref parent 1478528483328 count 1
> [354437.151190] 		ref#2: shared data backref parent 1469123969024 count 1
> [354437.151191] 		ref#3: shared data backref parent 1426549227520 count 1
> [354437.151192] 	item 128 key (1776123514880 168 262144) itemoff 7595 itemsize 37
> [354437.151192] 		extent refs 1 gen 2399058 flags 1
> [354437.151193] 		ref#0: shared data backref parent 1426549227520 count 1
> [354437.151194] 	item 129 key (1776123777024 168 262144) itemoff 7558 itemsize 37
> [354437.151195] 		extent refs 1 gen 2399058 flags 1
> [354437.151195] 		ref#0: shared data backref parent 1426549227520 count 1
> [354437.151197] 	item 130 key (1776124039168 168 262144) itemoff 7469 itemsize 89
> [354437.151197] 		extent refs 5 gen 2399070 flags 1
> [354437.151198] 		ref#0: shared data backref parent 1515779899392 count 1
> [354437.151199] 		ref#1: shared data backref parent 1483791171584 count 1
> [354437.151199] 		ref#2: shared data backref parent 1478528548864 count 1
> [354437.151200] 		ref#3: shared data backref parent 1469124231168 count 1
> [354437.151201] 		ref#4: shared data backref parent 1426548834304 count 1
> [354437.151202] 	item 131 key (1776124301312 168 262144) itemoff 7419 itemsize 50
> [354437.151203] 		extent refs 2 gen 2399058 flags 1
> [354437.151203] 		ref#0: shared data backref parent 1469123969024 count 1
> [354437.151204] 		ref#1: shared data backref parent 1426549227520 count 1
> [354437.151205] 	item 132 key (1776124563456 168 262144) itemoff 7356 itemsize 63
> [354437.151206] 		extent refs 3 gen 2399070 flags 1
> [354437.151206] 		ref#0: shared data backref parent 1469126475776 count 1
> [354437.151207] 		ref#1: shared data backref parent 1427073351680 count 1
> [354437.151208] 		ref#2: shared data backref parent 1426582634496 count 1
> [354437.151209] 	item 133 key (1776124825600 168 262144) itemoff 7319 itemsize 37
> [354437.151210] 		extent refs 1 gen 2399058 flags 1
> [354437.151210] 		ref#0: shared data backref parent 1426549227520 count 1
> [354437.151211] 	item 134 key (1776125087744 168 524288) itemoff 7256 itemsize 63
> [354437.151212] 		extent refs 3 gen 2399058 flags 1
> [354437.151212] 		ref#0: shared data backref parent 1478528483328 count 1
> [354437.151213] 		ref#1: shared data backref parent 1469123969024 count 1
> [354437.151214] 		ref#2: shared data backref parent 1426549227520 count 1
> [354437.151215] 	item 135 key (1776125612032 168 262144) itemoff 7193 itemsize 63
> [354437.151215] 		extent refs 4 gen 2399058 flags 1
> [354437.151216] 		ref#0: shared data backref parent 1478528483328 count 2
> [354437.151216] 		ref#1: shared data backref parent 1469123969024 count 1
> [354437.151217] 		ref#2: shared data backref parent 1426549227520 count 1
> [354437.151218] 	item 136 key (1776125874176 168 262144) itemoff 7156 itemsize 37
> [354437.151219] 		extent refs 1 gen 2399058 flags 1
> [354437.151219] 		ref#0: shared data backref parent 1426549227520 count 1
> [354437.151221] 	item 137 key (1776126136320 168 262144) itemoff 7106 itemsize 50
> [354437.151221] 		extent refs 2 gen 2399058 flags 1
> [354437.151222] 		ref#0: shared data backref parent 1469123969024 count 1
> [354437.151222] 		ref#1: shared data backref parent 1426549227520 count 1
> [354437.151225] BTRFS error (device dm-2): unable to find ref byte nr 1776065458176 parent 1384804827136 root 257  owner 10994873 offset 2507014144
> [354437.151226] ------------[ cut here ]------------
> [354437.151227] BTRFS: Transaction aborted (error -2)
> [354437.151262] WARNING: CPU: 3 PID: 9095 at fs/btrfs/extent-tree.c:4857 __btrfs_free_extent+0x260/0x8fd [btrfs]
> [354437.151263] Modules linked in: rfcomm cmac bnep msr bridge stp llc ip_tables x_tables serpent_sse2_x86_64 serpent_avx2 serpent_avx_x86_64 algif_skcipher dm_zero dm_thin_pool dm_persistent_data dm_bio_prison dm_service_time dm_round_robin dm_queue_length dm_multipath dm_log_userspace dm_flakey dm_delay virtio_scsi virtio_console sha1_generic iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ixgb ixgbe samsung_sxgbe tulip cxgb3 cxgb mdio cxgb4 vxge vxlan ip6_udp_tunnel udp_tunnel macvlan vmxnet3 virtio_net net_failover failover tg3 sky2 r8169 libphy pcnet32 mii igb dca e1000 bnx2 atl1c fuse overlay nfs lockd grace sunrpc btrfs zstd_decompress zstd_compress xxhash multipath linear raid10 raid1 raid0 dm_raid raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq dm_snapshot dm_bufio dm_mirror dm_region_hash dm_log firewire_sbp2 firewire_ohci firewire_core hid_sunplus hid_sony hid_samsung hid_pl hid_petalynx hid_monterey hid_microsoft hid_gyration hid_ezk
 ey
> [354437.151288]  hid_cypress hid_chicony hid_cherry hid_belkin hid_a4tech sl811_hcd xhci_plat_hcd usb_storage mpt3sas raid_class aic94xx libsas lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm megaraid aacraid sx8 hpsa 3w_9xxx 3w_xxxx mptsas mptfc scsi_transport_fc mptspi mptscsih mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth initio BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg pdc_adma sata_inic162x sata_mv ata_piix ahci libahci sata_qstor sata_vsc sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil sata_promise pata_sl82c105 pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_pdc202xx_old pata_triflex pata_atiixp pata_amd pata_ali pata_it8213 pata_pcmcia pcmcia pcmcia_core pata_ns87415 pata_ns87410 pata_serverworks pata_artop pata_it821x pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366 pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x pata_mpiix snd_hda_codec_hdmi btusb btrtl btbcm btintel uvcvideo bluetoot
 h
> [354437.151313]  videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev ecdh_generic ecc videobuf2_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel ath10k_pci ath10k_core ath mac80211 i915 i2c_algo_bit aesni_intel snd_hda_intel dell_laptop dell_wmi ledtrig_audio snd_hda_codec drm_kms_helper dell_smbios rtsx_pci_sdmmc intel_rapl_msr wmi_bmof sparse_keymap dell_wmi_descriptor aes_x86_64 cfg80211 input_leds crypto_simd snd_hda_core snd_hwdep cryptd drm dcdbas snd_pcm glue_helper i2c_i801 mmc_core rfkill processor_thermal_device libarc4 pcspkr serio_raw intel_rapl_common intel_pch_thermal intel_soc_dts_iosf iosf_mbi wmi int3403_thermal int340x_thermal_zone int3400_thermal acpi_thermal_rel joydev
> [354437.151333] CPU: 3 PID: 9095 Comm: kworker/3:1 Tainted: G        W         5.3.6-gentoo-r1 #2
> [354437.151334] Hardware name: Dell Inc. XPS 13 9360/06CC14, BIOS 2.11.0 03/14/2019
> [354437.151347] Workqueue: events do_async_commit [btrfs]
> [354437.151360] RIP: 0010:__btrfs_free_extent+0x260/0x8fd [btrfs]
> [354437.151361] Code: e8 b7 8d 08 00 49 8b 44 24 50 f0 48 0f ba a8 c0 0c 00 00 02 0f 92 c0 5a 84 c0 75 10 89 de 48 c7 c7 05 d6 17 c1 e8 a6 fc f6 d3 <0f> 0b b9 fe ff ff ff ba f9 12 00 00 48 c7 c6 10 99 17 c1 4c 89 e7
> [354437.151363] RSP: 0018:ffff8e0b8605fc28 EFLAGS: 00010282
> [354437.151364] RAX: 0000000000000000 RBX: 00000000fffffffe RCX: 0000000000000007
> [354437.151365] RDX: 00000000000010b2 RSI: 0000000000000002 RDI: ffff8ae42e397330
> [354437.151366] RBP: ffff8ae2a2bac310 R08: 0000000000000006 R09: 0000000000020500
> [354437.151367] R10: 0000000000011630 R11: 0000000c1993c1e5 R12: ffff8ae2e9ec0208
> [354437.151368] R13: 000001426cccc000 R14: 0000000000000101 R15: 00000000956e0000
> [354437.151370] FS:  0000000000000000(0000) GS:ffff8ae42e380000(0000) knlGS:0000000000000000
> [354437.151371] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [354437.151372] CR2: 00000000008c5487 CR3: 000000046a108001 CR4: 00000000003606e0
> [354437.151373] Call Trace:
> [354437.151387]  __btrfs_run_delayed_refs+0x690/0xc6c [btrfs]
> [354437.151391]  ? __switch_to_asm+0x40/0x70
> [354437.151403]  btrfs_run_delayed_refs+0x5e/0x149 [btrfs]
> [354437.151416]  btrfs_commit_transaction+0x78/0x8a0 [btrfs]
> [354437.151418]  ? __switch_to_asm+0x34/0x70
> [354437.151419]  ? __switch_to_asm+0x40/0x70
> [354437.151420]  ? __switch_to_asm+0x34/0x70
> [354437.151421]  ? __switch_to_asm+0x40/0x70
> [354437.151422]  ? __switch_to_asm+0x34/0x70
> [354437.151431]  do_async_commit+0x1d/0x27 [btrfs]
> [354437.151433]  process_one_work+0x16e/0x24e
> [354437.151435]  ? rescuer_thread+0x28c/0x28c
> [354437.151436]  worker_thread+0x1dc/0x2ac
> [354437.151437]  kthread+0x10b/0x113
> [354437.151438]  ? kthread_park+0x89/0x89
> [354437.151439]  ret_from_fork+0x35/0x40
> [354437.151441] ---[ end trace 85833d33b2b02bd0 ]---
> [354437.151446] BTRFS: error (device dm-2) in __btrfs_free_extent:4857: errno=-2 No such entry
> [354437.151447] BTRFS info (device dm-2): forced readonly
> [354437.151449] BTRFS: error (device dm-2) in btrfs_run_delayed_refs:2795: errno=-2 No such entry

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: __btrfs_free_extent error after suspend resume
  2019-11-07  2:05 ` Leonard Lausen
@ 2019-11-07  2:30   ` Qu Wenruo
  2019-11-08  0:08     ` Leonard Lausen
  0 siblings, 1 reply; 4+ messages in thread
From: Qu Wenruo @ 2019-11-07  2:30 UTC (permalink / raw)
  To: Leonard Lausen, linux-btrfs

[-- Attachment #1.1: Type: text/plain, Size: 67402 bytes --]



On 2019/11/7 上午10:05, Leonard Lausen wrote:
> It seems this bug is indeed similar to <20191018025604.GA31526@merlins.org>.
> Running
> 
>     btrfs check --readonly /dev/$NAME
> 
> runs out of 16GB of memory within 20 seconds and is killed by the
> kernel.

That's why we have btrfs check --mode=lowmem

Thanks,
Qu
> 
> No errors are displayed and the only output is
> 
>   [1/7] checking root items
>   [2/7] checking extents
> 
> btrfs check does not seem to contain a verbose mode? Is there anything
> you would like me to do to help debug btrfs check, if not help debug the
> root cause of this bug in the first place?
> 
> Please let me know.
> 
> Best regards
> Leonard
> 
> Leonard Lausen <leonard@lausen.nl> writes:
>> Hi,
>>
>> I just found my btrfs filesystem to be remounted read-only with the
>> stacktrace below. (Similar experience to 87d0oyw46b.fsf@lausen.nl
>> earlier this year). Similar to <20191018025604.GA31526@merlins.org>, I
>> experience the following stacktrace following a suspend / resume cycle.
>> The system runs Linux 5.3.8 (unlike 5.1.21 in the previous report),
>> suggesting that the bug is around for a few months already.
>> Prior to suspension, I ran several compilation jobs. They all finished
>> without error.
>>
>> You may find the output of
>>
>>   sudo btrfs inspect dump-tree -t root
>>
>> and
>>
>>   sudo btrfs inspect dump-super
>>
>> at http://termbin.com/ddxq and http://termbin.com/4mqt
>>
>> The stacktrace is pasted below at the complete dmesg output at http://termbin.com/kr2j
>>
>> As the bug affects the root partition, I suspect I won't be able to
>> boot the system after turning it off. Thus I leave it running for now
>> and can provide you with further information if so instructed.
>>
>> Please also let me know if you suspect any chance to repair this
>> filesystem.
>>
>> Best regards
>> Leonard
>>
>>
>> [354437.150593] ------------[ cut here ]------------
>> [354437.150639] WARNING: CPU: 3 PID: 9095 at fs/btrfs/extent-tree.c:4851 __btrfs_free_extent+0x20d/0x8fd [btrfs]
>> [354437.150641] Modules linked in: rfcomm cmac bnep msr bridge stp llc ip_tables x_tables serpent_sse2_x86_64 serpent_avx2 serpent_avx_x86_64 algif_skcipher dm_zero dm_thin_pool dm_persistent_data dm_bio_prison dm_service_time dm_round_robin dm_queue_length dm_multipath dm_log_userspace dm_flakey dm_delay virtio_scsi virtio_console sha1_generic iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ixgb ixgbe samsung_sxgbe tulip cxgb3 cxgb mdio cxgb4 vxge vxlan ip6_udp_tunnel udp_tunnel macvlan vmxnet3 virtio_net net_failover failover tg3 sky2 r8169 libphy pcnet32 mii igb dca e1000 bnx2 atl1c fuse overlay nfs lockd grace sunrpc btrfs zstd_decompress zstd_compress xxhash multipath linear raid10 raid1 raid0 dm_raid raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq dm_snapshot dm_bufio dm_mirror dm_region_hash dm_log firewire_sbp2 firewire_ohci firewire_core hid_sunplus hid_sony hid_samsung hid_pl hid_petalynx hid_monterey hid_microsoft hid_gyration hid_ezkey
>> [354437.150664]  hid_cypress hid_chicony hid_cherry hid_belkin hid_a4tech sl811_hcd xhci_plat_hcd usb_storage mpt3sas raid_class aic94xx libsas lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm megaraid aacraid sx8 hpsa 3w_9xxx 3w_xxxx mptsas mptfc scsi_transport_fc mptspi mptscsih mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth initio BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg pdc_adma sata_inic162x sata_mv ata_piix ahci libahci sata_qstor sata_vsc sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil sata_promise pata_sl82c105 pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_pdc202xx_old pata_triflex pata_atiixp pata_amd pata_ali pata_it8213 pata_pcmcia pcmcia pcmcia_core pata_ns87415 pata_ns87410 pata_serverworks pata_artop pata_it821x pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366 pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x pata_mpiix snd_hda_codec_hdmi btusb btrtl btbcm btintel uvcvideo bluetooth
>> [354437.150694]  videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev ecdh_generic ecc videobuf2_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel ath10k_pci ath10k_core ath mac80211 i915 i2c_algo_bit aesni_intel snd_hda_intel dell_laptop dell_wmi ledtrig_audio snd_hda_codec drm_kms_helper dell_smbios rtsx_pci_sdmmc intel_rapl_msr wmi_bmof sparse_keymap dell_wmi_descriptor aes_x86_64 cfg80211 input_leds crypto_simd snd_hda_core snd_hwdep cryptd drm dcdbas snd_pcm glue_helper i2c_i801 mmc_core rfkill processor_thermal_device libarc4 pcspkr serio_raw intel_rapl_common intel_pch_thermal intel_soc_dts_iosf iosf_mbi wmi int3403_thermal int340x_thermal_zone int3400_thermal acpi_thermal_rel joydev
>> [354437.150717] CPU: 3 PID: 9095 Comm: kworker/3:1 Tainted: G        W         5.3.6-gentoo-r1 #2
>> [354437.150718] Hardware name: Dell Inc. XPS 13 9360/06CC14, BIOS 2.11.0 03/14/2019
>> [354437.150729] Workqueue: events do_async_commit [btrfs]
>> [354437.150737] RIP: 0010:__btrfs_free_extent+0x20d/0x8fd [btrfs]
>> [354437.150739] Code: 48 83 eb 19 44 29 e8 83 f8 05 0f 8f a7 04 00 00 41 ff cd eb 88 83 fb fe 0f 85 9d 06 00 00 48 c7 c7 44 d5 17 c1 e8 47 6f fb d3 <0f> 0b 48 8b 7d 00 e8 26 26 00 00 4d 89 f0 4c 89 e9 48 c7 c6 4f dd
>> [354437.150740] RSP: 0018:ffff8e0b8605fc28 EFLAGS: 00010246
>> [354437.150741] RAX: 0000000000000024 RBX: 00000000fffffffe RCX: 0000000000000000
>> [354437.150742] RDX: 0000000000000000 RSI: ffff8ae42e397338 RDI: ffff8ae42e397338
>> [354437.150743] RBP: ffff8ae2a2bac310 R08: 0000000000000006 R09: ffffffff9f4db100
>> [354437.150744] R10: 0000000000003388 R11: ffff8e0b8605fad0 R12: ffff8ae2e9ec0208
>> [354437.150745] R13: 000001426cccc000 R14: 0000000000000101 R15: 00000000956e0000
>> [354437.150746] FS:  0000000000000000(0000) GS:ffff8ae42e380000(0000) knlGS:0000000000000000
>> [354437.150746] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [354437.150747] CR2: 00000000008c5487 CR3: 000000046a108001 CR4: 00000000003606e0
>> [354437.150748] Call Trace:
>> [354437.150758]  __btrfs_run_delayed_refs+0x690/0xc6c [btrfs]
>> [354437.150762]  ? __switch_to_asm+0x40/0x70
>> [354437.150770]  btrfs_run_delayed_refs+0x5e/0x149 [btrfs]
>> [354437.150778]  btrfs_commit_transaction+0x78/0x8a0 [btrfs]
>> [354437.150780]  ? __switch_to_asm+0x34/0x70
>> [354437.150781]  ? __switch_to_asm+0x40/0x70
>> [354437.150782]  ? __switch_to_asm+0x34/0x70
>> [354437.150783]  ? __switch_to_asm+0x40/0x70
>> [354437.150784]  ? __switch_to_asm+0x34/0x70
>> [354437.150792]  do_async_commit+0x1d/0x27 [btrfs]
>> [354437.150795]  process_one_work+0x16e/0x24e
>> [354437.150797]  ? rescuer_thread+0x28c/0x28c
>> [354437.150798]  worker_thread+0x1dc/0x2ac
>> [354437.150799]  kthread+0x10b/0x113
>> [354437.150801]  ? kthread_park+0x89/0x89
>> [354437.150802]  ret_from_fork+0x35/0x40
>> [354437.150804] ---[ end trace 85833d33b2b02bcf ]---
>> [354437.150807] BTRFS info (device dm-2): leaf 1426551308288 gen 2402058 total ptrs 138 free space 3656 owner 2
>> [354437.150808] 	item 0 key (1776065458176 168 262144) itemoff 16233 itemsize 50
>> [354437.150808] 		extent refs 2 gen 2399043 flags 1
>> [354437.150809] 		ref#0: shared data backref parent 1385529737216 count 1
>> [354437.150809] 		ref#1: shared data backref parent 1383731085312 count 1
>> [354437.150810] 	item 1 key (1776065720320 168 262144) itemoff 16157 itemsize 76
>> [354437.150811] 		extent refs 4 gen 2399043 flags 1
>> [354437.150811] 		ref#0: shared data backref parent 1478537773056 count 1
>> [354437.150812] 		ref#1: shared data backref parent 1469189111808 count 1
>> [354437.150812] 		ref#2: shared data backref parent 1385529737216 count 1
>> [354437.150813] 		ref#3: shared data backref parent 1384804827136 count 1
>> [354437.150814] 	item 2 key (1776066007040 168 4526080) itemoff 16104 itemsize 53
>> [354437.150814] 		extent refs 1 gen 1220365 flags 1
>> [354437.150814] 		ref#0: extent data backref root 2829 objectid 28509 offset 55762944 count 1
>> [354437.150816] 	item 3 key (1776070533120 168 262144) itemoff 16041 itemsize 63
>> [354437.150816] 		extent refs 3 gen 2399043 flags 1
>> [354437.150816] 		ref#0: shared data backref parent 1469189111808 count 1
>> [354437.150817] 		ref#1: shared data backref parent 1385529737216 count 1
>> [354437.150817] 		ref#2: shared data backref parent 1384804827136 count 1
>> [354437.150818] 	item 4 key (1776070795264 168 262144) itemoff 16004 itemsize 37
>> [354437.150819] 		extent refs 1 gen 2399043 flags 1
>> [354437.150819] 		ref#0: shared data backref parent 1384804827136 count 1
>> [354437.150820] 	item 5 key (1776071057408 168 262144) itemoff 15889 itemsize 115
>> [354437.150820] 		extent refs 7 gen 2399043 flags 1
>> [354437.150820] 		ref#0: shared data backref parent 1571827269632 count 1
>> [354437.150821] 		ref#1: shared data backref parent 1515792695296 count 1
>> [354437.150822] 		ref#2: shared data backref parent 1483800084480 count 1
>> [354437.150822] 		ref#3: shared data backref parent 1478537773056 count 1
>> [354437.150823] 		ref#4: shared data backref parent 1469189111808 count 1
>> [354437.150823] 		ref#5: shared data backref parent 1385529737216 count 1
>> [354437.150824] 		ref#6: shared data backref parent 1384804827136 count 1
>> [354437.150824] 	item 6 key (1776071319552 168 262144) itemoff 15761 itemsize 128
>> [354437.150825] 		extent refs 8 gen 2399043 flags 1
>> [354437.150825] 		ref#0: shared data backref parent 1571827269632 count 1
>> [354437.150826] 		ref#1: shared data backref parent 1515792695296 count 1
>> [354437.150826] 		ref#2: shared data backref parent 1483800084480 count 1
>> [354437.150827] 		ref#3: shared data backref parent 1478537773056 count 1
>> [354437.150827] 		ref#4: shared data backref parent 1469189111808 count 1
>> [354437.150828] 		ref#5: shared data backref parent 1385529737216 count 1
>> [354437.150828] 		ref#6: shared data backref parent 1385250930688 count 1
>> [354437.150829] 		ref#7: shared data backref parent 1384804827136 count 1
>> [354437.150830] 	item 7 key (1776071581696 168 262144) itemoff 15685 itemsize 76
>> [354437.150830] 		extent refs 4 gen 2399043 flags 1
>> [354437.150830] 		ref#0: shared data backref parent 1478537773056 count 1
>> [354437.150831] 		ref#1: shared data backref parent 1469189111808 count 1
>> [354437.150831] 		ref#2: shared data backref parent 1385529737216 count 1
>> [354437.150832] 		ref#3: shared data backref parent 1384804827136 count 1
>> [354437.150833] 	item 8 key (1776071843840 168 262144) itemoff 15596 itemsize 89
>> [354437.150833] 		extent refs 5 gen 2399043 flags 1
>> [354437.150833] 		ref#0: shared data backref parent 1483800084480 count 1
>> [354437.150834] 		ref#1: shared data backref parent 1478537773056 count 1
>> [354437.150834] 		ref#2: shared data backref parent 1469189111808 count 1
>> [354437.150835] 		ref#3: shared data backref parent 1385529737216 count 1
>> [354437.150835] 		ref#4: shared data backref parent 1384804827136 count 1
>> [354437.150836] 	item 9 key (1776072105984 168 262144) itemoff 15520 itemsize 76
>> [354437.150837] 		extent refs 4 gen 2399043 flags 1
>> [354437.150837] 		ref#0: shared data backref parent 1478537773056 count 1
>> [354437.150837] 		ref#1: shared data backref parent 1469189111808 count 1
>> [354437.150838] 		ref#2: shared data backref parent 1385529737216 count 1
>> [354437.150838] 		ref#3: shared data backref parent 1384804827136 count 1
>> [354437.150839] 	item 10 key (1776072368128 168 262144) itemoff 15444 itemsize 76
>> [354437.150840] 		extent refs 5 gen 2399043 flags 1
>> [354437.150840] 		ref#0: shared data backref parent 1478537773056 count 2
>> [354437.150841] 		ref#1: shared data backref parent 1469189111808 count 1
>> [354437.150841] 		ref#2: shared data backref parent 1385529737216 count 1
>> [354437.150842] 		ref#3: shared data backref parent 1384804827136 count 1
>> [354437.150842] 	item 11 key (1776072630272 168 262144) itemoff 15329 itemsize 115
>> [354437.150843] 		extent refs 7 gen 2399043 flags 1
>> [354437.150843] 		ref#0: shared data backref parent 1571827269632 count 1
>> [354437.150844] 		ref#1: shared data backref parent 1515792695296 count 1
>> [354437.150844] 		ref#2: shared data backref parent 1483800084480 count 1
>> [354437.150845] 		ref#3: shared data backref parent 1478537773056 count 1
>> [354437.150845] 		ref#4: shared data backref parent 1469189111808 count 1
>> [354437.150846] 		ref#5: shared data backref parent 1385529737216 count 1
>> [354437.150846] 		ref#6: shared data backref parent 1384804827136 count 1
>> [354437.150847] 	item 12 key (1776072892416 168 262144) itemoff 15240 itemsize 89
>> [354437.150847] 		extent refs 5 gen 2399043 flags 1
>> [354437.150848] 		ref#0: shared data backref parent 1483800084480 count 1
>> [354437.150848] 		ref#1: shared data backref parent 1478537773056 count 1
>> [354437.150849] 		ref#2: shared data backref parent 1469189111808 count 1
>> [354437.150849] 		ref#3: shared data backref parent 1385529737216 count 1
>> [354437.150850] 		ref#4: shared data backref parent 1384804827136 count 1
>> [354437.150851] 	item 13 key (1776073154560 168 262144) itemoff 15125 itemsize 115
>> [354437.150851] 		extent refs 7 gen 2399043 flags 1
>> [354437.150851] 		ref#0: shared data backref parent 1571827286016 count 1
>> [354437.150852] 		ref#1: shared data backref parent 1515792728064 count 1
>> [354437.150852] 		ref#2: shared data backref parent 1483638177792 count 1
>> [354437.150853] 		ref#3: shared data backref parent 1478537805824 count 1
>> [354437.150853] 		ref#4: shared data backref parent 1469189111808 count 1
>> [354437.150854] 		ref#5: shared data backref parent 1385529737216 count 1
>> [354437.150854] 		ref#6: shared data backref parent 1384804827136 count 1
>> [354437.150855] 	item 14 key (1776073416704 168 262144) itemoff 15088 itemsize 37
>> [354437.150856] 		extent refs 1 gen 2399043 flags 1
>> [354437.150856] 		ref#0: shared data backref parent 1384804892672 count 1
>> [354437.150857] 	item 15 key (1776073678848 168 262144) itemoff 15012 itemsize 76
>> [354437.150857] 		extent refs 4 gen 2399043 flags 1
>> [354437.150857] 		ref#0: shared data backref parent 1478537805824 count 1
>> [354437.150858] 		ref#1: shared data backref parent 1469188898816 count 1
>> [354437.150858] 		ref#2: shared data backref parent 1385534652416 count 1
>> [354437.150859] 		ref#3: shared data backref parent 1384804892672 count 1
>> [354437.150860] 	item 16 key (1776073940992 168 393216) itemoff 14884 itemsize 128
>> [354437.150860] 		extent refs 8 gen 2399043 flags 1
>> [354437.150860] 		ref#0: shared data backref parent 1571827286016 count 1
>> [354437.150861] 		ref#1: shared data backref parent 1515792728064 count 1
>> [354437.150861] 		ref#2: shared data backref parent 1483638177792 count 1
>> [354437.150862] 		ref#3: shared data backref parent 1478537805824 count 1
>> [354437.150862] 		ref#4: shared data backref parent 1469188898816 count 1
>> [354437.150863] 		ref#5: shared data backref parent 1385534652416 count 1
>> [354437.150864] 		ref#6: shared data backref parent 1385251684352 count 1
>> [354437.150864] 		ref#7: shared data backref parent 1384804892672 count 1
>> [354437.150865] 	item 17 key (1776074334208 168 262144) itemoff 14626 itemsize 258
>> [354437.150865] 		extent refs 19 gen 2399043 flags 1
>> [354437.150866] 		ref#0: shared data backref parent 1571827286016 count 1
>> [354437.150866] 		ref#1: shared data backref parent 1571768385536 count 1
>> [354437.150867] 		ref#2: shared data backref parent 1515792728064 count 1
>> [354437.150867] 		ref#3: shared data backref parent 1483744641024 count 1
>> [354437.150868] 		ref#4: shared data backref parent 1483638177792 count 1
>> [354437.150868] 		ref#5: shared data backref parent 1478537805824 count 1
>> [354437.150869] 		ref#6: shared data backref parent 1469188898816 count 1
>> [354437.150869] 		ref#7: shared data backref parent 1468957556736 count 1
>> [354437.150870] 		ref#8: shared data backref parent 1468373499904 count 2
>> [354437.150870] 		ref#9: shared data backref parent 1452915392512 count 1
>> [354437.150871] 		ref#10: shared data backref parent 1452214419456 count 1
>> [354437.150871] 		ref#11: shared data backref parent 1385534652416 count 1
>> [354437.150872] 		ref#12: shared data backref parent 1385251684352 count 1
>> [354437.150872] 		ref#13: shared data backref parent 1384934653952 count 1
>> [354437.150873] 		ref#14: shared data backref parent 1384831401984 count 1
>> [354437.150873] 		ref#15: shared data backref parent 1384804892672 count 1
>> [354437.150874] 		ref#16: shared data backref parent 1321904685056 count 1
>> [354437.150874] 		ref#17: shared data backref parent 1321555132416 count 1
>> [354437.150875] 	item 18 key (1776074596352 168 262144) itemoff 14576 itemsize 50
>> [354437.150876] 		extent refs 2 gen 2399043 flags 1
>> [354437.150876] 		ref#0: shared data backref parent 1385534652416 count 1
>> [354437.150877] 		ref#1: shared data backref parent 1384804892672 count 1
>> [354437.150877] 	item 19 key (1776074907648 168 262144) itemoff 14474 itemsize 102
>> [354437.150878] 		extent refs 6 gen 2399058 flags 1
>> [354437.150878] 		ref#0: shared data backref parent 1571827236864 count 1
>> [354437.150879] 		ref#1: shared data backref parent 1515792482304 count 1
>> [354437.150879] 		ref#2: shared data backref parent 1483799920640 count 1
>> [354437.150880] 		ref#3: shared data backref parent 1478537527296 count 1
>> [354437.150880] 		ref#4: shared data backref parent 1469187604480 count 1
>> [354437.150881] 		ref#5: shared data backref parent 1385522872320 count 1
>> [354437.150881] 	item 20 key (1776075169792 168 262144) itemoff 14411 itemsize 63
>> [354437.150882] 		extent refs 3 gen 2399058 flags 1
>> [354437.150882] 		ref#0: shared data backref parent 1478537576448 count 1
>> [354437.150883] 		ref#1: shared data backref parent 1469187604480 count 1
>> [354437.150883] 		ref#2: shared data backref parent 1385522872320 count 1
>> [354437.150884] 	item 21 key (1776075431936 168 262144) itemoff 14322 itemsize 89
>> [354437.150884] 		extent refs 5 gen 2399058 flags 1
>> [354437.150885] 		ref#0: shared data backref parent 1515792482304 count 1
>> [354437.150885] 		ref#1: shared data backref parent 1483800068096 count 1
>> [354437.150886] 		ref#2: shared data backref parent 1478537576448 count 1
>> [354437.150886] 		ref#3: shared data backref parent 1469187604480 count 1
>> [354437.150887] 		ref#4: shared data backref parent 1385522872320 count 1
>> [354437.150888] 	item 22 key (1776075694080 168 524288) itemoff 14259 itemsize 63
>> [354437.150888] 		extent refs 4 gen 2399058 flags 1
>> [354437.150888] 		ref#0: shared data backref parent 1478537691136 count 1
>> [354437.150889] 		ref#1: shared data backref parent 1469188751360 count 2
>> [354437.150889] 		ref#2: shared data backref parent 1385526755328 count 1
>> [354437.150890] 	item 23 key (1776076218368 168 262144) itemoff 14196 itemsize 63
>> [354437.150890] 		extent refs 3 gen 2399058 flags 1
>> [354437.150891] 		ref#0: shared data backref parent 1478537691136 count 1
>> [354437.150891] 		ref#1: shared data backref parent 1469188751360 count 1
>> [354437.150892] 		ref#2: shared data backref parent 1385526755328 count 1
>> [354437.150893] 	item 24 key (1776076480512 168 524288) itemoff 14094 itemsize 102
>> [354437.150893] 		extent refs 6 gen 2399058 flags 1
>> [354437.150893] 		ref#0: shared data backref parent 1571827335168 count 1
>> [354437.150894] 		ref#1: shared data backref parent 1515792531456 count 1
>> [354437.150894] 		ref#2: shared data backref parent 1483800100864 count 1
>> [354437.150895] 		ref#3: shared data backref parent 1478537691136 count 1
>> [354437.150895] 		ref#4: shared data backref parent 1469188751360 count 1
>> [354437.150896] 		ref#5: shared data backref parent 1385526755328 count 1
>> [354437.150897] 	item 25 key (1776077004800 168 262144) itemoff 13992 itemsize 102
>> [354437.150897] 		extent refs 6 gen 2399058 flags 1
>> [354437.150897] 		ref#0: shared data backref parent 1571827335168 count 1
>> [354437.150898] 		ref#1: shared data backref parent 1515792531456 count 1
>> [354437.150898] 		ref#2: shared data backref parent 1483800100864 count 1
>> [354437.150899] 		ref#3: shared data backref parent 1478537691136 count 1
>> [354437.150899] 		ref#4: shared data backref parent 1469188751360 count 1
>> [354437.150900] 		ref#5: shared data backref parent 1385526755328 count 1
>> [354437.150901] 	item 26 key (1776077266944 168 524288) itemoff 13903 itemsize 89
>> [354437.150901] 		extent refs 5 gen 2399058 flags 1
>> [354437.150901] 		ref#0: shared data backref parent 1515792531456 count 1
>> [354437.150902] 		ref#1: shared data backref parent 1483800084480 count 1
>> [354437.150902] 		ref#2: shared data backref parent 1478537773056 count 1
>> [354437.150903] 		ref#3: shared data backref parent 1469188751360 count 1
>> [354437.150903] 		ref#4: shared data backref parent 1385526755328 count 1
>> [354437.150904] 	item 27 key (1776077791232 168 262144) itemoff 13840 itemsize 63
>> [354437.150905] 		extent refs 3 gen 2399058 flags 1
>> [354437.150905] 		ref#0: shared data backref parent 1478537773056 count 1
>> [354437.150905] 		ref#1: shared data backref parent 1469189111808 count 1
>> [354437.150906] 		ref#2: shared data backref parent 1385529737216 count 1
>> [354437.150907] 	item 28 key (1776078053376 168 262144) itemoff 13777 itemsize 63
>> [354437.150907] 		extent refs 3 gen 2399058 flags 1
>> [354437.150907] 		ref#0: shared data backref parent 1478537773056 count 1
>> [354437.150908] 		ref#1: shared data backref parent 1469189111808 count 1
>> [354437.150908] 		ref#2: shared data backref parent 1385529737216 count 1
>> [354437.150909] 	item 29 key (1776078315520 168 262144) itemoff 13740 itemsize 37
>> [354437.150910] 		extent refs 1 gen 2399058 flags 1
>> [354437.150910] 		ref#0: shared data backref parent 1385529737216 count 1
>> [354437.150911] 	item 30 key (1776078577664 168 262144) itemoff 13703 itemsize 37
>> [354437.150911] 		extent refs 1 gen 2399058 flags 1
>> [354437.150911] 		ref#0: shared data backref parent 1385529737216 count 1
>> [354437.150912] 	item 31 key (1776078839808 168 262144) itemoff 13601 itemsize 102
>> [354437.150913] 		extent refs 6 gen 2399058 flags 1
>> [354437.150913] 		ref#0: shared data backref parent 1571827269632 count 1
>> [354437.150914] 		ref#1: shared data backref parent 1515792695296 count 1
>> [354437.150914] 		ref#2: shared data backref parent 1483800084480 count 1
>> [354437.150915] 		ref#3: shared data backref parent 1478537773056 count 1
>> [354437.150915] 		ref#4: shared data backref parent 1469189111808 count 1
>> [354437.150916] 		ref#5: shared data backref parent 1385529737216 count 1
>> [354437.150916] 	item 32 key (1776079101952 168 524288) itemoff 13538 itemsize 63
>> [354437.150917] 		extent refs 3 gen 2399058 flags 1
>> [354437.150917] 		ref#0: shared data backref parent 1478537773056 count 1
>> [354437.150918] 		ref#1: shared data backref parent 1469189111808 count 1
>> [354437.150918] 		ref#2: shared data backref parent 1385529737216 count 1
>> [354437.150919] 	item 33 key (1776079626240 168 262144) itemoff 13462 itemsize 76
>> [354437.150919] 		extent refs 4 gen 2399058 flags 1
>> [354437.150920] 		ref#0: shared data backref parent 1483800084480 count 1
>> [354437.150920] 		ref#1: shared data backref parent 1478537773056 count 1
>> [354437.150921] 		ref#2: shared data backref parent 1469189111808 count 1
>> [354437.150921] 		ref#3: shared data backref parent 1385529737216 count 1
>> [354437.150922] 	item 34 key (1776079888384 168 262144) itemoff 13373 itemsize 89
>> [354437.150922] 		extent refs 5 gen 2399058 flags 1
>> [354437.150923] 		ref#0: shared data backref parent 1515792728064 count 1
>> [354437.150923] 		ref#1: shared data backref parent 1483638177792 count 1
>> [354437.150924] 		ref#2: shared data backref parent 1478537805824 count 1
>> [354437.150924] 		ref#3: shared data backref parent 1469189111808 count 1
>> [354437.150925] 		ref#4: shared data backref parent 1385529737216 count 1
>> [354437.150926] 	item 35 key (1776080150528 168 262144) itemoff 13310 itemsize 63
>> [354437.150926] 		extent refs 3 gen 2399058 flags 1
>> [354437.150926] 		ref#0: shared data backref parent 1478537805824 count 1
>> [354437.150927] 		ref#1: shared data backref parent 1469189111808 count 1
>> [354437.150927] 		ref#2: shared data backref parent 1385529737216 count 1
>> [354437.150928] 	item 36 key (1776080412672 168 262144) itemoff 13208 itemsize 102
>> [354437.150928] 		extent refs 7 gen 2399058 flags 1
>> [354437.150929] 		ref#0: shared data backref parent 1571827286016 count 1
>> [354437.150929] 		ref#1: shared data backref parent 1515792728064 count 1
>> [354437.150930] 		ref#2: shared data backref parent 1483638177792 count 1
>> [354437.150930] 		ref#3: shared data backref parent 1478537805824 count 2
>> [354437.150931] 		ref#4: shared data backref parent 1469188898816 count 1
>> [354437.150931] 		ref#5: shared data backref parent 1385534652416 count 1
>> [354437.150932] 	item 37 key (1776080674816 168 262144) itemoff 13132 itemsize 76
>> [354437.150933] 		extent refs 4 gen 2399058 flags 1
>> [354437.150933] 		ref#0: shared data backref parent 1483638177792 count 1
>> [354437.150933] 		ref#1: shared data backref parent 1478537805824 count 1
>> [354437.150934] 		ref#2: shared data backref parent 1469188898816 count 1
>> [354437.150934] 		ref#3: shared data backref parent 1385534652416 count 1
>> [354437.150935] 	item 38 key (1776080936960 168 262144) itemoff 13004 itemsize 128
>> [354437.150936] 		extent refs 8 gen 2399058 flags 1
>> [354437.150936] 		ref#0: shared data backref parent 1571827286016 count 1
>> [354437.150936] 		ref#1: shared data backref parent 1515792728064 count 1
>> [354437.150937] 		ref#2: shared data backref parent 1483638177792 count 1
>> [354437.150937] 		ref#3: shared data backref parent 1478537805824 count 1
>> [354437.150938] 		ref#4: shared data backref parent 1469188898816 count 1
>> [354437.150938] 		ref#5: shared data backref parent 1452915392512 count 1
>> [354437.150939] 		ref#6: shared data backref parent 1385534652416 count 1
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>> [354437.151076] 		extent refs 1 gen 2399072 flags 1
>> [354437.151077] 		ref#0: shared data backref parent 1426579374080 count 1
>> [354437.151078] 	item 99 key (1776114479104 168 262144) itemoff 9529 itemsize 37
>> [354437.151078] 		extent refs 1 gen 2399058 flags 1
>> [354437.151078] 		ref#0: shared data backref parent 1426547474432 count 1
>> [354437.151079] 	item 100 key (1776114741248 168 262144) itemoff 9401 itemsize 128
>> [354437.151079] 		extent refs 8 gen 2399058 flags 1
>> [354437.151080] 		ref#0: shared data backref parent 1714666438656 count 1
>> [354437.151080] 		ref#1: shared data backref parent 1515779833856 count 1
>> [354437.151081] 		ref#2: shared data backref parent 1483791351808 count 1
>> [354437.151081] 		ref#3: shared data backref parent 1478528368640 count 1
>> [354437.151082] 		ref#4: shared data backref parent 1469123837952 count 1
>> [354437.151082] 		ref#5: shared data backref parent 1452904153088 count 1
>> [354437.151083] 		ref#6: shared data backref parent 1426547474432 count 1
>> [354437.151083] 		ref#7: shared data backref parent 1385237217280 count 1
>> [354437.151084] 	item 101 key (1776115003392 168 262144) itemoff 9364 itemsize 37
>> [354437.151085] 		extent refs 1 gen 2399058 flags 1
>> [354437.151085] 		ref#0: shared data backref parent 1426547474432 count 1
>> [354437.151086] 	item 102 key (1776115265536 168 262144) itemoff 9327 itemsize 37
>> [354437.151086] 		extent refs 1 gen 2399058 flags 1
>> [354437.151086] 		ref#0: shared data backref parent 1426547474432 count 1
>> [354437.151087] 	item 103 key (1776115527680 168 262144) itemoff 9290 itemsize 37
>> [354437.151088] 		extent refs 1 gen 2399058 flags 1
>> [354437.151088] 		ref#0: shared data backref parent 1426547474432 count 1
>> [354437.151096] 	item 104 key (1776115789824 168 262144) itemoff 9227 itemsize 63
>> [354437.151097] 		extent refs 3 gen 2399058 flags 1
>> [354437.151098] 		ref#0: shared data backref parent 1478528368640 count 1
>> [354437.151099] 		ref#1: shared data backref parent 1469123837952 count 1
>> [354437.151099] 		ref#2: shared data backref parent 1426547474432 count 1
>> [354437.151101] 	item 105 key (1776116051968 168 262144) itemoff 9190 itemsize 37
>> [354437.151101] 		extent refs 1 gen 2399058 flags 1
>> [354437.151102] 		ref#0: shared data backref parent 1426547474432 count 1
>> [354437.151103] 	item 106 key (1776116314112 168 262144) itemoff 9114 itemsize 76
>> [354437.151103] 		extent refs 4 gen 2399058 flags 1
>> [354437.151104] 		ref#0: shared data backref parent 1478528368640 count 1
>> [354437.151104] 		ref#1: shared data backref parent 1469123837952 count 1
>> [354437.151105] 		ref#2: shared data backref parent 1427070894080 count 1
>> [354437.151106] 		ref#3: shared data backref parent 1426590777344 count 1
>> [354437.151107] 	item 107 key (1776116576256 168 262144) itemoff 9064 itemsize 50
>> [354437.151108] 		extent refs 2 gen 2399058 flags 1
>> [354437.151108] 		ref#0: shared data backref parent 1427070894080 count 1
>> [354437.151109] 		ref#1: shared data backref parent 1426590777344 count 1
>> [354437.151110] 	item 108 key (1776116838400 168 524288) itemoff 8988 itemsize 76
>> [354437.151110] 		extent refs 4 gen 2399058 flags 1
>> [354437.151111] 		ref#0: shared data backref parent 1478528368640 count 1
>> [354437.151111] 		ref#1: shared data backref parent 1469123837952 count 1
>> [354437.151112] 		ref#2: shared data backref parent 1427070894080 count 1
>> [354437.151113] 		ref#3: shared data backref parent 1426590777344 count 1
>> [354437.151114] 	item 109 key (1776117493760 168 262144) itemoff 8935 itemsize 53
>> [354437.151114] 		extent refs 1 gen 1151293 flags 1
>> [354437.151115] 		ref#0: extent data backref root 257 objectid 10994497 offset 683573248 count 1
>> [354437.151116] 	item 110 key (1776117755904 168 262144) itemoff 8846 itemsize 89
>> [354437.151117] 		extent refs 5 gen 2399058 flags 1
>> [354437.151117] 		ref#0: shared data backref parent 1483791351808 count 1
>> [354437.151118] 		ref#1: shared data backref parent 1478528368640 count 1
>> [354437.151119] 		ref#2: shared data backref parent 1469123837952 count 1
>> [354437.151119] 		ref#3: shared data backref parent 1427070894080 count 1
>> [354437.151120] 		ref#4: shared data backref parent 1426590777344 count 1
>> [354437.151121] 	item 111 key (1776118018048 168 262144) itemoff 8770 itemsize 76
>> [354437.151122] 		extent refs 4 gen 2399058 flags 1
>> [354437.151122] 		ref#0: shared data backref parent 1478528483328 count 1
>> [354437.151123] 		ref#1: shared data backref parent 1469123969024 count 1
>> [354437.151124] 		ref#2: shared data backref parent 1427070894080 count 1
>> [354437.151125] 		ref#3: shared data backref parent 1426590777344 count 1
>> [354437.151127] 	item 112 key (1776118280192 168 262144) itemoff 8720 itemsize 50
>> [354437.151128] 		extent refs 2 gen 2399068 flags 1
>> [354437.151128] 		ref#0: shared data backref parent 1469123837952 count 1
>> [354437.151129] 		ref#1: shared data backref parent 1426547474432 count 1
>> [354437.151130] 	item 113 key (1776118542336 168 262144) itemoff 8657 itemsize 63
>> [354437.151131] 		extent refs 3 gen 2399058 flags 1
>> [354437.151131] 		ref#0: shared data backref parent 1469123969024 count 1
>> [354437.151132] 		ref#1: shared data backref parent 1427070894080 count 1
>> [354437.151132] 		ref#2: shared data backref parent 1426590777344 count 1
>> [354437.151133] 	item 114 key (1776118804480 168 262144) itemoff 8607 itemsize 50
>> [354437.151134] 		extent refs 2 gen 2399058 flags 1
>> [354437.151135] 		ref#0: shared data backref parent 1427070894080 count 1
>> [354437.151135] 		ref#1: shared data backref parent 1426590777344 count 1
>> [354437.151136] 	item 115 key (1776119066624 168 262144) itemoff 8557 itemsize 50
>> [354437.151137] 		extent refs 2 gen 2399058 flags 1
>> [354437.151137] 		ref#0: shared data backref parent 1427070894080 count 1
>> [354437.151138] 		ref#1: shared data backref parent 1426590777344 count 1
>> [354437.151139] 	item 116 key (1776119328768 168 262144) itemoff 8507 itemsize 50
>> [354437.151140] 		extent refs 2 gen 2399070 flags 1
>> [354437.151140] 		ref#0: shared data backref parent 1469123837952 count 1
>> [354437.151141] 		ref#1: shared data backref parent 1426547474432 count 1
>> [354437.151142] 	item 117 key (1776119590912 168 262144) itemoff 8457 itemsize 50
>> [354437.151143] 		extent refs 2 gen 2399058 flags 1
>> [354437.151143] 		ref#0: shared data backref parent 1427070894080 count 1
>> [354437.151144] 		ref#1: shared data backref parent 1426590777344 count 1
>> [354437.151145] 	item 118 key (1776119853056 168 262144) itemoff 8290 itemsize 167
>> [354437.151146] 		extent refs 11 gen 2399058 flags 1
>> [354437.151146] 		ref#0: shared data backref parent 1571793682432 count 1
>> [354437.151147] 		ref#1: shared data backref parent 1571572596736 count 1
>> [354437.151147] 		ref#2: shared data backref parent 1515779866624 count 1
>> [354437.151148] 		ref#3: shared data backref parent 1483791384576 count 1
>> [354437.151149] 		ref#4: shared data backref parent 1478528483328 count 1
>> [354437.151150] 		ref#5: shared data backref parent 1469123969024 count 1
>> [354437.151150] 		ref#6: shared data backref parent 1468514566144 count 1
>> [354437.151151] 		ref#7: shared data backref parent 1452904169472 count 1
>> [354437.151152] 		ref#8: shared data backref parent 1427070894080 count 1
>> [354437.151153] 		ref#9: shared data backref parent 1426590777344 count 1
>> [354437.151154] 		ref#10: shared data backref parent 1385237430272 count 1
>> [354437.151155] 	item 119 key (1776120115200 168 262144) itemoff 8188 itemsize 102
>> [354437.151156] 		extent refs 6 gen 2399058 flags 1
>> [354437.151156] 		ref#0: shared data backref parent 1515779866624 count 1
>> [354437.151157] 		ref#1: shared data backref parent 1483791384576 count 1
>> [354437.151158] 		ref#2: shared data backref parent 1478528483328 count 1
>> [354437.151158] 		ref#3: shared data backref parent 1469123969024 count 1
>> [354437.151159] 		ref#4: shared data backref parent 1427070894080 count 1
>> [354437.151160] 		ref#5: shared data backref parent 1426590777344 count 1
>> [354437.151161] 	item 120 key (1776120377344 168 262144) itemoff 8138 itemsize 50
>> [354437.151162] 		extent refs 2 gen 2399070 flags 1
>> [354437.151162] 		ref#0: shared data backref parent 1427070894080 count 1
>> [354437.151163] 		ref#1: shared data backref parent 1426590777344 count 1
>> [354437.151164] 	item 121 key (1776120639488 168 524288) itemoff 8075 itemsize 63
>> [354437.151164] 		extent refs 3 gen 2399058 flags 1
>> [354437.151165] 		ref#0: shared data backref parent 1469123969024 count 1
>> [354437.151165] 		ref#1: shared data backref parent 1427070894080 count 1
>> [354437.151166] 		ref#2: shared data backref parent 1426590777344 count 1
>> [354437.151168] 	item 122 key (1776121163776 168 524288) itemoff 8025 itemsize 50
>> [354437.151168] 		extent refs 2 gen 2399058 flags 1
>> [354437.151169] 		ref#0: shared data backref parent 1427070894080 count 1
>> [354437.151169] 		ref#1: shared data backref parent 1426590777344 count 1
>> [354437.151171] 	item 123 key (1776121688064 168 778240) itemoff 7910 itemsize 115
>> [354437.151171] 		extent refs 9 gen 2399058 flags 1
>> [354437.151171] 		ref#0: shared data backref parent 1571793682432 count 1
>> [354437.151172] 		ref#1: shared data backref parent 1515779866624 count 1
>> [354437.151173] 		ref#2: shared data backref parent 1483791384576 count 1
>> [354437.151173] 		ref#3: shared data backref parent 1478528483328 count 2
>> [354437.151174] 		ref#4: shared data backref parent 1469123969024 count 2
>> [354437.151175] 		ref#5: shared data backref parent 1427070894080 count 1
>> [354437.151175] 		ref#6: shared data backref parent 1426590777344 count 1
>> [354437.151177] 	item 124 key (1776122466304 168 262144) itemoff 7860 itemsize 50
>> [354437.151177] 		extent refs 2 gen 2399058 flags 1
>> [354437.151178] 		ref#0: shared data backref parent 1427070894080 count 1
>> [354437.151178] 		ref#1: shared data backref parent 1426590777344 count 1
>> [354437.151179] 	item 125 key (1776122728448 168 262144) itemoff 7797 itemsize 63
>> [354437.151180] 		extent refs 3 gen 2399058 flags 1
>> [354437.151180] 		ref#0: shared data backref parent 1469123969024 count 1
>> [354437.151181] 		ref#1: shared data backref parent 1427070894080 count 1
>> [354437.151182] 		ref#2: shared data backref parent 1426590777344 count 1
>> [354437.151183] 	item 126 key (1776122990592 168 262144) itemoff 7708 itemsize 89
>> [354437.151183] 		extent refs 5 gen 2399058 flags 1
>> [354437.151184] 		ref#0: shared data backref parent 1483791384576 count 1
>> [354437.151184] 		ref#1: shared data backref parent 1478528483328 count 1
>> [354437.151185] 		ref#2: shared data backref parent 1469123969024 count 1
>> [354437.151186] 		ref#3: shared data backref parent 1427070894080 count 1
>> [354437.151186] 		ref#4: shared data backref parent 1426590777344 count 1
>> [354437.151188] 	item 127 key (1776123252736 168 262144) itemoff 7632 itemsize 76
>> [354437.151188] 		extent refs 4 gen 2399058 flags 1
>> [354437.151189] 		ref#0: shared data backref parent 1483791384576 count 1
>> [354437.151189] 		ref#1: shared data backref parent 1478528483328 count 1
>> [354437.151190] 		ref#2: shared data backref parent 1469123969024 count 1
>> [354437.151191] 		ref#3: shared data backref parent 1426549227520 count 1
>> [354437.151192] 	item 128 key (1776123514880 168 262144) itemoff 7595 itemsize 37
>> [354437.151192] 		extent refs 1 gen 2399058 flags 1
>> [354437.151193] 		ref#0: shared data backref parent 1426549227520 count 1
>> [354437.151194] 	item 129 key (1776123777024 168 262144) itemoff 7558 itemsize 37
>> [354437.151195] 		extent refs 1 gen 2399058 flags 1
>> [354437.151195] 		ref#0: shared data backref parent 1426549227520 count 1
>> [354437.151197] 	item 130 key (1776124039168 168 262144) itemoff 7469 itemsize 89
>> [354437.151197] 		extent refs 5 gen 2399070 flags 1
>> [354437.151198] 		ref#0: shared data backref parent 1515779899392 count 1
>> [354437.151199] 		ref#1: shared data backref parent 1483791171584 count 1
>> [354437.151199] 		ref#2: shared data backref parent 1478528548864 count 1
>> [354437.151200] 		ref#3: shared data backref parent 1469124231168 count 1
>> [354437.151201] 		ref#4: shared data backref parent 1426548834304 count 1
>> [354437.151202] 	item 131 key (1776124301312 168 262144) itemoff 7419 itemsize 50
>> [354437.151203] 		extent refs 2 gen 2399058 flags 1
>> [354437.151203] 		ref#0: shared data backref parent 1469123969024 count 1
>> [354437.151204] 		ref#1: shared data backref parent 1426549227520 count 1
>> [354437.151205] 	item 132 key (1776124563456 168 262144) itemoff 7356 itemsize 63
>> [354437.151206] 		extent refs 3 gen 2399070 flags 1
>> [354437.151206] 		ref#0: shared data backref parent 1469126475776 count 1
>> [354437.151207] 		ref#1: shared data backref parent 1427073351680 count 1
>> [354437.151208] 		ref#2: shared data backref parent 1426582634496 count 1
>> [354437.151209] 	item 133 key (1776124825600 168 262144) itemoff 7319 itemsize 37
>> [354437.151210] 		extent refs 1 gen 2399058 flags 1
>> [354437.151210] 		ref#0: shared data backref parent 1426549227520 count 1
>> [354437.151211] 	item 134 key (1776125087744 168 524288) itemoff 7256 itemsize 63
>> [354437.151212] 		extent refs 3 gen 2399058 flags 1
>> [354437.151212] 		ref#0: shared data backref parent 1478528483328 count 1
>> [354437.151213] 		ref#1: shared data backref parent 1469123969024 count 1
>> [354437.151214] 		ref#2: shared data backref parent 1426549227520 count 1
>> [354437.151215] 	item 135 key (1776125612032 168 262144) itemoff 7193 itemsize 63
>> [354437.151215] 		extent refs 4 gen 2399058 flags 1
>> [354437.151216] 		ref#0: shared data backref parent 1478528483328 count 2
>> [354437.151216] 		ref#1: shared data backref parent 1469123969024 count 1
>> [354437.151217] 		ref#2: shared data backref parent 1426549227520 count 1
>> [354437.151218] 	item 136 key (1776125874176 168 262144) itemoff 7156 itemsize 37
>> [354437.151219] 		extent refs 1 gen 2399058 flags 1
>> [354437.151219] 		ref#0: shared data backref parent 1426549227520 count 1
>> [354437.151221] 	item 137 key (1776126136320 168 262144) itemoff 7106 itemsize 50
>> [354437.151221] 		extent refs 2 gen 2399058 flags 1
>> [354437.151222] 		ref#0: shared data backref parent 1469123969024 count 1
>> [354437.151222] 		ref#1: shared data backref parent 1426549227520 count 1
>> [354437.151225] BTRFS error (device dm-2): unable to find ref byte nr 1776065458176 parent 1384804827136 root 257  owner 10994873 offset 2507014144
>> [354437.151226] ------------[ cut here ]------------
>> [354437.151227] BTRFS: Transaction aborted (error -2)
>> [354437.151262] WARNING: CPU: 3 PID: 9095 at fs/btrfs/extent-tree.c:4857 __btrfs_free_extent+0x260/0x8fd [btrfs]
>> [354437.151263] Modules linked in: rfcomm cmac bnep msr bridge stp llc ip_tables x_tables serpent_sse2_x86_64 serpent_avx2 serpent_avx_x86_64 algif_skcipher dm_zero dm_thin_pool dm_persistent_data dm_bio_prison dm_service_time dm_round_robin dm_queue_length dm_multipath dm_log_userspace dm_flakey dm_delay virtio_scsi virtio_console sha1_generic iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ixgb ixgbe samsung_sxgbe tulip cxgb3 cxgb mdio cxgb4 vxge vxlan ip6_udp_tunnel udp_tunnel macvlan vmxnet3 virtio_net net_failover failover tg3 sky2 r8169 libphy pcnet32 mii igb dca e1000 bnx2 atl1c fuse overlay nfs lockd grace sunrpc btrfs zstd_decompress zstd_compress xxhash multipath linear raid10 raid1 raid0 dm_raid raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq dm_snapshot dm_bufio dm_mirror dm_region_hash dm_log firewire_sbp2 firewire_ohci firewire_core hid_sunplus hid_sony hid_samsung hid_pl hid_petalynx hid_monterey hid_microsoft hid_gyration hid_ezkey
>> [354437.151288]  hid_cypress hid_chicony hid_cherry hid_belkin hid_a4tech sl811_hcd xhci_plat_hcd usb_storage mpt3sas raid_class aic94xx libsas lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm megaraid aacraid sx8 hpsa 3w_9xxx 3w_xxxx mptsas mptfc scsi_transport_fc mptspi mptscsih mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth initio BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg pdc_adma sata_inic162x sata_mv ata_piix ahci libahci sata_qstor sata_vsc sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil sata_promise pata_sl82c105 pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_pdc202xx_old pata_triflex pata_atiixp pata_amd pata_ali pata_it8213 pata_pcmcia pcmcia pcmcia_core pata_ns87415 pata_ns87410 pata_serverworks pata_artop pata_it821x pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366 pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x pata_mpiix snd_hda_codec_hdmi btusb btrtl btbcm btintel uvcvideo bluetooth
>> [354437.151313]  videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev ecdh_generic ecc videobuf2_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel ath10k_pci ath10k_core ath mac80211 i915 i2c_algo_bit aesni_intel snd_hda_intel dell_laptop dell_wmi ledtrig_audio snd_hda_codec drm_kms_helper dell_smbios rtsx_pci_sdmmc intel_rapl_msr wmi_bmof sparse_keymap dell_wmi_descriptor aes_x86_64 cfg80211 input_leds crypto_simd snd_hda_core snd_hwdep cryptd drm dcdbas snd_pcm glue_helper i2c_i801 mmc_core rfkill processor_thermal_device libarc4 pcspkr serio_raw intel_rapl_common intel_pch_thermal intel_soc_dts_iosf iosf_mbi wmi int3403_thermal int340x_thermal_zone int3400_thermal acpi_thermal_rel joydev
>> [354437.151333] CPU: 3 PID: 9095 Comm: kworker/3:1 Tainted: G        W         5.3.6-gentoo-r1 #2
>> [354437.151334] Hardware name: Dell Inc. XPS 13 9360/06CC14, BIOS 2.11.0 03/14/2019
>> [354437.151347] Workqueue: events do_async_commit [btrfs]
>> [354437.151360] RIP: 0010:__btrfs_free_extent+0x260/0x8fd [btrfs]
>> [354437.151361] Code: e8 b7 8d 08 00 49 8b 44 24 50 f0 48 0f ba a8 c0 0c 00 00 02 0f 92 c0 5a 84 c0 75 10 89 de 48 c7 c7 05 d6 17 c1 e8 a6 fc f6 d3 <0f> 0b b9 fe ff ff ff ba f9 12 00 00 48 c7 c6 10 99 17 c1 4c 89 e7
>> [354437.151363] RSP: 0018:ffff8e0b8605fc28 EFLAGS: 00010282
>> [354437.151364] RAX: 0000000000000000 RBX: 00000000fffffffe RCX: 0000000000000007
>> [354437.151365] RDX: 00000000000010b2 RSI: 0000000000000002 RDI: ffff8ae42e397330
>> [354437.151366] RBP: ffff8ae2a2bac310 R08: 0000000000000006 R09: 0000000000020500
>> [354437.151367] R10: 0000000000011630 R11: 0000000c1993c1e5 R12: ffff8ae2e9ec0208
>> [354437.151368] R13: 000001426cccc000 R14: 0000000000000101 R15: 00000000956e0000
>> [354437.151370] FS:  0000000000000000(0000) GS:ffff8ae42e380000(0000) knlGS:0000000000000000
>> [354437.151371] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [354437.151372] CR2: 00000000008c5487 CR3: 000000046a108001 CR4: 00000000003606e0
>> [354437.151373] Call Trace:
>> [354437.151387]  __btrfs_run_delayed_refs+0x690/0xc6c [btrfs]
>> [354437.151391]  ? __switch_to_asm+0x40/0x70
>> [354437.151403]  btrfs_run_delayed_refs+0x5e/0x149 [btrfs]
>> [354437.151416]  btrfs_commit_transaction+0x78/0x8a0 [btrfs]
>> [354437.151418]  ? __switch_to_asm+0x34/0x70
>> [354437.151419]  ? __switch_to_asm+0x40/0x70
>> [354437.151420]  ? __switch_to_asm+0x34/0x70
>> [354437.151421]  ? __switch_to_asm+0x40/0x70
>> [354437.151422]  ? __switch_to_asm+0x34/0x70
>> [354437.151431]  do_async_commit+0x1d/0x27 [btrfs]
>> [354437.151433]  process_one_work+0x16e/0x24e
>> [354437.151435]  ? rescuer_thread+0x28c/0x28c
>> [354437.151436]  worker_thread+0x1dc/0x2ac
>> [354437.151437]  kthread+0x10b/0x113
>> [354437.151438]  ? kthread_park+0x89/0x89
>> [354437.151439]  ret_from_fork+0x35/0x40
>> [354437.151441] ---[ end trace 85833d33b2b02bd0 ]---
>> [354437.151446] BTRFS: error (device dm-2) in __btrfs_free_extent:4857: errno=-2 No such entry
>> [354437.151447] BTRFS info (device dm-2): forced readonly
>> [354437.151449] BTRFS: error (device dm-2) in btrfs_run_delayed_refs:2795: errno=-2 No such entry


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^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: __btrfs_free_extent error after suspend resume
  2019-11-07  2:30   ` Qu Wenruo
@ 2019-11-08  0:08     ` Leonard Lausen
  0 siblings, 0 replies; 4+ messages in thread
From: Leonard Lausen @ 2019-11-08  0:08 UTC (permalink / raw)
  To: Qu Wenruo, linux-btrfs

Qu Wenruo <quwenruo.btrfs@gmx.com> writes:
>>     btrfs check --readonly /dev/$NAME
>> 
>> runs out of 16GB of memory within 20 seconds and is killed by the
>> kernel.
>
> That's why we have btrfs check --mode=lowmem

Thank you for pointing this out Qu.
btrfs check --mode=lowmem finds

checksum verify failed on 1383731085312 found 000000CC wanted FFFFFFF5
checksum verify failed on 1383731085312 found 000000CC wanted FFFFFFF5
bad tree block 1383731085312, bytenr mismatch, want=1383731085312, have=15281531241332003907
ERROR: shared extent 1776065458176 referencer lost (parent: 1383731085312)
ERROR: errors found in extent allocation tree or chunk allocation

When creating a backup of the home directory after the filesystem was
mounted ro, only a single log file could not be included in the backup
due to failure to read it.

Is there any way to fix the filesystem, given that btrfs check
--mode=lowmem does not support --repair?

Do you think this corruption is related to some kernel bug, triggered
during suspend / resume cycle? Or could it be simply a harddrive (SSD)
failure? (An extended disk self test did not report any errors though.)

Best regards
Leonard

^ permalink raw reply	[flat|nested] 4+ messages in thread

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Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-11-06  0:01 __btrfs_free_extent error after suspend resume Leonard Lausen
2019-11-07  2:05 ` Leonard Lausen
2019-11-07  2:30   ` Qu Wenruo
2019-11-08  0:08     ` Leonard Lausen

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