I made further tests.
This system runs since 2018-02, so maybe it is spoiled from some bugs in
debian stretch (ver 9).
Checking disk took 68 hours:
# time btrfs check --mode=lowmem --progress /dev/sda1
Opening filesystem to check...
Checking filesystem on /dev/sda1
UUID: 666a7089-d716-44ff-8081-56b969b58eff
[1/7] checking root items (0:04:06 elapsed, 10279815 items
checked)
ERROR: extent[1198869807104 16384] backref lost (owner: 2, level: 0) root 2s
checked)
ERROR: extent [1198864121856 16384] referencer bytenr mismatch, wanted:
1198864121856, have: 1198869807104
[2/7] checking extents (16:20:19 elapsed, 6306997 items
checked)
ERROR: errors found in extent allocation tree or chunk allocation
cache and super generation don't match, space cache will be invalidated
[3/7] checking free space cache (0:00:00 elapsed)
[4/7] checking fs roots (51:57:16 elapsed, 4271043 items
checked)
[5/7] checking csums (without verifying data) (0:09:33 elapsed, 898322 items
checked)
[6/7] checking root refs done with fs roots in lowmem mode, skipping
[7/7] checking quota groups skipped (not enabled on this FS)
found 1515733991424 bytes used, error(s) found
total csum bytes: 1407037120
total tree bytes: 74490642432
total fs tree bytes: 71160676352
total extent tree bytes: 1746911232
btree space waste bytes: 15397830986
file data blocks allocated: 5376377978880
referenced 5376377978880
real 4111m27,540s
user 3268m33,968s
sys 24m22,004s
Errors in dmesg while checking:
[11443.813297] BTRFS warning (device sda1): block group 2211400646656 has wrong
amount of free space
[11443.813299] BTRFS warning (device sda1): failed to load free space cache for
block group 2211400646656, rebuilding it now
[17145.954563] perf: interrupt took too long (11171 > 4916), lowering
kernel.perf_event_max_sample_rate to 17750
[17593.634367] INFO: NMI handler (perf_event_nmi_handler) took too long to run:
1.099 msecs
[17750.815402] perf: interrupt took too long (16147 > 13963), lowering
kernel.perf_event_max_sample_rate to 12250
[38731.197299] BTRFS warning (device sda1): block group 1434548436992 has wrong
amount of free space
[38731.197302] BTRFS warning (device sda1): failed to load free space cache for
block group 1434548436992, rebuilding it now
[38731.205956] BTRFS warning (device sda1): block group 1435622178816 has wrong
amount of free space
[38731.205957] BTRFS warning (device sda1): failed to load free space cache for
block group 1435622178816, rebuilding it now
[38731.247236] BTRFS warning (device sda1): block group 1436695920640 has wrong
amount of free space
[38731.247238] BTRFS warning (device sda1): failed to load free space cache for
block group 1436695920640, rebuilding it now
[53198.046259] BTRFS warning (device sda1): block group 1804989366272 has wrong
amount of free space
[53198.046276] BTRFS warning (device sda1): failed to load free space cache for
block group 1804989366272, rebuilding it now
[53607.550637] BTRFS warning (device sda1): block group 1843107201024 has wrong
amount of free space
[53607.550639] BTRFS warning (device sda1): failed to load free space cache for
block group 1843107201024, rebuilding it now
[54399.231065] INFO: NMI handler (perf_event_nmi_handler) took too long to run:
1.224 msecs
[55476.396901] BTRFS warning (device sda1): block group 1921490354176 has wrong
amount of free space
[55476.396904] BTRFS warning (device sda1): failed to load free space cache for
block group 1921490354176, rebuilding it now
[55921.074396] BTRFS warning (device sda1): block group 1947260157952 has wrong
amount of free space
[55921.074400] BTRFS warning (device sda1): failed to load free space cache for
block group 1947260157952, rebuilding it now
Errors while mounting and trying to write to disk:
[555578.836138] BTRFS info (device sda1): trying to use backup root at mount
time
[555578.836141] BTRFS info (device sda1): disabling disk space caching
[555578.836143] BTRFS info (device sda1): force clearing of disk cache
[555578.836144] BTRFS info (device sda1): has skinny extents
[555591.702301] BTRFS info (device sda1): checking UUID tree
[663200.501471] BTRFS info (device sdc1): disk space caching is enabled
[663200.501473] BTRFS info (device sdc1): has skinny extents
[833031.126537] BTRFS info (device sda1): disk space caching is enabled
[833031.126539] BTRFS info (device sda1): has skinny extents
[833044.239191] BTRFS info (device sda1): checking UUID tree
[833267.737626] WARNING: CPU: 1 PID: 27878 at fs/btrfs/extent-tree.c:6795
__btrfs_free_extent+0x6b2/0x940 [btrfs]
[833267.737628] Modules linked in: soundcore dm_mod nouveau kvm_intel mxm_wmi
wmi video kvm ttm drm_kms_helper drm sg evdev serio_raw i2c_algo_bit iTCO_wdt
iTCO_vendor_support pcspkr irqbypass pcc_cpufreq acpi_cpufreq button coretemp
loop ip_tables x_tables autofs4 reiserfs btrfs zstd_decompress zstd_compress
xxhash raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor
async_tx xor raid6_pq libcrc32c crc32c_generic raid1 raid0 multipath linear
md_mod sd_mod ata_generic ahci pata_jmicron ata_piix libahci ehci_pci uhci_hcd
ehci_hcd i2c_i801 libata lpc_ich r8169 realtek libphy scsi_mod usbcore
usb_common
[833267.737674] CPU: 1 PID: 27878 Comm: btrfs-transacti Not tainted
4.19.0-5-686-pae #1 Debian 4.19.37-5+deb10u2
[833267.737675] Hardware name: Gigabyte Technology Co., Ltd. P35T-DQ6/P35T-DQ6,
BIOS F5 02/27/2008
[833267.737692] EIP: __btrfs_free_extent+0x6b2/0x940 [btrfs]
[833267.737694] Code: ff 8b 4d c4 e9 f7 fe ff ff 8d b4 26 00 00 00 00 0f 0b 8d b6 00
00 00 00 8b 47 20 c7 45 8c 01 00 00 00 89 45 9c e9 cf fd ff ff <0f> 0b 8b 07 e8
a5 31 00 00 ff 75 24 ff 75 20 ff 75 1c ff 75 18 ff
[833267.737695] EAX: fffffffe EBX: 00000000 ECX: dcaa5d18 EDX: fffffffe
[833267.737696] ESI: 22358000 EDI: dbaa11e0 EBP: dcaa5e08 ESP: dcaa5d88
[833267.737698] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010246
[833267.737699] CR0: 80050033 CR2: 0058f054 CR3: 24e30000 CR4: 000006f0
[833267.737700] Call Trace:
[833267.737707] ? discard_slab+0x2c/0x40
[833267.737725] __btrfs_run_delayed_refs+0x20d/0x1030 [btrfs]
[833267.737729] ? kmem_cache_free+0x172/0x190
[833267.737743] ? btrfs_free_path.part.28+0x1c/0x20 [btrfs]
[833267.737757] ? btrfs_free_path.part.28+0x1c/0x20 [btrfs]
[833267.737774] btrfs_run_delayed_refs+0x6f/0x150 [btrfs]
[833267.737793] btrfs_commit_transaction+0x270/0x970 [btrfs]
[833267.737812] ? start_transaction+0x81/0x420 [btrfs]
[833267.737816] ? __next_timer_interrupt+0xc0/0xc0
[833267.737834] transaction_kthread+0x175/0x1b0 [btrfs]
[833267.737837] kthread+0xf0/0x110
[833267.737855] ? btrfs_cleanup_transaction+0x4c0/0x4c0 [btrfs]
[833267.737857] ? kthread_associate_blkcg+0xa0/0xa0
[833267.737861] ret_from_fork+0x2e/0x38
[833267.737863] ---[ end trace 2b4d9362179b417f ]---
[833267.737867] BTRFS info (device sda1): leaf 136331264 gen 221611 total ptrs
203 free space 4509 owner 2
[833267.737869] item 0 key (1198866366464 169 0) itemoff 16250 itemsize
33
[833267.737870] extent refs 1 gen 221219 flags 2
[833267.737871] ref#0: tree block backref root 2
[833267.737874] item 1 key (1198866382848 169 0) itemoff 16217 itemsize
33
[833267.737875] extent refs 1 gen 221219 flags 2
[833267.737876] ref#0: tree block backref root 2
[833267.737878] item 2 key (1198866399232 169 0) itemoff 16184 itemsize
33
[833267.737879] extent refs 1 gen 221219 flags 2
[833267.737880] ref#0: tree block backref root 2
[833267.737882] item 3 key (1198866415616 169 0) itemoff 16151 itemsize
33
[833267.737883] extent refs 1 gen 221219 flags 2
[833267.737884] ref#0: tree block backref root 2
[833267.737886] item 4 key (1198866432000 169 0) itemoff 16118 itemsize
33
[833267.737887] extent refs 1 gen 221219 flags 2
[833267.737888] ref#0: tree block backref root 2
[833267.737890] item 5 key (1198866448384 169 0) itemoff 16085 itemsize
33
[833267.737892] extent refs 1 gen 221219 flags 2
[833267.737892] ref#0: tree block backref root 2
[833267.737894] item 6 key (1198866481152 169 0) itemoff 16052 itemsize
33
[833267.737896] extent refs 1 gen 221219 flags 2
[833267.737896] ref#0: tree block backref root 2
[833267.737899] item 7 key (1198866497536 169 0) itemoff 16019 itemsize
33
[833267.737900] extent refs 1 gen 221219 flags 2
[833267.737900] ref#0: tree block backref root 2
[833267.737903] item 8 key (1198866513920 169 0) itemoff 15986 itemsize
33
[833267.737904] extent refs 1 gen 221219 flags 2
[833267.737905] ref#0: tree block backref root 2
[833267.737907] item 9 key (1198866530304 169 0) itemoff 15953 itemsize
33
[833267.737908] extent refs 1 gen 221219 flags 2
[833267.737909] ref#0: tree block backref root 2
[833267.737911] item 10 key (1198866546688 169 0) itemoff 15920
itemsize 33
[833267.737912] extent refs 1 gen 221219 flags 2
[833267.737913] ref#0: tree block backref root 2
[833267.737915] item 11 key (1198866628608 169 0) itemoff 15887
itemsize 33
[833267.737916] extent refs 1 gen 221219 flags 2
[833267.737917] ref#0: tree block backref root 2
[833267.737919] item 12 key (1198866644992 169 0) itemoff 15854
itemsize 33
[833267.737920] extent refs 1 gen 221219 flags 2
[833267.737921] ref#0: tree block backref root 2
[833267.737923] item 13 key (1198866661376 169 0) itemoff 15821
itemsize 33
[833267.737925] extent refs 1 gen 221219 flags 2
[833267.737925] ref#0: tree block backref root 2
[833267.737928] item 14 key (1198866677760 169 0) itemoff 15788
itemsize 33
[833267.737929] extent refs 1 gen 221219 flags 2
[833267.737930] ref#0: tree block backref root 2
[833267.737932] item 15 key (1198866694144 169 0) itemoff 15755
itemsize 33
[833267.737933] extent refs 1 gen 221219 flags 2
[833267.737934] ref#0: tree block backref root 2
[833267.737936] item 16 key (1198866710528 169 0) itemoff 15722
itemsize 33
[833267.737937] extent refs 1 gen 221219 flags 2
[833267.737938] ref#0: tree block backref root 2
[833267.737940] item 17 key (1198866726912 169 0) itemoff 15689
itemsize 33
[833267.737941] extent refs 1 gen 221219 flags 2
[833267.737942] ref#0: tree block backref root 2
[833267.737944] item 18 key (1198866743296 169 0) itemoff 15656
itemsize 33
[833267.737945] extent refs 1 gen 221219 flags 2
[833267.737946] ref#0: tree block backref root 2
[833267.737948] item 19 key (1198866759680 169 0) itemoff 15623
itemsize 33
[833267.737949] extent refs 1 gen 221219 flags 2
[833267.737950] ref#0: tree block backref root 2
[833267.737952] item 20 key (1198866776064 169 0) itemoff 15590
itemsize 33
[833267.737954] extent refs 1 gen 221219 flags 2
[833267.737954] ref#0: tree block backref root 2
[833267.737956] item 21 key (1198866792448 169 0) itemoff 15557
itemsize 33
[833267.737958] extent refs 1 gen 221219 flags 2
[833267.737958] ref#0: tree block backref root 2
[833267.737961] item 22 key (1198866808832 169 0) itemoff 15524
itemsize 33
[833267.737962] extent refs 1 gen 221219 flags 2
[833267.737962] ref#0: tree block backref root 2
[833267.737965] item 23 key (1198866825216 169 0) itemoff 15491
itemsize 33
[833267.737966] extent refs 1 gen 221219 flags 2
[833267.737966] ref#0: tree block backref root 2
[833267.737969] item 24 key (1198866841600 169 0) itemoff 15458
itemsize 33
[833267.737970] extent refs 1 gen 221219 flags 2
[833267.737971] ref#0: tree block backref root 2
[833267.737973] item 25 key (1198866857984 169 0) itemoff 15425
itemsize 33
[833267.737974] extent refs 1 gen 221219 flags 2
[833267.737975] ref#0: tree block backref root 2
[833267.737977] item 26 key (1198866874368 169 0) itemoff 15392
itemsize 33
[833267.737978] extent refs 1 gen 221219 flags 2
[833267.737979] ref#0: tree block backref root 2
[833267.737981] item 27 key (1198866890752 169 0) itemoff 15359
itemsize 33
[833267.737982] extent refs 1 gen 221221 flags 2
[833267.737983] ref#0: tree block backref root 2
[833267.737985] item 28 key (1198866907136 169 0) itemoff 15326
itemsize 33
[833267.737986] extent refs 1 gen 221273 flags 2
[833267.737987] ref#0: tree block backref root 2
[833267.737989] item 29 key (1198866923520 169 0) itemoff 15293
itemsize 33
[833267.737991] extent refs 1 gen 221273 flags 2
[833267.737991] ref#0: tree block backref root 2
[833267.737994] item 30 key (1198866939904 169 0) itemoff 15260
itemsize 33
[833267.737995] extent refs 1 gen 221219 flags 2
[833267.737995] ref#0: tree block backref root 2
[833267.737998] item 31 key (1198866956288 169 0) itemoff 15227
itemsize 33
[833267.737999] extent refs 1 gen 221219 flags 2
[833267.738000] ref#0: tree block backref root 2
[833267.738002] item 32 key (1198866972672 169 0) itemoff 15194
itemsize 33
[833267.738003] extent refs 1 gen 221219 flags 2
[833267.738004] ref#0: tree block backref root 2
[833267.738006] item 33 key (1198866989056 169 0) itemoff 15161
itemsize 33
[833267.738007] extent refs 1 gen 221219 flags 2
[833267.738008] ref#0: tree block backref root 2
[833267.738010] item 34 key (1198867005440 169 0) itemoff 15128
itemsize 33
[833267.738011] extent refs 1 gen 221219 flags 2
[833267.738012] ref#0: tree block backref root 2
[833267.738014] item 35 key (1198867021824 169 0) itemoff 15095
itemsize 33
[833267.738015] extent refs 1 gen 221219 flags 2
[833267.738016] ref#0: tree block backref root 2
[833267.738018] item 36 key (1198867038208 169 0) itemoff 15062
itemsize 33
[833267.738020] extent refs 1 gen 221219 flags 2
[833267.738020] ref#0: tree block backref root 2
[833267.738022] item 37 key (1198867054592 169 0) itemoff 15029
itemsize 33
[833267.738024] extent refs 1 gen 221219 flags 2
[833267.738024] ref#0: tree block backref root 2
[833267.738027] item 38 key (1198867087360 169 0) itemoff 14996
itemsize 33
[833267.738028] extent refs 1 gen 221219 flags 2
[833267.738028] ref#0: tree block backref root 2
[833267.738031] item 39 key (1198867103744 169 0) itemoff 14963
itemsize 33
[833267.738032] extent refs 1 gen 221219 flags 2
[833267.738033] ref#0: tree block backref root 2
[833267.738035] item 40 key (1198867120128 169 0) itemoff 14930
itemsize 33
[833267.738036] extent refs 1 gen 221219 flags 2
[833267.738037] ref#0: tree block backref root 2
[833267.738039] item 41 key (1198867136512 169 0) itemoff 14897
itemsize 33
[833267.738040] extent refs 1 gen 221219 flags 2
[833267.738041] ref#0: tree block backref root 2
[833267.738043] item 42 key (1198867169280 169 0) itemoff 14864
itemsize 33
[833267.738044] extent refs 1 gen 221219 flags 2
[833267.738045] ref#0: tree block backref root 2
[833267.738047] item 43 key (1198867185664 169 0) itemoff 14831
itemsize 33
[833267.738048] extent refs 1 gen 221219 flags 2
[833267.738049] ref#0: tree block backref root 2
[833267.738051] item 44 key (1198867202048 169 0) itemoff 14798
itemsize 33
[833267.738052] extent refs 1 gen 221219 flags 2
[833267.738053] ref#0: tree block backref root 2
[833267.738055] item 45 key (1198867218432 169 0) itemoff 14765
itemsize 33
[833267.738057] extent refs 1 gen 221219 flags 2
[833267.738057] ref#0: tree block backref root 2
[833267.738059] item 46 key (1198867234816 169 0) itemoff 14732
itemsize 33
[833267.738061] extent refs 1 gen 9305 flags 258
[833267.738061] ref#0: shared block backref parent 1182567350272
[833267.738064] item 47 key (1198867251200 169 0) itemoff 14699
itemsize 33
[833267.738065] extent refs 1 gen 9305 flags 258
[833267.738066] ref#0: shared block backref parent 1182567350272
[833267.738068] item 48 key (1198867267584 169 0) itemoff 14666
itemsize 33
[833267.738070] extent refs 1 gen 221221 flags 2
[833267.738070] ref#0: tree block backref root 2
[833267.738073] item 49 key (1198867283968 169 0) itemoff 14633
itemsize 33
[833267.738074] extent refs 1 gen 9305 flags 258
[833267.738075] ref#0: shared block backref parent 1182567350272
[833267.738077] item 50 key (1198867300352 169 0) itemoff 14600
itemsize 33
[833267.738078] extent refs 1 gen 221219 flags 2
[833267.738079] ref#0: tree block backref root 2
[833267.738081] item 51 key (1198867316736 169 0) itemoff 14567
itemsize 33
[833267.738082] extent refs 1 gen 221289 flags 2
[833267.738083] ref#0: tree block backref root 2
[833267.738085] item 52 key (1198867333120 169 0) itemoff 14534
itemsize 33
[833267.738087] extent refs 1 gen 9305 flags 258
[833267.738087] ref#0: shared block backref parent 1182567350272
[833267.738090] item 53 key (1198867349504 169 0) itemoff 14501
itemsize 33
[833267.738091] extent refs 1 gen 9305 flags 258
[833267.738092] ref#0: shared block backref parent 1182567350272
[833267.738094] item 54 key (1198867365888 169 0) itemoff 14468
itemsize 33
[833267.738095] extent refs 1 gen 9305 flags 258
[833267.738096] ref#0: shared block backref parent 1182567350272
[833267.738098] item 55 key (1198867382272 169 0) itemoff 14435
itemsize 33
[833267.738099] extent refs 1 gen 221219 flags 2
[833267.738100] ref#0: tree block backref root 2
[833267.738102] item 56 key (1198867398656 169 0) itemoff 14402
itemsize 33
[833267.738104] extent refs 1 gen 221219 flags 2
[833267.738104] ref#0: tree block backref root 2
[833267.738107] item 57 key (1198867415040 169 0) itemoff 14369
itemsize 33
[833267.738108] extent refs 1 gen 221219 flags 2
[833267.738108] ref#0: tree block backref root 2
[833267.738111] item 58 key (1198867431424 169 0) itemoff 14336
itemsize 33
[833267.738112] extent refs 1 gen 221219 flags 2
[833267.738113] ref#0: tree block backref root 2
[833267.738115] item 59 key (1198867447808 169 0) itemoff 14303
itemsize 33
[833267.738116] extent refs 1 gen 221219 flags 2
[833267.738117] ref#0: tree block backref root 2
[833267.738119] item 60 key (1198867464192 169 0) itemoff 14270
itemsize 33
[833267.738120] extent refs 1 gen 221219 flags 2
[833267.738121] ref#0: tree block backref root 2
[833267.738123] item 61 key (1198867480576 169 0) itemoff 14237
itemsize 33
[833267.738124] extent refs 1 gen 9305 flags 258
[833267.738125] ref#0: shared block backref parent 1182567350272
[833267.738127] item 62 key (1198867496960 169 0) itemoff 14204
itemsize 33
[833267.738129] extent refs 1 gen 221219 flags 2
[833267.738129] ref#0: tree block backref root 2
[833267.738132] item 63 key (1198867513344 169 0) itemoff 14171
itemsize 33
[833267.738133] extent refs 1 gen 221219 flags 2
[833267.738134] ref#0: tree block backref root 2
[833267.738136] item 64 key (1198867529728 169 0) itemoff 14138
itemsize 33
[833267.738137] extent refs 1 gen 221219 flags 2
[833267.738138] ref#0: tree block backref root 2
[833267.738140] item 65 key (1198867546112 169 0) itemoff 14105
itemsize 33
[833267.738141] extent refs 1 gen 221219 flags 2
[833267.738142] ref#0: tree block backref root 2
[833267.738144] item 66 key (1198867562496 169 0) itemoff 14072
itemsize 33
[833267.738145] extent refs 1 gen 221219 flags 2
[833267.738146] ref#0: tree block backref root 2
[833267.738148] item 67 key (1198867578880 169 0) itemoff 14039
itemsize 33
[833267.738149] extent refs 1 gen 221219 flags 2
[833267.738150] ref#0: tree block backref root 2
[833267.738152] item 68 key (1198867595264 169 0) itemoff 14006
itemsize 33
[833267.738153] extent refs 1 gen 221219 flags 2
[833267.738154] ref#0: tree block backref root 2
[833267.738156] item 69 key (1198867611648 169 0) itemoff 13973
itemsize 33
[833267.738157] extent refs 1 gen 221219 flags 2
[833267.738158] ref#0: tree block backref root 2
[833267.738160] item 70 key (1198867628032 169 0) itemoff 13940
itemsize 33
[833267.738161] extent refs 1 gen 221219 flags 2
[833267.738162] ref#0: tree block backref root 2
[833267.738164] item 71 key (1198867644416 169 0) itemoff 13907
itemsize 33
[833267.738166] extent refs 1 gen 221219 flags 2
[833267.738166] ref#0: tree block backref root 2
[833267.738168] item 72 key (1198867660800 169 0) itemoff 13874
itemsize 33
[833267.738170] extent refs 1 gen 221219 flags 2
[833267.738170] ref#0: tree block backref root 2
[833267.738173] item 73 key (1198867677184 169 0) itemoff 13841
itemsize 33
[833267.738174] extent refs 1 gen 221219 flags 2
[833267.738174] ref#0: tree block backref root 2
[833267.738177] item 74 key (1198867693568 169 0) itemoff 13808
itemsize 33
[833267.738178] extent refs 1 gen 9222 flags 258
[833267.738179] ref#0: tree block backref root 2535
[833267.738181] item 75 key (1198867709952 169 0) itemoff 13775
itemsize 33
[833267.738182] extent refs 1 gen 221219 flags 2
[833267.738183] ref#0: tree block backref root 2
[833267.738185] item 76 key (1198867759104 169 0) itemoff 13742
itemsize 33
[833267.738186] extent refs 1 gen 221219 flags 2
[833267.738187] ref#0: tree block backref root 2
[833267.738189] item 77 key (1198867775488 169 0) itemoff 13709
itemsize 33
[833267.738190] extent refs 1 gen 221219 flags 2
[833267.738191] ref#0: tree block backref root 2
[833267.738193] item 78 key (1198867791872 169 0) itemoff 13676
itemsize 33
[833267.738195] extent refs 1 gen 221221 flags 2
[833267.738195] ref#0: tree block backref root 2
[833267.738197] item 79 key (1198867808256 169 0) itemoff 13643
itemsize 33
[833267.738199] extent refs 1 gen 221219 flags 2
[833267.738199] ref#0: tree block backref root 2
[833267.738202] item 80 key (1198867824640 169 0) itemoff 13610
itemsize 33
[833267.738203] extent refs 1 gen 221219 flags 2
[833267.738203] ref#0: tree block backref root 2
[833267.738206] item 81 key (1198867841024 169 0) itemoff 13577
itemsize 33
[833267.738207] extent refs 1 gen 221219 flags 2
[833267.738207] ref#0: tree block backref root 2
[833267.738210] item 82 key (1198867857408 169 0) itemoff 13544
itemsize 33
[833267.738211] extent refs 1 gen 221219 flags 2
[833267.738212] ref#0: tree block backref root 2
[833267.738214] item 83 key (1198867873792 169 0) itemoff 13511
itemsize 33
[833267.738215] extent refs 1 gen 221219 flags 2
[833267.738216] ref#0: tree block backref root 2
[833267.738218] item 84 key (1198867890176 169 0) itemoff 13478
itemsize 33
[833267.738219] extent refs 1 gen 221219 flags 2
[833267.738220] ref#0: tree block backref root 2
[833267.738222] item 85 key (1198867906560 169 0) itemoff 13445
itemsize 33
[833267.738223] extent refs 1 gen 221219 flags 2
[833267.738224] ref#0: tree block backref root 2
[833267.738226] item 86 key (1198867922944 169 0) itemoff 13412
itemsize 33
[833267.738227] extent refs 1 gen 221219 flags 2
[833267.738228] ref#0: tree block backref root 2
[833267.738230] item 87 key (1198867939328 169 0) itemoff 13379
itemsize 33
[833267.738231] extent refs 1 gen 221219 flags 2
[833267.738232] ref#0: tree block backref root 2
[833267.738234] item 88 key (1198867955712 169 0) itemoff 13346
itemsize 33
[833267.738236] extent refs 1 gen 221219 flags 2
[833267.738236] ref#0: tree block backref root 2
[833267.738238] item 89 key (1198867972096 169 0) itemoff 13313
itemsize 33
[833267.738240] extent refs 1 gen 221219 flags 2
[833267.738240] ref#0: tree block backref root 2
[833267.738243] item 90 key (1198867988480 169 0) itemoff 13280
itemsize 33
[833267.738244] extent refs 1 gen 221219 flags 2
[833267.738244] ref#0: tree block backref root 2
[833267.738247] item 91 key (1198868004864 169 0) itemoff 13247
itemsize 33
[833267.738248] extent refs 1 gen 221219 flags 2
[833267.738249] ref#0: tree block backref root 2
[833267.738251] item 92 key (1198868021248 169 0) itemoff 13214
itemsize 33
[833267.738252] extent refs 1 gen 221219 flags 2
[833267.738253] ref#0: tree block backref root 2
[833267.738255] item 93 key (1198868037632 169 0) itemoff 13181
itemsize 33
[833267.738256] extent refs 1 gen 221219 flags 2
[833267.738257] ref#0: tree block backref root 2
[833267.738259] item 94 key (1198868054016 169 0) itemoff 13148
itemsize 33
[833267.738260] extent refs 1 gen 221219 flags 2
[833267.738261] ref#0: tree block backref root 2
[833267.738263] item 95 key (1198868086784 169 0) itemoff 13115
itemsize 33
[833267.738264] extent refs 1 gen 221219 flags 2
[833267.738265] ref#0: tree block backref root 2
[833267.738267] item 96 key (1198868119552 169 0) itemoff 13082
itemsize 33
[833267.738268] extent refs 1 gen 221219 flags 2
[833267.738269] ref#0: tree block backref root 2
[833267.738271] item 97 key (1198868135936 169 0) itemoff 13049
itemsize 33
[833267.738272] extent refs 1 gen 9305 flags 258
[833267.738273] ref#0: shared block backref parent 1201690198016
[833267.738276] item 98 key (1198868152320 169 0) itemoff 13016
itemsize 33
[833267.738277] extent refs 1 gen 221219 flags 2
[833267.738278] ref#0: tree block backref root 2
[833267.738280] item 99 key (1198868168704 169 0) itemoff 12983
itemsize 33
[833267.738281] extent refs 1 gen 221219 flags 2
[833267.738282] ref#0: tree block backref root 2
[833267.738284] item 100 key (1198868185088 169 0) itemoff 12950
itemsize 33
[833267.738285] extent refs 1 gen 221219 flags 2
[833267.738286] ref#0: tree block backref root 2
[833267.738288] item 101 key (1198868201472 169 0) itemoff 12917
itemsize 33
[833267.738289] extent refs 1 gen 221219 flags 2
[833267.738290] ref#0: tree block backref root 2
[833267.738292] item 102 key (1198868217856 169 0) itemoff 12884
itemsize 33
[833267.738293] extent refs 1 gen 221219 flags 2
[833267.738294] ref#0: tree block backref root 2
[833267.738296] item 103 key (1198868234240 169 0) itemoff 12851
itemsize 33
[833267.738298] extent refs 1 gen 9305 flags 258
[833267.738298] ref#0: shared block backref parent 1182567350272
[833267.738301] item 104 key (1198868250624 169 0) itemoff 12818
itemsize 33
[833267.738302] extent refs 1 gen 221219 flags 2
[833267.738303] ref#0: tree block backref root 2
[833267.738305] item 105 key (1198868267008 169 0) itemoff 12785
itemsize 33
[833267.738306] extent refs 1 gen 221219 flags 2
[833267.738307] ref#0: tree block backref root 2
[833267.738309] item 106 key (1198868283392 169 0) itemoff 12752
itemsize 33
[833267.738310] extent refs 1 gen 221219 flags 2
[833267.738311] ref#0: tree block backref root 2
[833267.738313] item 107 key (1198868299776 169 0) itemoff 12719
itemsize 33
[833267.738314] extent refs 1 gen 221219 flags 2
[833267.738315] ref#0: tree block backref root 2
[833267.738317] item 108 key (1198868316160 169 0) itemoff 12686
itemsize 33
[833267.738318] extent refs 1 gen 221219 flags 2
[833267.738319] ref#0: tree block backref root 2
[833267.738321] item 109 key (1198868332544 169 0) itemoff 12653
itemsize 33
[833267.738322] extent refs 1 gen 221219 flags 2
[833267.738323] ref#0: tree block backref root 2
[833267.738325] item 110 key (1198868348928 169 0) itemoff 12620
itemsize 33
[833267.738327] extent refs 1 gen 221219 flags 2
[833267.738327] ref#0: tree block backref root 2
[833267.738330] item 111 key (1198868365312 169 0) itemoff 12587
itemsize 33
[833267.738331] extent refs 1 gen 221219 flags 2
[833267.738331] ref#0: tree block backref root 2
[833267.738334] item 112 key (1198868381696 169 0) itemoff 12554
itemsize 33
[833267.738335] extent refs 1 gen 221219 flags 2
[833267.738335] ref#0: tree block backref root 2
[833267.738338] item 113 key (1198868398080 169 0) itemoff 12521
itemsize 33
[833267.738339] extent refs 1 gen 221219 flags 2
[833267.738340] ref#0: tree block backref root 2
[833267.738342] item 114 key (1198868414464 169 0) itemoff 12488
itemsize 33
[833267.738343] extent refs 1 gen 221219 flags 2
[833267.738344] ref#0: tree block backref root 2
[833267.738346] item 115 key (1198868430848 169 0) itemoff 12455
itemsize 33
[833267.738347] extent refs 1 gen 9305 flags 258
[833267.738348] ref#0: shared block backref parent 1182567350272
[833267.738350] item 116 key (1198868447232 169 0) itemoff 12422
itemsize 33
[833267.738352] extent refs 1 gen 221219 flags 2
[833267.738352] ref#0: tree block backref root 2
[833267.738355] item 117 key (1198868463616 169 0) itemoff 12389
itemsize 33
[833267.738356] extent refs 1 gen 221219 flags 2
[833267.738356] ref#0: tree block backref root 2
[833267.738359] item 118 key (1198868480000 169 0) itemoff 12356
itemsize 33
[833267.738360] extent refs 1 gen 221221 flags 2
[833267.738361] ref#0: tree block backref root 2
[833267.738363] item 119 key (1198868512768 169 0) itemoff 12323
itemsize 33
[833267.738364] extent refs 1 gen 221219 flags 2
[833267.738365] ref#0: tree block backref root 2
[833267.738367] item 120 key (1198868529152 169 0) itemoff 12290
itemsize 33
[833267.738368] extent refs 1 gen 221219 flags 2
[833267.738369] ref#0: tree block backref root 2
[833267.738371] item 121 key (1198868545536 169 0) itemoff 12257
itemsize 33
[833267.738372] extent refs 1 gen 221219 flags 2
[833267.738373] ref#0: tree block backref root 2
[833267.738375] item 122 key (1198868561920 169 0) itemoff 12224
itemsize 33
[833267.738376] extent refs 1 gen 9305 flags 258
[833267.738377] ref#0: shared block backref parent 1182567350272
[833267.738380] item 123 key (1198868578304 169 0) itemoff 12191
itemsize 33
[833267.738381] extent refs 1 gen 221219 flags 2
[833267.738381] ref#0: tree block backref root 2
[833267.738384] item 124 key (1198868594688 169 0) itemoff 12158
itemsize 33
[833267.738385] extent refs 1 gen 221219 flags 2
[833267.738386] ref#0: tree block backref root 2
[833267.738388] item 125 key (1198868611072 169 0) itemoff 12125
itemsize 33
[833267.738389] extent refs 1 gen 221219 flags 2
[833267.738390] ref#0: tree block backref root 2
[833267.738392] item 126 key (1198868627456 169 0) itemoff 12092
itemsize 33
[833267.738393] extent refs 1 gen 221287 flags 2
[833267.738394] ref#0: tree block backref root 2
[833267.738396] item 127 key (1198868643840 169 0) itemoff 12059
itemsize 33
[833267.738397] extent refs 1 gen 221219 flags 2
[833267.738398] ref#0: tree block backref root 2
[833267.738400] item 128 key (1198868660224 169 0) itemoff 12026
itemsize 33
[833267.738401] extent refs 1 gen 221279 flags 2
[833267.738402] ref#0: tree block backref root 2
[833267.738404] item 129 key (1198868692992 169 0) itemoff 11993
itemsize 33
[833267.738406] extent refs 1 gen 221221 flags 2
[833267.738406] ref#0: tree block backref root 2
[833267.738409] item 130 key (1198868758528 169 0) itemoff 11960
itemsize 33
[833267.738410] extent refs 1 gen 221219 flags 2
[833267.738410] ref#0: tree block backref root 2
[833267.738413] item 131 key (1198868774912 169 0) itemoff 11927
itemsize 33
[833267.738414] extent refs 1 gen 221219 flags 2
[833267.738415] ref#0: tree block backref root 2
[833267.738417] item 132 key (1198868791296 169 0) itemoff 11894
itemsize 33
[833267.738418] extent refs 1 gen 221219 flags 2
[833267.738419] ref#0: tree block backref root 2
[833267.738421] item 133 key (1198868824064 169 0) itemoff 11861
itemsize 33
[833267.738422] extent refs 1 gen 221219 flags 2
[833267.738423] ref#0: tree block backref root 2
[833267.738425] item 134 key (1198868840448 169 0) itemoff 11828
itemsize 33
[833267.738426] extent refs 1 gen 221219 flags 2
[833267.738427] ref#0: tree block backref root 2
[833267.738429] item 135 key (1198868856832 169 0) itemoff 11795
itemsize 33
[833267.738430] extent refs 1 gen 221288 flags 2
[833267.738431] ref#0: tree block backref root 2
[833267.738433] item 136 key (1198868873216 169 0) itemoff 11762
itemsize 33
[833267.738434] extent refs 1 gen 221221 flags 2
[833267.738435] ref#0: tree block backref root 2
[833267.738437] item 137 key (1198868905984 169 0) itemoff 11729
itemsize 33
[833267.738439] extent refs 1 gen 9305 flags 258
[833267.738439] ref#0: shared block backref parent 1182567350272
[833267.738442] item 138 key (1198868955136 169 0) itemoff 11696
itemsize 33
[833267.738443] extent refs 1 gen 221288 flags 2
[833267.738444] ref#0: tree block backref root 2
[833267.738446] item 139 key (1198868971520 169 0) itemoff 11663
itemsize 33
[833267.738447] extent refs 1 gen 221221 flags 2
[833267.738448] ref#0: tree block backref root 2
[833267.738450] item 140 key (1198869037056 169 0) itemoff 11630
itemsize 33
[833267.738451] extent refs 1 gen 4894 flags 258
[833267.738452] ref#0: shared block backref parent 1197685424128
[833267.738454] item 141 key (1198869053440 169 0) itemoff 11597
itemsize 33
[833267.738456] extent refs 1 gen 4894 flags 258
[833267.738456] ref#0: shared block backref parent 1201960845312
[833267.738459] item 142 key (1198869069824 169 0) itemoff 11564
itemsize 33
[833267.738460] extent refs 1 gen 221221 flags 2
[833267.738461] ref#0: tree block backref root 2
[833267.738463] item 143 key (1198869102592 169 0) itemoff 11531
itemsize 33
[833267.738464] extent refs 1 gen 221221 flags 2
[833267.738465] ref#0: tree block backref root 2
[833267.738467] item 144 key (1198869135360 169 0) itemoff 11498
itemsize 33
[833267.738468] extent refs 1 gen 221219 flags 2
[833267.738469] ref#0: tree block backref root 2
[833267.738471] item 145 key (1198869151744 169 0) itemoff 11465
itemsize 33
[833267.738472] extent refs 1 gen 221219 flags 2
[833267.738473] ref#0: tree block backref root 2
[833267.738475] item 146 key (1198869184512 169 0) itemoff 11432
itemsize 33
[833267.738476] extent refs 1 gen 221219 flags 2
[833267.738477] ref#0: tree block backref root 2
[833267.738479] item 147 key (1198869217280 169 0) itemoff 11399
itemsize 33
[833267.738481] extent refs 1 gen 221221 flags 2
[833267.738481] ref#0: tree block backref root 2
[833267.738484] item 148 key (1198869233664 169 0) itemoff 11366
itemsize 33
[833267.738485] extent refs 1 gen 4894 flags 258
[833267.738485] ref#0: shared block backref parent 1198871592960
[833267.738488] item 149 key (1198869250048 169 0) itemoff 11333
itemsize 33
[833267.738489] extent refs 1 gen 221221 flags 2
[833267.738490] ref#0: tree block backref root 2
[833267.738492] item 150 key (1198869299200 169 0) itemoff 11300
itemsize 33
[833267.738493] extent refs 1 gen 221219 flags 2
[833267.738494] ref#0: tree block backref root 2
[833267.738496] item 151 key (1198869315584 169 0) itemoff 11267
itemsize 33
[833267.738497] extent refs 1 gen 221288 flags 2
[833267.738498] ref#0: tree block backref root 2
[833267.738500] item 152 key (1198869331968 169 0) itemoff 11234
itemsize 33
[833267.738502] extent refs 1 gen 221221 flags 2
[833267.738502] ref#0: tree block backref root 2
[833267.738504] item 153 key (1198869348352 169 0) itemoff 11201
itemsize 33
[833267.738506] extent refs 1 gen 221219 flags 2
[833267.738506] ref#0: tree block backref root 2
[833267.738509] item 154 key (1198869381120 169 0) itemoff 11168
itemsize 33
[833267.738510] extent refs 1 gen 4894 flags 258
[833267.738510] ref#0: shared block backref parent 1197685424128
[833267.738513] item 155 key (1198869413888 169 0) itemoff 11135
itemsize 33
[833267.738514] extent refs 1 gen 221289 flags 2
[833267.738515] ref#0: tree block backref root 2
[833267.738517] item 156 key (1198869430272 169 0) itemoff 11102
itemsize 33
[833267.738518] extent refs 1 gen 221219 flags 2
[833267.738519] ref#0: tree block backref root 2
[833267.738521] item 157 key (1198869446656 169 0) itemoff 11069
itemsize 33
[833267.738522] extent refs 1 gen 221219 flags 2
[833267.738523] ref#0: tree block backref root 2
[833267.738525] item 158 key (1198869463040 169 0) itemoff 11036
itemsize 33
[833267.738526] extent refs 1 gen 221219 flags 2
[833267.738527] ref#0: tree block backref root 2
[833267.738529] item 159 key (1198869544960 169 0) itemoff 11003
itemsize 33
[833267.738531] extent refs 1 gen 221219 flags 2
[833267.738531] ref#0: tree block backref root 2
[833267.738534] item 160 key (1198869577728 169 0) itemoff 10970
itemsize 33
[833267.738535] extent refs 1 gen 221219 flags 2
[833267.738535] ref#0: tree block backref root 2
[833267.738538] item 161 key (1198869594112 169 0) itemoff 10937
itemsize 33
[833267.738539] extent refs 1 gen 221221 flags 2
[833267.738540] ref#0: tree block backref root 2
[833267.738542] item 162 key (1198869610496 169 0) itemoff 10904
itemsize 33
[833267.738543] extent refs 1 gen 221221 flags 2
[833267.738544] ref#0: tree block backref root 2
[833267.738546] item 163 key (1198869626880 169 0) itemoff 10871
itemsize 33
[833267.738547] extent refs 1 gen 221221 flags 2
[833267.738548] ref#0: tree block backref root 2
[833267.738550] item 164 key (1198869643264 169 0) itemoff 10838
itemsize 33
[833267.738551] extent refs 1 gen 221221 flags 2
[833267.738552] ref#0: tree block backref root 2
[833267.738554] item 165 key (1198869659648 169 0) itemoff 10805
itemsize 33
[833267.738555] extent refs 1 gen 221221 flags 2
[833267.738556] ref#0: tree block backref root 2
[833267.738558] item 166 key (1198869741568 169 0) itemoff 10772
itemsize 33
[833267.738559] extent refs 1 gen 221289 flags 2
[833267.738560] ref#0: tree block backref root 2
[833267.738562] item 167 key (1198869790720 169 0) itemoff 10739
itemsize 33
[833267.738563] extent refs 1 gen 221219 flags 2
[833267.738564] ref#0: tree block backref root 2
[833267.738566] item 168 key (1198869823488 169 0) itemoff 10706
itemsize 33
[833267.738567] extent refs 1 gen 221219 flags 2
[833267.738568] ref#0: tree block backref root 2
[833267.738570] item 169 key (1198869839872 169 0) itemoff 10673
itemsize 33
[833267.738572] extent refs 1 gen 221221 flags 2
[833267.738572] ref#0: tree block backref root 2
[833267.738574] item 170 key (1198869856256 169 0) itemoff 10640
itemsize 33
[833267.738576] extent refs 1 gen 221221 flags 2
[833267.738576] ref#0: tree block backref root 2
[833267.738579] item 171 key (1198869889024 169 0) itemoff 10607
itemsize 33
[833267.738580] extent refs 1 gen 221221 flags 2
[833267.738580] ref#0: tree block backref root 2
[833267.738583] item 172 key (1198869905408 169 0) itemoff 10574
itemsize 33
[833267.738584] extent refs 1 gen 221221 flags 2
[833267.738584] ref#0: tree block backref root 2
[833267.738587] item 173 key (1198869921792 169 0) itemoff 10541
itemsize 33
[833267.738588] extent refs 1 gen 221221 flags 2
[833267.738588] ref#0: tree block backref root 2
[833267.738591] item 174 key (1198869938176 169 0) itemoff 10508
itemsize 33
[833267.738592] extent refs 1 gen 221219 flags 2
[833267.738593] ref#0: tree block backref root 2
[833267.738595] item 175 key (1198869970944 169 0) itemoff 10475
itemsize 33
[833267.738596] extent refs 1 gen 221221 flags 2
[833267.738597] ref#0: tree block backref root 2
[833267.738599] item 176 key (1198870003712 169 0) itemoff 10442
itemsize 33
[833267.738600] extent refs 1 gen 221221 flags 2
[833267.738601] ref#0: tree block backref root 2
[833267.738603] item 177 key (1198870036480 169 0) itemoff 10409
itemsize 33
[833267.738604] extent refs 1 gen 221219 flags 2
[833267.738605] ref#0: tree block backref root 2
[833267.738607] item 178 key (1198870052864 169 0) itemoff 10376
itemsize 33
[833267.738608] extent refs 1 gen 221221 flags 2
[833267.738609] ref#0: tree block backref root 2
[833267.738611] item 179 key (1198870069248 169 0) itemoff 10343
itemsize 33
[833267.738612] extent refs 1 gen 221219 flags 2
[833267.738613] ref#0: tree block backref root 2
[833267.738615] item 180 key (1198870085632 169 0) itemoff 10310
itemsize 33
[833267.738616] extent refs 1 gen 221221 flags 2
[833267.738617] ref#0: tree block backref root 2
[833267.738619] item 181 key (1198870151168 169 0) itemoff 10277
itemsize 33
[833267.738620] extent refs 1 gen 221219 flags 2
[833267.738621] ref#0: tree block backref root 2
[833267.738623] item 182 key (1198870413312 169 0) itemoff 10244
itemsize 33
[833267.738625] extent refs 1 gen 221219 flags 2
[833267.738625] ref#0: tree block backref root 2
[833267.738627] item 183 key (1198870429696 169 0) itemoff 10211
itemsize 33
[833267.738629] extent refs 1 gen 221219 flags 2
[833267.738629] ref#0: tree block backref root 2
[833267.738631] item 184 key (1198870446080 169 0) itemoff 10178
itemsize 33
[833267.738633] extent refs 1 gen 221219 flags 2
[833267.738633] ref#0: tree block backref root 2
[833267.738636] item 185 key (1198870462464 169 0) itemoff 10145
itemsize 33
[833267.738637] extent refs 1 gen 221219 flags 2
[833267.738637] ref#0: tree block backref root 2
[833267.738640] item 186 key (1198870478848 169 0) itemoff 10112
itemsize 33
[833267.738641] extent refs 1 gen 221219 flags 2
[833267.738641] ref#0: tree block backref root 2
[833267.738644] item 187 key (1198870495232 169 0) itemoff 10079
itemsize 33
[833267.738645] extent refs 1 gen 221219 flags 2
[833267.738646] ref#0: tree block backref root 2
[833267.738648] item 188 key (1198870544384 169 0) itemoff 10046
itemsize 33
[833267.738649] extent refs 1 gen 221219 flags 2
[833267.738650] ref#0: tree block backref root 2
[833267.738652] item 189 key (1198870626304 169 0) itemoff 10013
itemsize 33
[833267.738653] extent refs 1 gen 221221 flags 2
[833267.738654] ref#0: tree block backref root 2
[833267.738656] item 190 key (1198870642688 169 0) itemoff 9980
itemsize 33
[833267.738657] extent refs 1 gen 221221 flags 2
[833267.738658] ref#0: tree block backref root 2
[833267.738660] item 191 key (1198870659072 169 0) itemoff 9947
itemsize 33
[833267.738661] extent refs 1 gen 221219 flags 2
[833267.738662] ref#0: tree block backref root 2
[833267.738664] item 192 key (1198870691840 169 0) itemoff 9914
itemsize 33
[833267.738665] extent refs 1 gen 221219 flags 2
[833267.738666] ref#0: tree block backref root 2
[833267.738668] item 193 key (1198870839296 169 0) itemoff 9881
itemsize 33
[833267.738669] extent refs 1 gen 221221 flags 2
[833267.738670] ref#0: tree block backref root 2
[833267.738672] item 194 key (1198870855680 169 0) itemoff 9848
itemsize 33
[833267.738673] extent refs 1 gen 221221 flags 2
[833267.738674] ref#0: tree block backref root 2
[833267.738676] item 195 key (1198870872064 169 0) itemoff 9815
itemsize 33
[833267.738677] extent refs 1 gen 221221 flags 2
[833267.738678] ref#0: tree block backref root 2
[833267.738680] item 196 key (1198870904832 169 0) itemoff 9782
itemsize 33
[833267.738681] extent refs 1 gen 221219 flags 2
[833267.738682] ref#0: tree block backref root 2
[833267.738684] item 197 key (1198870937600 169 0) itemoff 9749
itemsize 33
[833267.738685] extent refs 1 gen 221219 flags 2
[833267.738686] ref#0: tree block backref root 2
[833267.738688] item 198 key (1198870953984 169 0) itemoff 9716
itemsize 33
[833267.738689] extent refs 1 gen 221221 flags 2
[833267.738690] ref#0: tree block backref root 2
[833267.738692] item 199 key (1198870970368 169 0) itemoff 9683
itemsize 33
[833267.738693] extent refs 1 gen 221219 flags 2
[833267.738694] ref#0: tree block backref root 2
[833267.738696] item 200 key (1198870986752 169 0) itemoff 9650
itemsize 33
[833267.738698] extent refs 1 gen 221221 flags 2
[833267.738698] ref#0: tree block backref root 2
[833267.738700] item 201 key (1198871019520 169 0) itemoff 9617
itemsize 33
[833267.738702] extent refs 1 gen 4894 flags 258
[833267.738702] ref#0: shared block backref parent 1198871592960
[833267.738705] item 202 key (1198871035904 169 0) itemoff 9584
itemsize 33
[833267.738706] extent refs 1 gen 221219 flags 2
[833267.738707] ref#0: tree block backref root 2
[833267.738709] BTRFS error (device sda1): unable to find ref byte nr
1198869807104 parent 0 root 2 owner 0 offset 0
[833267.738753] ------------[ cut here ]------------
[833267.738754] BTRFS: Transaction aborted (error -2)
[833267.738780] WARNING: CPU: 1 PID: 27878 at fs/btrfs/extent-tree.c:6801
__btrfs_free_extent+0x70f/0x940 [btrfs]
[833267.738781] Modules linked in: soundcore dm_mod nouveau kvm_intel mxm_wmi
wmi video kvm ttm drm_kms_helper drm sg evdev serio_raw i2c_algo_bit iTCO_wdt
iTCO_vendor_support pcspkr irqbypass pcc_cpufreq acpi_cpufreq button coretemp
loop ip_tables x_tables autofs4 reiserfs btrfs zstd_decompress zstd_compress
xxhash raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor
async_tx xor raid6_pq libcrc32c crc32c_generic raid1 raid0 multipath linear
md_mod sd_mod ata_generic ahci pata_jmicron ata_piix libahci ehci_pci uhci_hcd
ehci_hcd i2c_i801 libata lpc_ich r8169 realtek libphy scsi_mod usbcore
usb_common
[833267.738819] CPU: 1 PID: 27878 Comm: btrfs-transacti Tainted: G W
4.19.0-5-686-pae #1 Debian 4.19.37-5+deb10u2
[833267.738820] Hardware name: Gigabyte Technology Co., Ltd. P35T-DQ6/P35T-DQ6,
BIOS F5 02/27/2008
[833267.738837] EIP: __btrfs_free_extent+0x70f/0x940 [btrfs]
[833267.738839] Code: 00 8b 45 a4 8b 40 3c f0 0f ba a8 54 07 00 00 02 0f 92 c0 83 c4
30 84 c0 0f 85 19 d7 09 00 6a fe 68 e8 2f fd f7 e8 35 a9 14 d4 <0f> 0b 5b 5e e9
04 d7 09 00 83 e8 01 8d 55 df 89 47 20 8d 04 80 6a
[833267.738840] EAX: 00000025 EBX: 00000000 ECX: f6fb056c EDX: 00000007
[833267.738841] ESI: 22358000 EDI: dbaa11e0 EBP: dcaa5e08 ESP: dcaa5d80
[833267.738843] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010296
[833267.738844] CR0: 80050033 CR2: 0058f054 CR3: 24e30000 CR4: 000006f0
[833267.738845] Call Trace:
[833267.738848] ? discard_slab+0x2c/0x40
[833267.738866] __btrfs_run_delayed_refs+0x20d/0x1030 [btrfs]
[833267.738869] ? kmem_cache_free+0x172/0x190
[833267.738883] ? btrfs_free_path.part.28+0x1c/0x20 [btrfs]
[833267.738897] ? btrfs_free_path.part.28+0x1c/0x20 [btrfs]
[833267.738914] btrfs_run_delayed_refs+0x6f/0x150 [btrfs]
[833267.738933] btrfs_commit_transaction+0x270/0x970 [btrfs]
[833267.738952] ? start_transaction+0x81/0x420 [btrfs]
[833267.738955] ? __next_timer_interrupt+0xc0/0xc0
[833267.738973] transaction_kthread+0x175/0x1b0 [btrfs]
[833267.738976] kthread+0xf0/0x110
[833267.738994] ? btrfs_cleanup_transaction+0x4c0/0x4c0 [btrfs]
[833267.738995] ? kthread_associate_blkcg+0xa0/0xa0
[833267.738998] ret_from_fork+0x2e/0x38
[833267.739000] ---[ end trace 2b4d9362179b4180 ]---
[833267.739019] BTRFS: error (device sda1) in __btrfs_free_extent:6801:
errno=-2 No such entry
[833267.739063] BTRFS info (device sda1): forced readonly
[833267.739068] BTRFS: error (device sda1) in btrfs_run_delayed_refs:2935:
errno=-2 No such entry
[833267.739112] BTRFS warning (device sda1): Skipping commit of aborted
transaction.
[833267.739116] BTRFS: error (device sda1) in cleanup_transaction:1846:
errno=-2 No such entry
I don't know if it is a bug or it is my btrfs partition spoiled somehow.
