Hi, btrfs-progs 4.16, kernel 4.16
--mode original comes up with no errors, --mode lowmem comes up with a bunch of "referencer count mismatch" messages and also ERROR: errors found in extent allocation tree or chunk allocation, and most of the byte totals differ as well. <original >lowmem <found 807219568640 bytes used, no error found >found 807241723904 bytes used, error(s) found <total csum bytes: 783568540 >total csum bytes: 783568540 <total tree bytes: 4670013440 >total tree bytes: 8539635712 <total fs tree bytes: 3664117760 >total fs tree bytes: 7533740032 <total extent tree bytes: 171425792 >total extent tree bytes: 171425792 <btree space waste bytes: 714424438 >btree space waste bytes: 1366949310 <file data blocks allocated: 18927213621248 >file data blocks allocated: 35905640476672 < referenced 3122882674688 > referenced 6583743541248 A btrfs-image for this same file system was submitted for other lowmem complaints including this one, but seems there are more of this message now with 4.16, and no other messages. But I can make another image if that's helpful or whatever other info is needed. File system is working fine near as I can tell, and passed an online scrub in the past week with zero errors. compat_flags 0x0 compat_ro_flags 0x0 incompat_flags 0x161 ( MIXED_BACKREF | BIG_METADATA | EXTENDED_IREF | SKINNY_METADATA ) [chris@f28s ~]$ sudo btrfs fi df -b /mnt/first Data, single: total=803158884352, used=802571710464 System, DUP: total=33554432, used=98304 Metadata, DUP: total=5905580032, used=4669915136 GlobalReserve, single: total=536870912, used=0 [chris@f28s ~]$ sudo btrfs fi show --raw /mnt/first Label: 'first' uuid: 0f43f49d-6e63-4b1b-bc8c-c54da409872d Total devices 1 FS bytes used 807241723904 devid 2 size 1099509530624 used 815037153280 path /dev/mapper/first 128 subvolumes, 122 of which are ro snapshots Attached file contains both btrfs checks and dump super -- Chris Murphy
[chris@f28s ~]$ sudo btrfs --version btrfs-progs v4.16 [chris@f28s ~]$ sudo btrfs check /dev/mapper/first Checking filesystem on /dev/mapper/first UUID: 0f43f49d-6e63-4b1b-bc8c-c54da409872d checking extents checking free space cache checking fs roots checking csums checking root refs found 807219568640 bytes used, no error found total csum bytes: 783568540 total tree bytes: 4670013440 total fs tree bytes: 3664117760 total extent tree bytes: 171425792 btree space waste bytes: 714424438 file data blocks allocated: 18927213621248 referenced 3122882674688 [chris@f28s ~]$ sudo btrfs check --mode lowmem /dev/mapper/first Checking filesystem on /dev/mapper/first UUID: 0f43f49d-6e63-4b1b-bc8c-c54da409872d checking extents ERROR: extent[1258793181184, 81903616] referencer count mismatch (root: 2192, owner: 323075, offset: 0) wanted: 551, have: 625 ERROR: extent[1258899460096, 82878464] referencer count mismatch (root: 2192, owner: 323115, offset: 0) wanted: 521, have: 633 ERROR: extent[1259036663808, 64319488] referencer count mismatch (root: 2192, owner: 323125, offset: 0) wanted: 376, have: 491 ERROR: extent[1259102384128, 64552960] referencer count mismatch (root: 2192, owner: 323137, offset: 0) wanted: 439, have: 493 ERROR: extent[1259171381248, 113295360] referencer count mismatch (root: 2192, owner: 323147, offset: 0) wanted: 763, have: 865 ERROR: extent[1259307835392, 2576384] referencer count mismatch (root: 2192, owner: 323191, offset: 0) wanted: 9, have: 20 ERROR: extent[1259327455232, 30089216] referencer count mismatch (root: 2192, owner: 323203, offset: 0) wanted: 204, have: 230 ERROR: extent[1259372060672, 1974272] referencer count mismatch (root: 2192, owner: 323218, offset: 0) wanted: 13, have: 16 ERROR: extent[1259924090880, 22102016] referencer count mismatch (root: 2192, owner: 323199, offset: 427819008) wanted: 52, have: 169 ERROR: extent[1259960025088, 2211840] referencer count mismatch (root: 2192, owner: 323244, offset: 0) wanted: 11, have: 17 ERROR: extent[1260158959616, 53563392] referencer count mismatch (root: 2192, owner: 323328, offset: 0) wanted: 328, have: 409 ERROR: extent[1260258131968, 134217728] referencer count mismatch (root: 2192, owner: 323609, offset: 0) wanted: 959, have: 1024 ERROR: extent[1260410531840, 1716224] referencer count mismatch (root: 2192, owner: 323625, offset: 0) wanted: 4, have: 14 ERROR: extent[1261505388544, 1839104] referencer count mismatch (root: 2192, owner: 323654, offset: 0) wanted: 10, have: 15 ERROR: extent[1261846781952, 56676352] referencer count mismatch (root: 2192, owner: 323731, offset: 0) wanted: 354, have: 433 ERROR: extent[1262246526976, 2256896] referencer count mismatch (root: 2192, owner: 323750, offset: 0) wanted: 10, have: 18 ERROR: extent[1262765875200, 765952] referencer count mismatch (root: 2192, owner: 319045, offset: 0) wanted: 5, have: 6 ERROR: extent[1262984384512, 1642496] referencer count mismatch (root: 2192, owner: 322213, offset: 0) wanted: 6, have: 13 ERROR: extent[1263573057536, 1159168] referencer count mismatch (root: 2192, owner: 323009, offset: 0) wanted: 2, have: 9 ERROR: extent[1263615098880, 1220608] referencer count mismatch (root: 2192, owner: 323062, offset: 0) wanted: 1, have: 10 ERROR: extent[1263647588352, 2310144] referencer count mismatch (root: 2192, owner: 330026, offset: 0) wanted: 6, have: 18 ERROR: extent[1263665254400, 3538944] referencer count mismatch (root: 2192, owner: 330035, offset: 0) wanted: 16, have: 27 ERROR: extent[1263695650816, 1773568] referencer count mismatch (root: 2192, owner: 330054, offset: 0) wanted: 8, have: 14 ERROR: extent[1263894016000, 1536000] referencer count mismatch (root: 2192, owner: 319139, offset: 0) wanted: 9, have: 12 ERROR: extent[1263904493568, 1122304] referencer count mismatch (root: 2192, owner: 319151, offset: 0) wanted: 3, have: 9 ERROR: extent[1263915298816, 540672] referencer count mismatch (root: 2192, owner: 319176, offset: 0) wanted: 1, have: 5 ERROR: extent[1264166404096, 679936] referencer count mismatch (root: 2192, owner: 319672, offset: 0) wanted: 3, have: 6 ERROR: extent[1264205729792, 2166784] referencer count mismatch (root: 2192, owner: 319706, offset: 0) wanted: 13, have: 17 ERROR: extent[1264443080704, 327680] referencer count mismatch (root: 2192, owner: 319874, offset: 0) wanted: 2, have: 3 ERROR: extent[1264474132480, 1277952] referencer count mismatch (root: 2192, owner: 319926, offset: 0) wanted: 6, have: 10 ERROR: extent[1264494592000, 1622016] referencer count mismatch (root: 2192, owner: 319943, offset: 0) wanted: 12, have: 13 ERROR: extent[1264528855040, 2527232] referencer count mismatch (root: 2192, owner: 319965, offset: 0) wanted: 16, have: 20 ERROR: extent[1264556707840, 901120] referencer count mismatch (root: 2192, owner: 319974, offset: 0) wanted: 3, have: 7 ERROR: extent[1265866297344, 651264] referencer count mismatch (root: 2192, owner: 320062, offset: 0) wanted: 2, have: 5 ERROR: extent[1266110365696, 929792] referencer count mismatch (root: 2192, owner: 320074, offset: 0) wanted: 7, have: 8 ERROR: extent[1266197757952, 2420736] referencer count mismatch (root: 2192, owner: 320101, offset: 0) wanted: 12, have: 19 ERROR: extent[1266310610944, 2519040] referencer count mismatch (root: 2192, owner: 320139, offset: 0) wanted: 3, have: 20 ERROR: extent[1266373623808, 2641920] referencer count mismatch (root: 2192, owner: 320171, offset: 0) wanted: 6, have: 21 ERROR: extent[1266563051520, 1077248] referencer count mismatch (root: 2192, owner: 320185, offset: 0) wanted: 3, have: 9 ERROR: extent[1266759434240, 958464] referencer count mismatch (root: 2192, owner: 320203, offset: 0) wanted: 4, have: 8 ERROR: extent[1266968154112, 995328] referencer count mismatch (root: 2192, owner: 320237, offset: 0) wanted: 7, have: 8 ERROR: extent[1267030790144, 143360] referencer count mismatch (root: 2192, owner: 320262, offset: 0) wanted: 1, have: 2 ERROR: extent[1267294498816, 2236416] referencer count mismatch (root: 2192, owner: 320603, offset: 0) wanted: 7, have: 18 ERROR: extent[1267580084224, 2674688] referencer count mismatch (root: 2192, owner: 320658, offset: 0) wanted: 8, have: 21 ERROR: extent[1267642232832, 1830912] referencer count mismatch (root: 2192, owner: 320670, offset: 0) wanted: 9, have: 14 ERROR: extent[1267759599616, 827392] referencer count mismatch (root: 2192, owner: 320779, offset: 0) wanted: 1, have: 7 ERROR: extent[1267773407232, 749568] referencer count mismatch (root: 2192, owner: 320798, offset: 0) wanted: 5, have: 6 ERROR: extent[1267807432704, 794624] referencer count mismatch (root: 2192, owner: 320825, offset: 0) wanted: 3, have: 7 ERROR: extent[1268002275328, 2113536] referencer count mismatch (root: 2192, owner: 321004, offset: 0) wanted: 10, have: 17 ERROR: extent[1268018139136, 487424] referencer count mismatch (root: 2192, owner: 321022, offset: 0) wanted: 3, have: 4 ERROR: extent[1275709833216, 1851392] referencer count mismatch (root: 2192, owner: 297626, offset: 0) wanted: 3, have: 15 ERROR: extent[1276216307712, 1200128] referencer count mismatch (root: 2192, owner: 298910, offset: 0) wanted: 5, have: 10 ERROR: extent[1276231864320, 1441792] referencer count mismatch (root: 2192, owner: 298925, offset: 0) wanted: 3, have: 11 ERROR: extent[1276248236032, 1175552] referencer count mismatch (root: 2192, owner: 298937, offset: 0) wanted: 7, have: 9 ERROR: extent[1276260663296, 499712] referencer count mismatch (root: 2192, owner: 298955, offset: 0) wanted: 3, have: 4 ERROR: extent[1276349661184, 1343488] referencer count mismatch (root: 2192, owner: 299029, offset: 0) wanted: 2, have: 11 ERROR: extent[1276361928704, 679936] referencer count mismatch (root: 2192, owner: 299040, offset: 0) wanted: 4, have: 6 ERROR: extent[1276678701056, 442368] referencer count mismatch (root: 2192, owner: 298248, offset: 0) wanted: 1, have: 4 ERROR: extent[1276703105024, 1273856] referencer count mismatch (root: 2192, owner: 299421, offset: 0) wanted: 1, have: 10 ERROR: extent[1276746051584, 614400] referencer count mismatch (root: 2192, owner: 299487, offset: 0) wanted: 1, have: 5 ERROR: extent[1276758941696, 1392640] referencer count mismatch (root: 2192, owner: 299870, offset: 0) wanted: 8, have: 11 ERROR: extent[1276758941696, 1392640] referencer count mismatch (root: 2192, owner: 299983, offset: 0) wanted: 7, have: 10 ERROR: extent[1276772073472, 1224704] referencer count mismatch (root: 2192, owner: 299881, offset: 0) wanted: 9, have: 10 ERROR: extent[1276789489664, 1355776] referencer count mismatch (root: 2192, owner: 299896, offset: 0) wanted: 3, have: 11 ERROR: extent[1276805271552, 1290240] referencer count mismatch (root: 2192, owner: 299908, offset: 0) wanted: 4, have: 10 ERROR: extent[1276822466560, 1085440] referencer count mismatch (root: 2192, owner: 299923, offset: 0) wanted: 6, have: 9 ERROR: extent[1276839735296, 1454080] referencer count mismatch (root: 2192, owner: 299938, offset: 0) wanted: 6, have: 12 ERROR: extent[1276873445376, 1318912] referencer count mismatch (root: 2192, owner: 299968, offset: 0) wanted: 7, have: 11 ERROR: extent[1276898889728, 1146880] referencer count mismatch (root: 2192, owner: 299991, offset: 0) wanted: 2, have: 9 ERROR: extent[1277025230848, 1191936] referencer count mismatch (root: 2192, owner: 300096, offset: 0) wanted: 3, have: 10 ERROR: extent[1277102907392, 1318912] referencer count mismatch (root: 2192, owner: 300163, offset: 0) wanted: 8, have: 11 ERROR: extent[1277121216512, 1327104] referencer count mismatch (root: 2192, owner: 300178, offset: 0) wanted: 5, have: 11 ERROR: extent[1277188087808, 1179648] referencer count mismatch (root: 2192, owner: 300235, offset: 0) wanted: 7, have: 9 ERROR: extent[1277263859712, 1060864] referencer count mismatch (root: 2192, owner: 300300, offset: 0) wanted: 3, have: 9 ERROR: extent[1277330145280, 1019904] referencer count mismatch (root: 2192, owner: 300361, offset: 0) wanted: 5, have: 8 ERROR: extent[1277343236096, 1044480] referencer count mismatch (root: 2192, owner: 300378, offset: 0) wanted: 6, have: 8 ERROR: extent[1277425733632, 868352] referencer count mismatch (root: 2192, owner: 300464, offset: 0) wanted: 2, have: 7 ERROR: extent[1277739409408, 1138688] referencer count mismatch (root: 2192, owner: 300989, offset: 0) wanted: 1, have: 9 ERROR: extent[1277751787520, 1306624] referencer count mismatch (root: 2192, owner: 301002, offset: 0) wanted: 4, have: 10 ERROR: extent[1278093537280, 925696] referencer count mismatch (root: 2192, owner: 301572, offset: 0) wanted: 7, have: 8 ERROR: extent[1278124670976, 2674688] referencer count mismatch (root: 2192, owner: 301605, offset: 0) wanted: 5, have: 21 ERROR: extent[1278146277376, 2650112] referencer count mismatch (root: 2192, owner: 301615, offset: 0) wanted: 2, have: 21 ERROR: extent[1278179549184, 1032192] referencer count mismatch (root: 2192, owner: 301639, offset: 0) wanted: 7, have: 8 ERROR: extent[1278216667136, 2318336] referencer count mismatch (root: 2192, owner: 301660, offset: 0) wanted: 10, have: 18 ERROR: extent[1278231187456, 2211840] referencer count mismatch (root: 2192, owner: 301671, offset: 0) wanted: 12, have: 17 ERROR: extent[1278264672256, 1740800] referencer count mismatch (root: 2192, owner: 301691, offset: 0) wanted: 10, have: 14 ERROR: extent[1278339145728, 2289664] referencer count mismatch (root: 2192, owner: 302038, offset: 0) wanted: 6, have: 18 ERROR: extent[1278385999872, 1118208] referencer count mismatch (root: 2192, owner: 302074, offset: 0) wanted: 3, have: 9 ERROR: extent[1278455382016, 2969600] referencer count mismatch (root: 2192, owner: 302127, offset: 0) wanted: 20, have: 23 ERROR: extent[1278572425216, 761856] referencer count mismatch (root: 2192, owner: 301121, offset: 0) wanted: 1, have: 6 ERROR: extent[1278588706816, 1871872] referencer count mismatch (root: 2192, owner: 301134, offset: 0) wanted: 3, have: 15 ERROR: extent[1278617640960, 2121728] referencer count mismatch (root: 2192, owner: 301161, offset: 0) wanted: 16, have: 17 ERROR: extent[1278657347584, 1265664] referencer count mismatch (root: 2192, owner: 301188, offset: 0) wanted: 2, have: 10 ERROR: extent[1278674927616, 1822720] referencer count mismatch (root: 2192, owner: 301203, offset: 0) wanted: 9, have: 14 ERROR: extent[1278685224960, 1097728] referencer count mismatch (root: 2192, owner: 301208, offset: 0) wanted: 5, have: 9 ERROR: extent[1278730657792, 2580480] referencer count mismatch (root: 2192, owner: 301243, offset: 0) wanted: 15, have: 20 ERROR: extent[1278749044736, 3244032] referencer count mismatch (root: 2192, owner: 301256, offset: 0) wanted: 4, have: 25 ERROR: extent[1278770667520, 2633728] referencer count mismatch (root: 2192, owner: 301267, offset: 0) wanted: 3, have: 21 ERROR: extent[1278789185536, 364544] referencer count mismatch (root: 2192, owner: 301280, offset: 0) wanted: 1, have: 3 ERROR: extent[1279092916224, 1806336] referencer count mismatch (root: 2192, owner: 302234, offset: 0) wanted: 9, have: 14 ERROR: extent[1279329845248, 2109440] referencer count mismatch (root: 2192, owner: 302421, offset: 0) wanted: 10, have: 17 ERROR: extent[1279415287808, 1380352] referencer count mismatch (root: 2192, owner: 302465, offset: 0) wanted: 10, have: 11 ERROR: extent[1279732752384, 286720] referencer count mismatch (root: 2192, owner: 302526, offset: 0) wanted: 1, have: 3 ERROR: extent[1282148016128, 262144] referencer count mismatch (root: 2192, owner: 305352, offset: 0) wanted: 1, have: 2 ERROR: extent[1282167455744, 512000] referencer count mismatch (root: 2192, owner: 305401, offset: 0) wanted: 1, have: 4 ERROR: extent[1282197204992, 401408] referencer count mismatch (root: 2192, owner: 305500, offset: 0) wanted: 3, have: 4 ERROR: extent[1282218409984, 479232] referencer count mismatch (root: 2192, owner: 305576, offset: 0) wanted: 1, have: 4 ERROR: extent[1282224476160, 446464] referencer count mismatch (root: 2192, owner: 305590, offset: 0) wanted: 1, have: 4 ERROR: extent[1282228514816, 348160] referencer count mismatch (root: 2192, owner: 305606, offset: 0) wanted: 2, have: 3 ERROR: extent[1282247221248, 397312] referencer count mismatch (root: 2192, owner: 305652, offset: 0) wanted: 2, have: 4 ERROR: extent[1282264170496, 16564224] referencer count mismatch (root: 2192, owner: 305700, offset: 0) wanted: 103, have: 127 ERROR: extent[1282293092352, 33533952] referencer count mismatch (root: 2192, owner: 305712, offset: 0) wanted: 134, have: 256 ERROR: extent[1282355109888, 14557184] referencer count mismatch (root: 2192, owner: 305747, offset: 0) wanted: 78, have: 112 ERROR: extent[1282395701248, 36519936] referencer count mismatch (root: 2192, owner: 305768, offset: 0) wanted: 202, have: 279 ERROR: extent[1282460270592, 18821120] referencer count mismatch (root: 2192, owner: 305801, offset: 0) wanted: 79, have: 144 ERROR: extent[1282479751168, 44199936] referencer count mismatch (root: 2192, owner: 305787, offset: 0) wanted: 315, have: 338 ERROR: extent[1282537447424, 4571136] referencer count mismatch (root: 2192, owner: 305803, offset: 0) wanted: 7, have: 35 ERROR: extent[1282574532608, 1294336] referencer count mismatch (root: 2192, owner: 305825, offset: 0) wanted: 9, have: 10 ERROR: extent[1282597568512, 18264064] referencer count mismatch (root: 2192, owner: 306182, offset: 0) wanted: 72, have: 140 ERROR: extent[1282636775424, 24395776] referencer count mismatch (root: 2192, owner: 306200, offset: 0) wanted: 88, have: 187 ERROR: extent[1282663895040, 29925376] referencer count mismatch (root: 2192, owner: 306211, offset: 0) wanted: 107, have: 229 ERROR: extent[1282727006208, 1732608] referencer count mismatch (root: 2192, owner: 306284, offset: 0) wanted: 4, have: 14 ERROR: extent[1283804733440, 2121728] referencer count mismatch (root: 2192, owner: 307509, offset: 0) wanted: 7, have: 17 ERROR: extent[1285734670336, 1257472] referencer count mismatch (root: 2192, owner: 309442, offset: 0) wanted: 4, have: 10 ERROR: extent[1285748789248, 1019904] referencer count mismatch (root: 2192, owner: 309453, offset: 0) wanted: 3, have: 8 ERROR: extent[1285771227136, 1200128] referencer count mismatch (root: 2192, owner: 309482, offset: 0) wanted: 3, have: 10 ERROR: extent[1285781032960, 1413120] referencer count mismatch (root: 2192, owner: 309491, offset: 0) wanted: 3, have: 11 ERROR: extent[1285794684928, 1384448] referencer count mismatch (root: 2192, owner: 309511, offset: 0) wanted: 10, have: 11 ERROR: extent[1285803339776, 35004416] referencer count mismatch (root: 2192, owner: 309519, offset: 0) wanted: 103, have: 268 ERROR: extent[1285898678272, 74964992] referencer count mismatch (root: 2192, owner: 309539, offset: 0) wanted: 553, have: 572 ERROR: extent[1286063390720, 901120] referencer count mismatch (root: 2192, owner: 309818, offset: 0) wanted: 2, have: 7 ERROR: extent[1286080565248, 581632] referencer count mismatch (root: 2192, owner: 309832, offset: 0) wanted: 2, have: 5 ERROR: extent[1286091714560, 55832576] referencer count mismatch (root: 2192, owner: 309846, offset: 0) wanted: 421, have: 426 ERROR: extent[1286224744448, 1101824] referencer count mismatch (root: 2192, owner: 309914, offset: 0) wanted: 1, have: 9 ERROR: extent[1286245924864, 46239744] referencer count mismatch (root: 2192, owner: 309950, offset: 0) wanted: 208, have: 353 ERROR: extent[1286345191424, 61583360] referencer count mismatch (root: 2192, owner: 310410, offset: 0) wanted: 467, have: 470 ERROR: extent[1286411018240, 946176] referencer count mismatch (root: 2192, owner: 310415, offset: 0) wanted: 3, have: 8 ERROR: extent[1286445035520, 1765376] referencer count mismatch (root: 2192, owner: 310447, offset: 0) wanted: 12, have: 14 ERROR: extent[1286493294592, 1101824] referencer count mismatch (root: 2192, owner: 310497, offset: 0) wanted: 7, have: 9 ERROR: extent[1286503321600, 1622016] referencer count mismatch (root: 2192, owner: 310505, offset: 0) wanted: 4, have: 13 ERROR: extent[1286561673216, 1445888] referencer count mismatch (root: 2192, owner: 310586, offset: 0) wanted: 5, have: 12 ERROR: extent[1286589431808, 1449984] referencer count mismatch (root: 2192, owner: 310602, offset: 0) wanted: 2, have: 12 ERROR: extent[1286600970240, 1220608] referencer count mismatch (root: 2192, owner: 310616, offset: 0) wanted: 1, have: 10 ERROR: extent[1286639788032, 1437696] referencer count mismatch (root: 2192, owner: 310651, offset: 0) wanted: 1, have: 11 ERROR: extent[1286727856128, 1028096] referencer count mismatch (root: 2192, owner: 310773, offset: 0) wanted: 5, have: 8 ERROR: extent[1286823809024, 1056768] referencer count mismatch (root: 2192, owner: 310818, offset: 0) wanted: 3, have: 9 ERROR: extent[1286846889984, 60305408] referencer count mismatch (root: 2192, owner: 310860, offset: 0) wanted: 163, have: 461 ERROR: extent[1286965108736, 12251136] referencer count mismatch (root: 2192, owner: 310890, offset: 0) wanted: 52, have: 94 ERROR: extent[1286995849216, 37302272] referencer count mismatch (root: 2192, owner: 310896, offset: 0) wanted: 267, have: 285 ERROR: extent[1287054004224, 59039744] referencer count mismatch (root: 2192, owner: 310921, offset: 0) wanted: 291, have: 451 ERROR: extent[1287136403456, 2404352] referencer count mismatch (root: 2192, owner: 310936, offset: 0) wanted: 3, have: 19 ERROR: extent[1287167025152, 700416] referencer count mismatch (root: 2192, owner: 310973, offset: 0) wanted: 5, have: 6 ERROR: extent[1287178797056, 831488] referencer count mismatch (root: 2192, owner: 310993, offset: 0) wanted: 4, have: 7 ERROR: extent[1287236378624, 872448] referencer count mismatch (root: 2192, owner: 309269, offset: 0) wanted: 1, have: 7 ERROR: extent[1287247785984, 819200] referencer count mismatch (root: 2192, owner: 309283, offset: 0) wanted: 4, have: 7 ERROR: extent[1287278882816, 671744] referencer count mismatch (root: 2192, owner: 309344, offset: 0) wanted: 3, have: 6 ERROR: extent[1288091054080, 524288] referencer count mismatch (root: 2192, owner: 312832, offset: 0) wanted: 1, have: 4 ERROR: extent[1288558190592, 134217728] referencer count mismatch (root: 2192, owner: 313603, offset: 0) wanted: 979, have: 1024 ERROR: extent[1288755884032, 1441792] referencer count mismatch (root: 2192, owner: 313655, offset: 0) wanted: 4, have: 11 ERROR: extent[1289352884224, 1601536] referencer count mismatch (root: 2192, owner: 313787, offset: 0) wanted: 2, have: 13 ERROR: extent[1289358970880, 134217728] referencer count mismatch (root: 2192, owner: 313792, offset: 0) wanted: 886, have: 1024 ERROR: extent[1289960189952, 1089536] referencer count mismatch (root: 2192, owner: 313879, offset: 0) wanted: 3, have: 9 ERROR: extent[1290752475136, 2215936] referencer count mismatch (root: 2192, owner: 313932, offset: 0) wanted: 4, have: 17 ERROR: extent[1290786590720, 1318912] referencer count mismatch (root: 2192, owner: 313959, offset: 0) wanted: 2, have: 11 ERROR: extent[1290945564672, 1662976] referencer count mismatch (root: 2192, owner: 314025, offset: 0) wanted: 6, have: 13 ERROR: extent[1291138732032, 593920] referencer count mismatch (root: 2192, owner: 315673, offset: 0) wanted: 1, have: 5 ERROR: extent[1291221585920, 1675264] referencer count mismatch (root: 2192, owner: 315837, offset: 0) wanted: 9, have: 13 ERROR: extent[1291272941568, 1454080] referencer count mismatch (root: 2192, owner: 315873, offset: 0) wanted: 8, have: 12 ERROR: extent[1291338227712, 2686976] referencer count mismatch (root: 2192, owner: 315984, offset: 0) wanted: 5, have: 21 ERROR: extent[1291353747456, 2375680] referencer count mismatch (root: 2192, owner: 315990, offset: 0) wanted: 8, have: 19 ERROR: extent[1291470073856, 389120] referencer count mismatch (root: 2192, owner: 316139, offset: 0) wanted: 2, have: 3 ERROR: extent[1291477278720, 2109440] referencer count mismatch (root: 2192, owner: 316456, offset: 0) wanted: 13, have: 17 ERROR: extent[1291489882112, 134217728] referencer count mismatch (root: 2192, owner: 316466, offset: 0) wanted: 969, have: 1024 ERROR: extent[1291647651840, 2347008] referencer count mismatch (root: 2192, owner: 316490, offset: 0) wanted: 11, have: 18 ERROR: extent[1291662057472, 2035712] referencer count mismatch (root: 2192, owner: 316499, offset: 0) wanted: 13, have: 16 ERROR: extent[1292130070528, 1155072] referencer count mismatch (root: 2192, owner: 316627, offset: 0) wanted: 5, have: 9 ERROR: extent[1292336484352, 360448] referencer count mismatch (root: 2192, owner: 316719, offset: 0) wanted: 1, have: 3 ERROR: extent[1292668243968, 1474560] referencer count mismatch (root: 2192, owner: 316952, offset: 0) wanted: 4, have: 12 ERROR: extent[1292695543808, 1359872] referencer count mismatch (root: 2192, owner: 316976, offset: 0) wanted: 10, have: 11 ERROR: extent[1292714188800, 1687552] referencer count mismatch (root: 2192, owner: 316988, offset: 0) wanted: 2, have: 13 ERROR: extent[1292765691904, 1769472] referencer count mismatch (root: 2192, owner: 317017, offset: 0) wanted: 10, have: 14 ERROR: extent[1292781031424, 892928] referencer count mismatch (root: 2192, owner: 317032, offset: 0) wanted: 1, have: 7 ERROR: extent[1292795318272, 929792] referencer count mismatch (root: 2192, owner: 317041, offset: 0) wanted: 7, have: 8 ERROR: extent[1292812013568, 2830336] referencer count mismatch (root: 2192, owner: 317052, offset: 0) wanted: 11, have: 22 ERROR: extent[1292875067392, 1970176] referencer count mismatch (root: 2192, owner: 317098, offset: 0) wanted: 3, have: 16 ERROR: extent[1292889546752, 134217728] referencer count mismatch (root: 2192, owner: 317212, offset: 0) wanted: 856, have: 1024 ERROR: extent[1293217169408, 25329664] referencer count mismatch (root: 2192, owner: 317212, offset: 310116352) wanted: 59, have: 194 ERROR: extent[1293396553728, 2338816] referencer count mismatch (root: 2192, owner: 317168, offset: 0) wanted: 3, have: 18 ERROR: extent[1293473275904, 33972224] referencer count mismatch (root: 2192, owner: 317183, offset: 0) wanted: 230, have: 260 ERROR: extent[1293507248128, 134217728] referencer count mismatch (root: 2192, owner: 317186, offset: 0) wanted: 883, have: 1024 ERROR: extent[1294790914048, 1032192] referencer count mismatch (root: 2192, owner: 314542, offset: 0) wanted: 4, have: 8 ERROR: extent[1295180226560, 2105344] referencer count mismatch (root: 2192, owner: 314715, offset: 0) wanted: 3, have: 17 ERROR: extent[1295194308608, 1912832] referencer count mismatch (root: 2192, owner: 314732, offset: 0) wanted: 12, have: 15 ERROR: extent[1295208464384, 1626112] referencer count mismatch (root: 2192, owner: 314740, offset: 0) wanted: 3, have: 13 ERROR: extent[1295395008512, 68243456] referencer count mismatch (root: 2192, owner: 314787, offset: 0) wanted: 203, have: 521 ERROR: extent[1295463251968, 44236800] referencer count mismatch (root: 2192, owner: 314742, offset: 134217728) wanted: 294, have: 338 ERROR: extent[1295510691840, 1417216] referencer count mismatch (root: 2192, owner: 314797, offset: 0) wanted: 7, have: 11 ERROR: extent[1295590973440, 2424832] referencer count mismatch (root: 2192, owner: 314875, offset: 0) wanted: 5, have: 19 ERROR: extent[1295600427008, 82325504] referencer count mismatch (root: 2192, owner: 314890, offset: 0) wanted: 566, have: 629 ERROR: extent[1295719088128, 2453504] referencer count mismatch (root: 2192, owner: 314911, offset: 0) wanted: 11, have: 19 ERROR: extent[1295735943168, 134217728] referencer count mismatch (root: 2192, owner: 314922, offset: 0) wanted: 995, have: 1024 ERROR: extent[1296418197504, 585728] referencer count mismatch (root: 2192, owner: 314944, offset: 0) wanted: 3, have: 5 ERROR: extent[1296969801728, 68718592] referencer count mismatch (root: 2192, owner: 314933, offset: 0) wanted: 410, have: 525 ERROR: extent[1297821396992, 4706304] referencer count mismatch (root: 2192, owner: 315554, offset: 0) wanted: 3, have: 36 ERROR: extent[1297894973440, 507904] referencer count mismatch (root: 2192, owner: 317614, offset: 0) wanted: 1, have: 4 ERROR: extent[1297908019200, 2043904] referencer count mismatch (root: 2192, owner: 317628, offset: 0) wanted: 3, have: 16 ERROR: extent[1297939410944, 2150400] referencer count mismatch (root: 2192, owner: 317661, offset: 0) wanted: 16, have: 17 ERROR: extent[1298589421568, 2215936] referencer count mismatch (root: 2192, owner: 317759, offset: 0) wanted: 3, have: 17 ERROR: extent[1298620256256, 30285824] referencer count mismatch (root: 2192, owner: 317787, offset: 0) wanted: 127, have: 232 ERROR: extent[1298674737152, 27983872] referencer count mismatch (root: 2192, owner: 329099, offset: 0) wanted: 207, have: 214 ERROR: extent[1298702852096, 471040] referencer count mismatch (root: 2192, owner: 317815, offset: 0) wanted: 3, have: 4 ERROR: extent[1298703323136, 134217728] referencer count mismatch (root: 2192, owner: 329098, offset: 0) wanted: 844, have: 1024 ERROR: extent[1298845536256, 53420032] referencer count mismatch (root: 2192, owner: 317816, offset: 134217728) wanted: 310, have: 408 ERROR: extent[1298900983808, 10428416] referencer count mismatch (root: 2192, owner: 329096, offset: 0) wanted: 66, have: 80 ERROR: extent[1298900983808, 10428416] referencer count mismatch (root: 2192, owner: 317825, offset: 0) wanted: 51, have: 80 ERROR: extent[1298911412224, 36126720] referencer count mismatch (root: 2192, owner: 317826, offset: 0) wanted: 117, have: 276 ERROR: extent[1298911412224, 36126720] referencer count mismatch (root: 2192, owner: 329095, offset: 0) wanted: 137, have: 276 ERROR: extent[1298953486336, 90873856] referencer count mismatch (root: 2192, owner: 317843, offset: 0) wanted: 596, have: 694 ERROR: extent[1298953486336, 90873856] referencer count mismatch (root: 2192, owner: 329093, offset: 0) wanted: 521, have: 694 ERROR: extent[1299215028224, 2027520] referencer count mismatch (root: 2192, owner: 317878, offset: 0) wanted: 4, have: 16 ERROR: extent[1299275636736, 2654208] referencer count mismatch (root: 2192, owner: 317900, offset: 0) wanted: 5, have: 21 ERROR: extent[1299303247872, 4628480] referencer count mismatch (root: 2192, owner: 317931, offset: 0) wanted: 7, have: 36 ERROR: extent[1299368595456, 19660800] referencer count mismatch (root: 2192, owner: 317850, offset: 134217728) wanted: 88, have: 150 ERROR: extent[1299406565376, 888832] referencer count mismatch (root: 2192, owner: 317986, offset: 0) wanted: 6, have: 7 ERROR: extent[1299640987648, 2568192] referencer count mismatch (root: 2192, owner: 318047, offset: 0) wanted: 16, have: 20 ERROR: extent[1300195487744, 2138112] referencer count mismatch (root: 2192, owner: 318075, offset: 0) wanted: 5, have: 17 ERROR: extent[1300212133888, 27443200] referencer count mismatch (root: 2192, owner: 318089, offset: 0) wanted: 190, have: 210 ERROR: extent[1334735675392, 106651648] referencer count mismatch (root: 2192, owner: 329091, offset: 0) wanted: 593, have: 814 ERROR: extent[1334842327040, 103424000] referencer count mismatch (root: 2192, owner: 329089, offset: 0) wanted: 701, have: 790 ERROR: extent[1386454097920, 1404928] referencer count mismatch (root: 2192, owner: 338307, offset: 0) wanted: 2, have: 10 ERROR: extent[1386556035072, 1564672] referencer count mismatch (root: 2192, owner: 338195, offset: 0) wanted: 5, have: 11 ERROR: extent[1386676543488, 1310720] referencer count mismatch (root: 2192, owner: 340273, offset: 0) wanted: 5, have: 9 ERROR: extent[1405711015936, 3756032] referencer count mismatch (root: 2192, owner: 354260, offset: 0) wanted: 2, have: 29 ERROR: extent[1406415671296, 1679360] referencer count mismatch (root: 2192, owner: 354255, offset: 0) wanted: 1, have: 13 ERROR: errors found in extent allocation tree or chunk allocation checking free space cache checking fs roots checking csums checking root refs found 807241723904 bytes used, error(s) found total csum bytes: 783568540 total tree bytes: 8539635712 total fs tree bytes: 7533740032 total extent tree bytes: 171425792 btree space waste bytes: 1366949310 file data blocks allocated: 35905640476672 referenced 6583743541248 [chris@f28s ~]$ [chris@f28s ~]$ sudo btrfs insp dump-s /dev/mapper/first superblock: bytenr=65536, device=/dev/mapper/first --------------------------------------------------------- csum_type 0 (crc32c) csum_size 4 csum 0x93e34c4f [match] bytenr 65536 flags 0x1 ( WRITTEN ) magic _BHRfS_M [match] fsid 0f43f49d-6e63-4b1b-bc8c-c54da409872d label first generation 17938 root 644282925056 sys_array_size 129 chunk_root_generation 17923 root_level 1 chunk_root 644073177088 chunk_root_level 1 log_root 0 log_root_transid 0 log_root_level 0 total_bytes 1099509530624 bytes_used 807241723904 sectorsize 4096 nodesize 16384 leafsize (deprecated) 16384 stripesize 4096 root_dir 6 num_devices 1 compat_flags 0x0 compat_ro_flags 0x0 incompat_flags 0x161 ( MIXED_BACKREF | BIG_METADATA | EXTENDED_IREF | SKINNY_METADATA ) cache_generation 17938 uuid_tree_generation 17938 dev_item.uuid 85dd7183-60be-4379-859f-c24ceffb1034 dev_item.fsid 0f43f49d-6e63-4b1b-bc8c-c54da409872d [match] dev_item.type 0 dev_item.total_bytes 1099509530624 dev_item.bytes_used 815037153280 dev_item.io_align 4096 dev_item.io_width 4096 dev_item.sector_size 4096 dev_item.devid 2 dev_item.dev_group 0 dev_item.seek_speed 0 dev_item.bandwidth 0 dev_item.generation 0