From: "George Spelvin" Subject: e2fsck: eh_magic = 0000 != f30a Date: 13 Nov 2012 07:03:27 -0500 Message-ID: <20121113120327.31308.qmail@science.horizon.com> Cc: linux@horizon.com To: linux-ext4@vger.kernel.org Return-path: Received: from science.horizon.com ([71.41.210.146]:29729 "HELO science.horizon.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751556Ab2KMMD3 (ORCPT ); Tue, 13 Nov 2012 07:03:29 -0500 Sender: linux-ext4-owner@vger.kernel.org List-ID: Having just created and filled a 64bit file system, I ran e2fsck on it, and keep getting this message printed shortly after "Pass 1" is printed. It doesn't seem to cause any obvious bad things. Is it dangerous? Adding some debugging prints to e2fsck, I discovered the error occurs with inode 7 (the reside inode) at line 869 of e2fsck/pass1.c. Also, the first fsck ever on the newly filled filesystem (which was run with -D) produced a 1-block error: Pass 5: Checking group summary information Block bitmap differences: -1719140557 Fix? yes Free blocks count wrong for group #52464 (32344, counted=32345). Fix? yes Free blocks count wrong (227072527, counted=227072528). Fix? yes The second (without -D) reversed it: # e2fsck -f -v -C0 /dev/md1 e2fsck 1.43-WIP (22-Sep-2012) Pass 1: Checking inodes, blocks, and sizes eh_magic = 0000 != f30a Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information Block bitmap differences: +1719140557 Fix? yes Free blocks count wrong for group #52464 (32345, counted=32344). Fix? yes Free blocks count wrong (227072528, counted=227072527). Fix? yes Dumping some information: debugfs: ex <7> <7>: does not uses extent block maps debugfs: stat <7> Inode: 7 Type: regular Mode: 0600 Flags: 0x0 Generation: 0 Version: 0x00000000:00000000 User: 0 Group: 0 Size: 4299210752 File ACL: 0 Directory ACL: 0 Links: 1 Blockcount: 188424 Fragment: Address: 0 Number: 0 Size: 0 ctime: 0x50a021ee:00000000 -- Sun Nov 11 17:08:46 2012 atime: 0x50a021ee:00000000 -- Sun Nov 11 17:08:46 2012 mtime: 0x50a021ee:00000000 -- Sun Nov 11 17:08:46 2012 crtime: 0x50a021ee:00000000 -- Sun Nov 11 17:08:46 2012 Size of extra inode fields: 28 Inode checksum: 0xb1958b41 BLOCKS: (DIND):2122, (IND):1025, (1036):33793, (1037):99329, (1038):164865, (1039):230401, (1040):295937, (1041):820225, (1042):885761, (1043):1606657, (1044):2655233, (1045):4097025, (1046):7963649, (1047):11240449, (1048):20481025, (1049):23888897, (1050):71664641, (1051):78676993, (1052):102401025, (1053):214991873, (1054):512001025, (1055):550732801, (1056):644973569, (1057):1934918657, (IND):1026, (2060):33794, (2061):99330, (2062):164866, (2063):230402, (2064):295938, (2065):820226, (2066):885762, (2067):1606658, (2068):2655234, (2069):4097026, (2070):7963650, (2071):11240450, (2072):20481026, (2073):23888898, (2074):71664642, (2075):78676994, (2076):102401026, (2077):214991874, (2078):512001026, (2079):550732802, (2080):644973570, (2081):1934918658, (IND):1027, (3084):33795, (3085):99331, ( 3086):164867, (3087):230403, (3088):295939, (3089):820227, (3090):885763, (3091):1606659, (3092):2655235, (3093):4097027, (3094):7963651, (3095):11240451, (3096):20481027, (3097):23888899, (3098):71664643, (3099):78676995, (3100):102401027, (3101):214991875, (3102):512001027, (3103):550732803, (3104):644973571, (3105):1934918659, (IND):1028, (4108):33796, (4109):99332, (4110):164868, (4111):230404, (4112):295940, (4113):820228, (4114):885764, (4115):1606660, (4116):2655236, (4117):4097028, (4118):7963652, (4119):11240452, (4120):20481028, (4121):23888900, (4122):71664644, (4123):78676996, (4124):102401028, (4125):214991876, (4126):512001028, (4127):550732804, (4128):644973572, (4129):1934918660, (IND):1029, (5132):33797, (5133):99333, (5134):164869, (5135):230405, (5136):295941, (5137):8 20229, (5138):885765, (5139):1606661, (5140):2655237, (5141):4097029, (5142):7963653, (5143):11240453, (5144):20481029, (5145):23888901, (5146):71664645, (5147):78676997, (5148):102401029, (5149):214991877, (5150):512001029, (5151):550732805, (5152):644973573, (5153):1934918661, (IND):1030, (6156):33798, (6157):99334, (6158):164870, (6159):230406, (6160):295942, (6161):820230, (6162):885766, (6163):1606662, (6164):2655238, (6165):4097030, (6166):7963654, (6167):11240454, (6168):20481030, (6169):23888902, (6170):71664646, (6171):78676998, (6172):102401030, (6173):214991878, (6174):512001030, (6175):550732806, (6176):644973574, (6177):1934918662, (IND):1031, (7180):33799, (7181):99335, (7182):164871, (7183):230407, (7184):295943, (7185):820231, (7186):885767, (7187):1606663, (7188):2655239 , (7189):4097031, (7190):7963655, (7191):11240455, (7192):20481031, (7193):23888903, (7194):71664647, (7195):78676999, (7196):102401031, (7197):214991879, (7198):512001031, (7199):550732807, (7200):644973575, (7201):1934918663, (IND):1032, (8204):33800, (8205):99336, (8206):164872, (8207):230408, (8208):295944, (8209):820232, (8210):885768, (8211):1606664, (8212):2655240, (8213):4097032, (8214):7963656, (8215):11240456, (8216):20481032, (8217):23888904, (8218):71664648, (8219):78677000, (8220):102401032, (8221):214991880, (8222):512001032, (8223):550732808, (8224):644973576, (8225):1934918664, (IND):1033, (9228):33801, (9229):99337, (9230):164873, (9231):230409, (9232):295945, (9233):820233, (9234):885769, (9235):1606665, (9236):2655241, (9237):4097033, (9238):7963657, (9239):11240457, ( 9240):20481033, (9241):23888905, (9242):71664649, (9243):78677001, (9244):102401033, (9245):214991881, (9246):512001033, (9247):550732809, (9248):644973577, (9249):1934918665, (IND):1034, (10252):33802, (10253):99338, (10254):164874, (10255):230410, (10256):295946, (10257):820234, (10258):885770, (10259):1606666, (10260):2655242, (10261):4097034, (10262):7963658, (10263):11240458, (10264):20481034, (10265):23888906, (10266):71664650, (10267):78677002, (10268):102401034, (10269):214991882, (10270):512001034, (10271):550732810, (10272):644973578, (10273):1934918666, (IND):1035, (11276):33803, (11277):99339, (11278):164875, (11279):230411, (11280):295947, (11281):820235, (11282):885771, (11283):1606667, (11284):2655243, (11285):4097035, (11286):7963659, (11287):11240459, (11288):20481035, ( 11289):23888907, (11290):71664651, (11291):78677003, (11292):102401035, (11293):214991883, (11294):512001035, (11295):550732811, (11296):644973579, (11297):1934918667, (IND):1036, (12300):33804, (12301):99340, (12302):164876, (12303):230412, (12304):295948, (12305):820236, (12306):885772, (12307):1606668, (12308):2655244, (12309):4097036, (12310):7963660, (12311):11240460, (12312):20481036, (12313):23888908, (12314):71664652, (12315):78677004, (12316):102401036, (12317):214991884, (12318):512001036, (12319):550732812, (12320):644973580, (12321):1934918668, (IND):1037, (13324):33805, (13325):99341, (13326):164877, (13327):230413, (13328):295949, (13329):820237, (13330):885773, (13331):1606669, (13332):2655245, (13333):4097037, (13334):7963661, (13335):11240461, (13336):20481037, (13337):2 3888909, [snip] (IND):1023, (1047564):33791, (1047565):99327, (1047566):164863, (1047567):230399, (1047568):295935, (1047569):820223, (1047570):885759, (1047571):1606655, (1047572):2655231, (1047573):4097023, (1047574):7963647, (1047575):11240447, (1047576):20481023, (1047577):23888895, (1047578):71664639, (1047579):78676991, (1047580):102401023, (1047581):214991871, (1047582):512001023, (1047583):550732799, (1047584):644973567, (1047585):1934918655, (IND):1024, (1048588):33792, (1048589):99328, (1048590):164864, (1048591):230400, (1048592):295936, (1048593):820224, (1048594):885760, (1048595):1606656, (1048596):2655232, (1048597):4097024, (1048598):7963648, (1048599):11240448, (1048600):20481024, (1048601):23888896, (1048602):71664640, (1048603):78676992, (1048604):102401024, (1048605):214991872, (10486 06):512001024, (1048607):550732800, (1048608):644973568, (1048609):1934918656 TOTAL: 23553