Date: Wed, 18 Dec 2002 13:36:38 -0800 (PST) From: Nate Lawson <nate@root.org> To: Kirk McKusick <mckusick@beastie.mckusick.com> Cc: current@freebsd.org Subject: Re: Data corruption in soft updates? Message-ID: <Pine.BSF.4.21.0212181327520.53677-200000@root.org> In-Reply-To: <200212172034.gBHKY159017983@beastie.mckusick.com>
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This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. Send mail to mime@docserver.cac.washington.edu for more info. --0-1861886173-1040247398=:53677 Content-Type: TEXT/PLAIN; charset=US-ASCII On Tue, 17 Dec 2002, Kirk McKusick wrote: > Please send me a `dumpfs /usr | head -50' output of the filesystem > under the current system. Then clean it up with fsck and run the > same command again. Finally, boot up under the old kernel and > get the output both before and after fsck cleaning. What I am > looking for is changes in the reported size of the filesystem > because that getting out of sync is what is causing these problems. Attached is the first one and then the result after cleaning with fsck did differ. The others were all identical to the latter so they are not included. Below is the diff between the two. Interesting how blocks is reduced post fsck, as you predicted. The question is, why? -Nate --- dump1.txt Wed Dec 18 13:21:56 2002 +++ dump2.txt Wed Dec 18 13:21:56 2002 @@ -1,10 +1,10 @@ -magic 11954 (UFS1) time Wed Dec 18 12:59:07 2002 +magic 11954 (UFS1) time Wed Dec 18 05:01:50 2002 id [ 3d59009b 700be1d7 ] -ncg 20 size 819580 blocks 1794231 +ncg 20 size 819580 blocks 806755 bsize 16384 shift 14 mask 0xffffc000 fsize 2048 shift 11 mask 0xfffff800 frag 8 shift 3 fsbtodb 2 -minfree 8% optim time symlinklen 60 +minfree 8% optim space symlinklen 60 maxbpg 4096 maxcontig 7 contigsumsize 7 nbfree 11421 ndir 19146 nifree 272816 nffree 67693 cpg 89 bpg 11392 fpg 91136 ipg 22528 @@ -14,8 +14,8 @@ rotdelay 0ms rps 60 trackskew 0 interleave 1 nsect 4096 npsect 4096 spc 4096 sblkno 8 cblkno 16 iblkno 24 dblkno 1432 -cgrotor 0 fmod 0 ronly 0 clean 1 -flags soft-updates +cgrotor 0 fmod 0 ronly 0 clean 0 +flags soft-updates unknown flags (0xffffff80) cs[].cs_(nbfree,ndir,nifree,nffree): (0,1482,7459,897) (31,1806,7089,6895) (134,1545,9162,8266) (336,219,19257,8645) @@ -28,10 +28,10 @@ cg 0: -magic 90255 tell 8000 time Wed Dec 18 12:59:07 2002 +magic 90255 tell 8000 time Wed Dec 18 05:01:46 2002 cgx 0 ncyl 89 niblk 22528 ndblk 91136 nbfree 0 ndir 1482 nifree 7459 nffree 897 -rotor 90008 irotor 4016 frotor 50360 +rotor 90008 irotor 4016 frotor 1448 frsum 43 35 24 32 28 25 42 sum of frsum: 897 clusters 1-6: 0 0 0 0 0 0 --0-1861886173-1040247398=:53677 Content-Type: TEXT/PLAIN; charset=US-ASCII; name="dump1.txt" Content-Transfer-Encoding: BASE64 Content-ID: <Pine.BSF.4.21.0212181336380.53677@root.org> Content-Description: Content-Disposition: attachment; filename="dump1.txt" bWFnaWMJMTE5NTQgKFVGUzEpCXRpbWUJV2VkIERlYyAxOCAxMjo1OTowNyAy MDAyDQppZAlbIDNkNTkwMDliIDcwMGJlMWQ3IF0NCm5jZwkyMAlzaXplCTgx OTU4MAlibG9ja3MJMTc5NDIzMQ0KYnNpemUJMTYzODQJc2hpZnQJMTQJbWFz awkweGZmZmZjMDAwDQpmc2l6ZQkyMDQ4CXNoaWZ0CTExCW1hc2sJMHhmZmZm ZjgwMA0KZnJhZwk4CXNoaWZ0CTMJZnNidG9kYgkyDQptaW5mcmVlCTglCW9w dGltCXRpbWUJc3ltbGlua2xlbiA2MA0KbWF4YnBnCTQwOTYJbWF4Y29udGln IDcJY29udGlnc3Vtc2l6ZSA3DQpuYmZyZWUJMTE0MjEJbmRpcgkxOTE0Nglu aWZyZWUJMjcyODE2CW5mZnJlZQk2NzY5Mw0KY3BnCTg5CWJwZwkxMTM5Mglm cGcJOTExMzYJaXBnCTIyNTI4DQpuaW5kaXIJNDA5Nglpbm9wYgkxMjgJbnNw Zgk0CW1heGZpbGVzaXplCTExMjYxNzQ4NTIwNTUwMzkNCnNic2l6ZQkyMDQ4 CWNnc2l6ZQkxNjM4NAljZ29mZnNldCAxMDI0CWNnbWFzawkweGZmZmZmZmZm DQpjc2FkZHIJMTQzMgljc3NpemUJMjA0OA0Kcm90ZGVsYXkgMG1zCXJwcwk2 MAl0cmFja3NrZXcgMAlpbnRlcmxlYXZlIDENCm5zZWN0CTQwOTYJbnBzZWN0 CTQwOTYJc3BjCTQwOTYNCnNibGtubwk4CWNibGtubwkxNglpYmxrbm8JMjQJ ZGJsa25vCTE0MzINCmNncm90b3IJMAlmbW9kCTAJcm9ubHkJMAljbGVhbgkx DQpmbGFncwlzb2Z0LXVwZGF0ZXMgDQoNCmNzW10uY3NfKG5iZnJlZSxuZGly LG5pZnJlZSxuZmZyZWUpOg0KCSgwLDE0ODIsNzQ1OSw4OTcpICgzMSwxODA2 LDcwODksNjg5NSkgKDEzNCwxNTQ1LDkxNjIsODI2NikgKDMzNiwyMTksMTky NTcsODY0NSkgDQoJKDEwNiwyNzksMTgxOTMsNzkyMCkgKDE1NjksNjIwLDE3 NDUxLDI4ODQpICgxMDYyLDk2NiwxMjQyMiwzNzQyKSAoMjI2NiwxODYsMjE4 OTYsMjU3MCkgDQoJKDEyMywyOTcwLDE5NjUsNTQ3MykgKDEwMCw1MTYsMTY5 MDYsNjEyNikgKDE2MjAsODU4LDEzMjg4LDEyNTcpICgzOTUyLDEwMjksMTQw NjUsMTU2MCkgDQoJKDYsMTY3OCw3OTQ4LDM0NTEpICg3NiwyMTcyLDc4OTQs MjM0NCkgKDAsOTMwLDg0ODMsMykgKDAsMTk0LDE4ODczLDMxNTcpIA0KCSg0 MCw1MzcsMTQzMTUsMjU0KSAoMCw3ODksMTQzOTMsNjcpICgwLDIwMywyMDY5 NiwxMDAwKSAoMCwxNjcsMjEwNjEsMTE4MikgDQpjeWxpbmRlcnMgaW4gbGFz dCBncm91cCA4OQ0KYmxvY2tzIGluIGxhc3QgZ3JvdXAgMTEzMTENCg0KDQpj ZyAwOg0KbWFnaWMJOTAyNTUJdGVsbAk4MDAwCXRpbWUJV2VkIERlYyAxOCAx Mjo1OTowNyAyMDAyDQpjZ3gJMAluY3lsCTg5CW5pYmxrCTIyNTI4CW5kYmxr CTkxMTM2DQpuYmZyZWUJMAluZGlyCTE0ODIJbmlmcmVlCTc0NTkJbmZmcmVl CTg5Nw0Kcm90b3IJOTAwMDgJaXJvdG9yCTQwMTYJZnJvdG9yCTUwMzYwDQpm cnN1bQk0MwkzNQkyNAkzMgkyOAkyNQk0Mg0Kc3VtIG9mIGZyc3VtOiA4OTcN CmNsdXN0ZXJzIDEtNjoJMAkwCTAJMAkwCTANCmNsdXN0ZXJzIHNpemUgNyBh bmQgb3ZlcjogMA0KY2x1c3RlcnMgZnJlZToJDQppbm9kZXMgdXNlZDoJMC00 MDE1LCA0MDE3LTYyNDQsIDYyNTItNjI1NSwgNjI1OC02Mjc5LCA2MjgxLCA2 Mjg0LTY5MTcsDQoJNjkxOS02OTM3LCA2OTM5LTcwMDcsIDcwMjYsIDcwMzMs IDcwNDIsIDcwNDUsDQoJNzA0Ny03MDU0LCA3MDU2LTcwNTcsIDcwNjQtNzA2 NSwgNzA2OCwgNzA4MSwgNzA4NCwNCgk3MDkwLTcwOTIsIDcxMDEtNzEwMiwg NzEwOS03MTEyLCA3MTQ2LCA3MTQ4LCA3MTU0LTcxNTYsDQoJNzE2OSwgNzE3 NC03MTc2LCA3MTc4LCA3MTg4LCA3MTkwLTcxOTMsIDcyMDAsDQoJNzIwMi03 MjA0LCA3MjEzLCA3MjIxLCA3MjI4LTc4MjEsIDc4MjYsIDc4MzUtNzgzOSwN Cgk3ODQ0LTc4NDUsIDc4NDgtNzg0OSwgNzg1MiwgNzg1NywgNzg3MCwgNzg3 Ni03ODc4LA0KCTc4ODMtNzg4NiwgNzg4OCwgNzg5OC04MDQyLCA4MDQ3LCA4 MDQ5LTgxMjAsIDgxMjIsDQoJODEzNS04NDQyLCA4NDQ0LTg0NDYsIDg0NDgt ODQ1MCwgODQ1My04NDU5LCA4NDYzLCA4NDY3LA0KCTg0NzEtODUwNiwgODUw OS04NTU2LCA4NTU5LTg5NzQsIDg5NzYtODk5MSwgODk5NC05MDk2LCA5MDk4 LTkxMTAsDQoJOTExMi05MTI1LCA5MTI3LTkxMjgsIDkxMzAtOTE1MCwgOTE1 Mi05MTU0LCA5MTU2LTkxODEsIDkxODMtOTE5NSwNCg== --0-1861886173-1040247398=:53677-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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