From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from plane.gmane.org ([80.91.229.3]:51514 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751474Ab2HZF1Q (ORCPT ); Sun, 26 Aug 2012 01:27:16 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1T5VNR-00086I-Qx for linux-btrfs@vger.kernel.org; Sun, 26 Aug 2012 07:27:13 +0200 Received: from p4fe47dd4.dip.t-dialin.net ([79.228.125.212]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 26 Aug 2012 07:27:13 +0200 Received: from ml by p4fe47dd4.dip.t-dialin.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 26 Aug 2012 07:27:13 +0200 To: linux-btrfs@vger.kernel.org From: Alfred Zastrow Subject: Re: BTRFS filesystem is not mountable after crash Date: Sun, 26 Aug 2012 07:27:02 +0200 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed In-Reply-To: Sender: linux-btrfs-owner@vger.kernel.org List-ID: Am 20.08.2012 23:42, schrieb Alfred Zastrow: > Hi devs, > > I've a serious problem with my 160 gb SSD which is not mountable > anymore. A backup for most of the date is there, but not for the latest > ones. :-( > The crash occurred during a download (system hangs totaly, hard reset) > with a Fedora 3.5.2 linux kernel. The btrfs partition was working quite > good for about one year. > > here is a try to attach the device and mount manually: > ----------------------------------------------------- > [ 3123.582387] sd 1:0:0:0: Attached scsi generic sg2 type 0 > [ 3123.582833] sdb: sdb1 > [ 3123.583085] sd 1:0:0:0: [sdb] Attached SCSI disk > [ 3169.789800] Btrfs loaded > [ 3169.791156] device fsid 4d00f0e6-e9d7-42d9-8514-827d8f01f7d3 devid 1 > transid 192331 /dev/sdb1 > [ 3169.796334] btrfs: bdev /dev/sdb1 errs: wr 0, rd 0, flush 0, corrupt > 16, gen 0 > [ 3169.840296] Btrfs detected SSD devices, enabling SSD mode > [ 3169.841541] btrfs bad tree block start 0 29450240 > [ 3169.841545] btrfs: bdev /dev/sdb1 errs: wr 0, rd 0, flush 0, corrupt > 17, gen 0 > [ 3169.841605] btrfs bad tree block start 0 29450240 > [ 3169.841609] btrfs: bdev /dev/sdb1 errs: wr 0, rd 0, flush 0, corrupt > 18, gen 0 > [ 3123.582387] sd 1:0:0:0: Attached scsi generic sg2 type 0 > [ 3123.582833] sdb: sdb1 > [ 3123.583085] sd 1:0:0:0: [sdb] Attached SCSI disk > [ 3169.789800] Btrfs loaded > [ 3169.791156] device fsid 4d00f0e6-e9d7-42d9-8514-827d8f01f7d3 devid 1 > transid 192331 /dev/sdb1 > [ 3169.796334] btrfs: bdev /dev/sdb1 errs: wr 0, rd 0, flush 0, corrupt > 16, gen 0 > [ 3169.840296] Btrfs detected SSD devices, enabling SSD mode > [ 3169.841541] btrfs bad tree block start 0 29450240 > [ 3169.841545] btrfs: bdev /dev/sdb1 errs: wr 0, rd 0, flush 0, corrupt > 17, gen 0 > [ 3169.841605] btrfs bad tree block start 0 29450240 > [ 3169.841609] btrfs: bdev /dev/sdb1 errs: wr 0, rd 0, flush 0, corrupt > 18, gen 0 > > > the latest btrfs-restore from Chris' GIT (same result with Josefs restore > ---------------------------------- > [root@z2 btrfs-progs-chris]# ./btrfs-restore -i /dev/sdb1 /mnt > Root objectid is 5 > Check tree block failed, want=29450240, have=0 > Check tree block failed, want=29450240, have=0 > Check tree block failed, want=29450240, have=0 > Check tree block failed, want=29450240, have=0 > Check tree block failed, want=29450240, have=0 > read block failed check_tree_block > Error searching -5 > > > > > btrfsck (latest from Chris) shows a lot of these mismatches and crashes > at the end :-( > ----------------------------------------------------------- > [...] > backpointer mismatch on [152106881024 12288] > owner ref check failed [152106881024 12288] > ref mismatch on [152106893312 12288] extent item 1, found 0 > Incorrect local backref count on 152106893312 root 5 owner 267 offset > 34226176 found 0 wanted 1 back 0x57024e0 > backpointer mismatch on [152106893312 12288] > owner ref check failed [152106893312 12288] > ref mismatch on [152106905600 12288] extent item 1, found 0 > Incorrect local backref count on 152106905600 root 5 owner 267 offset > 34623488 found 0 wanted 1 back 0x57025c0 > backpointer mismatch on [152106905600 12288] > owner ref check failed [152106905600 12288] > ref mismatch on [152106917888 12288] extent item 1, found 0 > Incorrect local backref count on 152106917888 root 5 owner 267 offset > 34672640 found 0 wanted 1 back 0x57026a0 > backpointer mismatch on [152106917888 12288] > owner ref check failed [152106917888 12288] > ref mismatch on [152106930176 16384] extent item 1, found 0 > Incorrect local backref count on 152106930176 root 5 owner 267 offset > 34734080 found 0 wanted 1 back 0x5702780 > backpointer mismatch on [152106930176 16384] > owner ref check failed [152106930176 16384] > ref mismatch on [152106946560 24576] extent item 1, found 0 > Incorrect local backref count on 152106946560 root 5 owner 267 offset > 36159488 found 0 wanted 1 back 0x5702860 > backpointer mismatch on [152106946560 24576] > owner ref check failed [152106946560 24576] > ref mismatch on [152106971136 28672] extent item 1, found 0 > Incorrect local backref count on 152106971136 root 5 owner 267 offset > 37212160 found 0 wanted 1 back 0x5702940 > backpointer mismatch on [152106971136 28672] > owner ref check failed [152106971136 28672] > ref mismatch on [152106999808 12288] extent item 1, found 0 > Incorrect local backref count on 152106999808 root 5 owner 267 offset > 37679104 found 0 wanted 1 back 0x5702a20 > backpointer mismatch on [152106999808 12288] > owner ref check failed [152106999808 12288] > ref mismatch on [152107012096 8192] extent item 1, found 0 > Incorrect local backref count on 152107012096 root 5 owner 267 offset > 37707776 found 0 wanted 1 back 0x5702b00 > backpointer mismatch on [152107012096 8192] > owner ref check failed [152107012096 8192] > ref mismatch on [152107020288 36864] extent item 1, found 0 > Incorrect local backref count on 152107020288 root 5 owner 267 offset > 37777408 found 0 wanted 1 back 0x5702be0 > backpointer mismatch on [152107020288 36864] > owner ref check failed [152107020288 36864] > ref mismatch on [152107057152 24576] extent item 1, found 0 > Incorrect local backref count on 152107057152 root 5 owner 267 offset > 38776832 found 0 wanted 1 back 0x5702cc0 > backpointer mismatch on [152107057152 24576] > owner ref check failed [152107057152 24576] > ref mismatch on [152107081728 8192] extent item 1, found 0 > Incorrect local backref count on 152107081728 root 5 owner 267 offset > 39444480 found 0 wanted 1 back 0x5702da0 > backpointer mismatch on [152107081728 8192] > owner ref check failed [152107081728 8192] > ref mismatch on [152107089920 16384] extent item 1, found 0 > Incorrect local backref count on 152107089920 root 5 owner 267 offset > 39817216 found 0 wanted 1 back 0x5702e80 > backpointer mismatch on [152107089920 16384] > owner ref check failed [152107089920 16384] > ref mismatch on [152107126784 12288] extent item 1, found 0 > Incorrect local backref count on 152107126784 root 5 owner 267 offset > 41345024 found 0 wanted 1 back 0x5702f60 > backpointer mismatch on [152107126784 12288] > owner ref check failed [152107126784 12288] > ref mismatch on [152107139072 4096] extent item 1, found 0 > Incorrect local backref count on 152107139072 root 5 owner 267 offset > 41631744 found 0 wanted 1 back 0x5706510 > backpointer mismatch on [152107139072 4096] > owner ref check failed [152107139072 4096] > ref mismatch on [152107241472 49152] extent item 1, found 0 > Incorrect local backref count on 152107241472 root 5 owner 267 offset > 44765184 found 0 wanted 1 back 0x57065f0 > backpointer mismatch on [152107241472 49152] > owner ref check failed [152107241472 49152] > Errors found in extent allocation tree > checking fs roots > Check tree block failed, want=29450240, have=0 > Check tree block failed, want=29450240, have=0 > Check tree block failed, want=29450240, have=0 > Check tree block failed, want=29450240, have=0 > Check tree block failed, want=29450240, have=0 > read block failed check_tree_block > Speicherzugriffsfehler (Speicherabzug geschrieben) > > > find-root from Joseph: > ----------------------- > [root@z2 btrfs-progs-josef]# ./find-root /dev/sdb1 > Super think's the tree root is at 32030720, chunk root 20971520 > Generation: 192331 Root bytenr: 29446144 Root objectid: 2 > Generation: 192331 Root bytenr: 32464896 Root objectid: 4 > Generation: 192331 Root bytenr: 29360128 Root objectid: 5 > Generation: 192331 Root bytenr: 29581312 Root objectid: 7 > Generation: 192331 Root bytenr: 29380608 Root objectid: > 18446744073709551607 > Well block 29437952 seems great, but generation doesn't match, > have=192331, want=192333 > Generation: 192332 Root bytenr: 30793728 Root objectid: 2 > Generation: 192332 Root bytenr: 31121408 Root objectid: 4 > Generation: 192332 Root bytenr: 29360128 Root objectid: 5 > Generation: 192332 Root bytenr: 29581312 Root objectid: 7 > Generation: 192332 Root bytenr: 29380608 Root objectid: > 18446744073709551607 > Well block 30732288 seems great, but generation doesn't match, > have=192332, want=192333 > Generation: 192333 Root bytenr: 32432128 Root objectid: 2 > Generation: 192333 Root bytenr: 31121408 Root objectid: 4 > Generation: 192333 Root bytenr: 29360128 Root objectid: 5 > Generation: 192333 Root bytenr: 29581312 Root objectid: 7 > Generation: 192333 Root bytenr: 29380608 Root objectid: > 18446744073709551607 > Found tree root at 32030720 > > > debug-tree shows the same problematic block on the console, the > generated list is written up to the end without crash > ------------------------------------------- > [root@z2 btrfs-progs-chris]# ./btrfs-debug-tree /dev/sdb1 >123 > Check tree block failed, want=29450240, have=0 > Check tree block failed, want=29450240, have=0 > Check tree block failed, want=29450240, have=0 > Check tree block failed, want=29450240, have=0 > Check tree block failed, want=29450240, have=0 > read block failed check_tree_block > failed to read 29450240 in tree 5 > > > > > [...] > > 310797516/296M 100% > item 0 key (EXTENT_CSUM EXTENT_CSUM 156340977664) itemoff 563 > itemsize 3432 > extent csum item > leaf 75816960 items 2 free space 2081 generation 190286 owner 7 > fs uuid 4d00f0e6-e9d7-42d9-8514-827d8f01f7d3 > chunk uuid 7e64d936-3686-4e79-890e-aa9a090eb95d > item 0 key (EXTENT_CSUM EXTENT_CSUM 156344492032) itemoff 2643 > itemsize 1352 > extent csum item > item 1 key (EXTENT_CSUM EXTENT_CSUM 156345876480) itemoff 2131 > itemsize 512 > extent csum item > leaf 75796480 items 1 free space 178 generation 190286 owner 7 > fs uuid 4d00f0e6-e9d7-42d9-8514-827d8f01f7d3 > chunk uuid 7e64d936-3686-4e79-890e-aa9a090eb95d > item 0 key (EXTENT_CSUM EXTENT_CSUM 156346400768) itemoff 203 > itemsize 3792 > extent csum item > data reloc tree key (DATA_RELOC_TREE ROOT_ITEM 0) > leaf 29380608 items 2 free space 3773 generation 5 owner > 18446744073709551607 > fs uuid 4d00f0e6-e9d7-42d9-8514-827d8f01f7d3 > chunk uuid 7e64d936-3686-4e79-890e-aa9a090eb95d > item 0 key (256 INODE_ITEM 0) itemoff 3835 itemsize 160 > inode generation 4 transid 0 size 0 block group 0 mode > 40555 links 1 > item 1 key (256 INODE_REF 256) itemoff 3823 itemsize 12 > inode ref index 0 namelen 2 name: .. > total bytes 160039960576 > bytes used 103460102144 > uuid 4d00f0e6-e9d7-42d9-8514-827d8f01f7d3 > Btrfs Btrfs v0.19 > > > > Is there any hope for me? > > best regards > Alfred > > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Hello, has realy nobody a hint for me? br Alfred