BTRFS filesystem is not mountable after crash

DISCUSSION Alfred Zastrow 3 participants 6 messages Aug 20, 2012 – Oct 14, 2012 Btrfs file system

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Alfred Zastrow

author

2012-08-20 21:45 UTC #0 lore raw

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

Alfred Zastrow

author

2012-08-26 05:27 UTC #1 lore raw

Am 20.08.2012 23:42, schrieb Alfred Zastrow:

Quoted 234 lines

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?

Quoted 8 lines

best regards
Alfred
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Hello,

has realy nobody a hint for me?

br
Alfred

Liu Bo

2012-08-26 06:17 UTC #2 lore raw

Quoted 7 lines · Alfred Zastrow

Quoted 1 line
Hello,
has realy nobody a hint for me?

Is compiling chris's latest for-linus helpful?

git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs.git

thanks,
liubo

Quoted 2 lines

br
Alfred

Alfred Zastrow

author

2012-10-13 17:51 UTC #3 lore raw

Am 26.08.2012 08:17, schrieb Liu Bo:

Quoted 5 lines · Alfred Zastrow

Hello,

Quoted 8 lines

has realy nobody a hint for me?
Is compiling chris's latest for-linus helpful?
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs.git
thanks,
liubo

Hi dev's

I was not able to install chris's latest for-linus under F17, but I tried with the latest 3.6.1-Kernel with was recently released. Same shit.. :-(

[root@z2 alfred]# mount /dev/sdb1 /mnt -o recovery,ro
mount: mount /dev/sdb1 on /mnt failed: Veraltete NFS-Dateizugriffsnummer

[root@z2 alfred]# dmesg

[...]

[41005.694357] device fsid 4d00f0e6-e9d7-42d9-8514-827d8f01f7d3 devid 1 transid 192347 /dev/sdb1
[41005.696173] btrfs: enabling auto recovery
[41005.698539] btrfs: mismatching generation and generation_v2 found in root item. This root was probably mounted with an older kernel. Resetting all new fields.
[41005.698732] btrfs: mismatching generation and generation_v2 found in root item. This root was probably mounted with an older kernel. Resetting all new fields.
[41005.699307] btrfs: bdev /dev/sdb1 errs: wr 0, rd 0, flush 0, corrupt 20, gen 0
[41005.741978] Btrfs detected SSD devices, enabling SSD mode
[41005.742459] btrfs bad tree block start 0 29450240
[41005.742514] btrfs bad tree block start 0 29450240

All the other tools (btrfs-restore, btrfsck, restore from Josef) gave me the same results as I have written in my 1st mail.

Sadly I have realized, that some of my vacation pictures are still on the SSD - without backup... :-(

Best regards
Alfred

cwillu

2012-10-13 22:56 UTC #4 lore raw

Quoted 17 lines · Alfred Zastrow

Am 26.08.2012 08:17, schrieb Liu Bo:
Quoted 5 lines · Alfred Zastrow
Hello,
Quoted 8 lines
has realy nobody a hint for me?
Is compiling chris's latest for-linus helpful?
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs.git
thanks,
liubo

Quoted 5 lines

Hi dev's
I was not able to install chris's latest for-linus under F17, but I tried with the latest 3.6.1-Kernel with was recently released.
Same shit.. :-(

Chris's for-linus is currently all the btrfs changes that will be going into 3.7. 3.6.1 won't likely have any of them.

Alfred Zastrow

author

2012-10-14 15:48 UTC #5 lore raw

Am 14.10.2012 00:56, schrieb cwillu:

Quoted 1 line

Chris's for-linus is currently all the btrfs changes that will be going into 3.7. 3.6.1 won't likely have any of them.

Hi,

same thing, no success :-(

I've checked out this tree:

git clone git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs.git

The version show me "3.6.0+"

I took my original Fedora Kernel-config to compile (btrfs as module)

[root@z2 alfred]# modinfo btrfs

filename:       /lib/modules/3.6.0+/kernel/fs/btrfs/btrfs.ko
license:        GPL
alias:          devname:btrfs-control
alias:          char-major-10-234
depends:        libcrc32c,zlib_deflate
intree:         Y
vermagic:       3.6.0+ SMP mod_unload

Result:

[  281.637120] Btrfs loaded
[  305.059449] device fsid 4d00f0e6-e9d7-42d9-8514-827d8f01f7d3 devid 1 transid 192347 /dev/sdc1
[  305.060341] btrfs: enabling auto recovery
[  305.062283] btrfs: mismatching generation and generation_v2 found in root item. This root was probably mounted with an older kernel. Resetting all new fields.
[  305.062496] btrfs: mismatching generation and generation_v2 found in root item. This root was probably mounted with an older kernel. Resetting all new fields.
[  305.063114] btrfs: bdev /dev/sdc1 errs: wr 0, rd 0, flush 0, corrupt 20, gen 0
[  305.107040] Btrfs detected SSD devices, enabling SSD mode
[  305.107497] btrfs bad tree block start 0 29450240
[  305.107557] btrfs bad tree block start 0 29450240

Do you have an other hint for me?

best regards
Alfred