Re: errors reported by btrfs-check
On 2018/10/12 下午6:35, Jürgen Herrmann wrote: > Am 12.10.2018 10:19, schrieb Qu Wenruo: > > [snip] > >> Please run the following command: >> >> # btrfs ins dump-tree --follow -b 166456229888 >> >> It could be caused by the fact that btrfs-progs --repair doesn't handle >> log tree well. >> >> If that's the case, "btrfs rescue zero-log" should help. >> >> But anyway, feel free to re-create the fs if zero-log doesn't help. >> >> Thanks, >> Qu > > First of all, thanks for your help! > > Did that: > > root@mint:/home/mint# /tmp/btrfs ins dump-tree --follow -b 166456229888 > /dev/mapper/sda3c > /tmp/btrfs-ins.txt > parent transid verify failed on 166475366400 wanted 127054 found 127060 > Ignoring transid failure > WARNING: eb corrupted: parent bytenr 166456229888 slot 22 level 2 child > bytenr 166475366400 level has 0 expect 1, skipping the slot > > The created btrfs-ins.txt is ~300MB in size, so i did not attach that > here. do you need id? then I can upload it to my owncloud and post a > link here. > > after that i tried to zero the log: > parent transid verify failed on 166475366400 wanted 127054 found 127060 > parent transid verify failed on 166475366400 wanted 127054 found 127060 > Ignoring transid failure > ERROR: child eb corrupted: parent bytenr=166456229888 item=22 parent > level=2 child level=0 > ERROR: could not open ctree > > mounting is still not possible: > [ 2726.355134] BTRFS info (device dm-0): disk space caching is enabled > [ 2726.355138] BTRFS info (device dm-0): has skinny extents > [ 2726.395638] BTRFS error (device dm-0): parent transid verify failed > on 166475366400 wanted 127054 found 127060 > [ 2726.395647] BTRFS error (device dm-0): failed to read block groups: -5 This means the extent tree is corrupted. This is not a good thing at all. Please go ahead and recreate the fs. I'm not sure how is --repair contribute to this bug in current stage. The biggest problem is, after your first --repair attempt, it doesn't report any extent tree corruption. > [ 2726.451907] BTRFS error (device dm-0): open_ctree failed > > Anything left to try? No, please go ahead to do what you need to. Thanks, Qu > > Best regards, > Jürgen signature.asc Description: OpenPGP digital signature
Re: errors reported by btrfs-check
Am 12.10.2018 10:19, schrieb Qu Wenruo: [snip] Please run the following command: # btrfs ins dump-tree --follow -b 166456229888 It could be caused by the fact that btrfs-progs --repair doesn't handle log tree well. If that's the case, "btrfs rescue zero-log" should help. But anyway, feel free to re-create the fs if zero-log doesn't help. Thanks, Qu First of all, thanks for your help! Did that: root@mint:/home/mint# /tmp/btrfs ins dump-tree --follow -b 166456229888 /dev/mapper/sda3c > /tmp/btrfs-ins.txt parent transid verify failed on 166475366400 wanted 127054 found 127060 Ignoring transid failure WARNING: eb corrupted: parent bytenr 166456229888 slot 22 level 2 child bytenr 166475366400 level has 0 expect 1, skipping the slot The created btrfs-ins.txt is ~300MB in size, so i did not attach that here. do you need id? then I can upload it to my owncloud and post a link here. after that i tried to zero the log: parent transid verify failed on 166475366400 wanted 127054 found 127060 parent transid verify failed on 166475366400 wanted 127054 found 127060 Ignoring transid failure ERROR: child eb corrupted: parent bytenr=166456229888 item=22 parent level=2 child level=0 ERROR: could not open ctree mounting is still not possible: [ 2726.355134] BTRFS info (device dm-0): disk space caching is enabled [ 2726.355138] BTRFS info (device dm-0): has skinny extents [ 2726.395638] BTRFS error (device dm-0): parent transid verify failed on 166475366400 wanted 127054 found 127060 [ 2726.395647] BTRFS error (device dm-0): failed to read block groups: -5 [ 2726.451907] BTRFS error (device dm-0): open_ctree failed Anything left to try? Best regards, Jürgen -- Jürgen Herrmann https://t-5.eu ALbertstraße 2 94327 Bogen
Re: errors reported by btrfs-check
[snip] > > Hi there! > > I ran btrfs check --repair on the filesystem. I dont' have this log > anymore, > as it was then sitting on the repaired fs), which is now dead. > after repairing it I could still mount the fs. > > as my btrfs send problem still persists (another thread), I decided to > run check > again... this time i saved the logs to a different partition as it was more > convenient at that time. here's the output: > > Checking filesystem on /dev/mapper/sda3c > UUID: a914c141-72bf-448b-847f-d64ee82d8b7b > [1/7] checking root items > Fixed 0 roots. > [2/7] checking extents > No device size related problem found > [3/7] checking free space cache > cache and super generation don't match, space cache will be invalidated > [4/7] checking fs roots > root 1387 inode 3082380 errors 100, file extent discount > Found file extent holes: > start: 0, len: 233472 > ERROR: errors found in fs roots > found 470636822528 bytes used, error(s) found > total csum bytes: 452176524 > total tree bytes: 4579753984 > total fs tree bytes: 3822665728 > total extent tree bytes: 245301248 > btree space waste bytes: 847442809 > file data blocks allocated: 9670623588352 > referenced 932405829632 > > I did a repair once again but the error did not go away. > > after rebooting the fs is no longer mountable: > mint@mint:/tmp$ sudo /tmp/btrfs check /dev/mapper/sda3c > Opening filesystem to check... > parent transid verify failed on 166475366400 wanted 127054 found 127060 > parent transid verify failed on 166475366400 wanted 127054 found 127060 > Ignoring transid failure > ERROR: child eb corrupted: parent bytenr=166456229888 item=22 parent > level=2 child level=0 Please run the following command: # btrfs ins dump-tree --follow -b 166456229888 It could be caused by the fact that btrfs-progs --repair doesn't handle log tree well. If that's the case, "btrfs rescue zero-log" should help. But anyway, feel free to re-create the fs if zero-log doesn't help. Thanks, Qu > ERROR: cannot open file system > > If anyone wants me to help debugging this issue you will have to respond > fast, because i need my laptop back in working condition and will soon > nuke the fs. after all I will try one more time with a freshly formatted > btrfs partition. if i still get these kinds of errors i will have to > move back to > the tried and true xfs :/ > > best regards, > Jürgen signature.asc Description: OpenPGP digital signature
Re: errors reported by btrfs-check
Am 12.10.2018 01:56, schrieb Qu Wenruo: On 2018/10/12 上午4:30, Jürgen Herrmann wrote: Hi! I just did a btrfs check on my laptop's btrfs filesystem while i was on the usb stick rescue system. the following errors where reported: root@mint:/home/mint# btrfs check /dev/mapper/sda3crypt Checking filesystem on /dev/mapper/sda3crypt UUID: a914c141-72bf-448b-847f-d64ee82d8b7b checking extents checking free space cache checking fs roots root 258 inode 3082368 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 258 inode 3082370 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 258 inode 3082371 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 258 inode 3082373 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 258 inode 3082414 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 258 inode 3082415 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 258 inode 3082421 errors 100, file extent discount Found file extent holes: start: 0, len: 4096 root 1387 inode 3082368 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1387 inode 3082370 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1387 inode 3082371 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1387 inode 3082372 errors 100, file extent discount Found file extent holes: start: 8192, len: 4096 start: 16384, len: 4096 start: 24576, len: 4096 start: 32768, len: 4096 start: 40960, len: 4096 start: 49152, len: 20480 start: 73728, len: 4096 start: 81920, len: 4096 start: 90112, len: 8192 root 1387 inode 3082373 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1387 inode 3082374 errors 100, file extent discount Found file extent holes: start: 8192, len: 4096 start: 16384, len: 20480 start: 40960, len: 12288 start: 57344, len: 4096 start: 65536, len: 8192 root 1387 inode 3082380 errors 100, file extent discount Found file extent holes: start: 0, len: 233472 root 1387 inode 3082386 errors 100, file extent discount Found file extent holes: start: 0, len: 4096 root 1387 inode 3082398 errors 100, file extent discount Found file extent holes: start: 20480, len: 16384 root 1387 inode 3082414 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1387 inode 3082415 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1387 inode 3082421 errors 100, file extent discount Found file extent holes: start: 0, len: 4096 root 1391 inode 3082368 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1391 inode 3082370 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1391 inode 3082371 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1391 inode 3082373 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1391 inode 3082386 errors 100, file extent discount Found file extent holes: start: 0, len: 4096 root 1391 inode 3082414 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1391 inode 3082415 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1391 inode 3082421 errors 100, file extent discount Found file extent holes: start: 0, len: 4096 root 1394 inode 3082368 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1394 inode 3082370 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1394 inode 3082371 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1394 inode 3082373 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1394 inode 3082386 errors 100, file extent discount Found file extent holes: start: 0, len: 4096 root 1394 inode 3082414 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1394 inode 3082415 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1394 inode 3082421 errors 100, file extent discount Found file extent holes: start: 0, len: 4096 ERROR: errors found in fs roots found 469458231296 bytes used, error(s) found total csum bytes: 451180560 total tree bytes: 4558831616 total fs tree bytes: 3802955776 total extent tree bytes: 245055488 btree space waste bytes: 842802897 file data blocks allocated: 9656815640576 referenced 929225080832 Scrub completes ok though. I'm prepared to wipe the fs if needed, more than one backup is ready :) No need. File extent discount is not a big problem. It only means btrfs lacks some hole file
Re: errors reported by btrfs-check
On 2018/10/12 上午4:30, Jürgen Herrmann wrote: > Hi! > > I just did a btrfs check on my laptop's btrfs filesystem while i was > on the usb stick rescue system. > > the following errors where reported: > root@mint:/home/mint# btrfs check /dev/mapper/sda3crypt > Checking filesystem on /dev/mapper/sda3crypt > UUID: a914c141-72bf-448b-847f-d64ee82d8b7b > checking extents > checking free space cache > checking fs roots > root 258 inode 3082368 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 258 inode 3082370 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 258 inode 3082371 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 258 inode 3082373 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 258 inode 3082414 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 258 inode 3082415 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 258 inode 3082421 errors 100, file extent discount > Found file extent holes: > start: 0, len: 4096 > root 1387 inode 3082368 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1387 inode 3082370 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1387 inode 3082371 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1387 inode 3082372 errors 100, file extent discount > Found file extent holes: > start: 8192, len: 4096 > start: 16384, len: 4096 > start: 24576, len: 4096 > start: 32768, len: 4096 > start: 40960, len: 4096 > start: 49152, len: 20480 > start: 73728, len: 4096 > start: 81920, len: 4096 > start: 90112, len: 8192 > root 1387 inode 3082373 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1387 inode 3082374 errors 100, file extent discount > Found file extent holes: > start: 8192, len: 4096 > start: 16384, len: 20480 > start: 40960, len: 12288 > start: 57344, len: 4096 > start: 65536, len: 8192 > root 1387 inode 3082380 errors 100, file extent discount > Found file extent holes: > start: 0, len: 233472 > root 1387 inode 3082386 errors 100, file extent discount > Found file extent holes: > start: 0, len: 4096 > root 1387 inode 3082398 errors 100, file extent discount > Found file extent holes: > start: 20480, len: 16384 > root 1387 inode 3082414 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1387 inode 3082415 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1387 inode 3082421 errors 100, file extent discount > Found file extent holes: > start: 0, len: 4096 > root 1391 inode 3082368 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1391 inode 3082370 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1391 inode 3082371 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1391 inode 3082373 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1391 inode 3082386 errors 100, file extent discount > Found file extent holes: > start: 0, len: 4096 > root 1391 inode 3082414 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1391 inode 3082415 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1391 inode 3082421 errors 100, file extent discount > Found file extent holes: > start: 0, len: 4096 > root 1394 inode 3082368 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1394 inode 3082370 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1394 inode 3082371 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1394 inode 3082373 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1394 inode 3082386 errors 100, file extent discount > Found file extent holes: > start: 0, len: 4096 > root 1394 inode 3082414 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1394 inode 3082415 errors 100, file extent discount > Found file extent holes: > start: 0, len: 8192 > root 1394 inode 3082421 errors 100, file extent discount > Found file extent holes: > start: 0, len: 4096 > ERROR: errors found in fs roots > found 469458231296 bytes used, error(s) found > total csum bytes: 451180560 > total tree bytes: 4558831616 > total fs tree bytes: 3802955776 > total extent tree bytes: 245055488 > btree space waste bytes: 842802897 > file data blocks allocated:
Re: errors reported by btrfs-check
4.17.1 compiled from source. Best regards, Jürgen Am 12. Oktober 2018 00:36:26 schrieb Chris Murphy : What version of btrfs-progs? Mit AquaMail Android https://www.mobisystems.com/aqua-mail
Re: errors reported by btrfs-check
What version of btrfs-progs?
errors reported by btrfs-check
Hi! I just did a btrfs check on my laptop's btrfs filesystem while i was on the usb stick rescue system. the following errors where reported: root@mint:/home/mint# btrfs check /dev/mapper/sda3crypt Checking filesystem on /dev/mapper/sda3crypt UUID: a914c141-72bf-448b-847f-d64ee82d8b7b checking extents checking free space cache checking fs roots root 258 inode 3082368 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 258 inode 3082370 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 258 inode 3082371 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 258 inode 3082373 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 258 inode 3082414 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 258 inode 3082415 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 258 inode 3082421 errors 100, file extent discount Found file extent holes: start: 0, len: 4096 root 1387 inode 3082368 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1387 inode 3082370 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1387 inode 3082371 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1387 inode 3082372 errors 100, file extent discount Found file extent holes: start: 8192, len: 4096 start: 16384, len: 4096 start: 24576, len: 4096 start: 32768, len: 4096 start: 40960, len: 4096 start: 49152, len: 20480 start: 73728, len: 4096 start: 81920, len: 4096 start: 90112, len: 8192 root 1387 inode 3082373 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1387 inode 3082374 errors 100, file extent discount Found file extent holes: start: 8192, len: 4096 start: 16384, len: 20480 start: 40960, len: 12288 start: 57344, len: 4096 start: 65536, len: 8192 root 1387 inode 3082380 errors 100, file extent discount Found file extent holes: start: 0, len: 233472 root 1387 inode 3082386 errors 100, file extent discount Found file extent holes: start: 0, len: 4096 root 1387 inode 3082398 errors 100, file extent discount Found file extent holes: start: 20480, len: 16384 root 1387 inode 3082414 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1387 inode 3082415 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1387 inode 3082421 errors 100, file extent discount Found file extent holes: start: 0, len: 4096 root 1391 inode 3082368 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1391 inode 3082370 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1391 inode 3082371 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1391 inode 3082373 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1391 inode 3082386 errors 100, file extent discount Found file extent holes: start: 0, len: 4096 root 1391 inode 3082414 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1391 inode 3082415 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1391 inode 3082421 errors 100, file extent discount Found file extent holes: start: 0, len: 4096 root 1394 inode 3082368 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1394 inode 3082370 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1394 inode 3082371 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1394 inode 3082373 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1394 inode 3082386 errors 100, file extent discount Found file extent holes: start: 0, len: 4096 root 1394 inode 3082414 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1394 inode 3082415 errors 100, file extent discount Found file extent holes: start: 0, len: 8192 root 1394 inode 3082421 errors 100, file extent discount Found file extent holes: start: 0, len: 4096 ERROR: errors found in fs roots found 469458231296 bytes used, error(s) found total csum bytes: 451180560 total tree bytes: 4558831616 total fs tree bytes: 3802955776 total extent tree bytes: 245055488 btree space waste bytes: 842802897 file data blocks allocated: 9656815640576 referenced 929225080832 Scrub completes ok though. I'm prepared to wipe the fs if needed, more than one backup is ready :)
