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From: Ian Kelling <iank@fsf.org>
To: linux-btrfs@vger.kernel.org
Subject: Re: I got a write time tree block corruption detected
Date: Thu, 07 Oct 2021 16:54:36 -0400	[thread overview]
Message-ID: <871r4wr1t3.fsf@fsf.org> (raw)
In-Reply-To: <87ily8y9c8.fsf@fsf.org>

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For this log line,

[Thu Oct  7 13:04:41 2021] BTRFS critical (device dm-3): corrupt leaf: root=5 block=5558935797760 slot=0 ino=161138910, invalid nlink: has 2 expect no more than 1 for dir

I see a previous report on the list and someone requested output of a command (
https://lore.kernel.org/linux-btrfs/fb556cb2-4444-005f-4a94-6346f2a641ac@gmx.com/ )

btrfs ins dump-tree -b 5558935797760 /dev/dm-3

The output is rather long, I've attached it, but here is the head and tail
also in case that is enough:

btrfs-progs v5.10.1 
leaf 5558935797760 items 244 free space 2131 generation 129446 owner EXTENT_TREE
leaf 5558935797760 flags 0x1(WRITTEN) backref revision 1
fs uuid cdbab81e-20ec-49e6-904c-649f6096b112
chunk uuid 41516bf2-a2b3-4793-bb1c-bbcb8a7cca40
        item 0 key (15927669194752 METADATA_ITEM 0) itemoff 16250 itemsize 33
                refs 1 gen 129210 flags TREE_BLOCK
                tree block skinny level 0
                tree block backref root EXTENT_TREE
        item 1 key (15927669211136 METADATA_ITEM 0) itemoff 16217 itemsize 33
                refs 1 gen 129216 flags TREE_BLOCK
                tree block skinny level 0
                tree block backref root FS_TREE

...

        item 242 key (15927673700352 METADATA_ITEM 0) itemoff 8264 itemsize 33
                refs 1 gen 129225 flags TREE_BLOCK
                tree block skinny level 0
                tree block backref root FS_TREE
        item 243 key (15927673716736 METADATA_ITEM 0) itemoff 8231 itemsize 33
                refs 1 gen 129239 flags TREE_BLOCK
                tree block skinny level 0
                tree block backref root EXTENT_TREE

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-- 
Ian Kelling | Senior Systems Administrator, Free Software Foundation
GPG Key: B125 F60B 7B28 7FF6 A2B7  DF8F 170A F0E2 9542 95DF
https://fsf.org | https://gnu.org

  reply	other threads:[~2021-10-07 20:57 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-07 18:32 I got a write time tree block corruption detected Ian Kelling
2021-10-07 20:54 ` Ian Kelling [this message]
2021-10-10 14:14   ` Ian Kelling
2021-10-10 18:00 ` Zygo Blaxell
2021-10-10 20:52   ` Ian Kelling
2021-10-10 23:57 ` Qu Wenruo

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