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SubjectRe: xattr hash error in 4.13-rc with overlayfs over ext4
On Thu, Jul 27, 2017 at 8:20 PM, Tahsin Erdogan <tahsin@google.com> wrote:
> Hi Miklos,
> I made a first attempt to reproduce the failure but did not get lucky.
>
>> Inode 3093, i_blocks is 16, should be 8. Fix<y>? yes
> Does this inode correspond to foo, bar or a preexisting file?
>
> Do you mind sharing the output of the following command?
> debugfs -R "stat <3093>" /dev/${ext4_dev}

Inode: 17093 Type: regular Mode: 0644 Flags: 0x80000
Generation: 2184376062 Version: 0x00000000:00000001
User: 0 Group: 0 Project: 0 Size: 8
File ACL: 65561 Directory ACL: 0
Links: 2 Blockcount: 16
Fragment: Address: 0 Number: 0 Size: 0
ctime: 0x597a3e23:7d3fc138 -- Thu Jul 27 19:25:23 2017
atime: 0x597a3dfc:a80bc138 -- Thu Jul 27 19:24:44 2017
mtime: 0x597a3e23:7d3fc138 -- Thu Jul 27 19:25:23 2017
crtime: 0x597a3e23:787b0938 -- Thu Jul 27 19:25:23 2017
Size of extra inode fields: 32
EXTENTS:
(0):142340

Resulting fsck output:

Pass 1: Checking inodes, blocks, and sizes
Extended attribute in inode 17093 has a hash (2257320705) which is invalid
Clear<y>? yes
Inode 17093, i_blocks is 16, should be 8. Fix<y>? yes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Block bitmap differences: -65561
Fix<y>? yes
Free blocks count wrong for group #2 (13797, counted=13798).
Fix<y>? yes
Free blocks count wrong (86361, counted=86362).
Fix<y>? yes

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