[LU-10641] e2fsck: ext2fs_write_inode: Attempt to write to filesystem opened read-only

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Labels: patch

Epic/Theme

e2fsprogs

• Severity: 3
• Assignee: Vladimir Saveliev
• Reporter: Vladimir Saveliev

Description

Way to reproduce:

mkfs.ext4 -O large_xattr /path/to/dev
#
mount -t ldiskfs /path/to/dev /mnt
#
touch /mnt/file
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# create xattr stored on ea_inode
#
setfattr -n user.longxattr -v $(printf '=%.0s' {1..4054}) /mnt/file
#
umount /mnt
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# corrupt the filesystem so that e2fsck will try to attach ea_inode to lost+found:
#
debugfs -w -R 'clri file' /path/to/dev
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# e2fsck in readonly mode tries to write node
#
# e2fsck -fn /path/to/dev
e2fsck 1.42.13.wc5 (15-Apr-2016)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Entry 'file' in / (2) has deleted/unused inode 12.  Clear? no
 
Entry 'file' in / (2) has an incorrect filetype (was 1, should be 0).
Fix? no
 
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
ext2fs_write_inode: Attempt to write to filesystem opened read-only while writing inode 13 in disconnect_inode
 
/path/to/dev: ********** WARNING: Filesystem still has errors **********