Neukládá si to svoje data do xattr? Třeba zjistili, že jim občas někde přetečou buffery a nechce se jim to hledat.
" In the current ext2, ext3, and ext4 filesystem implementations, the
total bytes used by the names and values of all of a file's extended
attributes must fit in a single filesystem block (1024, 2048 or 4096
bytes, depending on the block size specified when the filesystem was
created).
In the Btrfs, XFS, and Reiserfs filesystem implementations, there is
no practical limit on the number of extended attributes associated
with a file, and the algorithms used to store extended attribute
information on disk are scalable.
In the JFS, XFS, and Reiserfs filesystem implementations, the limit
on bytes used in an EA value is the ceiling imposed by the VFS.
In the Btrfs filesystem implementation, the total bytes used for the
name, value, and implementation overhead bytes is limited to the
filesystem nodesize value (16 kB by default)."