On Mon, 25 Apr 2022 18:01:00 -0400, Gabriel Krisman Bertazi wrote:
>Combining superblock (-b) with undo file (-z) fails iff the block size
>is not specified (-B) and is different from the first blocksize probed
>in try_open_fs (1k). The reason is as follows:
>
>try_open_fs() will probe different blocksizes if none is provided on
>the command line. It is done by opening and closing the filesystem
>until it finds a blocksize that makes sense. This is fine for all
>io_managers, but undo_io creates the undo file with that blocksize
>during ext2fs_open. Once try_open_fs realizes it had the wrong
>blocksize and retries with a different blocksize, undo_io will read
>the previously created file and think it's corrupt for this
>filesystem.
Applied, thanks!
[1/1] e2fsck: Always probe filesystem blocksize with simple io_manager
commit: 0ae0e93624a933a1c6ea4e4680ff5d609f267a43
Best regards,
--
Theodore Ts'o <tytso@xxxxxxx>
