On Sun, 1 Sep 2002, Linus Torvalds wrote:
> It looks like what your fix does is to force a 512-byte blocksize on the
> floppy.
>
> Which implies to me that the floppy driver is broken for other blocksizes.
>
> Does your patch still leave the floppy driver broken for something like a
> mounted minix or ext2 filesystem? Those have 1kB blocksizes, and will set
> it to that. If the non-512B blocksize in the floppy driver is broken, then
> such mounted filesystems should not work reliably either.
You are correct. Making an ext2 filesystem on the floppy is indeed
broken. Attempting to read/write from the resulting filesystem results in
the following type errors:
Sep 1 13:18:23 dad kernel: EXT2-fs error (device fd(2,0)):
ext2_check_page: bad entry in directory #11: unaligned directory entry -
offset=7168, inode=1431634935, rec_len=50, name_len=0
Sep 1 13:20:20 dad kernel: EXT2-fs error (device fd(2,0)):
ext2_check_page: bad entry in directory #11: rec_len is smaller than
minimal - offset=7168, inode=0, rec_len=0, name_len=0
Sep 1 13:22:29 dad kernel: EXT2-fs warning: mounting fs with errors,
running e2fsck is recommended
Sep 1 13:23:09 dad kernel: EXT2-fs error (device fd(2,0)):
ext2_check_page: bad entry in directory #11: directory entry across
blocks - offset=7168, inode=861697588, rec_len=12592, name_len=119
Sep 1 13:24:38 dad kernel: EXT2-fs error (device fd(2,0)):
ext2_check_page: bad entry in directory #11: rec_len is smaller than
minimal - offset=7168, inode=0, rec_len=0, name_len=0
Putting a text file on the floppy shows 512 byte chunks of the file being
moved around depending on how many times the file is read/written.
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This archive was generated by hypermail 2b29 : Sat Sep 07 2002 - 22:00:14 EST