Re: [MiNT] ext2 reserved block bug

[Frank Naumann <fnaumann@freemint.de>]

Hello!

> Right and dump2fs says:
> 
> Inode count:              128016
> Block count:              511754
> Reserved block count:     25587
> Free blocks:              24711
> Free inodes:              119001
> First block:              1
> Reserved blocks uid:      0 (user root)
> Reserved blocks gid:      0 (group root)
> 
> ...the number of free blocks is just below the number of reserved
> blocks.  Thing evaluates the partition is filled at 95% also,
> which confirms the 5% default is in place.
> 
> However, it seems this is ignored by older binaries, probably
> because older libraries allowed ignoring filesystem warnings.

It can be ignored but Fwrite() from user account definitly fail.

> What purpose do these reserved blocks serve?  Are they used to
> store the bitmap information or anything else vital to the
> filesystem maintenance?

The purpose is that no user can completly fill up the filesystem.


Tschuess
   ...Frank

--
ATARI FALCON 040 // MILAN 060
-----------------------------------------
http://www.cs.uni-magdeburg.de/~fnaumann/
e-Mail: fnaumann@freemint.de