msdos filesystem extremely slow, and buggy

[Rhialto <rhialto%falu.nl@localhost>]

I was copying a file to a USB stick with the msdos file system.
I had fortunately mounted it with -o rump, because it paniced:

panic: genfs_getpages: VOP_BMAP & lazy bum: 7

Also, the file was moderately large (1,5 GB) and I noticed that it was
extremely slow to write that file.

Once upon a time (2006) I fixed a slowness bug in msdosfs:
http://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=34583

It seems that the problem is back (in fact, it has been back for a
while...)

-Olaf.
-- 
___ Olaf 'Rhialto' Seibert  -- There's no point being grown-up if you 
\X/ rhialto/at/xs4all.nl    -- can't be childish sometimes. -The 4th Doctor