Re: 2.5.37 broke the floppy driver

From: Mikael Pettersson (
Date: Mon Sep 23 2002 - 15:04:05 EST

Alexander Viro writes:
> On Mon, 23 Sep 2002, Mikael Pettersson wrote:
> > With O100-get_gendisk-C38 the oops is cured, but the floppy size is
> > still wrong. Freshly booted, dd if=/dev/fd0H1440 bs=72k of=/dev/null
> > reads only 720K instead of 1440K. Same thing on write: trying to
> > write more than 720K results in an ENOSPC error.
> Arrrgh. O/O101-floppy_sizes-C38 and it's also my fsckup - missed the
> size in kilobytes/size in sectors. Fortunately that kind of crap is
> over - blk_size[] is no more...

With that patch the /dev/fd0H1440 device now seems to work. However,
the /dev/fd0 (autosensing) device gets its very first read or write
after boot wrong. For example, dd if=/dev/fd0 bs=8k count=1 of=/dev/null
only reads 4096 bytes, and likewise a write will only write 4096 bytes
before reporting ENOSPC. Accesses after the first work though.
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This archive was generated by hypermail 2b29 : Mon Sep 23 2002 - 22:00:40 EST