Re: Induced crashes

[tb@becket.net (Thomas Bushnell, BSG)]

Marcus Brinkmann <Marcus.Brinkmann@ruhr-uni-bochum.de> writes:

> On Mon, Dec 16, 2002 at 08:32:18PM -0500, Neal H. Walfield wrote:
> > > Disk hardware guarantees that a sector write can always be completed
> > > even if the power goes out partway through.  That means that writing a
> > > single sector *is* always atomic.
> > 
> > The size of a single sector does not necessarily equal the size of of
> > a disk block.
> 
> And, what about reordering of writes in the device driver?

Mach device drivers are not allowed to reorder writes.