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Re: write alignment matters?
On Fri, Jun 24, 2011 at 12:02:05PM -0400, Thor Lancelot Simon wrote:
> On Fri, Jun 24, 2011 at 07:50:35AM +0000, Michael van Elst wrote:
> > Similar to raw devices in performance, I/O caching, and without the
> > hardware constraints regarding block sizes or alignment. I.e. something
> > that lets you treat disk contents like a regular file.
> At least for NetBSD, that's never been true. The most glaring problem
> is that there's no protection against causing the same underlying disk
> blocks to be multiply cached by accessing the buffer cache with a different
Well, the code assumes that disklabel (used by the block device)
and filesystem agree on block size. But there are probably even
bugs with that and without disklabel there is somewhere a 2kB
Michael van Elst
"A potential Snark may lurk in every tree."
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