Date: Fri, 24 Jun 2011 00:09:58 -0700
From: Erik Fair <[email protected]>
Message-ID: <[email protected]>
| Oh, and as noted before, through the block interface, you could do
| arbitrary (up to ... was it 64KB?
Just under that, the count arg on read/write was an int after all (on
a 16 bit system). Negative counts make no sense, so 65535 was the max
possible, but if your I/O was 65535 detecting the difference between
"it worked" and "error" was non trivial.
| Of course, if you want to talk about really slow I/O with massive
| latency, let's talk about random access to DECtapes ...
In order to get a system booted, I ran (once or twice) with root
mounted (read only, naturally) from a 9-track tape. Slow doesn't
begin to describe it, but it did work.
Michael van Elst <[email protected]> said:
| Oh, I was talking about current NetBSD where block devices are a second
| class citizen, soon to be abolished if someone finds enough round tuits.
Yes, so it keeps being said. It would truly be a pity to see that happen.
kre
