bug in tty driver?

[Mikel Manitius]

> Description:
> 
> The following combination of events seems to cause reads of a tty to return
> EOF (VAX System V, Rel 2.0, Version 2; but may apply to your system as well):
> 
> 1) type a character, then backspace
> 2) have your terminal set into raw mode, then back to canonical mode
> 
> This problem arises (for example), if I type vnews<CR>, then n^H, and vnews
> decides I have no news.
> 
> Prove it:
> 
> Place the following text in a file called "foo".
> 	sleep 10
> 	: remember previous settings
> 	x=`stty -g`
> 	stty raw
> 	stty $x
> 
> Now type:
> sh foo<CR>
> x^H<no CR>
> After 10 seconds, your shell will exit.  This applies to both the tty driver
> and the sxt driver.
> 					Ron Williams
> 					utzoo!hcrvax!hcrvx1!ronald

I have tried this on my 3B2 5.2 2.0, it does not throw generate an EOF
for me, however it does create other problems: After running foo, when I
type a character, it is not echoed, the next time I type it, I get a bell,
and the procedure repeats itself, when I try to type different characters,
I get just bells, only when I generate some activity on the keyboard
(ie: typing many characters per second) do they begin to echo. This is
quite interresting.
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