Order of printing of newlines (strange echo behaviour)

[jrandall]

The order in which the command-line input newline is echoed and the stdout from the command is echoed appears to be nondeterministic?

$echo "echo with a newline"
echo with a newline
$echo "echo with a newline"
echo with a newline
$echo "echo with a newline"echo with a newline

$echo "echo with a newline"echo with a newline

$echo "echo with a newline"
echo with a newline
$echo "echo with a newline"
echo with a newline
$echo "echo with a newline"
echo with a newline
$echo "echo with a newline"echo with a newline

$echo "echo with a newline"
echo with a newline
$echo "echo with a newline"echo with a newline

$echo "echo with a newline"echo with a newline

[jrandall]

$ls
foo1  foo2  foo3
$ls
foo1  foo2  foo3
$ls
foo1  foo2  foo3
$ls
foo1  foo2  foo3
$lsfoo1  foo2  foo3

$ls
foo1  foo2  foo3
$ls
foo1  foo2  foo3
$ls
foo1  foo2  foo3
$ls
foo1  foo2  foo3
$ls
foo1  foo2  foo3
$lsfoo1  foo2  foo3

[nc6]

This is almost certainly a race condition somewhere. I'm struggling to replicate it. Think this will be low priority.