selftests: Use separate stdout and stderr buffers in nettest

When a single instance of nettest is doing both client and
server modes, stdout and stderr messages can get interlaced
and become unreadable. Allocate a new set of buffers for the
child process handling server mode.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
David Ahern 2021-01-13 20:09:42 -07:00 • committed by Jakub Kicinski
commit f222c37cf7