Improve socket splicing tests:

- One more UDP test.
- Enforce that kernel returns EFBIG where appropriate.
- Better comments in test files.

1 files changed, 3 insertions, 1 deletions

diff --git a/regress/sys/kern/sosplice/tcp/args-max-sleep-server.pl b/regress/sys/kern/sosplice/tcp/args-max-sleep-server.pl
index 91d2a7af8f7..e8ffe6225be 100644
--- a/regress/sys/kern/sosplice/tcp/args-max-sleep-server.pl
+++ b/regress/sys/kern/sosplice/tcp/args-max-sleep-server.pl
@@ -1,4 +1,5 @@
-# test maximum data length with delay before server read
+# test maximum data length,
+# server sleeps before reading
 
 use strict;
 use warnings;
@@ -11,6 +12,7 @@ our %args = (
     },
     relay => {
 	max => 32117,
+	big => 1,
     },
     server => {
 	func => sub { sleep 3; read_stream(@_); },