❯ ../../chicken-6-preparation/chicken-git/bin/csi -s tcp-hammer.scm 4242 /tmp/tcp-hammer.out
port: 4242, out: /tmp/tcp-hammer.out

Error: call of non-procedure: #<invalid forwarded object>

	Call history:

	tcp-hammer.scm:24	  [copy-chars!] (peek-char in)
	tcp-hammer.scm:25	  [copy-chars!] (not (eof-object? p))
	tcp-hammer.scm:25	  [copy-chars!] (eof-object? p)
	tcp-hammer.scm:26	  [copy-chars!] (peek-char in)
	tcp-hammer.scm:27	  [copy-chars!] (read-char in)
	tcp-hammer.scm:28	  [copy-chars!] (eqv? p2 p)
	tcp-hammer.scm:28	  [copy-chars!] (eqv? c p)
	tcp-hammer.scm:31	  [copy-chars!] (write-char c out)
	tcp-hammer.scm:32	  [copy-chars!] (+ chars-read 1)
	tcp-hammer.scm:33	  [copy-chars!] (loop (-Assertion failed: (C_restart_c == (C_temporary_stack_bottom - C_temporary_stack)), function CHICKEN_run, file runtime.c, line 1599.
[1]    67302 abort      ../../chicken-6-preparation/chicken-git/bin/csi -s tcp-hammer.scm 4242