D17047.diff
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	Index: head/sys/dev/random/fortuna.c
	===================================================================
	--- head/sys/dev/random/fortuna.c
	+++ head/sys/dev/random/fortuna.c
	@@ -39,6 +39,7 @@

	#ifdef _KERNEL
	#include <sys/param.h>
	+#include <sys/fail.h>
	#include <sys/kernel.h>
	#include <sys/lock.h>
	#include <sys/malloc.h>
	@@ -385,6 +386,18 @@
	}

	#ifdef _KERNEL
	+ /*
	+ * When set, pretend we do not have enough entropy to reseed yet.
	+ */
	+ KFAIL_POINT_CODE(DEBUG_FP, random_fortuna_pre_read, {
	+ if (RETURN_VALUE != 0) {
	+ RANDOM_RESEED_UNLOCK();
	+ return;
	+ }
	+ });
	+#endif
	+
	+#ifdef _KERNEL
	fortuna_state.fs_lasttime = now;
	#endif

	@@ -441,6 +454,14 @@
	bool
	random_fortuna_seeded(void)
	{
	+
	+#ifdef _KERNEL
	+ /* When set, act as if we are not seeded. */
	+ KFAIL_POINT_CODE(DEBUG_FP, random_fortuna_seeded, {
	+ if (RETURN_VALUE != 0)
	+ fortuna_state.fs_counter = UINT128_ZERO;
	+ });
	+#endif

	return (!uint128_is_zero(fortuna_state.fs_counter));
	}