ThunderLAN is noisy and impolite when sharing an interrupt with another
device.

Apply by doing:
	cd /usr/src
	patch -p0 < 016_tl.patch
And then rebuild your kernel.

Index: sys/dev/pci/if_tl.c
===================================================================
RCS file: /cvs/src/sys/dev/pci/if_tl.c,v
retrieving revision 1.13
diff -u -r1.13 if_tl.c
--- if_tl.c	2000/09/21 04:03:52	1.13
+++ if_tl.c	2000/12/23 06:16:34
@@ -1773,10 +1773,6 @@
 
 	switch(ints) {
 	case (TL_INTR_INVALID):
-#ifdef DIAGNOSTIC
-		if (sc->tl_empty_intr == 0)
-			printf("tl%d: got an invalid interrupt!\n", sc->tl_unit);
-#endif
 		/* Re-enable interrupts but don't ack this one. */
 		CMD_PUT(sc, type);
 		r = 0;
@@ -2648,9 +2644,7 @@
 	/*
 	 * Attempt to clear stray interrupts
 	 */
-	sc->tl_empty_intr = 1;
 	tl_intr((void *)sc);
-	sc->tl_empty_intr = 0;
 
 	/*
 	 * Attach us everywhere.
Index: sys/dev/pci/if_tlreg.h
===================================================================
RCS file: /cvs/src/sys/dev/pci/if_tlreg.h,v
retrieving revision 1.4
diff -u -r1.4 if_tlreg.h
--- if_tlreg.h	1999/09/13 20:45:26	1.4
+++ if_tlreg.h	2000/12/23 06:16:39
@@ -122,7 +122,6 @@
 	u_int8_t		tl_ctlr;	/* chip number */
 	u_int8_t		tl_unit;	/* interface number */
 	u_int8_t		tl_eeaddr;
-	u_int8_t		tl_empty_intr;	/* expecting empty interrupt */
 	u_int8_t		tl_phy_addr;	/* PHY address */
 	u_int8_t		tl_tx_pend;	/* TX pending */
 	u_int8_t		tl_want_auto;	/* autoneg scheduled */