diff --git a/m1rc3/norruption/4/LOG b/m1rc3/norruption/4/LOG
new file mode 100644
index 0000000..a863e5d
--- /dev/null
+++ b/m1rc3/norruption/4/LOG
@@ -0,0 +1,42 @@
+--- Fri 2011-12-16 ------------------------------------------------------------
+
+reflash_m1.sh --release 2011-07-13
+wget http://milkymist.org/updates/2011-07-13/for-rc3/boot.4e53273.bin
+flterm --port /dev/ttyUSB0 --kernel boot.4e53273.bin
+
+Check image CRCs: all but bios-rescue.bin pass. (bios-rescue has the
+MAC issue.)
+
+Configured to 1024x768, US keyboard, Ethernet off, performance mode,
+only the "Tunnel" to patch.
+
+10:29 test run starts (2/d9/, using 2/aloop)
+
+--- Sat 2011-12-17 ------------------------------------------------------------
+
+12:33 interrupted after completing cycle 5000
+      dumplock: all locks read zero ("unlocked")
+      CRC check: no anomalies
+
+12:34 started test run (2/d10/)
+
+--- Sun 2011-12-18 ------------------------------------------------------------
+
+14:39 interrupted after completing cycle 5002
+      dumplock: all locks read zero ("unlocked")
+      CRC check: no anomalies
+      standby partition bytewise comparison: only difference at the end
+
+14:44 started test run (2/d11/)
+
+--- Mon 2011-12-19 ------------------------------------------------------------
+
+11:42 stopped after completing cycle 4019
+      dumplock: all locks read zero ("unlocked")
+      CRC check: no anomalies
+      standby partition bytewise comparison: only difference at the end
+
+If we assume that occurrence of NOR corruption follows an exponential
+distribution with lambda = 1/700, then such corruption would have
+been observed in the above 14002 cycles with a probability of
+1-exp(-1/700*(5000+5002+4019)) = 99.9999998%.