add .gitignore

[swift-upb.git] / BUGS

diff --git a/BUGS b/BUGS
index d94069d..a307743 100644 (file)
--- a/BUGS
+++ b/BUGS
@@ -1,21 +1,58 @@
+    * min_owd TINT_NEVER is logged
+
     v hints, data for non-existing ranges
-    * opens multiple channels to the same address
+    v opens multiple channels to the same address
     v hints do not expire
     v RTT calculations need improvement (test)
     v google-log is unnecessary
     * reduce template use (peer queue)
     v hints do not expire
     v survive 10% loss
-    * unlimited ping pong
+    v unlimited ping pong
     v git sha-1
     v check hints agains ack_out?_
     v check data against ack_in
     v channel suspend/wake. 3 cong modes state machine - ???
+    * release hints for a dormant channel
     * minimize the number of template instantiations
     v Channel thinks how much it HINTs a second,
       picker thinks which HINTs are snubbed
-    * dead Channels are not killed => cannot open a new one
+    * files <1sec download : how HINTs are sent?
+    v dead Channels are not killed => cannot open a new one
         (have a channel already)
     v peers don't cooperate
     * RecoverProgress fails sometime
-    * leecher can't see file is done already
+    v leecher can't see file is done already
+    v why leecher waits 1sec?
+    * hint queue buildup
+    * file operations are not 64-bit ready
+        http://mail.python.org/pipermail/patches/2000-June/000848.html
+    * recovery: last packet
+    v no-HINT sending to a dead peer
+    * what if rtt>1sec
+    v unHINTed repeated sending
+    v 1259859412.out#8,9 connection breaks, #8 rtt 1000, #9 hint - 
+     mudachestvo, cwnd => send int 0.5sec
+     0_11_10_075_698 #9 sendctrl may send 0 < 0.000000 & 1732919509_-49_-45_-200_-111 (rtt 59661)
+     0_11_10_075_698 #9 +data (0,194)
+     0_11_10_575_703 #9 sendctrl loss detected
+     0_11_10_575_703 #9 Tdata (0,194)
+     0_11_10_575_703 #9 sendctrl may send 0 < 0.000000 & 1732919509_-49_-44_-700_-110 (rtt 59661)
+    v complete peer reconnects 1259967418.out.gz
+    * underhinting causes repetition causes interarr underest causes underhinting
+    * misterious initiating handshake bursts
+    v whether sending is limited by cwnd or app
+    * actually: whether packets are ACKed faster than sent
+    * uproot DATA NONE: complicates and deceives
+    v r735 goes to github; r741
+    * receiver is swapping => strange behavior
+    v on high losses cwnd goes to silly fractions => slows down recovery
+    v code the pingpong<->keepalive<->slowstart transition
+    v empty datagram hammering (see at linode)
+    * make a testkit!!!
+    * never back from keepalive syndrome (because of underhashing)
+    * HTTP daemon, combined select() loop
+    * range requests, priorities
+    v LEDBAT
+    * CUBIC
+    v misterious mass packet losses (!data)