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authorgdt <gdt@NetBSD.org>2011-05-25 23:20:57 +0000
committergdt <gdt@NetBSD.org>2011-05-25 23:20:57 +0000
commitd4633cc7fb1c6824d2a8d6c1e31a139b4a995e1f (patch)
treec4fb2c4d834d0af800db81dc20f6b2412d85b073 /gnu/usr.bin/diffutils/diff
parentefac3c7b1fa7884a29abf56fe8bfe0689cc5b8cd (diff)
Remove erroneous additional tick in RTO estimation. The variable
ts_rtt is 1 plus the RTT, so that 0 can mean invalid measurement. However, the code failed to subtract the 1 back out before use. With this change, TCP from Massachusetts to France now typically has 1s RTO values, rather than 1.5s. This bug was found and fixed by Bev Schwartz of BBN. This material is based upon work supported by the Defense Advanced Research Projects Agency and Space and Naval Warfare Systems Center, Pacific, under Contract No. N66001-09-C-2073. Approved for Public Release, Distribution Unlimited
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