Date: Wed, 05 Jul 2006 14:22:42 -0600 From: "Justin T. Gibbs" <gibbs@scsiguy.com> To: Charles Swiger <cswiger@mac.com> Cc: stable@FreeBSD.org Subject: Re: fetch hangs on AMD64 RELENG_6 Message-ID: <C11BD5CD359465AF9DFCE52C@[10.0.0.90]> In-Reply-To: <B2E79C72-F189-4678-AF04-39F3FE3ED12D@mac.com> References: <86C10E7655AA8C2D8C433AAC@[10.0.0.90]> <B2E79C72-F189-4678-AF04-39F3FE3ED12D@mac.com>
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Hmm. Seems we close the window unexpectedly and the remote side doesn't retransmit when we open it. FreeBSD's acks stop once the window is fully open... aren't the acks supposed to retried longer? If not, shouldn't fetch eventually see a socket close event instead of hanging forever? A similar failure occurs with SACK disabled. -- Justin 13:31:44.695211 IP manna.mozilla.org.http > databus.avidyne.com.64531: . 9018128:9019496(1368) ack 179 win 1716 <nop,nop,timestamp 3624417434 418261043> 13:31:44.695229 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 8957936 win 32832 <nop,nop,timestamp 418261383 3624417092,nop,nop,sack 1 {8959304:9019496}> 13:31:44.702704 IP manna.mozilla.org.http > databus.avidyne.com.64531: . 9019496:9020864(1368) ack 179 win 1716 <nop,nop,timestamp 3624417442 418261050> 13:31:44.702719 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 8957936 win 32832 <nop,nop,timestamp 418261390 3624417092,nop,nop,sack 1 {8959304:9020864}> 13:31:44.710200 IP manna.mozilla.org.http > databus.avidyne.com.64531: . 9020864:9022232(1368) ack 179 win 1716 <nop,nop,timestamp 3624417449 418261058> 13:31:44.710215 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 8957936 win 32832 <nop,nop,timestamp 418261398 3624417092,nop,nop,sack 1 {8959304:9022232}> 13:31:44.719444 IP manna.mozilla.org.http > databus.avidyne.com.64531: . 9022232:9023600(1368) ack 179 win 1716 <nop,nop,timestamp 3624417457 418261065> 13:31:44.719462 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 8957936 win 32832 <nop,nop,timestamp 418261407 3624417092,nop,nop,sack 1 {8959304:9023600}> 13:31:44.727065 IP manna.mozilla.org.http > databus.avidyne.com.64531: . 8957936:8959304(1368) ack 179 win 1716 <nop,nop,timestamp 3624417464 418261073> 13:31:44.727089 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 0 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727146 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 1680 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727181 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 3216 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727275 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 4752 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727295 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 6288 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727342 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 7824 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727375 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 9360 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727492 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 10896 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727513 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 12432 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727565 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 15504 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727632 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 17040 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727653 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 18576 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727701 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 20112 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727780 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 21648 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727870 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 23184 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727889 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 24720 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727920 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 26256 <nop,nop,timestamp 418261415 3624417464> 13:31:44.727982 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 27792 <nop,nop,timestamp 418261416 3624417464> 13:31:44.728034 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 29328 <nop,nop,timestamp 418261416 3624417464> 13:31:44.728053 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 30864 <nop,nop,timestamp 418261416 3624417464> 13:31:44.728217 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 32400 <nop,nop,timestamp 418261416 3624417464>
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