[squid-users] Zero Size Reply.... Common?

Hi...

I've been searching around in order to find an answer why squid seems to
get a zero sized reply on some sites which seem common to some
users..... http://mail.yahoo.com (While loggin in in NON-Secure mode)
http://pinger.macromedia.com and some others...

I've Read the FAQ and done everything it recomends but have not been
successful in solving the problems..

I thought it could be a problem in my linux box, but I've noticed while
searching in many web pages that many people have reported this.

VERSION squid-2.5.PRE7
PATCH squid.wccpv2.patch

squid was compiled with:

configure options: --prefix=/usr/local/squid --enable-ipf-transparent
--enable-err-language=Spanish --enable-cache-digests --enable-htcp
--enable-snmp --enable-carp --enable-wccp2 --enable-linux-netfilter
--enable-removal-policies=heap --enable-storeio=diskd,ufs
--enable-gnuregex --enable-memory-pools --enable-asyncio
--enable-delay-pools --disable-internal-dns

this is a snapshot from TOP command...

  8:45am up 3 days, 23:35, 3 users, load average: 12.25, 6.75, 4.37
80 processes: 74 sleeping, 6 running, 0 zombie, 0 stopped
CPU0 states: 0.4% user, 19.2% system, 0.0% nice, 79.3% idle
CPU1 states: 30.2% user, 68.4% system, 0.0% nice, 0.3% idle
Mem: 2194476K av, 2183748K used, 10728K free, 0K shrd, 181264K
buff
Swap: 2097136K av, 7200K used, 2089936K free 1327856K
cached

  PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND
11180 nobody 25 0 447M 445M 4108 R 98.9 20.8 3453m squid
11211 nobody 15 0 688 660 628 R 0.7 0.0 5:53 diskd
11210 nobody 15 0 688 660 628 S 0.3 0.0 5:35 diskd
11209 nobody 15 0 688 660 628 S 0.1 0.0 5:09 diskd
11226 nobody 15 0 732 728 632 S 0.1 0.0 8:48 dnsserver
11227 nobody 15 0 700 696 604 S 0.1 0.0 3:03 dnsserver
11205 nobody 15 0 312 292 264 S 0.0 0.0 0:00 unlinkd
11206 nobody 15 0 676 648 616 S 0.0 0.0 5:26 diskd
11207 nobody 15 0 668 640 608 R 0.0 0.0 5:30 diskd
11208 nobody 15 0 680 652 620 S 0.0 0.0 5:40 diskd
11212 nobody 15 0 660 632 600 R 0.0 0.0 5:40 diskd
11228 nobody 15 0 700 696 604 S 0.0 0.0 1:19 dnsserver
11229 nobody 15 0 700 684 604 S 0.0 0.0 0:36 dnsserver
11230 nobody 15 0 696 680 600 S 0.0 0.0 0:16 dnsserver
11231 nobody 15 0 700 684 604 S 0.0 0.0 0:06 dnsserver
11232 nobody 15 0 700 684 604 S 0.0 0.0 0:03 dnsserver
11233 nobody 15 0 700 684 604 S 0.0 0.0 0:02 dnsserver
11234 nobody 15 0 692 676 596 S 0.0 0.0 0:01 dnsserver
11235 nobody 15 0 692 676 596 S 0.0 0.0 0:01 dnsserver
11236 nobody 15 0 692 676 596 S 0.0 0.0 0:01 dnsserver
11237 nobody 15 0 692 676 596 S 0.0 0.0 0:00 dnsserver

and here's a TCPDUMP session on pinger.macromedia.com

# tcpdump -i eth0 -n |grep 65.57.83.15
tcpdump: listening on eth0

08:47:56.904651 65.57.83.15.http > 150.188.4.9.34600: . ack 637188731
win 7504 <nop,nop,timestamp 34428571 26088711> (DF)
08:47:56.912507 150.188.8.162.9592 > 65.57.83.15.http: S
411832867:411832867(0) win 5840 <mss 1460,sackOK,timestamp 34428572
0,nop,wscale 0> (DF)
08:47:57.090193 65.57.83.15.http > 150.188.8.162.9592: S
2269501473:2269501473(0) ack 411832868 win 32832 <nop,nop,timestamp
1742258488 34428572,nop,wscale 1,nop,nop,sackOK,mss 1380> (DF)
08:47:57.090223 150.188.8.162.9592 > 65.57.83.15.http: . ack 1 win 5840
<nop,nop,timestamp 34428589 1742258488> (DF)
08:47:57.106887 150.188.8.162.9592 > 65.57.83.15.http: P 1:547(546) ack
1 win 5840 <nop,nop,timestamp 34428591 1742258488> (DF)
08:47:57.284138 65.57.83.15.http > 150.188.8.162.9592: . ack 547 win
32832 <nop,nop,timestamp 1742258508 34428591> (DF)
08:47:57.297731 65.57.83.15.http > 150.188.8.162.9592: F 1:1(0) ack 547
win 32832 <nop,nop,timestamp 1742258509 34428591> (DF)
08:47:57.302004 150.188.8.162.9592 > 65.57.83.15.http: . ack 2 win 5840
<nop,nop,timestamp 34428611 1742258509> (DF)
08:47:57.305230 150.188.8.162.9592 > 65.57.83.15.http: F 547:547(0) ack
2 win 5840 <nop,nop,timestamp 34428611 1742258509> (DF)
08:47:57.306208 150.188.8.162.9613 > 65.57.83.15.http: S
401077111:401077111(0) win 5840 <mss 1460,sackOK,timestamp 34428611
0,nop,wscale 0> (DF)
08:47:57.518172 150.188.8.162.9613 > 65.57.83.15.http: P
401077112:401077658(546) ack 732654534 win 5840 <nop,nop,timestamp
34428632 1775416494> (DF)
08:47:57.711750 65.57.83.15.http > 150.188.8.162.9613: . ack 546 win
32559 <nop,nop,timestamp 1775416516 34428632> (DF)
08:47:57.737963 65.57.83.15.http > 150.188.8.162.9613: F 1:1(0) ack 546
win 32832 <nop,nop,timestamp 1775416519 34428632> (DF)
08:47:57.741998 150.188.8.162.9613 > 65.57.83.15.http: . ack 2 win 5840
<nop,nop,timestamp 34428655 1775416519> (DF)
08:47:57.744979 150.188.8.162.9613 > 65.57.83.15.http: F 546:546(0) ack
2 win 5840 <nop,nop,timestamp 34428655 1775416519> (DF)
08:47:57.745745 150.188.8.162.9629 > 65.57.83.15.http: S
405111380:405111380(0) win 5840 <mss 1460,sackOK,timestamp 34428655
0,nop,wscale 0> (DF)
08:47:57.922287 65.57.83.15.http > 150.188.8.162.9613: . ack 547 win
32832 <nop,nop,timestamp 1775416537 34428655> (DF)
08:47:57.922931 65.57.83.15.http > 150.188.8.162.9629: S
1618758601:1618758601(0) ack 405111381 win 32832 <nop,nop,timestamp
1775377605 34428655,nop,wscale 1,nop,nop,sackOK,mss 1380> (DF)
08:47:57.922956 150.188.8.162.9629 > 65.57.83.15.http: . ack 1 win 5840
<nop,nop,timestamp 34428673 1775377605> (DF)
08:47:58.008706 150.188.8.162.9629 > 65.57.83.15.http: P 1:547(546) ack
1 win 5840 <nop,nop,timestamp 34428681 1775377605> (DF)
08:47:58.194449 65.57.83.15.http > 150.188.8.162.9629: . ack 547 win
32832 <nop,nop,timestamp 1775377632 34428681> (DF)
08:47:58.209810 65.57.83.15.http > 150.188.8.162.9629: F 1:1(0) ack 547
win 32832 <nop,nop,timestamp 1775377633 34428681> (DF)
08:47:58.211972 150.188.8.162.9629 > 65.57.83.15.http: . ack 2 win 5840
<nop,nop,timestamp 34428702 1775377633> (DF)
08:47:58.237874 150.188.8.162.9629 > 65.57.83.15.http: F 547:547(0) ack
2 win 5840 <nop,nop,timestamp 34428704 1775377633> (DF)
08:47:58.240007 150.188.8.162.9649 > 65.57.83.15.http: S
407733880:407733880(0) win 5840 <mss 1460,sackOK,timestamp 34428704
0,nop,wscale 0> (DF)
08:47:58.411819 65.57.83.15.http > 150.188.8.162.9629: . ack 548 win
32832 <nop,nop,timestamp 1775377653 34428704> (DF)
08:47:58.414934 65.57.83.15.http > 150.188.8.162.9649: S
1134484721:1134484721(0) ack 407733881 win 32832 <nop,nop,timestamp
1612417432 34428704,nop,wscale 1,nop,nop,sackOK,mss 1380> (DF)
08:47:58.414980 150.188.8.162.9649 > 65.57.83.15.http: . ack 1 win 5840
<nop,nop,timestamp 34428722 1612417432> (DF)
08:47:58.429884 150.188.8.162.9649 > 65.57.83.15.http: P 1:547(546) ack
1 win 5840 <nop,nop,timestamp 34428723 1612417432> (DF)
08:47:58.610429 65.57.83.15.http > 150.188.8.162.9649: . ack 547 win
32832 <nop,nop,timestamp 1612417451 34428723> (DF)
08:47:58.626772 65.57.83.15.http > 150.188.8.162.9649: F 1:1(0) ack 547
win 32832 <nop,nop,timestamp 1612417453 34428723> (DF)
08:47:58.632056 150.188.8.162.9649 > 65.57.83.15.http: . ack 2 win 5840
<nop,nop,timestamp 34428744 1612417453> (DF)
08:47:58.635280 150.188.8.162.9649 > 65.57.83.15.http: F 547:547(0) ack
2 win 5840 <nop,nop,timestamp 34428744 1612417453> (DF)
08:47:58.635460 150.188.8.162.9666 > 65.57.83.15.http: S
402107466:402107466(0) win 5840 <mss 1460,sackOK,timestamp 34428744
0,nop,wscale 0> (DF)
08:47:58.838102 65.57.83.15.http > 150.188.8.162.9649: . ack 548 win
32832 <nop,nop,timestamp 1612417471 34428744> (DF)
08:47:58.838089 65.57.83.15.http > 150.188.8.162.9666: S
4185839004:4185839004(0) ack 402107467 win 32832 <nop,nop,timestamp
1775440716 34428744,nop,wscale 1,nop,nop,sackOK,mss 1380> (DF)
08:47:58.838142 150.188.8.162.9666 > 65.57.83.15.http: . ack 1 win 5840
<nop,nop,timestamp 34428764 1775440716> (DF)
08:47:58.852906 150.188.8.162.9666 > 65.57.83.15.http: P 1:547(546) ack
1 win 5840 <nop,nop,timestamp 34428766 1775440716> (DF)
08:47:59.031452 65.57.83.15.http > 150.188.8.162.9666: . ack 547 win
32832 <nop,nop,timestamp 1775440738 34428766> (DF)
08:47:59.046362 65.57.83.15.http > 150.188.8.162.9666: F 1:1(0) ack 547
win 32832 <nop,nop,timestamp 1775440739 34428766> (DF)
08:47:59.085159 150.188.8.162.9666 > 65.57.83.15.http: . ack 2 win 5840
<nop,nop,timestamp 34428789 1775440739> (DF)
08:47:59.142049 150.188.8.162.9666 > 65.57.83.15.http: F 547:547(0) ack
2 win 5840 <nop,nop,timestamp 34428795 1775440739> (DF)
08:47:59.143946 150.188.8.162.9691 > 65.57.83.15.http: S
415191298:415191298(0) win 5840 <mss 1460,sackOK,timestamp 34428795
0,nop,wscale 0> (DF)
08:47:59.344418 65.57.83.15.http > 150.188.8.162.9666: . ack 548 win
32832 <nop,nop,timestamp 1775440769 34428795> (DF)
08:47:59.344804 65.57.83.15.http > 150.188.8.162.9691: S
835606710:835606710(0) ack 415191299 win 32832 <nop,nop,timestamp
1187826658 34428795,nop,wscale 1,nop,nop,sackOK,mss 1380> (DF)
08:47:59.365090 150.188.8.162.9691 > 65.57.83.15.http: . ack 1 win 5840
<nop,nop,timestamp 34428817 1187826658> (DF)
08:47:59.392890 150.188.8.162.9691 > 65.57.83.15.http: P 1:547(546) ack
1 win 5840 <nop,nop,timestamp 34428820 1187826658> (DF)
08:47:59.568834 65.57.83.15.http > 150.188.8.162.9691: . ack 547 win
32832 <nop,nop,timestamp 1187826680 34428820> (DF)
08:47:59.586100 65.57.83.15.http > 150.188.8.162.9691: F 1:1(0) ack 547
win 32832 <nop,nop,timestamp 1187826682 34428820> (DF)
08:47:59.591614 150.188.8.162.9691 > 65.57.83.15.http: F 547:547(0) ack
2 win 5840 <nop,nop,timestamp 34428839 1187826682> (DF)
08:47:59.594263 150.188.8.162.9722 > 65.57.83.15.http: S
413411690:413411690(0) win 5840 <mss 1460,sackOK,timestamp 34428840
0,nop,wscale 0> (DF)
08:47:59.771826 65.57.83.15.http > 150.188.8.162.9691: . ack 548 win
32832 <nop,nop,timestamp 1187826700 34428839> (DF)
08:47:59.779408 65.57.83.15.http > 150.188.8.162.9722: S
1296456569:1296456569(0) ack 413411691 win 32832 <nop,nop,timestamp
1775368972 34428840,nop,wscale 1,nop,nop,sackOK,mss 1380> (DF)
08:47:59.779452 150.188.8.162.9722 > 65.57.83.15.http: . ack 1 win 5840
<nop,nop,timestamp 34428858 1775368972> (DF)
08:47:59.790866 150.188.8.162.9722 > 65.57.83.15.http: P 1:547(546) ack
1 win 5840 <nop,nop,timestamp 34428859 1775368972> (DF)
08:47:59.967943 65.57.83.15.http > 150.188.8.162.9722: . ack 547 win
32832 <nop,nop,timestamp 1775368991 34428859> (DF)
08:47:59.984787 65.57.83.15.http > 150.188.8.162.9722: F 1:1(0) ack 547
win 32832 <nop,nop,timestamp 1775368993 34428859> (DF)
08:47:59.990547 150.188.8.162.9722 > 65.57.83.15.http: F 547:547(0) ack
2 win 5840 <nop,nop,timestamp 34428879 1775368993> (DF)
08:47:59.992128 150.188.8.162.9737 > 65.57.83.15.http: S
403989564:403989564(0) win 5840 <mss 1460,sackOK,timestamp 34428880
0,nop,wscale 0> (DF)
08:48:00.164546 65.57.83.15.http > 150.188.8.162.9722: . ack 548 win
32832 <nop,nop,timestamp 1775369011 34428879> (DF)
08:48:00.170113 65.57.83.15.http > 150.188.8.162.9737: S
2516376899:2516376899(0) ack 403989565 win 32832 <nop,nop,timestamp
1775406356 34428880,nop,wscale 1,nop,nop,sackOK,mss 1380> (DF)
08:48:00.170139 150.188.8.162.9737 > 65.57.83.15.http: . ack 1 win 5840
<nop,nop,timestamp 34428897 1775406356> (DF)
08:48:00.215277 150.188.8.162.9737 > 65.57.83.15.http: P 1:547(546) ack
1 win 5840 <nop,nop,timestamp 34428902 1775406356> (DF)
08:48:00.391958 65.57.83.15.http > 150.188.8.162.9737: . ack 547 win
32832 <nop,nop,timestamp 1775406379 34428902> (DF)
08:48:00.408660 65.57.83.15.http > 150.188.8.162.9737: F 1:1(0) ack 547
win 32832 <nop,nop,timestamp 1775406380 34428902> (DF)
08:48:00.412015 150.188.8.162.9737 > 65.57.83.15.http: . ack 2 win 5840
<nop,nop,timestamp 34428922 1775406380> (DF)
08:48:00.825229 150.188.8.162.9737 > 65.57.83.15.http: F 547:547(0) ack
2 win 5840 <nop,nop,timestamp 34428963 1775406380> (DF)
08:48:00.833382 150.188.8.162.9756 > 65.57.83.15.http: S
415688783:415688783(0) win 5840 <mss 1460,sackOK,timestamp 34428964
0,nop,wscale 0> (DF)
08:48:01.000927 65.57.83.15.http > 150.188.8.162.9737: . ack 548 win
32832 <nop,nop,timestamp 1775406439 34428963> (DF)
08:48:01.007973 65.57.83.15.http > 150.188.8.162.9756: S
155242700:155242700(0) ack 415688784 win 32832 <nop,nop,timestamp
1775396432 34428964,nop,wscale 1,nop,nop,sackOK,mss 1380> (DF)
08:48:01.007998 150.188.8.162.9756 > 65.57.83.15.http: . ack 1 win 5840
<nop,nop,timestamp 34428981 1775396432> (DF)
08:48:08.231734 150.188.8.162.9756 > 65.57.83.15.http: P 1:547(546) ack
1 win 5840 <nop,nop,timestamp 34429703 1775396432> (DF)
08:48:08.665050 150.188.8.162.9756 > 65.57.83.15.http: F 547:547(0) ack
2 win 5840 <nop,nop,timestamp 34429747 1775397174> (DF)
08:48:08.786553 150.188.8.162.9836 > 65.57.83.15.http: S
418556283:418556283(0) win 5840 <mss 1460,sackOK,timestamp 34429759
0,nop,wscale 0> (DF)
08:48:09.532537 150.188.8.162.9836 > 65.57.83.15.http: P
418556284:418556830(546) ack 4209882009 win 5840 <nop,nop,timestamp
34429834 1775364826> (DF)
08:48:09.773598 65.57.83.15.http > 150.188.8.162.9836: . ack 546 win
32832 <nop,nop,timestamp 1775364899 34429834> (DF)
08:48:09.778144 65.57.83.15.http > 150.188.8.162.9836: F 1:1(0) ack 546
win 32832 <nop,nop,timestamp 1775364900 34429834> (DF)
08:48:09.781971 150.188.8.162.9836 > 65.57.83.15.http: . ack 2 win 5840
<nop,nop,timestamp 34429859 1775364900> (DF)
08:48:09.782455 150.188.8.162.9836 > 65.57.83.15.http: F 546:546(0) ack
2 win 5840 <nop,nop,timestamp 34429859 1775364900> (DF)
08:48:09.784676 150.188.8.162.9892 > 65.57.83.15.http: S
415784752:415784752(0) win 5840 <mss 1460,sackOK,timestamp 34429859
0,nop,wscale 0> (DF)
08:48:09.969030 65.57.83.15.http > 150.188.8.162.9892: S
2152876300:2152876300(0) ack 415784753 win 32832 <nop,nop,timestamp
1775378809 34429859,nop,wscale 1,nop,nop,sackOK,mss 1380> (DF)
08:48:09.969077 150.188.8.162.9892 > 65.57.83.15.http: . ack 1 win 5840
<nop,nop,timestamp 34429877 1775378809> (DF)
08:48:09.969019 65.57.83.15.http > 150.188.8.162.9836: . ack 547 win
32832 <nop,nop,timestamp 1775364922 34429859> (DF)
08:48:09.983514 150.188.8.162.9892 > 65.57.83.15.http: P 1:547(546) ack
1 win 5840 <nop,nop,timestamp 34429879 1775378809> (DF)
08:48:10.201501 65.57.83.15.http > 150.188.8.162.9892: F 1:1(0) ack 547
win 32832 <nop,nop,timestamp 1775378831 34429879> (DF)
08:48:10.204928 150.188.8.162.9892 > 65.57.83.15.http: . ack 2 win 5840
<nop,nop,timestamp 34429901 1775378831> (DF)
08:48:10.221640 150.188.8.162.9892 > 65.57.83.15.http: F 547:547(0) ack
2 win 5840 <nop,nop,timestamp 34429902 1775378831> (DF)
08:48:10.240933 65.57.83.15.http > 150.188.4.9.34600: P 0:981(981) ack 1
win 7504 <nop,nop,timestamp 34429904 26088711> (DF)
08:48:10.407113 65.57.83.15.http > 150.188.8.162.9892: . ack 548 win
32832 <nop,nop,timestamp 1775378852 34429902> (DF)
08:48:15.008784 65.57.83.15.http > 150.188.4.9.34599: F
340008975:340008975(0) ack 584183810 win 7504 <nop,nop,timestamp
34430381 26084554> (DF)

any clues?

-francisco

-- 
________________________________________________
Francisco Jose Obispo Semidey   
System Administrator            
ccTLD .VE Technical Contact - http://www.nic.ve
CNTI - REACCIUN - http://www.cnti.ve    
Work: +58 212 709 5257
________________________________________________ 
QOTD:
	"Do you smell something burning or is it me?"
		-- Joan of Arc