[squid-users] the ctx errors in cache.log

my server runs squid 3.3.9,and workers is set to be 3
the following from cache.log:
2013/10/10 08:48:36 kid1| ctx: enter level 0:
'http://calendar.snsapp.qq.com/cgi-bin/my_calendar_app_flag?g_tk=1964882004'
Server: QZHTTP-2.38.17}1| WARNING: suspicious CR characters in HTTP header
{Keep-Alive: timeout=5184000, max=1024
2013/10/10 08:54:56 kid3| WARNING: HTTP: Invalid Response: Bad header
encountered from
http://dc.funshion.com:5552/website/dc?mac=4437E615C913&uid=0&fpc=uoc_0_z2&pt=7&et=1&mid=&rat=&stp=CFRank&ht=&pn=&tag=&mis=110464%7C93069%7C110228%7C107197%7C106112%7C110429%7C92866%7C106910&fck=271EAA45A5CCB977CF64F336758C96C9
AKA
dc.funshion.com/website/dc?mac=4437E615C913&uid=0&fpc=uoc_0_z2&pt=7&et=1&mid=&rat=&stp=CFRank&ht=&pn=&tag=&mis=110464%7C93069%7C110228%7C107197%7C106112%7C110429%7C92866%7C106910&fck=271EAA45A5CCB977CF64F336758C96C9
2013/10/10 08:59:33 kid3| WARNING: HTTP: Invalid Response: Bad header
encountered from
http://dc.funshion.com:5552/website/dc?mac=EC55F9C5CB8B&uid=0&fpc=swm_0_z1&pt=7&et=1&mid=&rat=&stp=CFTopicRank&ht=&pn=&tag=&mis=88432%7C109043%7C110191%7C33796%7C107482%7C11540%7C109982%7C104307&fck=F25CE9EA7D383EEADE503E31FAF8543D
AKA
dc.funshion.com/website/dc?mac=EC55F9C5CB8B&uid=0&fpc=swm_0_z1&pt=7&et=1&mid=&rat=&stp=CFTopicRank&ht=&pn=&tag=&mis=88432%7C109043%7C110191%7C33796%7C107482%7C11540%7C109982%7C104307&fck=F25CE9EA7D383EEADE503E31FAF8543D
2013/10/10 09:10:48 kid1| ctx: exit level 0
2013/10/10 09:10:48 kid1| ctx: enter level 0:
'http://counter.itcpn.net/c_c.js'
2013/10/10 09:10:48 kid1| WARNING: HTTP header contains NULL characters
{Server: nginx/1.1.2
Date: Thu, 10 Oct 2013 01:10:47}
NULL
{Server: nginx/1.1.2
Date: Thu, 10 Oct 2013 01:10:47
2013/10/10 09:10:48 kid1| ctx: exit level 0
2013/10/10 09:10:48 kid1| WARNING: HTTP: Invalid Response: Bad header
encountered from http://counter.itcpn.net/c_c.js AKA
counter.itcpn.net/c_c.js
2013/10/10 09:15:47 kid2| ipcacheParse: No Address records in response to
'www.hzqm.net'
2013/10/10 09:19:03 kid3| WARNING: Closing client connection due to lifetime
timeout
2013/10/10 09:19:03 kid3|
http://61.155.167.220/data5/video07/2013/10/09/225823-102-007-1335.mp4
2013/10/10 09:20:16 kid1| WARNING: Closing client connection due to lifetime
timeout
2013/10/10 09:20:16 kid1|
http://61.155.167.220/data2/video07/2013/10/09/226653-102-007-2312.mp4
2013/10/10 10:21:22 kid2| ctx: enter level 0:
'http://mail.qq.com/cgi-bin/readmail?folderid=1&folderkey=1&t=readmail_conversation&mailid=C1T9AB4CCB6&mode=pre&maxage=3600&base=12.19&ver=19436&sid=NuX4cvD-5bfhMzVn'
2013/10/10 10:21:22 kid2| WARNING: unparseable HTTP header field {share
memory not exist, need create new share memory!}
2013/10/10 10:21:22 kid2| WARNING: unparseable HTTP header field {share
memory not exist, need create new share memory!}
2013/10/10 10:21:22 kid1| ctx: enter level 0:
'http://mail.qq.com/cgi-bin/readmail?folderid=1&folderkey=1&t=readmail_ad_conversation&mailid=C1T9AB4CCB6&mode=pre&maxage=3600&base=12.19&ver=19436&sid=NuX4cvD-5bfhMzVn'
2013/10/10 10:21:22 kid1| WARNING: unparseable HTTP header field {share
memory not exist, need create new share memory!}
2013/10/10 10:21:22 kid1| WARNING: unparseable HTTP header field {share
memory not exist, need create new share memory!}
2013/10/10 10:21:24 kid3| ctx: enter level 0:
'http://mail.qq.com/cgi-bin/readmail?folderid=1&folderkey=1&t=readmail&mailid=ZC0708-mEuKtzU3ofOnXlgKps4DD3a&mode=pre&maxage=3600&base=12.19&ver=17441&sid=NuX4cvD-5bfhMzVn'
2013/10/10 10:21:24 kid3| WARNING: unparseable HTTP header field {share
memory not exist, need create new share memory!}
2013/10/10 10:21:24 kid3| WARNING: unparseable HTTP header field {share
memory not exist, need create new share memory!}
2013/10/10 10:21:24 kid1| ctx: exit level 0
2013/10/10 10:21:24 kid1| ctx: enter level 0:
'http://mail.qq.com/cgi-bin/readmail?folderid=1&folderkey=1&t=readmail&mailid=ZC2408-rX4~_H6jUQNQLCp4vzaAX3a&mode=pre&maxage=3600&base=12.19&ver=17840&sid=NuX4cvD-5bfhMzVn'
2013/10/10 10:21:24 kid1| WARNING: unparseable HTTP header field {share
memory not exist, need create new share memory!}
2013/10/10 10:21:24 kid1| WARNING: unparseable HTTP header field {share
memory not exist, need create new share memory!}
2013/10/10 10:21:28 kid3| ctx: exit level 0
2013/10/10 10:21:28 kid3| ctx: enter level 0:
'http://mail.qq.com/cgi-bin/readmail?folderid=8&folderkey=8&t=readmail_group&mailid=@07d26c3f0101&mode=pre&maxage=3600&base=12.19&ver=19870&sid=NuX4cvD-5bfhMzVn'
2013/10/10 10:21:28 kid3| WARNING: unparseable HTTP header field {share
memory not exist, need create new share memory!}
2013/10/10 10:21:28 kid2| ctx: exit level 0
2013/10/10 10:21:28 kid2| ctx: enter level 0:
'http://mail.qq.com/cgi-bin/readmail?folderid=8&folderkey=8&t=readmail_group&mailid=@11454ff0007f&mode=pre&maxage=3600&base=12.19&ver=10557&sid=NuX4cvD-5bfhMzVn'
2013/10/10 10:21:28 kid2| WARNING: unparseable HTTP header field {share
memory not exist, need create new share memory!}
2013/10/10 10:21:28 kid2| WARNING: unparseable HTTP header field {share
memory not exist, need create new share memory!}
2013/10/10 10:21:29 kid3| ctx: exit level 0
2013/10/10 10:21:29 kid3| ctx: enter level 0:
'http://mail.qq.com/cgi-bin/readmail?folderid=8&folderkey=8&t=readmail_group&mailid=@07d26c3f0100&mode=pre&maxage=3600&base=12.19&ver=13816&sid=NuX4cvD-5bfhMzVn'
2013/10/10 10:21:29 kid3| WARNING: unparseable HTTP header field {share
memory not exist, need create new share memory!}
2013/10/10 10:32:19 kid1| ctx: exit level 0
2013/10/10 10:32:19 kid1| ctx: enter level 0:
'http://qqtx.qq.com/cgi-bin/my_subscribe_item_list?g_tk=972033847&uin=0175209199&src=1&scope=qqclient&nottest=1&qzreferrer=http%3A%2F%2Fqzs.qq.com%2Fsnsapp%2Fapp%2Fbee%2Fclient%2Fa1.html'
Server: QZHTTP-2.38.17}1| WARNING: suspicious CR characters in HTTP header
{Keep-Alive: timeout=5184000, max=1024
2013/10/10 10:32:19 kid1| ctx: exit level 0
2013/10/10 10:32:19 kid1| ctx: enter level 0:
'http://qqtx.qq.com/cgi-bin/my_subscribe_item_detail?g_tk=972033847&uin=0175209199&src=1&scope=qqclient&nottest=1&ids=&qzreferrer=http%3A%2F%2Fqzs.qq.com%2Fsnsapp%2Fapp%2Fbee%2Fclient%2Fa1.html'
Server: QZHTTP-2.38.17}1| WARNING: suspicious CR characters in HTTP header
{Keep-Alive: timeout=5184000, max=1024
2013/10/10 10:46:53 kid3| ctx: exit level 0
2013/10/10 10:46:53 kid3| SECURITY ALERT: Missing hostname in URL 'http://'.
see access.log for detail

have some on to help me?

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