[squid-users] DNS problems?

I'm seeing 'fqdncacheParse: No PTR record' in cache.log quite
frequently. The DNS section of cachemgr has the following and the squid
process has just died. We've been seeing slowdowns and I wonder if this
is all related. I saw a couple of things in the archives about the PTR
record thing indicating bad DNS config but I see nothing about what the
long list below means.

Squid Cache: Version 2.5.STABLE5
configure options: --prefix=/usr --exec-prefix=/usr
--sysconfdir=/etc/squid --libexecdir=/usr/libexec/squid
--sharedstatedir=/var/squid/com --localstatedir=/var/squid
--libdir=/usr/lib/squid --enable-gnuregex
--enable-storeio=ufs,aufs,diskd --with-pthreads
--enable-removal-policies=lru,heap --enable-icmp --enable-delay-pools
--enable-useragent-log --enable-referer-log --enable-xmalloc-statistics
--enable-kill-parent-hack --enable-snmp
--enable-cachemgr-hostname=squid.lpsd.local --enable-htcp --enable-ssl
--enable-cache-digests --enable-linux-netfilter --enable-auth=basic,ntlm
--enable-basic-auth-helpers=getpwnam,LDAP,MSNT,NCSA,PAM,SMB,winbind
--enable-ntlm-auth-helpers=fakeauth,no_check,SMB,winbind
--enable-ntlm-fail-open --enable-x-accelerator-vary --enable-carp

This is my first attempt at compiling squid from source. Have I missed
something? What part of squid.conf might you need? We're running as a
transparent proxy with 67 squidGuard redirectors ( at the suggestion of
squid itself in cache.log).

Internal DNS Statistics:

The Queue:
                       DELAY SINCE
  ID SIZE SENDS FIRST SEND LAST SEND
------ ---- ----- ---------- ---------
0x0161 45 2 17.304 0.514
0x0160 45 2 17.304 0.514
0x0140 44 5 18.537 0.514
0x013f 44 5 18.537 0.514
0x0134 44 4 19.091 0.514
0x012e 45 5 19.136 0.514
0x012d 45 5 19.136 0.514
0x0115 44 5 19.924 0.514
0x0114 44 5 19.924 0.514
0x00be 45 2 20.468 0.514
0x00bd 45 2 20.468 0.514
0x00a6 45 2 20.536 0.514
0x00a5 45 2 20.536 0.514
0x008d 45 5 20.963 0.514
0x008c 45 5 20.963 0.514
0x008b 45 5 21.082 0.514
0x008a 45 5 21.082 0.514
0x0089 44 4 21.089 0.514
0x0088 46 7 21.089 0.514
0x0087 46 7 21.089 0.514
0x0086 45 8 21.089 0.514
0x0085 45 8 21.089 0.514
0x005a 45 4 23.090 0.514
0x0059 45 4 23.090 0.514
0xfe26 46 8 34.088 0.514
0xfe25 46 8 34.088 0.514
0xfe24 45 8 34.088 0.514
0xfe23 45 8 34.088 0.514
0xfcc8 45 8 41.828 0.514
0xfc1b 45 8 43.825 0.514
0x02a5 46 2 0.514 0.514
0x02a4 46 2 0.514 0.514
0x02a3 44 2 0.514 0.514
0x02a2 44 2 0.514 0.514
0x02a1 45 5 0.514 0.514
0x02a0 45 5 0.514 0.514
0x029d 45 6 0.545 0.545
0x029c 45 6 0.545 0.545
0x029b 45 2 0.545 0.545
0x029a 45 2 0.545 0.545
0x0299 43 2 0.545 0.545
0x0298 43 2 0.545 0.545
0x0295 46 2 10.094 10.094
0x0294 46 2 10.094 10.094
0x0293 46 2 10.094 10.094
0x0292 46 2 10.094 10.094
0x0290 44 1 10.273 10.273
0x028f 44 1 10.273 10.273
0x0283 44 1 10.800 10.800
0x0282 44 1 10.800 10.800
0x0281 45 4 10.911 10.911
0x0280 45 4 10.911 10.911
0x0272 45 4 11.508 11.508
0x026e 45 4 11.681 11.681
0x026c 43 1 11.715 11.715
0x025e 43 1 12.061 12.061
0x0238 44 1 13.186 13.186
0x01fa 46 1 14.678 14.678
0x01f9 46 1 14.678 14.678
0x01f2 44 1 14.714 14.714
0x01f1 44 1 14.714 14.714
0x01e4 45 1 14.759 14.759
0x01e3 45 1 14.759 14.759
0x01d8 45 1 14.818 14.818
0x01d7 45 1 14.818 14.818
0x01d2 46 1 14.859 14.859
0x01d1 46 1 14.859 14.859
0x0172 44 4 16.546 16.546
0x0171 44 4 16.546 16.546
0x0169 43 1 16.831 16.831
0x0168 43 1 16.831 16.831
0xff7a 45 7 27.087 16.930
0xff79 45 7 27.091 16.930
0xff78 45 7 27.091 16.930
0xff77 45 7 27.091 16.930
0xff76 45 7 27.091 16.930
0xff75 45 7 27.091 16.930
0xff72 45 7 27.091 16.930
0xff71 45 7 27.091 16.930

Nameservers:
IP ADDRESS # QUERIES # REPLIES
--------------- --------- ---------
10.189.16.101 148165 147570
10.189.16.102 5656 5220
172.16.1.9 3040 2899

Rcode Matrix:
RCODE ATTEMPT1 ATTEMPT2 ATTEMPT3
    0 2949047 133 167
    1 0 0 0
    2 51044 50534 50155
    3 830896 361 174
    4 0 0 0
    5 0 0 0

Thanks very much.

-- 
Mike Rambo
mrambo@lsd.k12.mi.us