ip_conntrack locks up hard on 2.4.0 after about 10 hours

[safemode]

It seems that for one reason or another, ip_conntrack totally locks (not
removeable) after about 10 hours of continued use.  All i found were
these messages in my dmesg output
Jan  6 06:18:10 icebox kernel: reset_xmit_timer sk=c17fd040 1
when=0x5d9e, caller=c01a6bf1
Jan  6 06:18:10 icebox kernel: reset_xmit_timer sk=c17fd040 1
when=0x5b2f, caller=c01a6bf1
Jan  6 06:18:10 icebox kernel: reset_xmit_timer sk=c17fd040 1
when=0x56bb, caller=c01a6bf1
Jan  6 06:40:10 icebox kernel: reset_xmit_timer sk=c17fd040 1
when=0x217db, caller=c01a6bf1
Jan  6 06:40:10 icebox kernel: reset_xmit_timer sk=c17fd040 1
when=0x2363e, caller=c01a6bf1
Jan  6 06:40:10 icebox kernel: reset_xmit_timer sk=c17fd040 1
when=0x21b64, caller=c01a6bf1
Jan  6 06:40:10 icebox kernel: reset_xmit_timer sk=c17fd040 1
when=0x1fa85, caller=c01a6bf1

This makes it impossible to make any sort of network socket connection
and all prior connections died.  As i said you cannot remove the module
to reset ip_conntrack and i'm not sure what could have caused this as it
did work up until i woke up this morning, with a total running time of
about 10 hours or so.  I'd consider this bug rather important, if anyone
thinks this is not an ip_conntrack bug and rather something that has
changed that i havn't read about, help would be nice. :)    i have been
using iptables since it came out though and ip_conntrack has only been
bad once before,   on test5 when it wouldn't kill old dead socket
connections and eventually starved itself of free sockets.