[squid-users] Another wired parseHttpRequest

I've gotten 2.4-STABLE1 to work with kernel 2.4.2 in transparent proxy
(WCCP) and talking
with siblings of the same config, but when i mix a 2.4-STABLE1 with
2.3-DEVEL3 silbings,
somehow the 2.4-STABLE1 would go down after a few hours.
The below are found in the cache.log any ideas?

2001/03/30 16:30:20| parseHttpRequest: Unsupported method 'If-Modified-Since:'
2001/03/30 16:30:20| clientReadRequest: FD 45 Invalid Request
2001/03/30 16:30:20| clientSendMoreData: Deferring
error:unsupported-request-met
hod
2001/03/30 16:30:33| parseHttpRequest: Unsupported method 'If-Modified-Since:'
2001/03/30 16:30:33| clientReadRequest: FD 37 Invalid Request
2001/03/30 16:30:33| clientSendMoreData: Deferring
error:unsupported-request-met
hod
Received on Thu Mar 29 2001 - 18:48:48 MST