>.... >.... > I looked through dmesg and /var/adm/messages but found no hints. > > I tried boosting tcp parameters too but no effect. > > ndd -set /dev/tcp tcp_conn_req_max_q 512 > ndd -set /dev/tcp tcp_conn_req_max_q0 10240 > ndd -set /dev/tcp tcp_rexmit_interval_initial 3000 > ndd -set /dev/tcp tcp_rexmit_interval_min 2000 > ndd -set /dev/tcp tcp_ip_abort_interval 600000 > ndd -set /dev/tcp tcp_ip_abort_cinterval 60000 > ndd -set /dev/tcp tcp_rexmit_interval_max 60000 > ndd -set /dev/tcp tcp_keepalive_interval 3600000 > ndd -set /dev/tcp tcp_fin_wait_2_flush_interval 67500 > ndd -set /dev/tcp tcp_time_wait_interval 60000 > ndd -set /dev/ip ip_icmp_err_interval 0 > ndd -set /dev/ip ip_forward_src_routed 0 > ndd -set /dev/tcp tcp_smallest_anon_port 8192 > ndd -set /dev/udp udp_smallest_anon_port 8192 > ndd -set /dev/tcp tcp_xmit_hiwat 32768 > > Machine have 2GB RAM and 2 cpu so is clearly enough to run squid. > "ulimit -Hn" reports 65536, so there is plenty of file descriptors. > Checkout the hints in : http://www.adminschoice.com/docs/solaris_error_messages_o_s.htm#errno180 M.