[Bug 40] system hangs, Availability problems, maybe conntrack bug, possible reason here.

Wed, 12 Feb 2003 12:48:32 +0100

https://bugzilla.netfilter.org/cgi-bin/bugzilla/show_bug.cgi?id=40

------- Additional Comments From luismi@b2bi.es  2003-02-12 12:48 -------
# cat /proc/sys/net/ipv4/ip_conntrack_max
24000

I increase the ram into that box but it still have memory problems.
I modified /etc/sysctl.conf, here is a copy of 'sysctl -a':

abi.fake_utsname = 0
abi.trace = 0
abi.defhandler_libcso = 68157441
abi.defhandler_lcall7 = 68157441
abi.defhandler_elf = 0
abi.defhandler_coff = 117440515
dev.cdrom.check_media = 0
dev.cdrom.lock = 1
dev.cdrom.debug = 0
dev.cdrom.autoeject = 0
dev.cdrom.autoclose = 1
dev.cdrom.info = CD-ROM information, Id: cdrom.c 3.12 2000/10/18
dev.cdrom.info = 
dev.cdrom.info = drive name:	
dev.cdrom.info = drive speed:	
dev.cdrom.info = drive # of slots:
dev.cdrom.info = Can close tray:	
dev.cdrom.info = Can open tray:	
dev.cdrom.info = Can lock tray:	
dev.cdrom.info = Can change speed:
dev.cdrom.info = Can select disk:
dev.cdrom.info = Can read multisession:
dev.cdrom.info = Can read MCN:	
dev.cdrom.info = Reports media changed:
dev.cdrom.info = Can play audio:	
dev.cdrom.info = Can write CD-R:	
dev.cdrom.info = Can write CD-RW:
dev.cdrom.info = Can read DVD:	
dev.cdrom.info = Can write DVD-R:
dev.cdrom.info = Can write DVD-RAM:
dev.cdrom.info = 
dev.cdrom.info = 
net.unix.max_dgram_qlen = 10
net.ipv4.ip_conntrack_max = 24000
net.ipv4.conf.vlan4.arp_filter = 0
net.ipv4.conf.vlan4.tag = 0
net.ipv4.conf.vlan4.log_martians = 0
net.ipv4.conf.vlan4.bootp_relay = 0
net.ipv4.conf.vlan4.medium_id = 0
net.ipv4.conf.vlan4.proxy_arp = 0
net.ipv4.conf.vlan4.accept_source_route = 1
net.ipv4.conf.vlan4.send_redirects = 1
net.ipv4.conf.vlan4.rp_filter = 1
net.ipv4.conf.vlan4.shared_media = 1
net.ipv4.conf.vlan4.secure_redirects = 1
net.ipv4.conf.vlan4.accept_redirects = 1
net.ipv4.conf.vlan4.mc_forwarding = 0
net.ipv4.conf.vlan4.forwarding = 1
net.ipv4.conf.vlan3.arp_filter = 0
net.ipv4.conf.vlan3.tag = 0
net.ipv4.conf.vlan3.log_martians = 0
net.ipv4.conf.vlan3.bootp_relay = 0
net.ipv4.conf.vlan3.medium_id = 0
net.ipv4.conf.vlan3.proxy_arp = 0
net.ipv4.conf.vlan3.accept_source_route = 1
net.ipv4.conf.vlan3.send_redirects = 1
net.ipv4.conf.vlan3.rp_filter = 1
net.ipv4.conf.vlan3.shared_media = 1
net.ipv4.conf.vlan3.secure_redirects = 1
net.ipv4.conf.vlan3.accept_redirects = 1
net.ipv4.conf.vlan3.mc_forwarding = 0
net.ipv4.conf.vlan3.forwarding = 1
net.ipv4.conf.vlan2.arp_filter = 0
net.ipv4.conf.vlan2.tag = 0
net.ipv4.conf.vlan2.log_martians = 0
net.ipv4.conf.vlan2.bootp_relay = 0
net.ipv4.conf.vlan2.medium_id = 0
net.ipv4.conf.vlan2.proxy_arp = 0
net.ipv4.conf.vlan2.accept_source_route = 1
net.ipv4.conf.vlan2.send_redirects = 1
net.ipv4.conf.vlan2.rp_filter = 1
net.ipv4.conf.vlan2.shared_media = 1
net.ipv4.conf.vlan2.secure_redirects = 1
net.ipv4.conf.vlan2.accept_redirects = 1
net.ipv4.conf.vlan2.mc_forwarding = 0
net.ipv4.conf.vlan2.forwarding = 1
net.ipv4.conf.eth4.arp_filter = 0
net.ipv4.conf.eth4.tag = 0
net.ipv4.conf.eth4.log_martians = 0
net.ipv4.conf.eth4.bootp_relay = 0
net.ipv4.conf.eth4.medium_id = 0
net.ipv4.conf.eth4.proxy_arp = 0
net.ipv4.conf.eth4.accept_source_route = 1
net.ipv4.conf.eth4.send_redirects = 1
net.ipv4.conf.eth4.rp_filter = 1
net.ipv4.conf.eth4.shared_media = 1
net.ipv4.conf.eth4.secure_redirects = 1
net.ipv4.conf.eth4.accept_redirects = 1
net.ipv4.conf.eth4.mc_forwarding = 0
net.ipv4.conf.eth4.forwarding = 1
net.ipv4.conf.eth3.arp_filter = 0
net.ipv4.conf.eth3.tag = 0
net.ipv4.conf.eth3.log_martians = 0
net.ipv4.conf.eth3.bootp_relay = 0
net.ipv4.conf.eth3.medium_id = 0
net.ipv4.conf.eth3.proxy_arp = 0
net.ipv4.conf.eth3.accept_source_route = 1
net.ipv4.conf.eth3.send_redirects = 1
net.ipv4.conf.eth3.rp_filter = 1
net.ipv4.conf.eth3.shared_media = 1
net.ipv4.conf.eth3.secure_redirects = 1
net.ipv4.conf.eth3.accept_redirects = 1
net.ipv4.conf.eth3.mc_forwarding = 0
net.ipv4.conf.eth3.forwarding = 1
net.ipv4.conf.eth0.arp_filter = 0
net.ipv4.conf.eth0.tag = 0
net.ipv4.conf.eth0.log_martians = 0
net.ipv4.conf.eth0.bootp_relay = 0
net.ipv4.conf.eth0.medium_id = 0
net.ipv4.conf.eth0.proxy_arp = 0
net.ipv4.conf.eth0.accept_source_route = 1
net.ipv4.conf.eth0.send_redirects = 1
net.ipv4.conf.eth0.rp_filter = 1
net.ipv4.conf.eth0.shared_media = 1
net.ipv4.conf.eth0.secure_redirects = 1
net.ipv4.conf.eth0.accept_redirects = 1
net.ipv4.conf.eth0.mc_forwarding = 0
net.ipv4.conf.eth0.forwarding = 1
net.ipv4.conf.lo.arp_filter = 0
net.ipv4.conf.lo.tag = 0
net.ipv4.conf.lo.log_martians = 0
net.ipv4.conf.lo.bootp_relay = 0
net.ipv4.conf.lo.medium_id = 0
net.ipv4.conf.lo.proxy_arp = 0
net.ipv4.conf.lo.accept_source_route = 1
net.ipv4.conf.lo.send_redirects = 1
net.ipv4.conf.lo.rp_filter = 1
net.ipv4.conf.lo.shared_media = 1
net.ipv4.conf.lo.secure_redirects = 1
net.ipv4.conf.lo.accept_redirects = 1
net.ipv4.conf.lo.mc_forwarding = 0
net.ipv4.conf.lo.forwarding = 1
net.ipv4.conf.default.arp_filter = 0
net.ipv4.conf.default.tag = 0
net.ipv4.conf.default.log_martians = 0
net.ipv4.conf.default.bootp_relay = 0
net.ipv4.conf.default.medium_id = 0
net.ipv4.conf.default.proxy_arp = 0
net.ipv4.conf.default.accept_source_route = 1
net.ipv4.conf.default.send_redirects = 1
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.shared_media = 1
net.ipv4.conf.default.secure_redirects = 1
net.ipv4.conf.default.accept_redirects = 1
net.ipv4.conf.default.mc_forwarding = 0
net.ipv4.conf.default.forwarding = 1
net.ipv4.conf.all.arp_filter = 0
net.ipv4.conf.all.tag = 0
net.ipv4.conf.all.log_martians = 1
net.ipv4.conf.all.bootp_relay = 0
net.ipv4.conf.all.medium_id = 0
net.ipv4.conf.all.proxy_arp = 0
net.ipv4.conf.all.accept_source_route = 0
net.ipv4.conf.all.send_redirects = 1
net.ipv4.conf.all.rp_filter = 0
net.ipv4.conf.all.shared_media = 1
net.ipv4.conf.all.secure_redirects = 1
net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.all.mc_forwarding = 0
net.ipv4.conf.all.forwarding = 1
net.ipv4.neigh.vlan4.locktime = 100
net.ipv4.neigh.vlan4.proxy_delay = 80
net.ipv4.neigh.vlan4.anycast_delay = 100
net.ipv4.neigh.vlan4.proxy_qlen = 64
net.ipv4.neigh.vlan4.unres_qlen = 3
net.ipv4.neigh.vlan4.gc_stale_time = 60
net.ipv4.neigh.vlan4.delay_first_probe_time = 5
net.ipv4.neigh.vlan4.base_reachable_time = 30
net.ipv4.neigh.vlan4.retrans_time = 100
net.ipv4.neigh.vlan4.app_solicit = 0
net.ipv4.neigh.vlan4.ucast_solicit = 3
net.ipv4.neigh.vlan4.mcast_solicit = 3
net.ipv4.neigh.vlan3.locktime = 100
net.ipv4.neigh.vlan3.proxy_delay = 80
net.ipv4.neigh.vlan3.anycast_delay = 100
net.ipv4.neigh.vlan3.proxy_qlen = 64
net.ipv4.neigh.vlan3.unres_qlen = 3
net.ipv4.neigh.vlan3.gc_stale_time = 60
net.ipv4.neigh.vlan3.delay_first_probe_time = 5
net.ipv4.neigh.vlan3.base_reachable_time = 30
net.ipv4.neigh.vlan3.retrans_time = 100
net.ipv4.neigh.vlan3.app_solicit = 0
net.ipv4.neigh.vlan3.ucast_solicit = 3
net.ipv4.neigh.vlan3.mcast_solicit = 3
net.ipv4.neigh.vlan2.locktime = 100
net.ipv4.neigh.vlan2.proxy_delay = 80
net.ipv4.neigh.vlan2.anycast_delay = 100
net.ipv4.neigh.vlan2.proxy_qlen = 64
net.ipv4.neigh.vlan2.unres_qlen = 3
net.ipv4.neigh.vlan2.gc_stale_time = 60
net.ipv4.neigh.vlan2.delay_first_probe_time = 5
net.ipv4.neigh.vlan2.base_reachable_time = 30
net.ipv4.neigh.vlan2.retrans_time = 100
net.ipv4.neigh.vlan2.app_solicit = 0
net.ipv4.neigh.vlan2.ucast_solicit = 3
net.ipv4.neigh.vlan2.mcast_solicit = 3
net.ipv4.neigh.eth4.locktime = 100
net.ipv4.neigh.eth4.proxy_delay = 80
net.ipv4.neigh.eth4.anycast_delay = 100
net.ipv4.neigh.eth4.proxy_qlen = 64
net.ipv4.neigh.eth4.unres_qlen = 3
net.ipv4.neigh.eth4.gc_stale_time = 60
net.ipv4.neigh.eth4.delay_first_probe_time = 5
net.ipv4.neigh.eth4.base_reachable_time = 30
net.ipv4.neigh.eth4.retrans_time = 100
net.ipv4.neigh.eth4.app_solicit = 0
net.ipv4.neigh.eth4.ucast_solicit = 3
net.ipv4.neigh.eth4.mcast_solicit = 3
net.ipv4.neigh.eth3.locktime = 100
net.ipv4.neigh.eth3.proxy_delay = 80
net.ipv4.neigh.eth3.anycast_delay = 100
net.ipv4.neigh.eth3.proxy_qlen = 64
net.ipv4.neigh.eth3.unres_qlen = 3
net.ipv4.neigh.eth3.gc_stale_time = 60
net.ipv4.neigh.eth3.delay_first_probe_time = 5
net.ipv4.neigh.eth3.base_reachable_time = 30
net.ipv4.neigh.eth3.retrans_time = 100
net.ipv4.neigh.eth3.app_solicit = 0
net.ipv4.neigh.eth3.ucast_solicit = 3
net.ipv4.neigh.eth3.mcast_solicit = 3
net.ipv4.neigh.eth0.locktime = 100
net.ipv4.neigh.eth0.proxy_delay = 80
net.ipv4.neigh.eth0.anycast_delay = 100
net.ipv4.neigh.eth0.proxy_qlen = 64
net.ipv4.neigh.eth0.unres_qlen = 3
net.ipv4.neigh.eth0.gc_stale_time = 60
net.ipv4.neigh.eth0.delay_first_probe_time = 5
net.ipv4.neigh.eth0.base_reachable_time = 30
net.ipv4.neigh.eth0.retrans_time = 100
net.ipv4.neigh.eth0.app_solicit = 0
net.ipv4.neigh.eth0.ucast_solicit = 3
net.ipv4.neigh.eth0.mcast_solicit = 3
net.ipv4.neigh.lo.locktime = 100
net.ipv4.neigh.lo.proxy_delay = 80
net.ipv4.neigh.lo.anycast_delay = 100
net.ipv4.neigh.lo.proxy_qlen = 64
net.ipv4.neigh.lo.unres_qlen = 3
net.ipv4.neigh.lo.gc_stale_time = 60
net.ipv4.neigh.lo.delay_first_probe_time = 5
net.ipv4.neigh.lo.base_reachable_time = 30
net.ipv4.neigh.lo.retrans_time = 100
net.ipv4.neigh.lo.app_solicit = 0
net.ipv4.neigh.lo.ucast_solicit = 3
net.ipv4.neigh.lo.mcast_solicit = 3
net.ipv4.neigh.default.gc_thresh3 = 1024
net.ipv4.neigh.default.gc_thresh2 = 512
net.ipv4.neigh.default.gc_thresh1 = 128
net.ipv4.neigh.default.gc_interval = 30
net.ipv4.neigh.default.locktime = 100
net.ipv4.neigh.default.proxy_delay = 80
net.ipv4.neigh.default.anycast_delay = 100
net.ipv4.neigh.default.proxy_qlen = 64
net.ipv4.neigh.default.unres_qlen = 3
net.ipv4.neigh.default.gc_stale_time = 60
net.ipv4.neigh.default.delay_first_probe_time = 5
net.ipv4.neigh.default.base_reachable_time = 30
net.ipv4.neigh.default.retrans_time = 100
net.ipv4.neigh.default.app_solicit = 0
net.ipv4.neigh.default.ucast_solicit = 3
net.ipv4.neigh.default.mcast_solicit = 3
net.ipv4.tcp_tw_reuse = 0
net.ipv4.icmp_ratemask = 6168
net.ipv4.icmp_ratelimit = 100
net.ipv4.tcp_adv_win_scale = 2
net.ipv4.tcp_app_win = 31
net.ipv4.tcp_rmem = 4096	87380	174760
net.ipv4.tcp_wmem = 4096	16384	131072
net.ipv4.tcp_mem = 48128	48640	49152
net.ipv4.tcp_dsack = 1
net.ipv4.tcp_ecn = 1
net.ipv4.tcp_reordering = 3
net.ipv4.tcp_fack = 1
net.ipv4.tcp_orphan_retries = 0
net.ipv4.inet_peer_gc_maxtime = 120
net.ipv4.inet_peer_gc_mintime = 10
net.ipv4.inet_peer_maxttl = 600
net.ipv4.inet_peer_minttl = 120
net.ipv4.inet_peer_threshold = 65664
net.ipv4.igmp_max_memberships = 20
net.ipv4.route.min_adv_mss = 256
net.ipv4.route.min_pmtu = 552
net.ipv4.route.mtu_expires = 600
net.ipv4.route.gc_elasticity = 8
net.ipv4.route.error_burst = 500
net.ipv4.route.error_cost = 100
net.ipv4.route.redirect_silence = 2048
net.ipv4.route.redirect_number = 9
net.ipv4.route.redirect_load = 2
net.ipv4.route.gc_interval = 60
net.ipv4.route.gc_timeout = 300
net.ipv4.route.gc_min_interval = 5
net.ipv4.route.max_size = 32768
net.ipv4.route.gc_thresh = 2048
net.ipv4.route.max_delay = 10
net.ipv4.route.min_delay = 2
net.ipv4.icmp_ignore_bogus_error_responses = 1
net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.icmp_echo_ignore_all = 0
net.ipv4.ip_local_port_range = 32768	61000
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_rfc1337 = 0
net.ipv4.tcp_stdurg = 0
net.ipv4.tcp_abort_on_overflow = 0
net.ipv4.tcp_tw_recycle = 0
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_retries2 = 15
net.ipv4.tcp_retries1 = 3
net.ipv4.tcp_keepalive_intvl = 75
net.ipv4.tcp_keepalive_probes = 9
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.ipfrag_time = 30
net.ipv4.ip_dynaddr = 0
net.ipv4.ipfrag_low_thresh = 196608
net.ipv4.ipfrag_high_thresh = 262144
net.ipv4.tcp_max_tw_buckets = 180000
net.ipv4.tcp_max_orphans = 8192
net.ipv4.tcp_synack_retries = 5
net.ipv4.tcp_syn_retries = 5
net.ipv4.ip_nonlocal_bind = 0
net.ipv4.ip_no_pmtu_disc = 0
net.ipv4.ip_autoconfig = 0
net.ipv4.ip_default_ttl = 64
net.ipv4.ip_forward = 1
net.ipv4.tcp_retrans_collapse = 1
net.ipv4.tcp_sack = 0
net.ipv4.tcp_window_scaling = 0
net.ipv4.tcp_timestamps = 0
net.core.hot_list_length = 128
net.core.optmem_max = 10240
net.core.message_burst = 50
net.core.message_cost = 5
net.core.mod_cong = 290
net.core.lo_cong = 100
net.core.no_cong = 20
net.core.no_cong_thresh = 20
net.core.netdev_max_backlog = 300
net.core.rmem_default = 65535
net.core.wmem_default = 65535
net.core.rmem_max = 65535
net.core.wmem_max = 65535
vm.max_map_count = 65536
vm.max-readahead = 31
vm.min-readahead = 3
vm.page-cluster = 3
vm.pagetable_cache = 25	50
vm.kswapd = 512	32	8
vm.overcommit_memory = 0
vm.bdflush = 30	500	0	0	500	3000	60	20	0
kernel.overflowgid = 65534
kernel.overflowuid = 65534
kernel.random.uuid = ef9237af-9de9-4a53-816e-9dcf4fb07c4b
kernel.random.boot_id = 82646a01-c505-4406-8ba0-733a091eeb53
kernel.random.write_wakeup_threshold = 128
kernel.random.read_wakeup_threshold = 8
kernel.random.entropy_avail = 4096
kernel.random.poolsize = 512
kernel.threads-max = 4079
kernel.cad_pid = 1
kernel.sem = 250	32000	32	128
kernel.msgmnb = 16384
kernel.msgmni = 16
kernel.msgmax = 8192
kernel.shmmni = 4096
kernel.shmall = 2097152
kernel.shmmax = 33554432
kernel.rtsig-max = 1024
kernel.rtsig-nr = 0
kernel.acct = 4	2	30
kernel.hotplug = /sbin/hotplug
kernel.modprobe = /sbin/modprobe
kernel.printk = 6	4	1	7
kernel.ctrl-alt-del = 0
kernel.cap-bound = -257
kernel.tainted = 0
kernel.core_uses_pid = 1
kernel.panic = 0
kernel.domainname = (none)
kernel.hostname = fw-inet1.b2bi.es
kernel.version = #2 lun feb 3 16:09:03 CET 2003
kernel.osrelease = 2.4.19-FW6
kernel.ostype = Linux
fs.lease-break-time = 45
fs.dir-notify-enable = 1
fs.leases-enable = 1
fs.overflowgid = 65534
fs.overflowuid = 65534
fs.dentry-state = 37843	36108	45	0	0	0
fs.dquot-nr = 0	0
fs.file-max = 8192
fs.file-nr = 249	121	8192
fs.inode-state = 32520	0	0	0	0	0	0
fs.inode-nr = 32520	0

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