#19438: Cause kernel panic by executing `/etc/init.d/network restart` in
net.bridge
.bridge-nf-call-iptables=1 enviroment
--------------------+-----------------------------------
Reporter: pizz@… | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone: Barrier Breaker 14.07
Component: kernel | Version: Barrier Breaker 14.07
Keywords: |
--------------------+-----------------------------------
In net.bridge.bridge-nf-call-iptables(or ip6tables)=1 system,
execute `/etc/init.d/network restart` to always causes kernel panic.
when wrote "net.bridge.bridge-nf-call-iptables=1" to /etc/sysctl.conf,
reboot loop happened.
and all ethernet cables is unplugged,those problems not occurred.
{{{
_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
-----------------------------------------------------
BARRIER BREAKER (14.07, r42625)
-----------------------------------------------------
* 1/2 oz Galliano Pour all ingredients into
* 4 oz cold Coffee an irish coffee mug filled
* 1 1/2 oz Dark Rum with crushed ice. Stir.
* 2 tsp. Creme de Cacao
-----------------------------------------------------
root@OpenWrt:~# cat /tmp/sysinfo/*
ap135-020
Atheros AP135-020 reference board
root@OpenWrt:~#
}}}
{{{
root@OpenWrt:~# echo 1 > /proc/sys/net/bridge/bridge-nf-call-iptables
root@OpenWrt:~# ls /proc/sys/net/bridge/bridge-nf-*tables > /dev/kmsg
root@OpenWrt:~# cat /proc/sys/net/bridge/bridge-nf-*tables > /dev/kmsg
root@OpenWrt:~# /etc/init.d/network restart
Write failed: Connection reset by peer
}}}
{{{
root@OpenWrt:~# cat /sys/kernel/debug/crashlog
Time: 1428500945.600099
Modules: ath9k@832e0000+15931 ath9k_common@83178000+2cad
pppoe@831b6000+1e40 ppp_async@83264000+1800 iptable_nat@8314e000+7b0
ath9k_hw@83280000+4ce3f ath@83138000+4d05 pppox@83127000+53a
ppp_generic@83148000+4cb2 nf_nat_ipv4@830f6000+a5e
nf_conntrack_ipv4@83256000+1444mac80211@83200000+54851
ipt_MASQUERADE@83143000+470
ebtable_nat@830f1000+390ebtable_filter@8312f000+390
ebtable_broute@83144000+2f0 cfg80211@83180000+30447
xt_time@830f7000+680 xt_tcpudp@830f5000+690 xt_state@830ea000+2b0
xt_quota@830ef000+2e0 xt_pkttype@830ec000+260 xt_physdev@830e4000+530
xt_owner@830e8000+2b0 xt_nat@830e6000+430 xt_multiport@830e3000+4a0
xt_mark@830e1000+2a0 xt_mac@830d9000+260 xt_limit@830de000+3e0
xt_id@830da000+1e0 xt_conntrack@830d3000+870
xt_comment@830cf000+1e0 xt_addrtype@830d6000+850
xt_TCPMSS@830cb000+a70 xt_REDIRECT@830ca000+420
xt_LOG@830d0000+2510 xt_CT@830c2000+8e0 slhc@830c8000+10cb
nf_nat_irc@830c7000+3d0 nf_nat_ftp@83072000+4b0 nf_nat@830c4000+2960
nf_defrag_ipv4@83028000+316 nf_conntrack_irc@8307f000+ae0
nf_conntrack_ftp@83064000+1400 iptable_raw@8307e000+280
iptable_mangle@8307d000+3c0 iptable_filter@83063000+2d0
ipt_REJECT@83078000+710 ip_tables@83024000+23ed ebtables@83020000+37e5
ebt_vlan@83071000+380 ebt_stp@83066000+710 ebt_redirect@83062000+340
ebt_pkttype@83033000+210 ebt_mark_m@83037000+250 ebt_mark@83031000+290
ebt_limit@83032000+390 ebt_among@8303a000+830 ebt_802_3@83030000+2b0
crc_ccitt@83b8b000+3fb compat@83068000+7c4 ip6t_REJECT@8303c000+7f0
ip6table_raw@830bd000+240 ip6table_mangle@8304b000+420
ip6table_filter@83046000+290 ip6_tables@8306c000+2391
x_tables@83048000+2af5
nf_conntrack_ipv6@8305c000+15b0nf_conntrack@83050000+b3be
nf_defrag_ipv6@83bac000+2207 ipv6@83080000+3cc6c arc4@83ba3000+520
crypto_blkcipher@83b94000+2887 usb_storage@83b60000+8d98
ehci_platform@83b18000+750 ehci_hcd@83af8000+783c
sd_mod@83b58000+5ff0 scsi_mod@83b40000+12c42
gpio_button_hotplug@83af4000+1160 usbcore@83b20000+1acd5
nls_base@83ade000+136e usb_common@83ad9000+488
!!!!!!!!!!!!!!!!!snipped!!!!!!!!!!!!!!!!!
<12>[ 693.950000] /proc/sys/net/bridge/bridge-nf-call-arptables
<12>[ 693.950000] /proc/sys/net/bridge/bridge-nf-call-ip6tables
<12>[ 693.950000] /proc/sys/net/bridge/bridge-nf-call-iptables
<12>[ 701.330000] 0
<12>[ 701.330000] 0
<12>[ 701.330000] 1
<6>[ 710.410000] br-lan: port 2(eth1) entered disabled state
<6>[ 710.410000] br-lan: port 1(eth0) entered disabled state
<6>[ 710.420000] device eth0 left promiscuous mode
<6>[ 710.420000] br-lan: port 1(eth0) entered disabled state
<6>[ 710.430000] eth0: link down
<6>[ 710.430000] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
<6>[ 710.450000] device eth1 left promiscuous mode
<6>[ 710.450000] br-lan: port 2(eth1) entered disabled state
<6>[ 710.460000] eth1: link down
<6>[ 710.460000] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
<6>[ 713.470000] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
<6>[ 713.470000] device eth0 entered promiscuous mode
<6>[ 713.480000] IPv6: ADDRCONF(NETDEV_UP): br-lan: link is not ready
<6>[ 713.510000] eth1: link up (1000Mbps/Full duplex)
<6>[ 713.510000] device eth1 entered promiscuous mode
<1>[ 713.850000] CPU 0 Unable to handle kernel paging request at virtual
address 00000004, epc == 800a9a54, ra == 802405dc
<4>[ 713.850000] Oops[#1]:
<4>[ 713.850000] CPU: 0 PID: 1571 Comm: fw3 Not tainted 3.10.49 #3
<4>[ 713.850000] task: 839154f0 ti: 82cb0000 task.ti: 82cb0000
<4>[ 713.850000] $ 0 : 00000000 7f9368c0 831239c0 00000001
<4>[ 713.850000] $ 4 : 00000000 833a5444 00000000 00020000
<4>[ 713.850000] $ 8 : 00000020 800648f0 00000000 00000001
<4>[ 713.850000] $12 : 00000000 833abf14 00000000 00000000
<4>[ 713.850000] $16 : 833a5400 00001000 7fffffff 00000000
<4>[ 713.850000] $20 : 82cb1ca0 833a5444 833a5444 82cb1ca4
<4>[ 713.850000] $24 : 00000000 77ce7690
<4>[ 713.850000] $28 : 82cb0000 82cb1c38 7fffffff 802405dc
<4>[ 713.850000] Hi : 00000000
<4>[ 713.850000] Lo : 000116b3
<4>[ 713.850000] epc : 800a9a54 __skb_recv_datagram+0x154/0x2f8
<4>[ 713.850000] Not tainted
<4>[ 713.850000] ra : 802405dc skb_recv_datagram+0x28/0x34
<4>[ 713.850000] Status: 1100fc02 KERNEL EXL
<4>[ 713.850000] Cause : 0080000c
<4>[ 713.850000] BadVA : 00000004
<4>[ 713.850000] PrId : 00019750 (MIPS 74Kc)
<4>[ 713.850000] Modules linked in: ath9k ath9k_common pppoe ppp_async
iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv4
mac80211 ipt_MASQUERADE ebtable_nat ebtable_filter ebtable_broute cfg80211
xt_time xt_tcpudp xt_state xt_quota xt_pkttype xt_physdev xt_owner xt_nat
xt_multiport xt_mark xt_mac xt_limit xt_id xt_conntrack xt_comment
xt_addrtype xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc nf_nat_irc nf_nat_ftp
nf_nat nf_defrag_ipv4 nf_conntrack_irc nf_conntrack_ftp iptable_raw
iptable_mangle iptable_filter ipt_REJECT ip_tables ebtables ebt_vlan
ebt_stp ebt_redirect ebt_pkttype ebt_mark_m ebt_mark ebt_limit ebt_among
ebt_802_3 crc_ccitt compat ip6t_REJECT ip6table_raw ip6table_mangle
ip6table_filter ip6_tables x_tables nf_conntrack_ipv6 nf_conntrack
nf_defrag_ipv6 ipv6 arc4 crypto_blkcipher usb_storage ehci_platform
ehci_hcd sd_mod scsi_mod gpio_button_hotplug usbcore nls_base usb_common
<4>[ 713.850000] Process fw3 (pid: 1571, threadinfo=82cb0000,
task=839154f0, tls=77e02880)
<4>[ 713.850000] Stack : 00000c98 00000000 83ae8280 833a5400 831239c0
800a0d90 00000000 00000000
<4>[ 713.850000] 00000000 00000000 833a5400 00001000 82cb1ef8
00000000 82cb1d90 00000000
<4>[ 713.850000] 834fbc60 00001000 7f936878 802405dc 8021c054
00000000 00000000 00000000
<4>[ 713.850000] 82cb1ce8 80344e78 00000000 00000000 fffffffc
801c662c 00000001 801c6468
<4>[ 713.850000] 80344e78 802a5000 831239c0 802405fc 82cb1cc8
82cb1cc8 83846400 831239c0
<4>[ 713.850000] ...
<4>[ 713.850000] Call Trace:
<4>[ 713.850000] [<800a9a54>] __skb_recv_datagram+0x154/0x2f8
<4>[ 713.850000] [<802405dc>] skb_recv_datagram+0x28/0x34
<4>[ 713.850000] [<801c662c>] netlink_recvmsg+0x5c/0x330
<4>[ 713.850000] [<802448dc>] sock_recvmsg+0x88/0xb4
<4>[ 713.850000] [<800812d0>] ___sys_recvmsg.part.31+0xe8/0x188
<4>[ 713.850000] [<800ab898>] __sys_recvmsg+0x58/0x8c
<4>[ 713.850000] [<800625b0>] stack_done+0x20/0x44
<4>[ 713.850000]
<4>[ 713.850000]
<4>[ 713.850000] Code: 8c450004 ac400000 ac400004 <acc50004> aca60000
10600002 41606000 41606020 000000c0
<4>[ 714.130000] ---[ end trace 15498a27fe934ce1 ]---
===================================
Time: 1428500946.244478
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/19438>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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