#19226: kernel oops: ipv6_chk_mcast_addr+0xc/0x1c0 [ipv6]
--------------------------+------------------------
Reporter: christian@… | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: kernel | Version: Trunk
Resolution: | Keywords:
--------------------------+------------------------
Comment (by christian@…):
this is also happening with Archer-C5 on r44902:
{{{
[ 117.480000] CPU 0 Unable to handle kernel paging request at virtual
address 000001dc, epc == 86ce63c8, ra == 86cc6750
[ 117.490000] Oops[#1]:
[ 117.490000] CPU: 0 PID: 1114 Comm: netifd Not tainted 3.18.9 #4
[ 117.490000] task: 87b9f070 ti: 87bea000 task.ti: 87bea000
[ 117.490000] $ 0 : 00000000 00000001 00000000 00001b44
[ 117.490000] $ 4 : 00000000 85b5e618 00000000 000000c3
[ 117.490000] $ 8 : 00000020 00000000 00000000 00000000
[ 117.490000] $12 : 00000000 00040012 00000000 00000000
[ 117.490000] $16 : 86ac9f00 803591a4 86ac9f00 85b5e600
[ 117.490000] $20 : 85b5e618 80365f78 803591b8 80359148
[ 117.490000] $24 : 00000000 86cc6670
[ 117.490000] $28 : 87bea000 87beba30 00000000 86cc6750
[ 117.490000] Hi : 0000000a
[ 117.490000] Lo : 00000000
[ 117.490000] epc : 86ce63c8 ipv6_chk_mcast_addr+0xc/0x1c0 [ipv6]
[ 117.490000] Not tainted
[ 117.490000] ra : 86cc6750 ip6_mc_input+0xe0/0x564 [ipv6]
[ 117.490000] Status: 1100fc03 KERNEL EXL IE
[ 117.490000] Cause : 00800008
[ 117.490000] BadVA : 000001dc
[ 117.490000] PrId : 00019750 (MIPS 74Kc)
[ 117.490000] Modules linked in: iptable_nat ath9k nf_nat_ipv4
nf_conntrack_netlink nf_conntrack_ipv6 nf_conntrack_ipv4 ipt_REJECT
ipt_MASQUERADE ebtable_nat ebtable_filter ebtable_broute ath9k_common
xt_time xt_tcpudp xt_tcpmss xt_statistic xt_state xt_quota xt_pkttype
xt_physdev xt_owner xt_nat xt_multiport xt_mark xt_mac xt_limit xt_length
xt_id xt_hl xt_esp xt_ecn xt_dscp xt_conntrack xt_comment xt_addrtype
xt_TCPMSS xt_REDIRECT xt_LOG xt_HL xt_DSCP xt_CT xt_CLASSIFY rfcomm
nfnetlink nf_reject_ipv4 nf_nat_masquerade_ipv4 nf_nat nf_log_ipv4
nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack
iptable_raw iptable_mangle iptable_filter ipt_ah ipt_ECN ip_tables hidp
hci_uart ebtables ebt_vlan ebt_stp ebt_snat ebt_redirect ebt_pkttype
ebt_mark_m ebt_mark ebt_limit ebt_ip ebt_dnat ebt_arpreply ebt_arp
ebt_among ebt_802_3 crc_ccitt btusb bnep bluetooth ath9k_hw em_cmp
sch_teql em_nbyte sch_codel sch_dsmark em_meta sch_gred sch_htb cls_basic
act_ipt sch_red act_police em_text sch_tbf sch_sfq sch_prio act_skbedit
act_mirred em_u32 cls_u32 cls_tcindex cls_flow cls_route cls_fw sch_hfsc
sch_ingress hid evdev input_core ath10k_pci ath10k_core ath mac80211
cfg80211 compat ledtrig_usbdev batman_adv libcrc32c crc16 ip6t_REJECT
nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_raw ip6table_mangle
ip6table_filter ip6_tables x_tables ipv6 chainiv eseqiv crypto_wq
sha1_generic krng rng md5 hmac des_generic deflate zlib_inflate
zlib_deflate cbc authenc aead arc4 crypto_blkcipher ehci_pci ehci_platform
ehci_hcd gpio_button_hotplug usbcore nls_base usb_common crc32c_generic
crypto_hash
[ 117.490000] Process netifd (pid: 1114, threadinfo=87bea000,
task=87b9f070, tls=7748b750)
[ 117.490000] Stack : 00000000 00000000 00010003 fe800000 86ac9f00
86cc6750 b117348f 00000000
00000000 86cc5af0 86ac9f00 803591a4 86ac9f00 86cfa770 803591a4
86ac9f00
86e88000 00000000 000086dd 800a36a8 87bebb50 86a99800 80360000
80359148
803591b8 800f20fc 8035af2c 86ded8d4 86ac9f00 85405846 86a48000
85405846
87bebb50 86a99800 80360000 80359148 800eb398 800eb650 86ac9f00
87b636c0
...
[ 117.490000] Call Trace:
[ 117.490000] [<86ce63c8>] ipv6_chk_mcast_addr+0xc/0x1c0 [ipv6]
[ 117.490000] [<86cc6750>] ip6_mc_input+0xe0/0x564 [ipv6]
[ 117.490000] [<800a36a8>] __netif_receive_skb_core+0x630/0x6b0
[ 117.490000] [<800eb650>] br_handle_frame+0x2b8/0x3f0
[ 117.490000] [<800a3534>] __netif_receive_skb_core+0x4bc/0x6b0
[ 117.490000] [<800bfd44>] ag71xx_poll+0x3fc/0x5d0
[ 117.490000] [<801ded74>] net_rx_action+0x10c/0x1e0
[ 117.490000] [<80091290>] __do_softirq+0xf8/0x230
[ 117.490000] [<80199680>] irq_exit+0x54/0x70
[ 117.490000] [<80060830>] ret_from_irq+0x0/0x4
[ 117.490000] [<801e1f80>] netlink_broadcast_filtered+0xe0/0x384
[ 117.490000] [<801e1e94>] netlink_broadcast+0x20/0x2c
[ 117.490000] [<801e7974>] nlmsg_notify+0x70/0xd0
[ 117.490000] [<8023f598>] rtmsg_ifinfo+0xd4/0x12c
[ 117.490000] [<8008e840>] __dev_notify_flags+0x30/0xa0
[ 117.490000] [<8011a658>] dev_change_flags+0x50/0x70
[ 117.490000] [<8011d668>] dev_ifsioc+0xfc/0x330
[ 117.490000] [<8011df8c>] dev_ioctl+0x5d8/0x6c8
[ 117.490000] [<80139f94>] do_vfs_ioctl+0x4d0/0x5dc
[ 117.490000] [<8007468c>] SyS_ioctl+0x50/0x94
[ 117.490000] [<80062b5c>] handle_sys+0x11c/0x140
[ 117.490000]
[ 117.490000]
Code: 27bdffe8 afbf0014 afb00010 <8c8201dc> 10400032 8f830014 24630200
af830014 8c43000c
[ 117.890000] ---[ end trace 28f00e7f6859cf95 ]---
[ 117.900000] Kernel panic - not syncing: Fatal exception in interrupt
[ 117.900000] Rebooting in 3 seconds..
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/19226#comment:1>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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