#19337: current trunk - tplink 1043: ieee80211_tx_prepare_skb when connecting to
wifi
-----------------------+------------------------
Reporter: anonymous | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: kernel | Version: Trunk
Keywords: |
-----------------------+------------------------
# cat /var/sysinfo/model
TP-Link TL-WR1043N/ND v1
# uname -a
Linux OpenWrt 3.18.9 #1 Sat Mar 28 04:37:21 UTC 2015 mips GNU/Linux
version: r45064
Steps to reproduce:
1. Install r45064 on TL-WR1043N
2. set wan to pppoe
3. receive IPv6 subnet from provider
4. connect to wifi
{{{
[ 36.890000] CPU 0 Unable to handle kernel paging request at virtual
address 00000000, epc == 00000000, ra == 80e243d8
[ 36.900000] Oops[#1]:
[ 36.900000] CPU: 0 PID: 774 Comm: odhcpd Not tainted 3.18.9 #1
[ 36.900000] task: 819cf070 ti: 80fa2000 task.ti: 80fa2000
[ 36.900000] $ 0 : 00000000 00000000 00000000 00000023
[ 36.900000] $ 4 : 80ed4b00 80f51240 80ed5338 80ed5338
[ 36.900000] $ 8 : 8164d238 0000000c 00000000 025c1618
[ 36.900000] $12 : 00000000 bd784ba7 00000000 00000000
[ 36.900000] $16 : 80fa3924 80d9b600 80ed4b00 80f50b60
[ 36.900000] $20 : 80f51240 00000000 80fa3924 00000000
[ 36.900000] $24 : 00000000 80c85a7c
[ 36.900000] $28 : 80fa2000 80fa38b8 000000f8 80e243d8
[ 36.900000] Hi : 20e63337
[ 36.900000] Lo : 6500f1fb
[ 36.900000] epc : 00000000 (null)
[ 36.900000] Not tainted
[ 36.900000] ra : 80e243d8 ieee80211_tx_prepare_skb+0x69c/0x1270
[mac80211]
[ 36.900000] Status: 1000dc03 KERNEL EXL IE
[ 36.900000] Cause : 10800008
[ 36.900000] BadVA : 00000000
[ 36.900000] PrId : 00019374 (MIPS 24Kc)
[ 36.900000] Modules linked in: ath9k ath9k_common pppoe ppp_async
iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv6
nf_conntrack_ipv4 mac80211 ipt_REJECT ipt_MASQUERADE cfg80211 xt_time
xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id
xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc
nf_reject_ipv4 nf_nat_masquerade_ipv4 nf_nat_irc nf_nat_ftp nf_nat
nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache
nf_conntrack_irc nf_conntrack_ftp nf_conntrack iptable_raw iptable_mangle
iptable_filter ip_tables crc_ccitt compat ledtrig_usbdev ip6t_REJECT
nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_raw ip6table_mangle
ip6table_filter ip6_tables x_tables ipv6 arc4 crypto_blkcipher
ohci_platform ohci_hcd ehci_platform ehci_hcd gpio_button_hotplug usbcore
nls_base usb_common
[ 36.900000] Process odhcpd (pid: 774, threadinfo=80fa2000,
task=819cf070, tls=77a63440)
[ 36.900000] Stack : 01000000 80e23f5c 00000001 ffffffff 8164d238
8164d238 00000000 80dd3b80
00000802 00000001 80d9b600 80ed4b00 000000f8 80f50442 00000000
00000000
80d260e8 80380000 8037f150 80e244f0 000000c3 800a92a4 81bd0800
00000001
00000000 80d9ba80 00000000 80fa3924 80fa3924 00000000 80ed4b00
80f50440
00000000 00000000 00080000 00000000 80f50000 80f50440 80d260e8
80f50000
...
[ 36.900000] Call Trace:
[ 36.900000] [<80e23f5c>] ieee80211_tx_prepare_skb+0x220/0x1270
[mac80211]
[ 36.900000] [<80e244f0>] ieee80211_tx_prepare_skb+0x7b4/0x1270
[mac80211]
[ 36.900000] [<800a92a4>] __nla_put+0x1c/0x3c
[ 36.900000] [<80e26238>] __ieee80211_subif_start_xmit+0x8c/0xa0
[mac80211]
[ 36.900000] [<80e2625c>] ieee80211_subif_start_xmit+0x10/0x20
[mac80211]
[ 36.900000] [<802d5ae4>] validate_xmit_skb.isra.112.part.113+0x28/0x2c0
[ 36.900000] [<80127274>] dev_hard_start_xmit+0x298/0x350
[ 36.900000] [<8025abf0>] sch_direct_xmit+0x84/0x1c4
[ 36.900000] [<801f3498>] netdev_pick_tx+0x48/0xd4
[ 36.900000] [<80093640>] __dev_queue_xmit+0x2a4/0x4b0
[ 36.900000] [<8008dde4>] __br_deliver+0x0/0x9c
[ 36.900000] [<800f2bc0>] br_dev_queue_push_xmit+0x1b8/0x1d0
[ 36.900000] [<80cc4704>] ip6t_do_table+0x534/0x704 [ip6_tables]
[ 36.900000] [<8008dde4>] __br_deliver+0x0/0x9c
[ 36.900000] [<80122894>] deliver_clone+0x50/0x6c
[ 36.900000] [<80c7219c>] nf_conntrack_in+0x1d4/0x6cc [nf_conntrack]
[ 36.900000] [<8008dde4>] __br_deliver+0x0/0x9c
[ 36.900000] [<801da738>] maybe_deliver+0x54/0x70
[ 36.900000] [<800f45b0>] br_flood+0x98/0x174
[ 36.900000] [<80cc4704>] ip6t_do_table+0x534/0x704 [ip6_tables]
[ 36.900000] [<800f46b0>] br_flood_deliver+0x24/0x30
[ 36.900000] [<800f3030>] br_dev_xmit+0x25c/0x280
[ 36.900000] [<80127274>] dev_hard_start_xmit+0x298/0x350
[ 36.900000] [<802d5ae4>] validate_xmit_skb.isra.112.part.113+0x28/0x2c0
[ 36.900000] [<800a3ad4>] __kmalloc_reserve.isra.38+0x40/0xa4
[ 36.900000] [<8009374c>] __dev_queue_xmit+0x3b0/0x4b0
[ 36.900000] [<801f9454>] nf_hook_slow+0x98/0x164
[ 36.900000] [<8014a524>] dst_output+0x0/0x1c
[ 36.900000] [<80c8597c>] ip6_fragment+0xd5c/0xe5c [ipv6]
[ 36.900000] [<80c81f98>] ac6_proc_exit+0x51c/0xa70 [ipv6]
[ 36.900000] [<80c85b94>] ip6_output+0x118/0x134 [ipv6]
[ 36.900000] [<80c83bb0>] ip6_push_pending_frames+0x4ec/0x5c0 [ipv6]
[ 36.900000] [<80ca04d4>] udplite6_proc_exit+0x17d0/0x1874 [ipv6]
[ 36.900000] [<8019b72c>] ip_generic_getfrag+0x0/0xb4
[ 36.900000] [<801d50b0>] lookup_fast+0x274/0x2e4
[ 36.900000] [<8015f1c0>] find_get_entry+0x24/0x9c
[ 36.900000] [<80209cd0>] pagecache_get_page+0x5c/0x244
[ 36.900000] [<80281278>] sock_sendmsg+0x70/0xa0
[ 36.900000] [<801d50b0>] lookup_fast+0x274/0x2e4
[ 36.900000] [<8015fb18>] find_lock_entry+0x30/0xb0
[ 36.900000] [<8013afb8>] do_last.isra.58+0x9dc/0xb5c
[ 36.900000] [<80083578>] ___sys_sendmsg.part.30+0x184/0x220
[ 36.900000] [<801550b8>] extract_buf+0xe0/0xfc
[ 36.900000] [<800b6c6c>] __sys_sendmsg+0x54/0x88
[ 36.900000] [<80062b5c>] handle_sys+0x11c/0x140
[ 36.900000]
[ 36.900000]
Code: (Bad address in epc)
[ 36.900000]
[ 37.350000] ---[ end trace 8b2528775769c994 ]---
[ 37.360000] Kernel panic - not syncing: Fatal exception in interrupt
[ 37.360000] Rebooting in 3 seconds..
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/19337>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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