#20727: CPU 0 Unable to handle kernel paging request at virtual address
----------------------+---------------------------------------
Reporter: webtron | Owner: developers
Type: defect | Status: new
Priority: high | Milestone: Designated Driver (Trunk)
Component: kernel | Version: Trunk
Resolution: | Keywords:
----------------------+---------------------------------------
Comment (by webtron):
I had another one today too on a Unifi but this one was related to
/sbin/netifd and when I ran the "ps" command netifd was running twice. I
also noted the routing table was empty and commands like ifconfig just
hung. I tried killing netifd which failed silently and I tried
/etc/init.d/network restart which seemed to reload without errors but
still 2 netifd running in ps and still no routing table until I rebooted.
{{{
Sun Nov 1 04:09:36 2015 kern.alert kernel: [1346029.295502] CPU 0 Unable
to handle kernel paging request at virtual address 00000004, epc ==
802b1b18, ra == 802b2bec
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.306451] Oops[#29]:
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.309016] CPU: 0 PID:
730 Comm: netifd Tainted: G D 4.1.2 #2
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.316177] task: 8398ca10
ti: 8330c000 task.ti: 8330c000
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.321769] $ 0 :
00000000 00be4094 00000000 00000015
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.327221] $ 4 :
83b340a0 833b5b94 00000020 00000001
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.332674] $ 8 :
00000015 00000000 00000000 00080004
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.338127] $12 :
02202000 00000000 00000000 0004ff00
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.343581] $16 :
833ae620 8330dc30 00000000 833aea54
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.349034] $20 :
833b5b94 83b34080 0a1e0101 00000000
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.354488] $24 :
00000000 8009f15c
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.359941] $28 :
8330c000 8330db70 00000000 802b2bec
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.365395] Hi :
004e0079
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.368466] Lo :
2ac20978
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.371569] epc :
802b1b18 resize+0x38/0x630
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.376222] ra :
802b2bec fib_table_delete+0x254/0x2dc
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.381815] Status:
1000d403 KERNEL EXL IE
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.386217] Cause :
00800008
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.389287] BadVA :
00000004
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.392360] PrId :
00019374 (MIPS 24Kc)
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.396469] Modules linked
in: ath9k ath9k_common iptable_nat ebtable_nat ebtable_filter
ebtable_broute ath9k_hw ath nf_nat_ipv4 nf_conntrack_ipv4 mac80211
iptable_mangle iptable_filter ipt_REJECT ipt_MASQUERADE ip_tables ebtables
ebt_vlan ebt_stp ebt_redirect ebt_pkttype ebt_mark_m ebt_mark ebt_limit
ebt_among ebt_802_3 cfg80211 xt_time xt_tcpudp xt_nat xt_multiport xt_mark
xt_mac xt_limit xt_id xt_comment xt_TCPMSS xt_REDIRECT xt_LOG x_tables
nf_reject_ipv4Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.457641]
Process netifd (pid: 730, threadinfo=8330c000, task=8398ca10,
tls=77faf644)
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.465840] Stack :
00000000 833d8cc0 00000000 00000000 000000d0 00000000 00000010 00000004
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.465840] 00000000
80268b04 00000000 00000010 833ae620 8330dc30 00000000 833aea54
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.465840] 833b5b94
83b34080 0a1e0101 00000000 00000000 802b2bec 83b340a0 801b8bd0
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.465840] 838ee870
8009ef90 00000000 000000d0 00000000 8289361c 82893600 83b340a0
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.465840] 00000001
833b5a14 82893600 838fe06c 803ec1f0 8315c300 00000001 00000000
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.465840] ...
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.501927] Call Trace:
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.504575] [<802b1b18>]
resize+0x38/0x630
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.508878] [<802b2bec>]
fib_table_delete+0x254/0x2dc
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.514137] [<802ad888>]
inet_rtm_delroute+0x34/0x4c
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.519300] [<80255ef8>]
rtnetlink_rcv_msg+0x1cc/0x1fc
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.524652] [<802690fc>]
netlink_rcv_skb+0x78/0xf0
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.529659] [<80253ad4>]
rtnetlink_rcv+0x24/0x34
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.534479] [<802689b0>]
netlink_unicast+0x150/0x234
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.539645] [<80268ef8>]
netlink_sendmsg+0x394/0x3d0
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.544810] [<8022b03c>]
sock_sendmsg+0x18/0x30
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.549542] [<8022c574>]
___sys_sendmsg+0x174/0x210
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.554622] [<8022d4c4>]
__sys_sendmsg+0x48/0x7c
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.559447] [<80062b3c>]
handle_sys+0x11c/0x140
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.564171]
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.565843]
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.565843] Code: 8ca2fffc
afa40058 24060020 <90440004> 00a08021 8ca30000 10860004 8c450000
00a31826
Sun Nov 1 04:09:36 2015 kern.warn kernel: [1346029.577287] ---[ end trace
0afb02db1421b5e1 ]---
Sun Nov 1 04:09:40 2015 kern.alert kernel: [1346033.906060] CPU 0 Unable
to handle kernel paging request at virtual address 00000004, epc ==
802b1078, ra == 802b1134
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.917023] Oops[#30]:
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.919588] CPU: 0 PID:
31007 Comm: route Tainted: G D 4.1.2 #2
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.926835] task: 8398ca10
ti: 828a6000 task.ti: 828a6000
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.932427] $ 0 :
00000000 00000001 00000000 833b5b94
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.937880] $ 4 :
83b03084 00000020 00000000 00000000
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.943333] $ 8 :
0a415000 00000023 00000001 20202020
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.948786] $12 :
20202020 77677320 00000000 20202020
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.954240] $16 :
83b03080 00000180 00000080 82b0b000
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.959693] $20 :
83b03db0 833ae134 828a7f08 775c9688
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.965146] $24 :
00000000 77631830
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.970600] $28 :
828a6000 828a7da8 00000380 802b1134
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.976054] Hi :
00000003
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.979124] Lo :
199999a6
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.982230] epc :
802b1078 leaf_walk_rcu+0x9c/0x10c
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.987489] ra :
802b1134 fib_route_seq_next+0x4c/0xa4
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.993074] Status:
1000d403 KERNEL EXL IE
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346033.997476] Cause :
00800008
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.000545] BadVA :
00000004
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.003609] PrId :
00019374 (MIPS 24Kc)
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.007719] Modules linked
in: ath9k ath9k_common iptable_nat ebtable_nat ebtable_filter
ebtable_broute ath9k_hw ath nf_nat_ipv4 nf_conntrack_ipv4 mac80211
iptable_mangle iptable_filter ipt_REJECT ipt_MASQUERADE ip_tables ebtables
ebt_vlan ebt_stp ebt_redirect ebt_pkttype ebt_mark_m ebt_mark ebt_limit
ebt_among ebt_802_3 cfg80211 xt_time xt_tcpudp xt_nat xt_multiport xt_mark
xt_mac xt_limit xt_id xt_comment xt_TCPMSS xt_REDIRECT xt_LOG x_tables
nf_reject_ipv4Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.068891]
Process route (pid: 31007, threadinfo=828a6000, task=8398ca10,
tls=77677644)
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.077177] Stack :
00000080 82b0b000 83b03db0 833ae134 83b03d80 8011f1e0 00000000 0043aed3
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.077177] 833ea780
800a1464 00000000 00000003 00000000 00000004 838b5580 fffffffb
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.077177] 00000000
828a7f08 828a7e44 00000400 801411e4 00000000 00000000 80141250
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.077177] 835337e0
828a7e78 833ea788 82b0b000 82b0b000 00000000 82b0b000 801002c4
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.077177] 803706e0
00000001 833ea788 00000001 828a7e40 828a7e44 00000000 00000000
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.077177] ...
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.113264] Call Trace:
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.115905] [<802b1078>]
leaf_walk_rcu+0x9c/0x10c
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.120816] [<802b1134>]
fib_route_seq_next+0x4c/0xa4
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.126080] [<8011f1e0>]
seq_read+0x2cc/0x490
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.130641] [<80141250>]
proc_reg_read+0x6c/0x90
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.135473] [<801002c4>]
do_readv_writev+0x18c/0x288
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.140643] [<80100400>]
vfs_readv+0x40/0x5c
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.145114] [<80100cc4>]
SyS_readv+0x58/0xc4
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.149588] [<80062b3c>]
handle_sys+0x11c/0x140
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.154313]
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.155984]
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.155984] Code: 24c20002
8c62fffc 8c660000 <90430004> 1065000b 8c470000 00e63026 00663006
24c60001
Sun Nov 1 04:09:40 2015 kern.warn kernel: [1346034.167724] ---[ end trace
0afb02db1421b5e2 ]---
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/20727#comment:4>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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