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Opened 2 years ago

Closed 2 years ago

#20329 closed defect (fixed)

CPU 0 Unable to handle kernel paging request

Reported by: anonymous Owned by: developers
Priority: normal Milestone:
Component: kernel Version: Trunk
Keywords: Cc:

Description

ar71xx, 941ND v3, r46583

Thu Aug 13 01:21:45 2015 daemon.notice netifd: Interface 'wan' is enabled
Thu Aug 13 01:21:45 2015 daemon.notice netifd: Interface 'wan' is setting up now
Thu Aug 13 01:21:46 2015 daemon.info pppd[2094]: Plugin rp-pppoe.so loaded.
Thu Aug 13 01:21:46 2015 daemon.info pppd[2094]: RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
Thu Aug 13 01:21:46 2015 daemon.notice pppd[2094]: pppd 2.4.7 started by root, uid 0
Thu Aug 13 01:21:46 2015 daemon.info pppd[2094]: PPP session is 15937
Thu Aug 13 01:21:46 2015 daemon.warn pppd[2094]: Connected to 90:17:ac:ad:ed:08 via interface wan
Thu Aug 13 01:21:46 2015 daemon.info pppd[2094]: Using interface pppoe-wan
Thu Aug 13 01:21:46 2015 daemon.notice pppd[2094]: Connect: pppoe-wan <--> wan
Thu Aug 13 01:21:46 2015 kern.info kernel: [ 88.910000] pppoe-wan: renamed from ppp0
Thu Aug 13 01:21:46 2015 daemon.info pppd[2094]: CHAP authentication failed: Exceeded sessions limit.
Thu Aug 13 01:21:46 2015 daemon.err pppd[2094]: CHAP authentication failed
Thu Aug 13 01:21:46 2015 daemon.notice pppd[2094]: Modem hangup
Thu Aug 13 01:21:46 2015 daemon.notice pppd[2094]: Connection terminated.
Thu Aug 13 01:21:46 2015 daemon.info pppd[2094]: Sent PADT
Thu Aug 13 01:21:46 2015 daemon.info pppd[2094]: Exit.
Thu Aug 13 01:21:46 2015 daemon.notice netifd: Interface 'wan' is now down
Thu Aug 13 01:21:46 2015 daemon.notice netifd: Interface 'wan' is disabled
Thu Aug 13 01:21:46 2015 daemon.notice netifd: Interface 'wan' is enabled
Thu Aug 13 01:21:46 2015 daemon.notice netifd: Interface 'wan' is setting up now
Thu Aug 13 01:21:46 2015 daemon.info pppd[2144]: Plugin rp-pppoe.so loaded.
Thu Aug 13 01:21:46 2015 daemon.info pppd[2144]: RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
Thu Aug 13 01:21:46 2015 daemon.notice pppd[2144]: pppd 2.4.7 started by root, uid 0
Thu Aug 13 01:21:46 2015 daemon.info pppd[2144]: PPP session is 18636
Thu Aug 13 01:21:46 2015 daemon.warn pppd[2144]: Connected to 90:17:ac:ad:ed:08 via interface wan
Thu Aug 13 01:21:46 2015 kern.info kernel: [ 89.410000] pppoe-wan: renamed from ppp0
Thu Aug 13 01:21:46 2015 daemon.info pppd[2144]: Using interface pppoe-wan
Thu Aug 13 01:21:46 2015 daemon.notice pppd[2144]: Connect: pppoe-wan <--> wan
Thu Aug 13 01:21:47 2015 daemon.info pppd[2144]: Terminating on signal 15
Thu Aug 13 01:21:52 2015 daemon.notice netifd: Interface 'wan' is now down
Thu Aug 13 01:21:52 2015 daemon.notice netifd: Interface 'wan' is disabled
Thu Aug 13 01:21:52 2015 daemon.notice netifd: Network device 'wan' link is down
Thu Aug 13 01:21:52 2015 daemon.notice netifd: Interface 'wan' has link connectivity loss
Thu Aug 13 01:21:52 2015 kern.alert kernel: [ 94.930000] CPU 0 Unable to handle kernel paging request at virtual address 00000264, epc == 80d5791c, ra == 80d578dc
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] Oops#1:
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] CPU: 0 PID: 2144 Comm: pppd Not tainted 3.18.19 #2
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] task: 80f244d8 ti: 80eca000 task.ti: 80eca000
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] $ 0 : 00000000 00000001 00000001 00000000
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] $ 4 : 801fee04 00000000 80e84c88 00000001
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] $ 8 : 0018003c 81514990 0000001e 0018003c
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] $12 : 00000016 77c63390 00000000 77d013d0
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] $16 : 80f1e000 00000000 814f9840 81514bb0
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] $20 : 818133d0 80e84c88 80320000 80310000
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] $24 : 00000000 801fb830
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] $28 : 80eca000 80ecbd00 802d3d88 80d578dc
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] Hi : 00000001
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] Lo : 00000001
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] epc : 80d5791c 0x80d5791c
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] Not tainted
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] ra : 80d578dc 0x80d578dc
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] Status: 1000d402 KERNEL EXL
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] Cause : 00800008
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] BadVA : 00000264
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] PrId : 00019374 (MIPS 24Kc)
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] Modules linked in: ath9k ath9k_common pppoe ppp_async iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv4 mac80211 iptable_raw iptable_mangle iptable_filter ipt_REJECT ipt_MASQUERADE ip_tables 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 x_tables slhc nf_reject_ipv4 nf_nat_masquerade_ipv4 nf_nat_ftp nf_nat nf_log_ipv4 nf_log_commoThu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] Process pppd (pid: 2144, threadinfo=80eca000, task=80f244d8, tls=778c6440)
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] Stack : 81514440 81514440 81514440 0017003c 814f9840 80d57e14 00000008 801fba64
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] 80f2a300 001e0040 80e64d00 81514440 80e84c80 80e84c80 814f9860 801fbb14
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] 80e84c80 814f9860 00000008 81514bb0 818133d0 800f5db0 81025940 81039e00
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] 80e84c88 00000001 00000000 00000000 00000000 80f244d8 80e84820 80360000
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] 80f2a334 80ef2660 00000001 80093bbc 81b2af80 8011ab04 80f244d8 80f2a300
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] ...
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] Call Trace:
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] [<80d5791c>] 0x80d5791c
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000]
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000]
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 94.930000] Code: 41626000 30420001 000000c0 <8c630264> 8c640000 2484ffff ac640000 10400002 41606000
Thu Aug 13 01:21:52 2015 kern.warn kernel: [ 95.140000] ---[ end trace 60e21236c53998bb ]---
Thu Aug 13 01:21:52 2015 kern.alert kernel: [ 95.150000] Fixing recursive fault but reboot is needed!
Thu Aug 13 01:21:52 2015 kern.info kernel: [ 95.160000] dsa dsa.0 wan: link down
Thu Aug 13 01:21:52 2015 kern.info kernel: [ 95.280000] dsa dsa.0 wan: Link is Down

Attachments (0)

Change History (5)

comment:1 Changed 2 years ago by anonymous

I've also had this issue with a TPlink Archer C7, running a build from yesterday

comment:2 Changed 2 years ago by anonymous

Happened today to me with TP-Link 841nd v5 and openwrt 15.05 (official release).

I stopped wan from interfaces (pppoe connection) and I got exactly the same message. From this moment it failed to connect using pppoe, had to unplug and replug the router to make it connect again to pppoe (reboot from openwrt interface didn't really fixed it, it rebooted the router but it was still failling to connect (unable to rename ppp1 to pppoe-wan)).

comment:3 Changed 2 years ago by yousong

For the record, I also encountered this with malta on BB branch. No custom kernel patch was applied apart from those of BB branch itself.

[ 3249.360000] CPU 0 Unable to handle kernel paging request at virtual address 00000244, epc == 810438d0, ra == 81043878
[ 3249.360000] Oops[#1]:
[ 3249.360000] CPU: 0 PID: 4722 Comm: pppd Not tainted 3.10.49 #6
[ 3249.360000] task: 85d5f1b8 ti: 812c6000 task.ti: 812c6000
[ 3249.360000] $ 0   : 00000000 00000001 00000000 00000001
[ 3249.360000] $ 4   : 0012a000 00000000 8115d0c8 00000001
[ 3249.360000] $ 8   : 818f9100 00000000 00000004 fffffffc
[ 3249.360000] $12   : 00000000 81061eb9 00000000 00000000
[ 3249.360000] $16   : 81228c00 00000000 876f0ee8 876de9c0
[ 3249.360000] $20   : 8115d0c8 876de9e0 87811810 00000001
[ 3249.360000] $24   : 00000000 803155c4
[ 3249.360000] $28   : 812c6000 812c7cf0 80410000 81043878
[ 3249.360000] Hi    : 00000000
[ 3249.360000] Lo    : 00000000
[ 3249.360000] epc   : 810438d0 0x810438d0
[ 3249.360000]     Not tainted
[ 3249.360000] ra    : 81043878 0x81043878
[ 3249.360000] Status: 1000b702 KERNEL EXL
[ 3249.360000] Cause : 00800008
[ 3249.360000] BadVA : 00000244
[ 3249.360000] PrId  : 00019300 (MIPS 24Kc)
[ 3249.360000] Modules linked in: pppoe ppp_async l2tp_ppp iptable_nat pptp pppox ppp_mppe ppp_generic nf_nat_ipv4 nf_con
ntrack_ipv4 mac80211_hwsim mac80211 ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_recent xt_nat xt_multiport xt_m
ark xt_mac xt_limit xt_id xt_helper xt_conntrack xt_connmark xt_connlimit xt_connbytes xt_comment xt_TCPMSS xt_REDIRECT x
t_LOG xt_CT slhc pcnet32 nf_nat_irc nf_nat_ftp nf_nat nf_defrag_ipv4 nf_conntrack_irc nf_conntrack_ftp macvlan iptable_ra
w iptable_mangle iptable_filter ipt_REJECT ip_tables crc_ccitt compat xt_set ip_set_list_set ip_set_hash_netport ip_set_h
ash_netiface ip_set_hash_net ip_set_hash_ipportnet ip_set_hash_ipportip ip_set_hash_ipport ip_set_hash_ip ip_set_bitmap_p
ort ip_set_bitmap_ipmac ip_set_bitmap_ip ip_set nfnetlink ip6t_REJECT ip6table_raw ip6table_mangle ip6table_filter ip6_ta
bles x_tables nf_conntrack_ipv6 nf_conntrack nf_defrag_ipv6 ip_gre gre l2tp_netlink l2tp_core ip_tunnel tun ipv6 sha1_gen
eric ecb arc4 crypto_blkcipher crypto_hash
[ 3249.360000] Process pppd (pid: 4722, threadinfo=812c6000, task=85d5f1b8, tls=771a8440)
[ 3249.360000] Stack : 876dece0 803155e4 876decc0 876dfc40 876de9c0 81043dc4 876f0ee8 876de9e0
[ 3249.360000]    8115d0c8 876de9e0 87811810 803172c8 00000002 802c4c48 876dfc40 00000000
[ 3249.360000]    8115d0c0 8115d0c0 00000008 80315274 8115d0c8 876de9e0 8115d0c0 00000008
[ 3249.360000]    876f0ee8 80131af4 87198c00 00000000 811d62c0 801f1bac 00000000 00000000
[ 3249.360000]    85d5f1b8 8115dd80 817f0000 812dfd00 80400000 8104dc44 812c7ef0 80329df4
[ 3249.360000]    ...
[ 3249.360000] Call Trace:
[ 3249.360000] [<810438d0>] 0x810438d0
[ 3249.360000]
[ 3249.360000]
[ 3249.360000] Code: 00052880  00a42021  8c840000 <8c420244> 00441021  8c440000  2484ffff  ac440000  10600002
[ 3249.370000] ---[ end trace 7a3421d6d096bc59 ]---
[ 3249.370000] Fixing recursive fault but reboot is needed!

comment:4 Changed 2 years ago by salatiel.filho@…

Same problem here
Wed Dec 9 10:16:33 2015 daemon.notice netifd: Network device 'eth1' link is down
Wed Dec 9 10:16:33 2015 daemon.notice netifd: Interface 'wan' has link connectivity loss
Wed Dec 9 10:16:33 2015 kern.info kernel: [1268984.930000] eth1: link down
Wed Dec 9 10:16:33 2015 kern.alert kernel: [1268984.940000] CPU 0 Unable to handle kernel paging request at virtual address 00000264, epc == 86a0b930, ra == 86a0b8f0
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] Oops#1:
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] CPU: 0 PID: 10232 Comm: pppd Not tainted 3.18.21 #7
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] task: 86289d10 ti: 862f2000 task.ti: 862f2000
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] $ 0 : 00000000 00000001 00000001 00000000
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] $ 4 : 8022437c 00000000 86b7ed28 00000001
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] $ 8 : 0019003c 8776e990 0000001e 0019003c
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] $12 : 00000000 000001fc 00000000 00000000
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] $16 : 85a79400 00000000 8777d2c0 8776ebb0
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] $20 : 878133d0 86b7ed28 80370000 80360000
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] $24 : 00000000 80220bd8
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] $28 : 862f2000 862f3d00 8030d73c 86a0b8f0
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] Hi : 00000001
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] Lo : 00000001
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] epc : 86a0b930 0x86a0b930
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] Not tainted
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] ra : 86a0b8f0 0x86a0b8f0
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] Status: 1000fc02 KERNEL EXL
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] Cause : 00800008
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] BadVA : 00000264
Wed Dec 9 10:16:33 2015 kern.warn kernel: [1268984.940000] PrId : 00019374 (MIPS 24Kc)
...
Right after the DSL modem connected to WAN port has been rebooted.

CHAOS CALMER (Chaos Calmer, r47004)

comment:5 Changed 2 years ago by nbd

  • Resolution set to fixed
  • Status changed from new to closed

fixed in r47963, r47964

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