#20329: CPU 0 Unable to handle kernel paging request
------------------------+------------------------
Reporter: anonymous | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: kernel | Version: Trunk
Resolution: | Keywords:
------------------------+------------------------
Comment (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!
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/20329#comment:3>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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