#19234: kernel oops: __rcu_process_callbacks+0xac/0xd8
--------------------------+------------------------
Reporter: christian@… | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: kernel | Version: Trunk
Resolution: | Keywords:
--------------------------+------------------------
Comment (by christian@…):
got another one on the same hardware:
{{{
[ 422.220000] Unhandled kernel unaligned access[#1]:
[ 422.220000] CPU: 0 PID: 1393 Comm: logread Not tainted 3.18.9 #3
[ 422.220000] task: 85c51838 ti: 85c5e000 task.ti: 85c5e000
[ 422.220000] $ 0 : 00000000 00000001 00000100 000f0000
[ 422.220000] $ 4 : 0086b8f5 00000100 00150040 00000015
[ 422.220000] $ 8 : 00160040 869ac280 00000020 00160040
[ 422.220000] $12 : ffffff80 85e2755a 000000a2 00000002
[ 422.220000] $16 : 0086b8f5 800a9c38 0000000a 00000003
[ 422.220000] $20 : 00000100 803e0000 803ec774 00000009
[ 422.220000] $24 : 00000001 868412c0
[ 422.220000] $28 : 85c5e000 85c5fe90 00000024 800a9c44
[ 422.220000] Hi : 00000000
[ 422.220000] Lo : 042ef281
[ 422.220000] epc : 800a9c00 __rcu_process_callbacks+0x74/0xd8
[ 422.220000] Not tainted
[ 422.220000] ra : 800a9c44 __rcu_process_callbacks+0xb8/0xd8
[ 422.220000] Status: 1100dc03 KERNEL EXL IE
[ 422.220000] Cause : 00800010
[ 422.220000] BadVA : 0086b8f5
[ 422.220000] PrId : 0001974c (MIPS 74Kc)
[ 422.220000] 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_policy
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
ts_kmp ts_fsm ts_bm 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 macvlan 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 em_nbyte sch_dsmark em_meta sch_gred sch_htb sch_teql
act_ipt sch_red sch_codel act_police em_text sch_tbf sch_sfq cls_basic
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_rt ip6t_frag ip6t_hbh ip6t_eui64 ip6t_mh ip6t_ah
ip6t_ipv6header ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common
ip6table_raw ip6table_mangle ip6table_filter ip6_tables x_tables ipcomp6
xfrm6_tunnel xfrm6_mode_tunnel xfrm6_mode_transport xfrm6_mode_beet esp6
ah6 ipcomp xfrm4_tunnel xfrm4_mode_tunnel xfrm4_mode_transport
xfrm4_mode_beet esp4 ah4 ipip ip6_tunnel tunnel6 tunnel4 ip_tunnel af_key
xfrm_user xfrm_ipcomp xfrm_algo 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
[ 422.220000] Process logread (pid: 1393, threadinfo=85c5e000,
task=85c51838, tls=776e8440)
[ 422.220000] Stack : 00000000 00000000 8036b338 8036b338 00000000
00000004 803ec798 80230a80
8037984c 8008f9d4 86a62a00 00000240 803ec78c 80091330 00000002
80144aa8
86a62a08 00000002 00000002 800cd648 00400000 00002fbf 00000000
0000000b
00000057 00000000 fffffff6 7f87b0d8 00000020 7fd0ef38 7f87af58
8019ccd4
7f87b1d0 00000000 7f87b100 7f87b100 00000000 80060830 00000012
00000000
...
[ 422.220000] Call Trace:
[ 422.220000] [<800a9c00>] __rcu_process_callbacks+0x74/0xd8
[ 422.220000] [<80230a80>] rcu_process_callbacks+0x14/0x28
[ 422.220000] [<80091330>] __do_softirq+0xf8/0x230
[ 422.220000] [<8019ccd4>] irq_exit+0x54/0x70
[ 422.220000] [<80060830>] ret_from_irq+0x0/0x4
[ 422.220000]
[ 422.220000]
Code: 26319c38 10800014 8f820014 <8c900000> 24420200 ce000000 af820014
8c820004 2c431000
[ 422.580000] ---[ end trace 069c121ae13a5594 ]---
[ 422.580000] Kernel panic - not syncing: Fatal exception in interrupt
[ 422.580000] Rebooting in 3 seconds..
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/19234#comment:1>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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