#19233: kernel oops: kmem_cache_alloc+0x4c/0xec
-------------------------+------------------------
Reporter: christian@… | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: kernel | Version: Trunk
Keywords: |
-------------------------+------------------------
{{{
$ cat /tmp/sysinfo/model
TP-Link Archer C5 v1
$ uname -a
Linux foobar 3.18.9 #3 Fri Mar 20 17:03:33 CET 2015 mips GNU/Linux
}}}
{{{
CHAOS CALMER (Bleeding Edge, r44902)
}}}
{{{
[ 980.930000] Unhandled kernel unaligned access[#1]:
[ 980.930000] CPU: 0 PID: 8335 Comm: hotplug-call Not tainted 3.18.9 #3
[ 980.930000] task: 85a1d838 ti: 858b4000 task.ti: 858b4000
[ 980.930000] $ 0 : 00000000 00000000 00849b25 00000038
[ 980.930000] $ 4 : 87802f00 000000d0 81102020 0003d593
[ 980.930000] $ 8 : 858b5fe0 0000fc00 00000000 00000000
[ 980.930000] $12 : 000000e5 7f9afe58 00000000 00000000
[ 980.930000] $16 : 00849b25 87802f00 000000d0 858b5d58
[ 980.930000] $20 : 858b5e08 858b5d70 80370000 00000202
[ 980.930000] $24 : 00000000 8011b640
[ 980.930000] $28 : 858b4000 858b5ca0 fffff8ff 801f2a50
[ 980.930000] Hi : 000000e4
[ 980.930000] Lo : 63fbf480
[ 980.930000] epc : 801b6e80 kmem_cache_alloc+0x4c/0xec
[ 980.930000] Not tainted
[ 980.930000] ra : 801f2a50 ovl_follow_link+0x88/0xd0
[ 980.930000] Status: 1100fc03 KERNEL EXL IE
[ 980.930000] Cause : 00800010
[ 980.930000] BadVA : 00849b25
[ 980.930000] PrId : 00019750 (MIPS 74Kc)
[ 980.930000] 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
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
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
sch_teql em_nbyte sch_codel sch_dsmark em_meta sch_gred sch_htb cls_basic
act_ipt sch_red act_police em_text sch_tbf sch_sfq 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 ledtrig_gpio batman_adv libcrc32c crc16
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 tunnel6 tunnel4 tun 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
ledtrig_transient ehci_pci ehci_platform ehci_hcd gpio_button_hotplug
usbcore nls_base usb_common crc32c_generic crypto_hash
[ 980.930000] Process hotplug-call (pid: 8335, threadinfo=858b4000,
task=85a1d838, tls=77ff5440)
[ 980.930000] Stack : 858b5e08 858b5d70 80370000 00000202 810fe600
87405aa0 8740c9d8 801f2a50
858b5d58 00000000 858b5d58 800669bc 858b5e08 858b5d58 87464088
854a4000
8031edf4 801fdcec 00000001 81102184 00000141 81102188 858b5d10
00000000
87b0d250 87464088 87b0d250 87464088 00000000 00000000 8031edf4
00000001
858b5e08 ffffff9c 80370000 80375360 84e81300 849b2700 858b5e20
8012de90
...
[ 980.930000] Call Trace:
[ 980.930000] [<801b6e80>] kmem_cache_alloc+0x4c/0xec
[ 980.930000] [<801f2a50>] ovl_follow_link+0x88/0xd0
[ 980.930000] [<801fdcec>] path_openat+0x2d8/0x580
[ 980.930000] [<8012de90>] do_filp_open+0x3c/0xa4
[ 980.930000] [<80134108>] do_open_exec+0x28/0xfc
[ 980.930000] [<801ef5cc>] open_exec+0x20/0x2c
[ 980.930000] [<801c01fc>] load_elf_binary+0x200/0x1240
[ 980.930000] [<80249e70>] search_binary_handler+0x88/0x1c8
[ 980.930000] [<8012ce18>] do_execve+0x32c/0x4c0
[ 980.930000] [<80062b5c>] handle_sys+0x11c/0x140
[ 980.930000]
[ 980.930000]
Code: 00408021 8e220014 02021021 <8c430000> 41666000 30c60001 000000c0
8e220000 8c450000
[ 981.300000] ---[ end trace 300a71b00dd6ce29 ]---
[ 981.310000] Unhandled kernel unaligned access[#2]:
[ 981.310000] CPU: 0 PID: 8335 Comm: hotplug-call Tainted: G D
3.18.9 #3
[ 981.310000] task: 85a1d838 ti: 858b4000 task.ti: 858b4000
[ 981.310000] $ 0 : 00000000 00000000 00849b25 00000000
[ 981.310000] $ 4 : 87802f00 00000020 81102020 0003d593
[ 981.310000] $ 8 : 0a00123f 858b5834 00000000 00020010
[ 981.310000] $12 : 000000e4 0000004e 00000000 0a00123f
[ 981.310000] $16 : 00849b25 87802f00 00000020 00000011
[ 981.310000] $20 : 00000001 ffffffff 00000000 00000000
[ 981.310000] $24 : 00000000 86dc13cc
[ 981.310000] $28 : 858b4000 858b56e8 00000001 801401e8
[ 981.310000] Hi : 00000028
[ 981.310000] Lo : 00000058
[ 981.310000] epc : 801b6e80 kmem_cache_alloc+0x4c/0xec
[ 981.310000] Tainted: G D
[ 981.310000] ra : 801401e8 dst_alloc+0x48/0x198
[ 981.310000] Status: 1100fc03 KERNEL EXL IE
[ 981.310000] Cause : 00800010
[ 981.310000] BadVA : 00849b25
[ 981.310000] PrId : 00019750 (MIPS 74Kc)
[ 981.310000] 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
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
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
sch_teql em_nbyte sch_codel sch_dsmark em_meta sch_gred sch_htb cls_basic
act_ipt sch_red act_police em_text sch_tbf sch_sfq 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 ledtrig_gpio batman_adv libcrc32c crc16
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 tunnel6 tunnel4 tun 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
ledtrig_transient ehci_pci ehci_platform ehci_hcd gpio_button_hotplug
usbcore nls_base usb_common crc32c_generic crypto_hash
[ 981.310000] Process hotplug-call (pid: 8335, threadinfo=858b4000,
task=85a1d838, tls=77ff5440)
[ 981.310000] Stack : 00000000 00000000 00000002 80129ab4 ffffff80
803788d0 87824800 801401e8
858b5798 869d8900 84cf5d00 80376040 0a00123f ffffff80 869d8900
84cf5d00
00000000 00000000 80376040 8023acd4 87885000 00000001 00000000
858b5798
00000011 00000001 0a000001 801960e4 000000c3 0000fcff 86b72800
8026c6e0
00000000 c0736030 c0736000 86fdc4a4 00000000 00000017 00000000
0000442c
...
[ 981.310000] Call Trace:
[ 981.310000] [<801b6e80>] kmem_cache_alloc+0x4c/0xec
[ 981.310000] [<801401e8>] dst_alloc+0x48/0x198
[ 981.310000] [<8023acd4>] rt_dst_alloc+0x4c/0x58
[ 981.310000] [<801960e4>] ip_route_input_noref+0x774/0x9b0
[ 981.310000] [<800cf290>] arp_process+0x1e8/0x654
[ 981.310000] [<800a3d30>] __netif_receive_skb_core+0x630/0x6b0
[ 981.310000] [<800ed7d4>] br_handle_frame+0x2b8/0x3f0
[ 981.310000] [<800a3bbc>] __netif_receive_skb_core+0x4bc/0x6b0
[ 981.310000] [<800c1ec8>] ag71xx_poll+0x3fc/0x5d0
[ 981.310000] [<801e277c>] net_rx_action+0x10c/0x1e0
[ 981.310000] [<80091330>] __do_softirq+0xf8/0x230
[ 981.310000] [<8019ccd0>] irq_exit+0x54/0x70
[ 981.310000] [<80060830>] ret_from_irq+0x0/0x4
[ 981.310000] [<801b7764>] kmsg_dump_get_buffer+0x2b4/0x308
[ 981.310000] [<801119bc>] crashlog_do_dump+0x104/0x138
[ 981.310000] [<801b7474>] kmsg_dump+0xe4/0x120
[ 981.310000] [<80126d38>] die+0xb8/0x110
[ 981.310000] [<8012a060>] do_ade+0x470/0x890
[ 981.310000] [<80060820>] ret_from_exception+0x0/0x10
[ 981.310000] [<801b6e80>] kmem_cache_alloc+0x4c/0xec
[ 981.310000] [<801f2a50>] ovl_follow_link+0x88/0xd0
[ 981.310000] [<801fdcec>] path_openat+0x2d8/0x580
[ 981.310000] [<8012de90>] do_filp_open+0x3c/0xa4
[ 981.310000] [<80134108>] do_open_exec+0x28/0xfc
[ 981.310000] [<801ef5cc>] open_exec+0x20/0x2c
[ 981.310000] [<801c01fc>] load_elf_binary+0x200/0x1240
[ 981.310000] [<80249e70>] search_binary_handler+0x88/0x1c8
[ 981.310000] [<8012ce18>] do_execve+0x32c/0x4c0
[ 981.310000] [<80062b5c>] handle_sys+0x11c/0x140
[ 981.310000]
[ 981.310000]
Code: 00408021 8e220014 02021021 <8c430000> 41666000 30c60001 000000c0
8e220000 8c450000
[ 981.770000] ---[ end trace 300a71b00dd6ce2a ]---
[ 981.770000] Kernel panic - not syncing: Fatal exception in interrupt
[ 981.770000] Rebooting in 3 seconds..
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/19233>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
_______________________________________________
openwrt-tickets mailing list
[email protected]
https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-tickets
