#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@…):
and one more on reboot of archer-c5:
{{{
[ 564.300000] CPU 0 Unable to handle kernel paging request at virtual
address c0000000, epc == c0000000, ra == 800a9c38
[ 564.310000] Oops[#1]:
[ 564.310000] CPU: 0 PID: 3 Comm: ksoftirqd/0 Not tainted 3.18.9 #2
[ 564.310000] task: 878289b0 ti: 87840000 task.ti: 87840000
[ 564.310000] $ 0 : 00000000 00000000 c0000000 00000000
[ 564.310000] $ 4 : 87b965ff 00000100 87b96e80 000391cd
[ 564.310000] $ 8 : 00000001 000391cc 87b96c00 80380000
[ 564.310000] $12 : 7fa6afd0 00000000 0000007e 00000000
[ 564.310000] $16 : 00850ec3 800a9c38 0000000a 00000003
[ 564.310000] $20 : 00000100 803e0000 803ec774 00000009
[ 564.310000] $24 : 00000001 00000000
[ 564.310000] $28 : 87840000 87841d08 00000024 800a9c38
[ 564.310000] Hi : 00000000
[ 564.310000] Lo : 00000006
[ 564.310000] epc : c0000000 0xc0000000
[ 564.310000] Not tainted
[ 564.310000] ra : 800a9c38 __rcu_process_callbacks+0xac/0xd8
[ 564.310000] Status: 1100fc03 KERNEL EXL IE
[ 564.310000] Cause : 00800008
[ 564.310000] BadVA : c0000000
[ 564.310000] PrId : 00019750 (MIPS 74Kc)
[ 564.310000] 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_queue nfnetlink_log 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
i2c_algo_pcf i2c_algo_pca ath10k_pci ath10k_core ath mac80211 cfg80211
compat i2c_dev 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
[ 564.310000] Process ksoftirqd/0 (pid: 3, threadinfo=87840000,
task=878289b0, tls=00000000)
[ 564.310000] Stack : 00000100 803e0000 803ec774 00000006 00000018
00000004 803ec798 80230a7c
0000002f 00000002 00000001 00000240 803ec78c 80091330 00000002
80144aa4
00000001 802287a8 00000000 87802700 04208040 0000673e 00000000
00000000
00000001 80368c60 85c50a50 0000a9c0 8036b750 85c50c00 00000000
8019ccd0
000008a0 800fa31c 85c6a000 86c61e08 00000000 80060830 00000001
85e69b00
...
[ 564.310000] Call Trace:
[ 564.310000] [<80230a7c>] rcu_process_callbacks+0x14/0x28
[ 564.310000] [<80091330>] __do_softirq+0xf8/0x230
[ 564.310000] [<80144aa4>] enable_irq+0x74/0x90
[ 564.310000] [<802287a8>] qca955x_ip2_irq_dispatch+0x64/0x7c
[ 564.310000] [<8019ccd0>] irq_exit+0x54/0x70
[ 564.310000] [<800fa31c>] build_skb+0x44/0xd4
[ 564.310000] [<80060830>] ret_from_irq+0x0/0x4
[ 564.310000] [<800a2ab8>] __netdev_alloc_skb+0x70/0x118
[ 564.310000] [<8011b640>] dequeue_task_fair+0x0/0x12c
[ 564.310000] [<802821fc>] tasklet_action+0x84/0xcc
[ 564.310000] [<800666b0>] __schedule+0x4c0/0x5b4
[ 564.310000] [<80211330>] pick_next_task_fair+0xe8/0x150
[ 564.310000] [<801564c4>] finish_task_switch.isra.59+0xc4/0x16c
[ 564.310000] [<800666b0>] __schedule+0x4c0/0x5b4
[ 564.310000] [<8026ba38>] smpboot_thread_fn+0x0/0x164
[ 564.310000] [<8026ba38>] smpboot_thread_fn+0x0/0x164
[ 564.310000] [<8026bb50>] smpboot_thread_fn+0x118/0x164
[ 564.310000] [<8026ba38>] smpboot_thread_fn+0x0/0x164
[ 564.310000] [<801bad98>] kthread+0xd8/0xe4
[ 564.310000] [<80249314>] schedule_tail+0x1c/0x6c
[ 564.310000] [<801bacc0>] kthread+0x0/0xe4
[ 564.310000] [<80060878>] ret_from_kernel_thread+0x14/0x1c
[ 564.310000]
[ 564.310000]
Code: 00000000 00000000 00000000 (Bad address in epc)
[ 564.310000]
[ 564.730000] ---[ end trace e1539b7a81b7df91 ]---
[ 564.740000] Kernel panic - not syncing: Fatal exception in interrupt
[ 564.740000] Rebooting in 3 seconds..
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/19234#comment:2>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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