[FS#143] Kernel Panic on latest trunk build ar71xx

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - gendouhydeist (gendouhydeist) 

Attached to Project - LEDE Project
Summary - Kernel Panic on latest trunk build ar71xx
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - router: Buffalo WZR-600DHP

[   30.925309] ar71xx: pll_reg 0xb8050010: 0x110000
[   30.929933] eth0: link up (1000Mbps/Full duplex)
[   30.934786] CPU 0 Unable to handle kernel paging request at virtual address 00000200, epc == 87350290, ra == 8735223c
[   30.945430] Oops[#1]:
[   30.947699] CPU: 0 PID: 98 Comm: kworker/0:1 Not tainted 4.4.19 #0
[   30.953884] Workqueue: events_power_efficient phy_state_machine
[   30.959792] task: 87cb0f00 ti: 87d1e000 task.ti: 87d1e000
[   30.965173] $ 0   : 00000000 00000001 80000001 00000200
[   30.970420] $ 4   : 86aee0e0 00000001 00000000 7f96ab85
[   30.975667] $ 8   : 86aee138 86aee138 00000000 00000000
[   30.980915] $12   : 00890002 c0a80001 00000000 c0a800ff
[   30.986163] $16   : 86aee0e0 86decf18 803a74a0 000003f6
[   30.991409] $20   : 00000358 00000358 803a74a0 00000000
[   30.996657] $24   : 00000000 87358970
[   31.001905] $28   : 87d1e000 87d1f938 86aee120 8735223c
[   31.007152] Hi    : 000003f6
[   31.010018] Lo    : e7d4b000
[   31.012933] epc   : 87350290 nf_ct_untracked_status_or+0x78/0x98 [nf_conntrack]
[   31.020240] ra    : 8735223c __nf_conntrack_confirm+0xe4/0x550 [nf_conntrack]
[   31.027353] Status: 1000fc03 KERNEL EXL IE
[   31.031554] Cause : 0080000c (ExcCode 03)
[   31.035552] BadVA : 00000200
[   31.038421] PrId  : 00019374 (MIPS 24Kc)
[   31.042332] Modules linked in: ath9k ath9k_htc ath9k_common rt2800usb rt2800lib rt2500usb pppoe ppp_async iptable_nat ath9k_hw ath snd_usb_audio rtl8187 rt73usb rt2x00usb rt2x00lib pppox ppp_generic p54usb p54common nf_nat_ipv4 nf_conntrack_netlink nf_conntrack_ipv4 mt7601u mac80211 iptable_raw iptable_mangle iptable_filter ipt_REJECT ipt_MASQUERADE ipt_ECN ip_tables cfg80211 xt_time xt_tcpudp xt_tcpmss xt_string xt_statistic xt_state xt_recent xt_quota xt_pkttype xt_physdev xt_owner xt_nat xt_multiport xt_mark xt_mac xt_limit xt_length xt_id xt_hl xt_helper xt_ecn xt_dscp xt_conntrack xt_connmark xt_connlimit xt_connbytes xt_comment xt_addrtype xt_TCPMSS xt_REDIRECT xt_NETMAP xt_LOG xt_HL xt_DSCP xt_CT xt_CLASSIFY x_tables ums_usbat ums_sddr55 ums_sddr09 ums_karma ums_jumpshot ums_isd200 ums_freecom ums_datafab ums_cypress ums_alauda ts_kmp ts_fsm ts_bm snd_usbmidi_lib slhc nfnetlink nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_nat nf_log_ipv4 nf_log_common nf_defrag_ipv4 nf_conntrack_rtcache libcrc32c crc_itu_t crc_ccitt compat cdc_wdm br_netfilter sch_cake act_connmark nf_conntrack act_skbedit act_mirred em_u32 cls_u32 cls_tcindex cls_flow cls_route cls_fw sch_hfsc sch_ingress snd_soc_ac97 snd_soc_core i2c_dev ledtrig_usbdev sr_mod cdrom snd_via82xx snd_intel8x0 snd_mpu401_uart snd_ac97_codec ac97_bus ifb snd_compress snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_rawmidi snd_seq_device snd_hwdep snd input_core soundcore cifs regmap_spi regmap_mmio regmap_i2c regmap_core zram lz4_decompress lz4_compress zsmalloc eeprom_93cx6 sha256_generic md5 md4 hmac ecb des_generic usb_storage ohci_platform ohci_hcd ehci_platform ehci_hcd sd_mod scsi_mod gpio_button_hotplug ext4 jbd2 mbcache btrfs zlib_inflate zlib_deflate xor raid6_pq lzo_decompress lzo_compress usbcore nls_base usb_common crc16 cryptomgr aead crypto_null crc32c_generic crypto_hash
[   31.207383] Process kworker/0:1 (pid: 98, threadinfo=87d1e000, task=87cb0f00, tls=00000000)
[   31.215708] Stack : c0a80001 00000000 00000000 00000000 86911240 86aee0e0 803a7754 86911240
          00000001 00000004 fffffffd 8038c4e0 02080020 86d2a384 87d1f9d4 87d1fa0c
          803a7754 2913a6e5 87d1f9d4 87d1f9d4 87d1fa0c 8027544c 200003fd 00000000
          8723b900 86adab80 87c7083c 86911240 86911240 87d1fa0c fffffffb 00000001
          00000003 802754f0 00000000 00000000 00000003 802754f0 00000000 86d10184
          ...
[   31.251464] Call Trace:
[   31.253925] [] nf_ct_untracked_status_or+0x78/0x98 [nf_conntrack]
[   31.260908] [] __nf_conntrack_confirm+0xe4/0x550 [nf_conntrack]
[   31.267701] [] 0x86d2a384
[   31.271177]
[   31.272665]
Code: 00020336  8c820008  30450001  14a00002  00000000  ac430004  24020200  ac82000c
[   31.282653] ---[ end trace 53014d60e6f2deb1 ]---
[   31.289766] Kernel panic - not syncing: Fatal exception in interrupt

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=143