[FS#513] ath5k crash at ath5k_debug_printtxbuf on load

[LEDE Bugs]

The following task has a new comment added:

FS#513 - ath5k crash at ath5k_debug_printtxbuf on load
User who did this - Xuefer (xuefer)

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[   56.912572] Loading modules backported from Linux version wt-2017-01-31-0-ge882dff19e7f
[   56.921078] Backport generated by backports.git backports-20160324-13-g24da7d3c
[   62.212667] CPU 0 Unable to handle kernel paging request at virtual address c0430250, epc == c0430250, ra == c043a618
[   62.223767] Oops[#1]:
[   62.226172] CPU: 0 PID: 832 Comm: modprobe Not tainted 4.4.47 #0
[   62.232272] task: 80923758 ti: 80e30000 task.ti: 80e30000
[   62.237726] $ 0   : 00000000 1000b400 c05229b4 00000005
[   62.243081] $ 4   : 000072e8 024080c0 00000000 ffffffff
[   62.248419] $ 8   : 00000002 0000001c 00000010 00000001
[   62.253758] $12   : ffffff80 ffffff80 00000000 2f736269
[   62.259096] $16   : 000067a8 c055d5f4 00000000 803a6160
[   62.264436] $20   : 803e2058 b0000000 00000003 024000c0
[   62.269775] $24   : 00000010 c0507060
[   62.275114] $28   : 80e30000 80e31bb0 800a0d50 c043a618
[   62.280458] Hi    : 00000000
[   62.283390] Lo    : 0000001c
[   62.286413] epc   : c0430250 0xc0430250
[   62.290538] ra    : c043a618 wiphy_new_nm+0x1d8/0x650 [cfg80211]
[   62.296616] Status: 1000b403 KERNEL EXL IE
[   62.300915] Cause : 10800008 (ExcCode 02)
[   62.304973] BadVA : c0430250
[   62.307909] PrId  : 00019064 (MIPS 4KEc)
[   62.311878] Modules linked in: ath5k(+) ath mac80211 cfg80211 compat pppoe ppp_async pppox ppp_generic nf_conntrack_netlink nf_conntrack_ipv6 iptable_nat ipt_REJECT ipt_MASQUERADE xt_tim$
 xt_tcpudp xt_tcpmss xt_string xt_statistic xt_state xt_recent xt_nat xt_multiport xt_mark xt_mac xt_limit xt_length xt_hl xt_helper xt_ecn xt_dscp xt_conntrack xt_connmark xt_connlimit xt_$
onnbytes xt_comment xt_TCPMSS xt_REDIRECT xt_NETMAP xt_LOG xt_HL xt_DSCP xt_CLASSIFY ts_kmp ts_fsm ts_bm slhc nfnetlink nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_conntrack_ip$
4 nf_nat_ipv4 nf_nat_ftp nf_nat nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack_ftp iptable_mangle iptable_filter ipt_ECN ip_tables crc_ccitt act_connmark nf_con$
track act_skbedit act_mirred em_u32 cls_u32 cls_tcindex cls_flow cls_route cls_fw sch_tbf sch_htb sch_hfsc sch_ingress ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_mangle i$
6table_filter ip6_tables x_tables ifb tun zram lzo_decompress lzo_compress lz4_decompress lz4_compress zsmalloc gpio_button_hotplug aead cryptomgr crypto_null crypto_hash
[   62.411304] Process modprobe (pid: 832, threadinfo=80e30000, task=80923758, tls=77e38d48)
[   62.419541] Stack : 80e69b40 8089fdc0 8036d248 00000001 803a6170 805dfb7c 00000000 803a6160
          803e2058 c0507180 80e69b40 8089fdc0 80e69b40 80e69be0 8089fdc0 803a6170
          803a6170 80410000 803a6160 805d9138 800a0d50 801383f4 805e2ef4 8007848c
          803a6170 805e2ef4 80410000 805e2ef4 80410000 00000002 00000017 801e0418
          80837a88 8013812c 1000b400 00000001 803a6170 803a6170 803a61a4 801dea5c
          ...
[   62.455893] Call Trace:
[   62.458880] [] ieee80211_alloc_hw_nm+0x120/0x6b4 [mac80211]
[   62.466003] [] ath5k_debug_printtxbuf+0x354/0x46c [ath5k]
[   62.472424] [] module_sect_show+0x0/0x18
[   62.477355] [] sysfs_do_create_link_sd.isra.0+0x6c/0xc4
[   62.483579] [] blocking_notifier_call_chain+0x14/0x20
[   62.489643] [] platform_drv_probe+0x28/0x6c
[   62.494871] [] sysfs_create_dir_ns+0x48/0xa0
[   62.500111] [] driver_probe_device+0x198/0x284
[   62.505562] [] klist_devices_put+0x0/0x8
[   62.510487] [] klist_next+0x40/0x110
[   62.515068] [] __driver_attach+0x54/0xb4
[   62.519950] [] next_device+0x10/0x30
[   62.524518] [] __driver_attach+0x0/0xb4
[   62.529307] [] bus_for_each_dev+0x98/0xa8
[   62.534317] [] klist_add_tail+0x24/0x50
[   62.539490] [] init_module+0x0/0x2c [ath5k]
[   62.544661] [] bus_get+0x28/0x3c
[   62.548976] [] bus_add_driver+0x1a0/0x1f8
[   62.553974] [] module_sect_show+0x0/0x18
[   62.558866] [] kvasprintf+0x70/0x94
[   62.563665] [] init_module+0x0/0x2c [ath5k]
[   62.568857] [] driver_find+0x1c/0x48
[   62.573691] [] init_module+0x0/0x2c [ath5k]
[   62.578877] [] driver_register+0xbc/0xfc
[   62.584148] [] init_module+0x0/0x2c [ath5k]
[   62.589669] [] init_module+0x0/0x2c [ath5k]
[   62.594858] [] do_one_initcall+0x8c/0x230
[   62.600096] [] init_module+0x0/0x2c [ath5k]
[   62.605366] [] call_usermodehelper_exec+0x150/0x160
[   62.611413] [] do_init_module+0x74/0x1c8
[   62.616382] [] __vunmap+0xac/0x114
[   62.620875] [] load_module+0x155c/0x1b70
[   62.625810] [] unknown_module_param_cb+0x0/0xac
[   62.631328] [] __vmalloc_node+0x34/0x40
[   62.636134] [] SyS_init_module+0x7c/0x168
[   62.641106] [] SyS_init_module+0x104/0x168
[   62.646272] [] syscall_common+0x30/0x54
[   62.651083] [] __bzero+0xbc/0x164
[   62.655331]
[   62.656861]
Code: (Bad address in epc)
[   62.660868]
[   62.662923] ---[ end trace 12d25e1a5a00f002 ]---
[   62.676972] Fatal exception: panic in 5 seconds
[   67.685744] Kernel panic - not syncing: Fatal exception
[   67.696317] Rebooting in 3 seconds..

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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=513#comment1818