[FS#961] mac80211 / warning / ieee80211_ibss_leave / 17.01

[LEDE Bugs]

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

User who did this - fenggui321 (fenggui321) 

Attached to Project - LEDE Project
Summary - mac80211 / warning / ieee80211_ibss_leave / 17.01
Task Type - Bug Report
Category - Kernel
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - lede-17.01
Due in Version - Undecided
Due Date - Undecided
Details - spotted on COMFAST CF-E316N v2 with LEDE 17.01 r3131-42f3c1f(selfcompiled):
reproduce:No idea how to reproduce. Happens at random.8 hour 
[26218.476892] ------------[ cut here ]------------
[26218.481825] WARNING: CPU: 0 PID: 12921 at compat-wireless-2016-10-08/net/mac80211/tx.c:979 ieee80211_probereq_get+0x368/0x1628 [mac80211]()
[26218.494548] Modules linked in: ath9k ath9k_common pppoe ppp_async iptable_nat ath9k_hw ath pptp pppox ppp_mppe ppp_generic nf_nat_pptp nf_nat_ipv4 nf_conntrack_pptp nf_conntrack_ipv4 mac80211 ipt_REJECT ipt_MASQUERADE cfg80211 xt_u32 xt_time xt_statistic xt_state xt_recent xt_quota xt_physdev xt_owner xt_nat xt_multiport xt_length 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 slhc nf_reject_ipv4 nf_nat_tftp nf_nat_snmp_basic nf_nat_sip nf_nat_redirect nf_nat_proto_gre nf_nat_masquerade_ipv4 nf_nat_irc nf_nat_h323 nf_nat_ftp nf_nat_amanda nf_nat nf_log_ipv4 nf_log_common nf_defrag_ipv4 nf_conntrack_tftp nf_conntrack_snmp nf_conntrack_sip nf_conntrack_rtcache nf_conntrack_proto_gre nf_conntrack_irc nf_conntrack_h323 nf_conntrack_ftp nf_conntrack_broadcast nf_conntrack_amanda nf_conntrack iptable_raw iptable_mangle iptable_filter ipt_ECN ip_tables crc_ccitt compat br_netfilter act_skbedit act_mirred em_u32 cls_tcindex cls_route sch_tbf sch_hfsc sch_ingress ip_gre gre ip_tunnel sha1_generic ecb gpio_button_hotplug cryptomgr aead crypto_null crypto_hash
[26218.601080] CPU: 0 PID: 12921 Comm: kworker/u2:2 Tainted: G        W       4.4.47 #1
[26218.609046] Workqueue: phy0 ieee80211_ibss_leave [mac80211]
[26218.614698] Stack : 837a9000 0000001a 835bcb40 800a6798 83e0519c 803c8603 80366a2c 00003279
          80390920 83c41a8c 803c0000 800a4718 835bcb40 800a6798 8036bf18 803c0000
          00000003 83c41a8c 803c0000 80094780 835bcb40 83c41ac4 00000000 801ea7b4
          803c77b0 801ea700 83613adc 83f3a100 83f3a200 70687930 00000000 00000000
          00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
          ...
[26218.651077] Call Trace:
[26218.653631] [] vprintk_default+0x24/0x30
[26218.658527] [] printk+0x2c/0x38
[26218.662612] [] vprintk_default+0x24/0x30
[26218.667505] [] print_worker_info+0x148/0x174
[26218.672770] [] serial8250_console_putchar+0x0/0x44
[26218.678526] [] wait_for_xmitr+0x18/0xcc
[26218.683415] [] ieee80211_ibss_leave+0x338/0x196c [mac80211]
[26218.690027] [] warn_slowpath_common+0xa0/0xd0
[26218.695336] [] dump_stack+0x14/0x28
[26218.699771] [] show_stack+0x50/0x84
[26218.704192] [] warn_slowpath_common+0xa0/0xd0
[26218.709600] [] ieee80211_probereq_get+0x368/0x1628 [mac80211]
[26218.716364] [] warn_slowpath_null+0x18/0x24
[26218.721645] [] ieee80211_probereq_get+0x368/0x1628 [mac80211]
[26218.728557] [] ieee80211_tx_dequeue+0x7a4/0x96c [mac80211]
[26218.735059] [] wake_bit_function+0x0/0x58
[26218.740191] [] ath_assign_seq+0x374/0x600 [ath9k]
[26218.745982] [] ieee80211_get_tx_rates+0x208/0x63c [mac80211]
[26218.752723] [] ath_assign_seq+0x45c/0x600 [ath9k]
[26218.758440] [] ath_assign_seq+0x45c/0x600 [ath9k]
[26218.764155] [] ath_stoprecv+0xe2c/0x11c0 [ath9k]
[26218.769810] [] ath_txq_schedule+0x7a4/0x818 [ath9k]
[26218.775759] [] ath9k_wake_tx_queue+0x98/0xc0 [ath9k]
[26218.781822] [] ieee80211_wake_queue_by_reason+0x20/0x44 [mac80211]
[26218.789120] [] ieee80211_send_bar+0x4fc/0x514 [mac80211]
[26218.795435] [] check_preempt_wakeup+0xe0/0x178
[26218.800962] [] ieee80211_process_addba_resp+0x190/0x2cc [mac80211]
[26218.808253] [] ieee80211_ibss_leave+0x558/0x196c [mac80211]
[26218.814874] [] pick_next_task_fair+0xe8/0x16c
[26218.820199] [] deactivate_task+0x60/0x8c
[26218.825118] [] process_one_work+0x1f8/0x32c
[26218.830311] [] worker_thread+0x2b0/0x400
[26218.835173] [] worker_thread+0x0/0x400
[26218.839876] [] worker_thread+0x0/0x400
[26218.844564] [] kthread+0xd8/0xec
[26218.848769] [] kthread+0x0/0xec
[26218.852852] [] ret_from_kernel_thread+0x14/0x1c
[26218.858334] 
[26218.859864] ---[ end trace a183d244c0d1ad7d ]---
   

 

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=961