[FS#555] mac80211/ath9k warning: Rate marked as an HT rate but passed status->rate_idx is not an MCS index

[LEDE Bugs]

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

User who did this - Baptiste Jonglez (bjonglez) 

Attached to Project - LEDE Project
Summary - mac80211/ath9k warning: Rate marked as an HT rate but passed status->rate_idx is not an MCS index
Task Type - Bug Report
Category - Kernel
Status - New
Assigned To - 
Operating System - All
Severity - Low
Priority - Low
Reported Version - lede-17.01
Due in Version - Undecided
Due Date - Undecided
Details - I have been using LEDE 17.01 on a WR841N v8, with a simple 2.4 GHz AP ('mixed-psk' security).

Recently I have seen this kernel warning in the logs: it might be nothing or it might be something important, who knows.


Feb 23 17:23:59 AP4 kernel: [62871.843902] ------------[ cut here ]------------
Feb 23 17:23:59 AP4 kernel: [62871.848752] WARNING: CPU: 0 PID: 0 at compat-wireless-2016-10-08/net/mac80211/rx.c:4180 0x80e2529c [mac80211 at 80e00000+0x5f500]()
Feb 23 17:23:59 AP4 kernel: [62871.860717] Rate marked as an HT rate but passed status->rate_idx is not an MCS index [0-76]: 113 (0x71)
Feb 23 17:23:59 AP4 kernel: [62871.870518] Modules linked in: ath9k ath9k_common pppoe ppp_async iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv6 nf_conntrack_ipv4 mac80211 ipt_REJECT ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_nat nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack ipta
Feb 23 17:23:59 AP4 kernel: [62871.930136] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.50 #0
Feb 23 17:23:59 AP4 kernel: [62871.936073] Stack : 80386534 00000000 00000001 803e0000 00000000 00000000 00000000 00000000
Feb 23 17:23:59 AP4 kernel: [62871.936073] #011  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Feb 23 17:23:59 AP4 kernel: [62871.936073] #011  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Feb 23 17:23:59 AP4 kernel: [62871.936073] #011  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Feb 23 17:23:59 AP4 kernel: [62871.936073] #011  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Feb 23 17:23:59 AP4 kernel: [62871.936073] #011  ...
Feb 23 17:23:59 AP4 kernel: [62871.973122] Call Trace:[] 0x80071a50
Feb 23 17:23:59 AP4 kernel: [62871.977762] [] 0x80071a50
Feb 23 17:23:59 AP4 kernel: [62871.981372] [] 0x800817e8
Feb 23 17:23:59 AP4 kernel: [62871.984987] [] 0x80e2529c [mac80211 at 80e00000+0x5f500]
Feb 23 17:23:59 AP4 kernel: [62871.991120] [] 0x80081844
Feb 23 17:23:59 AP4 kernel: [62871.994729] [] 0x802a385c
Feb 23 17:23:59 AP4 kernel: [62871.998352] [] 0x80e2529c [mac80211 at 80e00000+0x5f500]
Feb 23 17:23:59 AP4 kernel: [62872.004468] [] 0x8025fea8
Feb 23 17:23:59 AP4 kernel: [62872.008086] [] 0x8026008c
Feb 23 17:23:59 AP4 kernel: [62872.011694] [] 0x80d08388 [ath9k_common at 80d08000+0x47e0]
Feb 23 17:23:59 AP4 kernel: [62872.018112] [] 0x81ba77dc [ath9k at 81ba0000+0x16650]
Feb 23 17:23:59 AP4 kernel: [62872.023975] [] 0x81ba77bc [ath9k at 81ba0000+0x16650]
Feb 23 17:23:59 AP4 kernel: [62872.029854] [] 0x81ba4a44 [ath9k at 81ba0000+0x16650]
Feb 23 17:23:59 AP4 kernel: [62872.035704] [] 0x800843a8
Feb 23 17:23:59 AP4 kernel: [62872.039327] [] 0x80083d64
Feb 23 17:23:59 AP4 kernel: [62872.042937] [] 0x800a7e08
Feb 23 17:23:59 AP4 kernel: [62872.046547] [] 0x8006a950
Feb 23 17:23:59 AP4 kernel: [62872.050169] [] 0x80060bf4
Feb 23 17:23:59 AP4 kernel: [62872.053769] 
Feb 23 17:23:59 AP4 kernel: [62872.055314] ---[ end trace 90699e3e72694b86 ]---
Feb 23 17:24:02 AP4 kernel: [62875.131392] ath: phy0: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020 DMADBG_7=0x00024300



 

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=555