[FS#489] ath9k unstable - kernel panic a few seconds after client connects: needs lockdep annotation

[LEDE Bugs]

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

User who did this - Xuefer (xuefer) 

Attached to Project - LEDE Project
Summary - ath9k unstable - kernel panic a few seconds after client connects: needs lockdep annotation
Task Type - Bug Report
Category - Kernel
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - i built my own lede for x86-64, it's 2017-02-09
# uname -a
Linux x 4.9.8 #0 SMP Wed Feb 8 09:40:38 2017 x86_64 GNU/Linux
source versoin: fd94fa6 2017-02-07
device Intel Atom D525
it seems to happen before kernel 4.9 (which was 4.4.39)

looks like FS#473 but not identical, i'm not sure

04:05.0 Network controller: Qualcomm Atheros AR9160 Wireless Network Adapter [AR9001 802.11(a)bgn] (rev 01)
        Subsystem: Qualcomm Atheros Device 2082
        Flags: bus master, 66MHz, medium devsel, latency 168, IRQ 21
        Memory at febf0000 (32-bit, non-prefetchable) [size=64K]
        Capabilities: [44] Power Management version 2
        Kernel driver in use: ath9k

see attachment for call trace

keywords: ath_tx_process_buffer, lock_acquire, lockdep, "the code is fine but needs lockdep annotation"


One or more files have been attached.

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=489