#21865: Ath9k crash RouterBoard RB435G
-------------------------+-----------------------------------
 Reporter:  mario_lopes  |      Owner:  developers
     Type:  defect       |     Status:  new
 Priority:  normal       |  Milestone:  Barrier Breaker 14.07
Component:  packages     |    Version:  Barrier Breaker 14.07
 Keywords:               |
-------------------------+-----------------------------------
 Hello all.

 I am testing RouterBoard R52n-M on RB435G (680MHz) system with OpenWRT
 14.07, downloaded from here
 https://downloads.openwrt.org/barrier_breaker/14.07/ar71xx/mikrotik/ and
 sometime after launching iperf in UDP mode, system restarts.

 I did try to install a trunk version (r48688) but was not successfull.

 Thanks.

 Kernel log as follows:

 {{{
 [ 2538.790000] Data bus error, epc == 8f09ba14, ra == 8f09ba14
 [ 2538.790000] Oops[#1]:
 [ 2538.790000] CPU: 0 PID: 3221 Comm: kworker/u2:2 Not tainted 3.10.49 #5
 [ 2538.790000] Workqueue: phy1 ath_reset_work [ath9k]
 [ 2538.790000] task: 8f8b2180 ti: 8e850000 task.ti: 8e850000
 [ 2538.790000] $ 0   : 00000000 00000001 deadc0de 00004038
 [ 2538.790000] $ 4   : b0014038 00004038 00004038 8fae1254
 [ 2538.790000] $ 8   : 1000f400 1000001f 000000c8 000009ea
 [ 2538.790000] $12   : 3c6ef35f 0000000a 802dd924 00000001
 [ 2538.790000] $16   : 8f896010 8fb0d440 80334778 00000001
 [ 2538.790000] $20   : 00000080 00000001 80320000 802ed6fc
 [ 2538.790000] $24   : 00000000 800b8e4c
 [ 2538.790000] $28   : 8e850000 8e851bd0 802ed710 8f09ba14
 [ 2538.790000] Hi    : 00000000
 [ 2538.790000] Lo    : 19d60000
 [ 2538.790000] epc   : 8f09ba14 ath9k_hw_intrpend+0x40/0xa4 [ath9k_hw]
 [ 2538.790000]     Not tainted
 [ 2538.790000] ra    : 8f09ba14 ath9k_hw_intrpend+0x40/0xa4 [ath9k_hw]
 [ 2538.790000] Status: 1000f402 KERNEL EXL
 [ 2538.790000] Cause : 1080001c
 [ 2538.790000] PrId  : 00019374 (MIPS 24Kc)
 [ 2538.790000] Modules linked in: ath9k ath9k_common pppoe ppp_async
 iptable_nag
 [ 2538.790000] Process kworker/u2:2 (pid: 3221, threadinfo=8e850000,
 task=8f8b2)
 [ 2538.790000] Stack : 8fbe9440 8fbd02bc 00000000 8f01b1e4 8f896010
 8fae38c0 8f0
           8e851cd0 8f0e23c0 00000000 00008840 8fb12c80 8fb7c880 0000002a
 8033478
           00000001 8014afa8 00000000 80320000 802ed6fc 8014b0fc 8e851c38
 8fb7340
           80334778 00000004 8f896248 00000002 00000004 00000002 00000044
 0000784
           ffbfffff 8014af20 8f2fe240 8f2fe240 8fb0cac0 8f0e23c0 80334778
 8014b20
           ...
 [ 2538.790000] Call Trace:
 [ 2538.790000] [<8f09ba14>] ath9k_hw_intrpend+0x40/0xa4 [ath9k_hw]
 [ 2538.790000] [<8fae38c0>] ath_isr+0x3c/0x25c [ath9k]
 [ 2538.790000] [<8014afa8>] handle_irq_event_percpu+0x64/0x1ec
 [ 2538.790000] [<8014af20>] handle_irq_event+0x3c/0x60
 [ 2538.790000] [<8014b210>] handle_level_irq+0xe0/0xf8
 [ 2538.790000] [<8013f7f4>] generic_handle_irq+0x28/0x44
 [ 2538.790000] [<8013f7f4>] generic_handle_irq+0x28/0x44
 [ 2538.790000] [<80109510>] do_IRQ+0x1c/0x2c
 [ 2538.790000] [<80060830>] ret_from_irq+0x0/0x4
 [ 2538.790000] [<8f08c298>] ar9002_hw_attach_phy_ops+0x18b4/0x216c
 [ath9k_hw]
 [ 2538.790000] [<8f08c2a8>] ar9002_hw_attach_phy_ops+0x18c4/0x216c
 [ath9k_hw]
 [ 2538.790000]
 [ 2538.790000]
 Code: 00c5180b  0040f809  00602821 <30430082> 10600003  2403ffff  1443fff3
 000
 [ 2539.060000] ---[ end trace 9659eb1db0f89264 ]---
 [ 2539.070000] Kernel panic - not syncing: Fatal exception in interrupt
 [ 2539.070000] Rebooting in 3 seconds..
 }}}

--
Ticket URL: <https://dev.openwrt.org/ticket/21865>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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