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Opened 5 years ago

Last modified 3 years ago

#13405 new defect

kernel panic on atheros AR9230 chip (ATH9K module)

Reported by: dony74@… Owned by: developers
Priority: high Milestone: Chaos Calmer 15.05
Component: kernel Version: 10.03.1
Keywords: Cc:

Description

enable wireless, then kernel panic
==================================
Configuration file: /var/run/hostapd-phy0.conf
PCI error 1 at PCI addr 0x10017820
Data bus error, epc == 80de1aa0, ra == 80de1a9c
Oops#1:
Cpu 0
$ 0 : 00000000 00000000 deadc0de 00000000
$ 4 : b0008048 b0000000 02000020 00000000
$ 8 : 80de1a0c 00000003 00000004 80cc1044
$12 : 00000005 00000006 00000001 00000000
$16 : 80cc15c0 80cc8000 00008048 ffffffff
$20 : 02000020 00000002 00007894 ffbfffff
$24 : 00000010 00000000
$28 : 816d0000 816d1ca0 80cc8164 80de1a9c
Hi : 00000000
Lo : 19d60000
epc : 80de1aa0 ath9k_deinit_device+0x174/0x488 [ath9k]

Not tainted

ra : 80de1a9c ath9k_deinit_device+0x170/0x488 [ath9k]
Status: 1000f403 KERNEL EXL IE
Cause : 1080001c
PrId : 00019374 (MIPS 24Kc)
Modules linked in: usb_storage ohci_hcd nf_nat_snmp_basic nf_nat_sip nf_conntrac
k_sip nf_nat_rtsp nf_conntrack_rtsp nf_nat_pptp nf_conntrack_pptp nf_nat_h323 nf
_conntrack_h323 nf_nat_proto_gre nf_conntrack_proto_gre nf_nat_amanda nf_conntra
ck_amanda nf_nat_tftp nf_conntrack_tftp nf_nat_irc nf_conntrack_irc nf_nat_ftp n
f_conntrack_ftp xt_quota xt_pkttype xt_owner ipt_REDIRECT ipt_NETMAP ipt_MASQUER
ADE iptable_nat nf_nat xt_CONNMARK xt_recent xt_helper xt_conntrack xt_connmark
xt_connbytes xt_NOTRACK iptable_raw xt_state nf_conntrack_ipv4 nf_defrag_ipv4 nf
_conntrack ehci_hcd sd_mod pppoe pppox ipt_REJECT xt_TCPMSS ipt_LOG xt_comment x
t_multiport xt_mac xt_limit iptable_mangle iptable_filter ip_tables xt_tcpudp x_
tables ppp_async ppp_generic slhc vfat fat ext4 jbd2 cifs ath9k ath9k_common ath
9k_hw ath nls_utf8 mac80211 usbcore ts_fsm ts_bm ts_kmp scsi_mod nls_base mbcach
e crc16 crc_ccitt cfg80211 compat arc4 aes_generic deflate ecb cbc leds_gpio but
ton_hotplug gpio_buttons input_polldev input_core
Process hostapd (pid: 8888, threadinfo=816d0000, task=81883ae8, tls=00000000)
Stack : 00000001 00000000 81a89d68 816d1cd8 816d1cd8 80cc8000 0000016d 00000004

00000002 80d8ce5c 80cc8000 00000000 00000001 20000000 000002c7 80d8474c
80cc8000 80d84f58 00000001 80cc8000 00000000 00000000 80cc1e5c 20000000
00000000 80cc8164 00000000 80d86014 00000001 80cc0a40 80cc1e5c 00000001
7f813dd0 7f813df0 80cc8000 80cc15c0 80ca8800 80cc8164 80cc1e5c 00000001
...

Call Trace:
[<80de1aa0>] ath9k_deinit_device+0x174/0x488 [ath9k]

Code: 0c060ee9 00852021 8e050894 <00531024> 00548025 00b22821 0c060efe 0200
2021 8fbf0024
Disabling lock debugging due to kernel taint
Kernel panic - not syncing: Fatal exception in interrupt

Attachments (0)

Change History (8)

comment:1 Changed 5 years ago by dony74@…

typo ... wireless chip atheros AR9227

comment:2 follow-up: Changed 5 years ago by nbd

which OpenWrt version is this?

comment:3 in reply to: ↑ 2 Changed 5 years ago by cmtsij <cmtsij@…>

As I know, dony74 reproduce this issue based on backfire.10.3.1.
this issue is happened when I try to porting Openwrt on Vizio XWR100.
discuss here: https://forum.openwrt.org/viewtopic.php?id=43609

I reproduct this issue on code base trunk@36367. (01ca6e26f97769bf7e81ca0d0311d726ed0c00f3)
You can check out my github for detail.
https://github.com/cmtsij/openwrt/commits/xwr100

comment:4 Changed 4 years ago by jow

  • Milestone changed from Backfire 10.03.2 to Chaos Calmer (trunk)

Milestone Backfire 10.03.2 deleted

comment:5 Changed 3 years ago by cmtsij

I create some patches to prevent kerne panic for AR9227:
https://github.com/cmtsij/openwrt/commit/bf2e98aefa16285dc6957a2ec49c600d6ff2b518
https://github.com/cmtsij/openwrt/commit/b6abe3a0f8916dd986aaf5dc5a92c1d937c10d2f
But I think those patch is not good enough to submit to OpenWRT.
I hope someone can help me to review those patches.

comment:6 Changed 3 years ago by nbd

please check if this is reproducible with current trunk or BB

comment:7 Changed 3 years ago by cmtsij

This is reproducible with curren trunk.
I tested it on r43793 without those two patches with device XWR100.
(support XWR100 with this patch https://github.com/cmtsij/openwrt/commit/b8f722)
Here is full kernel log:

[    0.000000] Linux version 3.14.26 (anony@none) (gcc version 4.8.3 (OpenWrt/Linaro GCC 4.8-2014.04 r43793) ) #1 Mon Dec 29 16:53:12 CST 2014
[    0.000000] MyLoader: sysp=aaaa5554, boardp=aaaa5554, parts=aaaa5554
[    0.000000] bootconsole [early0] enabled
[    0.000000] CPU0 revision is: 00019374 (MIPS 24Kc)
[    0.000000] SoC: Atheros AR7161 rev 2
[    0.000000] Determined physical RAM map:
[    0.000000]  memory: 02000000 @ 00000000 (usable)
[    0.000000] Initrd not found or empty - disabling initrd
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x00000000-0x01ffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x00000000-0x01ffffff]
[    0.000000] On node 0 totalpages: 8192
[    0.000000] free_area_init_node: node 0, pgdat 80341ff0, node_mem_map 81000000
[    0.000000]   Normal zone: 64 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 8192 pages, LIFO batch:0
[    0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
[    0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 8128
[    0.000000] Kernel command line:  board=XWR100 console=ttyS0,115200 rootfstype=squashfs,jffs2 noinitrd
[    0.000000] PID hash table entries: 128 (order: -3, 512 bytes)
[    0.000000] Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000000] Writing ErrCtl register=00000000
[    0.000000] Readback ErrCtl register=00000000
[    0.000000] Memory: 28588K/32768K available (2392K kernel code, 133K rwdata, 524K rodata, 204K init, 187K bss, 4180K reserved)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS:51
[    0.000000] Clocks: CPU:680.000MHz, DDR:340.000MHz, AHB:170.000MHz, Ref:40.000MHz
[    0.000000] Calibrating delay loop...
[    0.060000] 452.19 BogoMIPS (lpj=2260992)
[    0.060000] pid_max: default: 32768 minimum: 301
[    0.060000] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.070000] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.080000] NET: Registered protocol family 16
[    0.080000] MIPS: machine is Vizio XWR100
[    2.730000] registering PCI controller with io_map_base unset
[    2.740000] bio: create slab <bio-0> at 0
[    2.750000] PCI host bridge to bus 0000:00
[    2.750000] pci_bus 0000:00: root bus resource [mem 0x10000000-0x16ffffff]
[    2.760000] pci_bus 0000:00: root bus resource [io  0x0000]
[    2.760000] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
[    2.770000] pci_bus 0000:00: scanning bus
[    2.770000] pci 0000:00:11.0: [168c:ff1d] type 00 class 0x020000
[    2.770000] pci 0000:00:11.0: calling ath9k_pci_fixup+0x0/0x248
[    2.770000] pci 0000:00:11.0: fixup device configuration
[    2.770000] pci 0000:00:11.0: reg 0x10: [mem 0x00000000-0x0000ffff]
[    2.770000] pci 0000:00:11.0: PME# supported from D0 D3hot
[    2.770000] pci 0000:00:11.0: PME# disabled
[    2.770000] pci 0000:00:12.0: [168c:ff1d] type 00 class 0x020000
[    2.770000] pci 0000:00:12.0: calling ath9k_pci_fixup+0x0/0x248
[    2.770000] pci 0000:00:12.0: fixup device configuration
[    2.780000] pci 0000:00:12.0: reg 0x10: [mem 0x00000000-0x0000ffff]
[    2.780000] pci 0000:00:12.0: PME# supported from D0 D3hot
[    2.780000] pci 0000:00:12.0: PME# disabled
[    2.780000] pci_bus 0000:00: fixups for bus
[    2.780000] pci_bus 0000:00: bus scan returning with max=00
[    2.780000] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00
[    2.780000] pci 0000:00:11.0: BAR 0: assigned [mem 0x10000000-0x1000ffff]
[    2.780000] pci 0000:00:11.0: BAR 0: set to [mem 0x10000000-0x1000ffff] (PCI address [0x10000000-0x1000ffff])
[    2.780000] pci 0000:00:12.0: BAR 0: assigned [mem 0x10010000-0x1001ffff]
[    2.790000] pci 0000:00:12.0: BAR 0: set to [mem 0x10010000-0x1001ffff] (PCI address [0x10010000-0x1001ffff])
[    2.790000] pci 0000:00:11.0: using irq 40 for pin 1
[    2.790000] pci 0000:00:11.0: fixup irq: got 40
[    2.790000] pci 0000:00:11.0: assigning IRQ 40
[    2.790000] pci 0000:00:12.0: using irq 41 for pin 1
[    2.790000] pci 0000:00:12.0: fixup irq: got 41
[    2.790000] pci 0000:00:12.0: assigning IRQ 41
[    2.800000] Switched to clocksource MIPS
[    2.800000] NET: Registered protocol family 2
[    2.810000] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[    2.820000] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[    2.820000] TCP: Hash tables configured (established 1024 bind 1024)
[    2.830000] TCP: reno registered
[    2.830000] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    2.840000] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    2.840000] NET: Registered protocol family 1
[    2.850000] PCI: CLS 0 bytes, default 32
[    2.850000] futex hash table entries: 256 (order: -1, 3072 bytes)
[    2.870000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    2.880000] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    2.890000] msgmni has been set to 55
[    2.890000] io scheduler noop registered
[    2.900000] io scheduler deadline registered (default)
[    2.900000] Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled
[    2.930000] serial8250.0: ttyS0 at MMIO 0x18020000 (irq = 11, base_baud = 10625000) is a 16550A
[    2.940000] console [ttyS0] enabled
[    2.950000] bootconsole [early0] disabled
[    2.960000] m25p80 spi0.0: found m25p64, expected m25p80
[    2.960000] m25p80 spi0.0: m25p64 (8192 Kbytes)
[    2.970000] Creating 9 MTD partitions on "spi0.0":
[    2.970000] 0x000000000000-0x000000030000 : "uboot"
[    2.980000] 0x000000030000-0x000000040000 : "env"
[    2.990000] 0x000000040000-0x0000001b0000 : "linux"
[    2.990000] 0x0000001b0000-0x0000007b0000 : "rootfs"
[    3.000000] mtd: device 3 (rootfs) set to be root filesystem
[    3.010000] 1 squashfs-split partitions found on MTD device rootfs
[    3.010000] 0x000000420000-0x0000007b0000 : "rootfs_data"
[    3.020000] 0x0000007b0000-0x0000007c0000 : "nvram"
[    3.030000] 0x0000007c0000-0x0000007d0000 : "factory"
[    3.030000] 0x0000007d0000-0x0000007f0000 : "language"
[    3.040000] 0x0000007f0000-0x000000800000 : "caldata"
[    3.050000] 0x000000040000-0x0000007b0000 : "firmware"
[    3.090000] switch0: Atheros AR8236 rev. 1 switch registered on ag71xx-mdio.0
[    3.110000] libphy: ag71xx_mdio: probed
[    3.430000] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode:RMII
[    3.750000] ag71xx ag71xx.1: connected to PHY at ag71xx-mdio.0:04 [uid=004dd043, driver=Atheros AR8216/AR8236/AR8316]
[    3.760000] eth1: Atheros AG71xx at 0xba000000, irq 5, mode:RMII
[    3.770000] TCP: cubic registered
[    3.770000] NET: Registered protocol family 17
[    3.780000] 8021q: 802.1Q VLAN Support v1.8
[    3.790000] VFS: Mounted root (squashfs filesystem) readonly on device 31:3.
[    3.790000] Freeing unused kernel memory: 204K (8035d000 - 80390000)
[    6.180000] ar71xx: pll_reg 0xb8050010: 0x1099
[    6.180000] eth0: link up (100Mbps/Full duplex)
[    6.220000] random: mktemp urandom read with 42 bits of entropy available
[    9.440000] jffs2: notice: (374) jffs2_build_xattr_subsystem: complete building xattr subsystem, 3 of xdatum (0 unchecked, 2 orphan) and 117 of xref (0 dead, 102 orp
han) found.
[    9.480000] eth0: link down
[   11.830000] Loading modules backported from Linux version master-2014-11-04-0-gf3660a2
[   11.840000] Backport generated by backports.git backports-20141023-2-g4ff890b
[   11.860000] nf_conntrack version 0.5.0 (449 buckets, 1796 max)
[   11.900000] xt_time: kernel timezone is -0000
[   11.930000] cfg80211: Calling CRDA to update world regulatory domain
[   11.930000] cfg80211: World regulatory domain updated:
[   11.940000] cfg80211:  DFS Master region: unset
[   11.940000] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[   11.950000] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   11.960000] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   11.970000] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[   11.980000] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[   11.980000] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[   11.990000] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[   12.000000] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[   12.010000] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[   12.020000] ip_tables: (C) 2000-2006 Netfilter Core Team
[   12.120000] PCI: Enabling device 0000:00:11.0 (0000 -> 0002)
[   12.130000] ath9k 0000:00:11.0: enabling bus mastering
[   12.130000] ath: EEPROM regdomain: 0x13
[   12.130000] ath: EEPROM indicates we should expect a direct regpair map
[   12.130000] ath: Country alpha2 being used: 00
[   12.130000] ath: Regpair used: 0x13
[   12.140000] Data bus error, epc == 80cc16b8, ra == 80cc16b4
[   12.140000] Oops[#1]:
[   12.140000] CPU: 0 PID: 545 Comm: kmodloader Not tainted 3.14.26 #1
[   12.140000] task: 81992640 ti: 81b46000 task.ti: 81b46000
[   12.140000] $ 0   : 00000000 0000006e deadc0de 80cc1580
[   12.140000] $ 4   : b0008048 b0000000 02000020 00000000
[   12.140000] $ 8   : ffffffff 00000000 ffffffff 0000000c
[   12.140000] $12   : 00000001 ffffff80 00000000 8034207c
[   12.140000] $16   : ffffffff 00008048 80c396c0 02000020
[   12.140000] $20   : 0000016d 00000002 00000000 00007894
[   12.140000] $24   : 00000001 00000000
[   12.140000] $28   : 81b46000 81b479c8 ffbfffff 80cc16b4
[   12.140000] Hi    : 00000000
[   12.140000] Lo    : 19d60000
[   12.140000] epc   : 80cc16b8 ath_start_rfkill_poll+0x250/0x37c [ath9k]
[   12.140000]     Not tainted
[   12.140000] ra    : 80cc16b4 ath_start_rfkill_poll+0x24c/0x37c [ath9k]
[   12.140000] Status: 1000f403 KERNEL EXL IE
[   12.140000] Cause : 1080001c
[   12.140000] PrId  : 00019374 (MIPS 24Kc)
[   12.140000] Modules linked in: ath9k(+) ath9k_common iptable_nat ath9k_hw ath nf_nat_ipv4 nf_conntrack_ipv4 mac80211 iptable_raw iptable_mangle iptable_filter ipt_RE
JECT ipt_MASQUERADE ip_tables cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG
 xt_CT x_tables nf_nat_irc nf_nat_ftp nf_nat nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack_irc nf_conntrack_ftp nf_conntrack crc_ccitt compat arc4 crypto_blkcipher g
pio_button_hotplug
[   12.140000] Process kmodloader (pid: 545, threadinfo=81b46000, task=81992640, tls=774f5440)
[   12.140000] Stack : 0000000c 81b47aa8 818a2010 818a2010 00000004 818a2010 00000004 818a22ec
          00000002 80d8d1b8 00001708 00000000 81b47a50 818a22ec 000002c7 00000000
          818a2010 818a22ec 818a2030 00000000 00001708 00000000 00000001 00010000
          00000000 80d86790 00010000 00000002 00000000 0000000a 09b409b4 09b40002
          0002221c 1a08f4ac 0000000c 085fa1af 00000000 00b93eee 20000000 80cf358e
          ...
[   12.140000] Call Trace:
[   12.140000] [<80cc16b8>] ath_start_rfkill_poll+0x250/0x37c [ath9k]
[   12.140000] [<80cc16b4>] ath_start_rfkill_poll+0x24c/0x37c [ath9k]

[   12.140000]
Code: 0c05d728  00852021  8e45088c <00501024> 00538025  02002021  0c05d86d  00b12821  8fbf0024
[   12.350000] ---[ end trace e8d5588716071238 ]---
[   18.660000] ar71xx: pll_reg 0xb8050010: 0x1099
[   18.660000] eth0: link up (100Mbps/Full duplex)
[   18.670000] device eth0.1 entered promiscuous mode
[   18.670000] device eth0 entered promiscuous mode
[   18.700000] br-lan: port 1(eth0.1) entered forwarding state
[   18.700000] br-lan: port 1(eth0.1) entered forwarding state
[   20.700000] br-lan: port 1(eth0.1) entered forwarding state
[   34.160000] random: nonblocking pool is initialized}}}

comment:8 Changed 3 years ago by cmtsij

base on r43793, I cherry-pick https://github.com/cmtsij/openwrt/commit/b6abe3a,
The kernel log changed:

[   11.820000] Loading modules backported from Linux version master-2014-11-04-0-gf3660a2
[   11.830000] Backport generated by backports.git backports-20141023-2-g4ff890b
[   11.850000] nf_conntrack version 0.5.0 (449 buckets, 1796 max)
[   11.890000] xt_time: kernel timezone is -0000
[   11.920000] cfg80211: Calling CRDA to update world regulatory domain
[   11.920000] cfg80211: World regulatory domain updated:
[   11.930000] cfg80211:  DFS Master region: unset
[   11.930000] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[   11.940000] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   11.950000] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   11.960000] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[   11.970000] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[   11.970000] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[   11.980000] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[   11.990000] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[   12.000000] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[   12.010000] ip_tables: (C) 2000-2006 Netfilter Core Team
[   12.110000] PCI: Enabling device 0000:00:11.0 (0000 -> 0002)
[   12.130000] Data bus error, epc == 80d8ee70, ra == 80d8ee68
[   12.130000] Oops[#1]:
[   12.130000] CPU: 0 PID: 545 Comm: kmodloader Not tainted 3.14.26 #3
[   12.130000] task: 81870e58 ti: 81b54000 task.ti: 81b54000
[   12.130000] $ 0   : 00000000 0000006e deadc0de 80de1580
[   12.130000] $ 4   : b0009808 08000000 00007834 00010000
[   12.130000] $ 8   : 00000000 81b559c8 0000783c 00000000
[   12.130000] $12   : 00007820 ffffff80 00000000 00000000
[   12.130000] $16   : 818a2010 81b559c8 81b559c8 00000001
[   12.130000] $20   : 00000001 80de1580 00000001 00000000
[   12.130000] $24   : 00000000 80de167c
[   12.130000] $28   : 81b54000 81b55980 00000000 80d8ee68
[   12.130000] Hi    : 00000001
[   12.130000] Lo    : 025c0000
[   12.130000] epc   : 80d8ee70 ar5008_hw_attach_phy_ops+0x149c/0x2570 [ath9k_hw]
[   12.130000]     Not tainted
[   12.130000] ra    : 80d8ee68 ar5008_hw_attach_phy_ops+0x1494/0x2570 [ath9k_hw]
[   12.130000] Status: 1000f403 KERNEL EXL IE
[   12.130000] Cause : 1080001c
[   12.130000] PrId  : 00019374 (MIPS 24Kc)
[   12.130000] Modules linked in: ath9k(+) ath9k_common iptable_nat ath9k_hw ath nf_nat_ipv4 nf_conntrack_ipv4 mac80211 iptable_raw iptable_mangle iptable_filter ipt_RE
JECT ipt_MASQUERADE ip_tables cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG
 xt_CT x_tables nf_nat_irc nf_nat_ftp nf_nat nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack_irc nf_conntrack_ftp nf_conntrack crc_ccitt compat arc4 crypto_blkcipher g
pio_button_hotplug
[   12.130000] Process kmodloader (pid: 545, threadinfo=81b54000, task=81870e58, tls=77620440)
[   12.130000] Stack : 00000000 00000000 00000000 00000000 0000786c 0094128d 00007854 00000800
          00007820 f75ff6fc 00007824 00040000 00007868 0501e200 0000783c 54214514
          00007838 0e4548d8 818a2010 818a2030 818a22ec 00000001 00009860 80de1580
          00000001 80d8fd20 00000180 00000040 00000008 80d84d90 000186a0 80d9e524
          00000020 00000000 818a2010 818a22ec 818a2030 00000000 00023f60 81800964
          ...
[   12.130000] Call Trace:
[   12.130000] [<80d8ee70>] ar5008_hw_attach_phy_ops+0x149c/0x2570 [ath9k_hw]
[   12.130000]
[   12.130000]
Code: 34059808  8e030008  3c050800 <00452825> 02002021  0060f809  34069808  8e020014  02002021
[   12.340000] ---[ end trace dc2562f20033f737 ]---

AND after patching https://github.com/cmtsij/openwrt/commit/bf2e98ae,
no more error kernel log.

I would help to reproduce and collect logs if you need.
Thanks

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