Bug#891060: Atheros AR9271 ath9k_htc USB WiFi connected but IP traffic stops
Package: src:linux
Version: 4.15.4-1
Severity: normal
Dear Maintainer,
starting with 4.14.17-1 and also seen on 4.15.4-1, my USB Wifi adapter remains
connected to my WPA2/CCMP access point but, after some time, minutes to hours,
all IP traffic stops (or at least I see no responses). IP traffic remains
stopped until the ath9k_htc module is unloaded and reloaded or the adapter is
unplugged and replugged. Operation can be restored with "modprobe -r ath9k_htc;
modprobe ath9k_htc".
This failure was not seen on 4.14.13-1.
Configuration:
- TP-Link TL-WN722N adapter
- Atheros AR9271 chipset
- USB ID: 0cf3:9271
- Module: ath9k_htc
- firmware-atheros (20170823-1) (firmware ath9k_htc/htc_9271-1.4.0.fw)
When IP traffic stops, no web pages load, "dig google.com" fails, and I cannot
ping any WLAN hosts including the router:
$ ping -c 1 router
PING router (192.168.1.254) 56(84) bytes of data.
>From ripley (192.168.1.1) icmp_seq=1 Destination Host Unreachable
--- router ping statistics ---
1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms
When IP traffic is stopped, "route" output is normal.
The adapter is still responding:
- NetworkManager applet shows connection with full details
- "iw dev wlan0 link" shows still connected and byte and packet counters keep
increasing
- "iw dev wlan0 station dump" shows byte and packet counters that keep
increasing
# iw dev wlan0 link
Connected to XX:XX:XX:XX:XX (on wlan0)
SSID: XXXXXXXX
freq: 2412
RX: 15588967 bytes (64499 packets)
TX: 811882 bytes (6877 packets)
signal: -75 dBm
tx bitrate: 72.2 MBit/s MCS 7 short GI
bss flags: short-slot-time
dtim period: 1
beacon int: 100
# iw dev wlan0 station dump
Station XX:XX:XX:XX:XX:XX (on wlan0)
inactive time: 320 ms
rx bytes: 15726309
rx packets: 65777
tx bytes: 819051
tx packets: 6967
tx retries: 0
tx failed: 9
beacon loss: 0
beacon rx: 27523
rx drop misc: 30
signal: -74 [-79] dBm
signal avg: -74 [-78] dBm
beacon signal avg: 182 dBm
tx bitrate: 72.2 MBit/s MCS 7 short GI
rx bitrate: 1.0 MBit/s
authorized: yes
authenticated: yes
associated: yes
preamble: long
WMM/WME: yes
MFP: no
TDLS peer: no
DTIM period: 1
beacon interval:100
short slot time:yes
(I am using net.ifnames=0 hence wlan0.)
Investigation:
- Testing a different modem of the exact same model does not fix so it is
unlikely to be a hardware failure
- ath9k_htc nohwcrypt=1 does not fix
- Switching to firmware-ath9k-htc (1.4.0-97-g75b3e59+dfsg-1) (firmware
ath9k_htc/htc_9271-1.dev.0.fw) does not fix
- NetworkManager debug logging had no output at the time of the hang: dbus-send
--system --print-reply --dest=org.freedesktop.NetworkManager
/org/freedesktop/NetworkManager org.freedesktop.NetworkManager.SetLogging
string:"debug" string:""
- Dropping iptables has no effect.
- linux-image-4.14.0-3-amd64 (4.14.13-1) not affected (or at least not yet
seen)
- linux-image-4.14.0-3-amd64 (4.14.17-1) AFFECTED
- linux-image-4.15.0-1-amd64 (4.15.4-1) AFFECTED
- pti=off has no effect
I have downgraded to 4.14.13-1, but booted into an affected kernel for the
purpose of this report. I needed to reload the ath9k_htc module twice while
submitting this report!
Kind regards,
Ben.
-- Package-specific info:
** Version:
Linux version 4.15.0-1-amd64 (debian-kernel@lists.debian.org) (gcc version 7.3.0 (Debian 7.3.0-3)) #1 SMP Debian 4.15.4-1 (2018-02-18)
** Command line:
BOOT_IMAGE=/vmlinuz-4.15.0-1-amd64 root=/dev/mapper/vg-root ro quiet net.ifnames=0 apparmor=0 splash
** Tainted: W (512)
* Taint on warning.
** Kernel log:
Unable to read kernel log; any relevant messages should be attached
** Model information
sys_vendor: System manufacturer
product_name: System Product Name
product_version: System Version
chassis_vendor: Default string
chassis_version: Default string
bios_vendor: American Megatrends Inc.
bios_version: 3601
board_vendor: ASUSTeK COMPUTER INC.
board_name: H110I-PLUS
board_version: Rev X.0x
** Loaded modules:
ath9k_htc
ath9k_common
ath9k_hw
ath
mac80211
cfg80211
ctr
ccm
arc4
ip6t_REJECT
nf_reject_ipv6
nf_conntrack_ipv6
nf_defrag_ipv6
ip6table_filter
ip6_tables
ipt_REJECT
nf_reject_ipv4
xt_tcpudp
nf_conntrack_ipv4
nf_defrag_ipv4
xt_conntrack
nf_conntrack
iptable_filter
snd_hda_codec_hdmi
binfmt_misc
snd_hda_codec_realtek
snd_hda_codec_generic
nls_ascii
nls_cp437
vfat
fat
intel_rapl
x86_pkg_temp_thermal
intel_powerclamp
coretemp
snd_hda_intel
kvm_intel
snd_hda_codec
kvm
irqbypass
intel_cstate
snd_hda_core
eeepc_wmi
snd_hwdep
efi_pstore
intel_uncore
asus_wmi
sparse_keymap
joydev
intel_rapl_perf
efivars
snd_pcm
rfkill
wmi_bmof
snd_timer
sg
mei_me
pcspkr
iTCO_wdt
snd
iTCO_vendor_support
mei
soundcore
shpchp
evdev
acpi_pad
parport_pc
ppdev
lp
parport
efivarfs
ip_tables
x_tables
autofs4
ext4
crc16
mbcache
jbd2
fscrypto
ecb
btrfs
zstd_decompress
zstd_compress
xxhash
algif_skcipher
af_alg
dm_crypt
dm_mod
hid_generic
usbhid
hid
raid10
raid456
async_raid6_recov
async_memcpy
async_pq
async_xor
async_tx
xor
raid6_pq
libcrc32c
crc32c_generic
raid1
raid0
multipath
linear
md_mod
sd_mod
crct10dif_pclmul
crc32_pclmul
crc32c_intel
ghash_clmulni_intel
mxm_wmi
pcbc
i915
aesni_intel
ahci
i2c_algo_bit
aes_x86_64
libahci
crypto_simd
glue_helper
xhci_pci
drm_kms_helper
cryptd
xhci_hcd
libata
r8169
i2c_i801
mii
usbcore
scsi_mod
drm
usb_common
fan
thermal
wmi
video
button
** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation Intel Kaby Lake Host Bridge [8086:591f] (rev 05)
Subsystem: ASUSTeK Computer Inc. Intel Kaby Lake Host Bridge [1043:8694]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>
00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 630 [8086:5912] (rev 04) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. HD Graphics 630 [1043:8694]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 123
Region 0: Memory at f6000000 (64-bit, non-prefetchable) [size=16M]
Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at f000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915
00:14.0 USB controller [0c03]: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller [8086:a12f] (rev 31) (prog-if 30 [XHCI])
Subsystem: ASUSTeK Computer Inc. Sunrise Point-H USB 3.0 xHCI Controller [1043:8694]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 120
Region 0: Memory at f7110000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci
00:16.0 Communication controller [0780]: Intel Corporation Sunrise Point-H CSME HECI #1 [8086:a13a] (rev 31)
Subsystem: ASUSTeK Computer Inc. Sunrise Point-H CSME HECI [1043:8694]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 124
Region 0: Memory at f712d000 (64-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: mei_me
Kernel modules: mei_me
00:17.0 SATA controller [0106]: Intel Corporation Sunrise Point-H SATA controller [AHCI mode] [8086:a102] (rev 31) (prog-if 01 [AHCI 1.0])
Subsystem: ASUSTeK Computer Inc. Sunrise Point-H SATA controller [AHCI mode] [1043:8694]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 121
Region 0: Memory at f7128000 (32-bit, non-prefetchable) [size=8K]
Region 1: Memory at f712c000 (32-bit, non-prefetchable) [size=256]
Region 2: I/O ports at f090 [size=8]
Region 3: I/O ports at f080 [size=4]
Region 4: I/O ports at f060 [size=32]
Region 5: Memory at f712b000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci
00:1c.0 PCI bridge [0604]: Intel Corporation Sunrise Point-H PCI Express Root Port #5 [8086:a114] (rev f1) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 00002000-00002fff
Memory behind bridge: c8000000-c81fffff
Prefetchable memory behind bridge: 00000000c8200000-00000000c83fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1d.0 PCI bridge [0604]: Intel Corporation Sunrise Point-H PCI Express Root Port #9 [8086:a118] (rev f1) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 00003000-00003fff
Memory behind bridge: c8400000-c85fffff
Prefetchable memory behind bridge: 00000000c8600000-00000000c87fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1d.1 PCI bridge [0604]: Intel Corporation Sunrise Point-H PCI Express Root Port #10 [8086:a119] (rev f1) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin B routed to IRQ 17
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: f7000000-f70fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1f.0 ISA bridge [0601]: Intel Corporation Sunrise Point-H LPC Controller [8086:a143] (rev 31)
Subsystem: ASUSTeK Computer Inc. Sunrise Point-H LPC Controller [1043:8694]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
00:1f.2 Memory controller [0580]: Intel Corporation Sunrise Point-H PMC [8086:a121] (rev 31)
Subsystem: ASUSTeK Computer Inc. Sunrise Point-H PMC [1043:8694]
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Region 0: Memory at f7124000 (32-bit, non-prefetchable) [disabled] [size=16K]
00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-H HD Audio [8086:a170] (rev 31)
Subsystem: ASUSTeK Computer Inc. Sunrise Point-H HD Audio [1043:86c7]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 125
Region 0: Memory at f7120000 (64-bit, non-prefetchable) [size=16K]
Region 4: Memory at f7100000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:1f.4 SMBus [0c05]: Intel Corporation Sunrise Point-H SMBus [8086:a123] (rev 31)
Subsystem: ASUSTeK Computer Inc. Sunrise Point-H SMBus [1043:8694]
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 16
Region 0: Memory at f712a000 (64-bit, non-prefetchable) [size=256]
Region 4: I/O ports at f040 [size=32]
Kernel driver in use: i801_smbus
Kernel modules: i2c_i801
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
Subsystem: ASUSTeK Computer Inc. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1043:8677]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 122
Region 0: I/O ports at e000 [size=256]
Region 2: Memory at f7004000 (64-bit, non-prefetchable) [size=4K]
Region 4: Memory at f7000000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169
Kernel modules: r8169
** USB devices:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n
Bus 001 Device 003: ID 046d:c534 Logitech, Inc. Unifying Receiver
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-- System Information:
Debian Release: buster/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.15.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8), LANGUAGE=en_GB:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages linux-image-4.15.0-1-amd64 depends on:
ii initramfs-tools [linux-initramfs-tool] 0.130
ii kmod 25-1
ii linux-base 4.5
Versions of packages linux-image-4.15.0-1-amd64 recommends:
ii apparmor 2.12-2
ii firmware-linux-free 3.4
ii irqbalance 1.3.0-0.1
Versions of packages linux-image-4.15.0-1-amd64 suggests:
pn debian-kernel-handbook <none>
ii extlinux 3:6.03+dfsg1-2
ii grub-efi-amd64 2.02+dfsg1-1
pn linux-doc-4.15 <none>
Versions of packages linux-image-4.15.0-1-amd64 is related to:
ii firmware-amd-graphics 20170823-1
ii firmware-atheros 20170823-1
pn firmware-bnx2 <none>
pn firmware-bnx2x <none>
ii firmware-brcm80211 20170823-1
pn firmware-cavium <none>
pn firmware-intel-sound <none>
pn firmware-intelwimax <none>
pn firmware-ipw2x00 <none>
pn firmware-ivtv <none>
pn firmware-iwlwifi <none>
pn firmware-libertas <none>
ii firmware-linux-nonfree 20170823-1
ii firmware-misc-nonfree 20170823-1
pn firmware-myricom <none>
pn firmware-netxen <none>
pn firmware-qlogic <none>
ii firmware-realtek 20170823-1
pn firmware-samsung <none>
pn firmware-siano <none>
pn firmware-ti-connectivity <none>
pn xen-hypervisor <none>
-- no debconf information
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