[SOLVED] Wireless network crashes

Use**ame · 2019-09-21 02:44:05

Hello!

The wireless network drops several times a day, it is very annoying.

uname -r

5.3.0-arch1-1-ARCH

lspci -v

03:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01)
	Subsystem: AzureWave AR9485 Wireless Network Adapter
	Flags: bus master, fast devsel, latency 0, IRQ 17
	Memory at f7900000 (64-bit, non-prefetchable) [size=512K]
	Expansion ROM at f7980000 [disabled] [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: ath9k
	Kernel modules: ath9k

The following messages appear in dmesg:

[45597.912340] ath: phy0: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02000020 DMADBG_7=0x0000a400
[46158.199708] ath: phy0: DMA failed to stop in 10 ms AR_CR=0x00000028 AR_DIAG_SW=0x02000020 DMADBG_7=0x0000a400
[51117.231704] ath: phy0: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02000020 DMADBG_7=0x0000a400

To restore the network, I need to restart nm-applet.

I am really tired of the fall of the wireless network and would like to know. A search on such topics did not return results, because these topics are either very old, or they do not have answers to this question.
Tell me if you need more information.

Any thoughts on this?

Last edited by Use**ame (2019-12-23 07:22:10)

jasonwryan · 2019-09-21 03:14:44

Paste the output of `systemctl list-unit-files --state=enabled`.

Use**ame · 2019-09-21 03:19:21

jasonwryan,

UNIT FILE                                  STATE  
autovt@.service                            enabled
bumblebeed.service                         enabled
dbus-org.freedesktop.nm-dispatcher.service enabled
getty@.service                             enabled
NetworkManager-dispatcher.service          enabled
NetworkManager-wait-online.service         enabled
NetworkManager.service                     enabled
systemd-swap.service                       enabled
remote-fs.target                           enabled
reflector.timer                            enabled

10 unit files listed.

jasonwryan · 2019-09-21 03:30:08

That looks OK.

Paste the output of `systemctl status NetworkManager.service` and `journalctl _PID=XXX` (where the PID is from the output of systemctl) immediately after networking goes down.

Use**ame · 2019-12-23 07:23:02

The problem resolved by itself and did not appear again. Thanks.

Arch Linux

#1 2019-09-21 02:44:05

[SOLVED] Wireless network crashes

#2 2019-09-21 03:14:44

Re: [SOLVED] Wireless network crashes

#3 2019-09-21 03:19:21

Re: [SOLVED] Wireless network crashes

#4 2019-09-21 03:30:08

Re: [SOLVED] Wireless network crashes

#5 2019-12-23 07:23:02

Re: [SOLVED] Wireless network crashes

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