RTL8922AE: "timed out to flush queues" causes random WiFi disconnections on kernel 6.19

[Lanz86]

System Information

• Distro: Fedora 43
• Kernel: 6.19.9-200.fc43.x86_64
• WiFi Adapter: Realtek RTL8922AE 802.11be PCIe
• Driver: rtw89_8922ae (in-kernel)
• PCI ID: 07:00.0

Description

WiFi randomly stops exchanging data while remaining apparently connected.
The adapter shows as connected in NetworkManager but no traffic flows.
Only a driver reload or WiFi toggle restores connectivity.

Kernel errors at time of failure

rtw89_8922ae 0000:07:00.0: timed out to flush queues
rtw89_8922ae 0000:07:00.0: sec cam entry is empty
rtw89_8922ae 0000:07:00.0: [ERR]fw PC = 0x...
rtw89_8922ae 0000:07:00.0: SER catches error: 0x1001
rtw89_8922ae 0000:07:00.0: FW status = 0x8100

Steps to reproduce

1. Connect to WiFi normally
2. Use the connection for a variable amount of time (minutes to hours)
3. Traffic stops randomly, ping fails, but interface shows as connected

Current workarounds applied

• disable_aspm_l1=1 and disable_aspm_l1ss=1 via modprobe options
• wifi.powersave = 2 via NetworkManager config
• Power save disabled via iw set power_save off

None of the above prevent the issue.

Full dmesg output

[ 11.202233] rtw89_8922ae 0000:07:00.0: loaded firmware rtw89/rtw8922a_fw-4.bin
[ 11.202313] rtw89_8922ae 0000:07:00.0: enabling device (0000 -> 0003)
[ 11.210374] rtw89_8922ae 0000:07:00.0: Firmware version 0.35.80.3 (8ef4f0cf), cmd version 1, type 1
[ 11.210376] rtw89_8922ae 0000:07:00.0: Firmware version 0.35.80.3 (8ef4f0cf), cmd version 1, type 3
[ 11.232481] rtw89_8922ae 0000:07:00.0: chip rfe_type is 1
[ 11.234916] rtw89_8922ae 0000:07:00.0: Firmware version 0.1.0.0 (7b393818), cmd version 0, type 64
[ 11.234921] rtw89_8922ae 0000:07:00.0: Firmware element BB version: 00 49 00 00
[ 11.234927] rtw89_8922ae 0000:07:00.0: Firmware element radio A version: 00 33 00 00
[ 11.234933] rtw89_8922ae 0000:07:00.0: Firmware element NCTL version: 00 0f 00 00
[ 11.234963] rtw89_8922ae 0000:07:00.0: Firmware element TXPWR version: 00 46 00 00
[ 11.234965] rtw89_8922ae 0000:07:00.0: Firmware element TXPWR version: 00 46 00 00
[ 11.234966] rtw89_8922ae 0000:07:00.0: Firmware element TXPWR version: 00 46 00 00
[ 11.234972] rtw89_8922ae 0000:07:00.0: Firmware element PWR_TRK version: 00 33 00 00
[ 11.234979] rtw89_8922ae 0000:07:00.0: Firmware element REGD version: 00 49 00 08
[ 11.238215] rtw89_8922ae 0000:07:00.0: rfkill hardware state changed to enable
[ 11.257539] rtw89_8922ae 0000:07:00.0 wlp7s0: renamed from wlan0
[ 34.842921] rtw89_8922ae 0000:07:00.0: timed out to flush queues
[ 35.083994] rtw89_8922ae 0000:07:00.0: timed out to flush queues
[ 35.284857] rtw89_8922ae 0000:07:00.0: timed out to flush queues
[ 35.309240] rtw89_8922ae 0000:07:00.0: sec cam entry is empty
[ 339.172045] rtw89_8922ae 0000:07:00.0: sec cam entry is empty
[ 642.268178] rtw89_8922ae 0000:07:00.0: sec cam entry is empty
[ 756.278293] rtw89_8922ae 0000:07:00.0: timed out to flush queues
[ 756.485926] rtw89_8922ae 0000:07:00.0: timed out to flush queues
[ 756.693957] rtw89_8922ae 0000:07:00.0: timed out to flush queues
[ 768.995500] rtw89_8922ae 0000:07:00.0: timed out to flush queues
[ 769.224682] rtw89_8922ae 0000:07:00.0: timed out to flush queues
[ 769.429514] rtw89_8922ae 0000:07:00.0: timed out to flush queues
[ 1073.764789] rtw89_8922ae 0000:07:00.0: sec cam entry is empty

[a5a5aa555oo]

https://github.com/morrownr/rtw89 has the latest rtw89 driver and firmware, Could you test if they have the same problem?

[one-centavo]

@Lanz86 I've been experiencing this exact same issue with my RTL8852BE card. Just today, I managed to solve it by updating/replacing the firmware manually, and the problem seems to be gone now.
For those struggling with this, I recommend downloading the latest firmware .bin file directly from the official linux-firmware repository and replacing the one in /lib/firmware/rtw89/. In my case, after a quick reload of the rtw89_8852be module, the connection became stable and the "timed out to flush" errors disappeared.
Hope this helps!