ath10k: device stops working ("failed to install key for vdev" error in kernel log)

[Martin Blumenstingl]

> [54064.293597] ath10k_pci 0000:02:00.0: failed to install key for vdev
> 0 peer [AP MAC addr]: -145
> [54064.301234] wlan0: failed to remove key (1, ff:ff:ff:ff:ff:ff) from
> hardware (-145)
> [54067.305703] ath10k_pci 0000:02:00.0: failed to install key for vdev
> 0 peer [AP MAC addr]: -145
> [54067.313307] wlan0: failed to set key (1, ff:ff:ff:ff:ff:ff) to
> hardware (-145)
it just happened again:
...
[130266.948005] ath10k_pci 0000:02:00.0: failed to install key for
vdev 0 peer [AP MAC address]: -145
[130266.955697] wlan0: failed to remove key (2, ff:ff:ff:ff:ff:ff)
from hardware (-145)
[130269.964069] ath10k_pci 0000:02:00.0: failed to install key for
vdev 0 peer [AP MAC address]: -145
[130269.971775] wlan0: failed to set key (2, ff:ff:ff:ff:ff:ff) to
hardware (-145)
[172198.889700] ath10k_pci 0000:02:00.0: failed to send pdev bss chan
info request
[172201.897770] ath10k_pci 0000:02:00.0: failed to send pdev bss chan
info request

I tried to get more information from the firmware by looking at the
fw_* debugfs files:
# cat /sys/kernel/debug/ieee80211/phy0/ath10k/fw_reset_stats
fw_crash_counter                0
fw_warm_reset_counter           4
fw_cold_reset_counter           0
# cat /sys/kernel/debug/ieee80211/phy0/ath10k/fw_stats
cat: can't open '/sys/kernel/debug/ieee80211/phy0/ath10k/fw_stats':
Resource temporarily unavailable
# cat /sys/kernel/debug/ieee80211/phy0/ath10k/fw_crash_dump
cat: can't open
'/sys/kernel/debug/ieee80211/phy0/ath10k/fw_crash_dump': No data
available
# cat /sys/kernel/debug/ieee80211/phy0/ath10k/fw_dbglog
0x00000000 0
# cat /sys/kernel/debug/ieee80211/phy0/ath10k/fw_checksums
firmware-N.bin          9d340dd9
athwlan                 8d25deed
otp                     f3efeb4f
codeswap                00000000
board-N.bin             bebc7c08
board                   bebc7c08

This is still with firmware 10.2.4.70.54.
Please let me know if you need further information.


Regards,
Martin