Hi,
I've noticed a somewhat rare behavior (<1% of the time) where bringing
an interface up fails after disabling power save. This is done by IWD
when a user-option is enabled, and follows an interface
removal/creation. The sequence is:
1. Remove default interface
2. Create new interface
3. Disable power save on new interface
4. Bring up new interface (rarely fails with -110).
iwd[1286641]: src/netdev.c:netdev_disable_ps_cb() Disabled power save
for ifindex 54
kernel: ath10k_pci 0000:02:00.0: wmi service ready event not received
iwd[1286641]: Error bringing interface 54 up: Connection timed out
kernel: ath10k_pci 0000:02:00.0: Could not init core: -110
I'm thinking maybe there is a race between creating the fresh interface
and disabling PS, then bringing the interface back up?
Setting PS after the interface is up (so far) seems to be 100% reliable
and have not yet seen this behavior. Regardless of any kernel fixes I'll
need to reorder the command sequence in IWD to support existing kernels,
but before I work around this issue I wanted to point it out so its not
hidden from view.
Thanks,
James
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