On Wed, 14 Nov 2018 at 03:51, Wen Gong <[email protected]> wrote:
>
> When test simulate firmware crash, it is easy to trigger error.
> command:
> echo soft > /sys/kernel/debug/ieee80211/phyxx/ath10k/simulate_fw_crash.
>
> If input more than two times continuously, then it will have error.
> Error message:
> ath10k_pci 0000:02:00.0: failed to set vdev 1 RX wake policy: -108
> ath10k_pci 0000:02:00.0: device is wedged, will not restart
>
> It is because the state has not changed to ATH10K_STATE_ON immediately,
> then it will have more than two simulate crash process running meanwhile,
> and complete/wakeup some field twice, it destroy the normal recovery
> process.

This was intended to allow testing not only firmware crash path (and
recovery) but also firmware crash while recovering from a firmware
crash.


Michał

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