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RE: [PATCH] ath10k: Remove ATH10K_STATE_RESTARTED in simulate fw crash

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> >
> > > > 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.
> > >
> > If firmware is recovering from crash, then simulate a new crash will trigger
> error.
> > So remove it.
> 
> That's actually a feature, not a bug. If firmware crashes while driver is
> restarting after a crash then its likely going to fail again and again causing a
> crash-restart loop which can affect system performance and responsiveness.
> It's better to give up and let the system admin take over.
> 
> If it's still bothering you then please consider a crash counter threshold so
> that, e.g. after 5 crash-while-restarting it's going to give up. However I doubt
> it's worth the effort. My experience tells me firmware crashes during
> recovery are rarely, if at all, transient.
> 
> The simulated fw crash is not representative here. It's a mere tool to test
> driver code.

The simulated fw crash is only a tool for user to trigger fw crash with command,
This change's purpose is to disallow user to trigger fw crash if the fw is not in a
Normal state.

If the fw is in recovering state triggered by user's command or by fw, then it will
disallow user to run command to trigger fw crash again until fw become to a normal
State.

> 
> 
> Michał




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