kern/118093: firewire bus reset hogs CPU, causing data to be lost

[Sean Bruno]

Dieter wrote:
> I found the source of this problem.  When a firewire bus resets,
> the firewire driver prints a few lines to the console,
> using printf(9) and device_printf(9).  I suspect that these are
> running at splfw aka splimp, locking out other i/o.
>
> Commenting out the *printf() calls fixes the problem, but that
> isn't a good solution.
>
> Would changing the *printf() calls to log(9) calls be safe?
> ("safe" meaning other i/o doesn't get locked out)
>
> Ah, for the good old days when 19200 baud seemed fast...
> _______________________________________________
>   
Which one are you looking at Dieter?

Sean