On Wed, 16 Feb 2000, Manfred Spraul wrote:
>
> Alan Cox wrote:
> >
> > > Ok, but now the question is: which interrupt changes current->state? Perhaps
> > > a special boobytrap in the interrupt handlers could detect that?
> >
> > Numerous interrupt handlers change task->state. Every interrupt handler that
> > does a wake_up_interruptible() for example. It could easily be 'current'
> >
> I've written such a bobbytrap, it's attached. I'm using it right now,
> but as I've expected, I receive no messages. Either a specific hardware
> driver calls "__set_current_state()/ set_current_state()/
> current->state==NULL", or my theory is wrong.
>
> Andris, could you apply my patch, and check if it reports any messages?
>
> --
> Manfred
Applied patch, built kernel and got error messages
'do_IRQ: bad state change in bh'
in average once per minute in first about 10 minutes minutes uptime:
Andris
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