Re: interrupt context

[Jeremy Hall <jhall@maoz.com>]

With the tasklet version, I now have a different problem and don't fully 
understand how we got here.

Both CPUs are in snd_pcm_stop, which is a macro.  gdb has a hard time with 
this and can't reference some of the preprocessor code.

snd_pcm_stop is running for the same card but on different CPUs.  How'd 
that happen? I thought the tasklet wouldn't run ... oh but it only blocks 
itself from running on the local CPU twice

nice

Do I need to use spin_lock_irqsave or spin_lock to protect itself from 
running concurrently on different CPUs?

_J

In the new year, Robert Love wrote:
> On Mon, 2003-04-14 at 23:44, Jeremy Hall wrote:
> 
> > My quandery is where to put the lock so that both cards will use it.  I 
> > need a layer that is visible to both and don't fully understand the alsa 
> > architecture enough to know where to put it.
> 
> OK, I understand you now. :)
> 
> What is the relationship between the two things that are conflicting?
> 
> 	Robert Love
> 

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