Re: printk() with a spin-lock held.

[Lee Revell]

On Fri, 2004-10-22 at 22:27 -0700, Andrew Morton wrote:
> Lee Revell <rlrevell@xxxxxxxxxxx> wrote:
> >
> > On Fri, 2004-10-22 at 15:07 -0400, Richard B. Johnson wrote:
> > > Linux-2.6.9 will bug-check and halt if my code executes
> > > a printk() with a spin-lock held.
> > > 
> > > Is this the intended behavior?
> > 
> > Yes.  printk() can sleep.  No sleeping with a spinlock held.
> > 
> 
> printk() does not sleep and may be called from any context except
> 
> a) NMI handlers and
> 
> b) when holding a scheduler runqueue->lock while klogd is running.
> 

Oops, thinko.  Thanks.

Lee

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