RE: ia64 get_mmu_context patch

From: Chen, Kenneth W <kenneth.w.chen_at_intel.com>
Date: 2005-10-29 03:59:03
Peter Keilty wrote on Friday, October 28, 2005 7:50 AM
> > This printk is spurious.  When I first read it, my reaction 
> > is: rid as in region register is architecturally defined at 
> > maximum 24 bits.  Printing 21-bit for rid is misleading.  We 
> > currently use 8 rid number per process.
> > So 21 bit for context number is the max.  max_ctx will never 
> > exceed 1<<21.
> > Suggest this printk to be dropped.
> 
> I add that per mail with Tony, He suggested that we might limit
> the bitmap size so that if the rid size was increase in future
> hardware that a Giga byte Would not be allocated. The printk was
> to let people know that the rid was being limited to 2^21 if the
> rid was enlarged.

If I were you, I would try to convince Tony with the argument I
presented in my earlier post :-)

- Ken

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Received on Sat Oct 29 04:00:27 2005

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