Subject: Re: pmap l1pt allocation strategy
To: None <>
From: David Laight <>
List: port-arm
Date: 11/28/2002 09:37:26
> I noted that the l1pt allocatioln strategy is:
> 1. try the static list
> 2. try if we have a free dynamically allocated one on the free list
> 3. if this fails, try to allocate one.

1 and 2 do look to be in the wrong order...

Strikes me that it ought to be possible to change the physical
page underlying a virtual page in order to get the contiguous
physical memory required.

Actually aren't there likely to be some user pages that can be
discarded in order to satisfy the request?
Or has every user page been swapped out when this error occurs?


David Laight: