Re: my simh-vax crashed: panic: pmap_enter on PG_SREF page

On 22/12/23 01:39, Anders Magnusson wrote:
> Den 2023-12-21 kl. 03:59, skrev Jason Thorpe:
>> That patch looks pretty reasonable, but wouldn’t it be better to invalidate the outgoing range?  Generally, best practice is to invalidate a TLB thing when it becomes invalid, rather than when it get a new value.
> This should be in rmspace(), where the previous process mappings are 
> removed.
> Together with a check for number of pages affected, so that it wont be 
> an giant TBIA loop :-)

I ended up revising my change to something that's almost exactly the 
same as Jason's patch from elsethread, though I also had an additional 
TBIS in pmap_enter() immediately after the call to rmpage().  Am I right 
to think that this last one isn't needed since there is a TBIA at the 
end of pmap_enter()?

thanks

kalvis