:> Hmm. Ok, I think you are right. APTDpde is what is being loaded
:> and that points into the user page table directory page, which is
:> per-process. So APTDpde should be per-process.
:
:But it is! (sort-of) APTDpde was per-process but is now per-address-space
:with the advent of fork and RFMEM sharing (and KSE).
:
:When we context switch, PTD goes with the process^H^H^H^Haddress space, and
:APTD is merely mapped by the last entry in the per-process PTD
:(PTD[APTDPDTI] if memory serves correctly).
:
:Cheers,
:-Peter
:--
:Peter Wemm - [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Oh !@#$#@$.. you're right! That means there *IS* a race, just that it
is a race in the case where you use rfork. APTDpde can be ripped out
from under one thread by another thread.
-Matt
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