Please forgive me my MIPS TLB ignorance.
It seems there is a TLB entry pointing to the userspace buffer at the
time the kernel pointer (kseg0) is used. Is is an allowed situation on
MIPS 24K?
buffer: len 0x1000 (first page),
userspace pointer 0x77327000,
kernel pointer 0x867ac000 (physical address = 0x067ac000)
TLB Index: 15 pgmask=4kb va=77326000 asid=be
[pa=01149000 c=3 d=1 v=1 g=0] [pa=067ac000 c=3 d=1 v=1 g=0]
Should the TLB entry be deleted before using the kernel pointer (which
points at the same page)?
--
Krzysztof Halasa
Research Institute for Automation and Measurements PIAP
Al. Jerozolimskie 202, 02-486 Warsaw, Poland
