CVSROOT: /cvs
Module name: src
Changes by: kette...@cvs.openbsd.org 2015/07/10 05:52:59
Modified files:
sys/arch/i386/i386: pmapae.c
Log message:
Don't call pool_put(9) while holding a mutex. Instead collect pv entries in
a list and put them back into the pool after releasing the mutex. This
prevents a lock ordering problem between the per-pmap mutexes and the kernel
lock that arises because pool_put(9) may grab the kernel lock when it decides
to free a pool page.
This seems to make the i386 pmap mpsafe enough to run the reaper without
holding the kernel lock.
ok sthen@ (who helped me a lot debugging this)
