CVSROOT: /cvs
Module name: src
Changes by: st...@cvs.openbsd.org 2021/06/20 04:58:36
Modified files:
sys/arch/i386/i386: trap.c
Log message:
Reinstate locks around uvm_fault calls from upageflttrap and kpageflttrap
on i386. This is a backout of revision 1.152.
Kernel crash with messages printed concurrently from multiple CPUs
occasionally seen during ports build:
"WARNING: SPL NOT LOWERED ON TRAP EXIT"
and these panics
ddb{1}> sh panic
cpu1: uvm_fault(0xd470a0a0, 0xcf9b7000, 0, 1) -> e
cpu3: kernel diagnostic assertion "!_kernel_lock_held()" failed: file
"/usr/src/sys/uvm/uvm_map.c", line 2707
