CVS commit: src/sys/arch/x86/x86

["Juergen Hannken-Illjes" <hannken%netbsd.org@localhost>]

Module Name:    src
Committed By:   hannken
Date:           Tue Jan 26 14:34:50 UTC 2016

Modified Files:
        src/sys/arch/x86/x86: pmap.c

Log Message:
Operation pmap_pp_clear_attrs() may remove the "used" attribute from a page
that is still cached in the TLB of other CPUs.

Call pmap_tlb_shootnow() here before enabling preemption to clear the
TLB entries on other CPUs.

Should prevent tmpfs data corruption under load.

Ok: Chuck Silvers


To generate a diff of this commit:
cvs rdiff -u -r1.189 -r1.190 src/sys/arch/x86/x86/pmap.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.