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

["Andrew Doran" <ad%netbsd.org@localhost>]

Module Name:    src
Committed By:   ad
Date:           Fri May 15 22:22:06 UTC 2020

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

Log Message:
Reported-by: syzbot+0f38e4aed17c14cf0af8%syzkaller.appspotmail.com@localhost
Reported-by: syzbot+c1770938bb3fa7c085f2%syzkaller.appspotmail.com@localhost
Reported-by: syzbot+92ca248f1137c4b345d7%syzkaller.appspotmail.com@localhost
Reported-by: syzbot+acfd688740461f7edf2f%syzkaller.appspotmail.com@localhost

Be careful with pmap_lock in pmap_update().  It can happen that pmap_kernel
has work pending that gets noticed in interrupt context, before process
context has a chance to deal with it.


To generate a diff of this commit:
cvs rdiff -u -r1.390 -r1.391 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.