[src/netbsd-6]: src/doc Ticket #1464

[martin <martin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ecadf5eeff9b
branches:  netbsd-6
changeset: 777197:ecadf5eeff9b
user:      martin <martin%NetBSD.org@localhost>
date:      Tue Aug 08 12:01:20 2017 +0000

description:
Ticket #1464

diffstat:

 doc/CHANGES-6.2 |  17 ++++++++++++++++-
 1 files changed, 16 insertions(+), 1 deletions(-)

diffs (28 lines):

diff -r 36b116f024b7 -r ecadf5eeff9b doc/CHANGES-6.2
--- a/doc/CHANGES-6.2   Tue Aug 08 12:00:35 2017 +0000
+++ b/doc/CHANGES-6.2   Tue Aug 08 12:01:20 2017 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: CHANGES-6.2,v 1.1.2.293 2017/07/23 14:30:15 snj Exp $
+# $NetBSD: CHANGES-6.2,v 1.1.2.294 2017/08/08 12:01:20 martin Exp $
 
 A complete list of changes from the 6.1 release until the 6.2 release:
 
@@ -18032,3 +18032,18 @@
        observed on Fire V100 and mSATA-SSD with mSATA to IDE adapter.
        [nakayama, ticket #1463]
 
+sys/arch/i386/i386/trap.c:                     1.288           (patch)
+sys/arch/i386/i386/machdep.c:          1.783           (patch)
+sys/arch/i386/i386/locore.S:           1.146           (patch)
+sys/arch/amd64/amd64/locore.S:         1.122,1.124     (patch)
+sys/arch/amd64/amd64/machdep.c         1.254           (patch)
+sys/arch/amd64/amd64/trap.c:           1.95-1.96       (patch)
+
+       Remove the osyscall call gate and emulate it. There is a
+       one-instruction race in it that could panic the kernel.
+
+       Restore the ability to run netbsd 1.0 32-bit executables by
+       checking for the relevant lcall instruction in the trap handler
+       and treating it as a syscall.
+       [maxv, ticket #1464]
+