Module Name: src
Committed By: martin
Date: Sun May 5 08:49:19 UTC 2019
Modified Files:
src/sys/arch/amd64/amd64 [netbsd-7-0]: copy.S
src/sys/arch/i386/i386 [netbsd-7-0]: copy.S
Log Message:
Pull up following revision(s) (requested by maxv in ticket #1693):
sys/arch/amd64/amd64/copy.S: revision 1.33
sys/arch/i386/i386/copy.S: revision 1.31
Hum. Fix a potentially catastrophic bug: kcopy() sets DF=1 if the areas
overlap, but doesn't clear it if the copy faults. If this happens, we
return to the caller with DF=1, and each future memory copy will be
backwards.
I wonder if there really are places where kcopy() is called with
overlapping areas.
To generate a diff of this commit:
cvs rdiff -u -r1.18.38.1 -r1.18.38.2 src/sys/arch/amd64/amd64/copy.S
cvs rdiff -u -r1.23 -r1.23.8.1 src/sys/arch/i386/i386/copy.S
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
