Module Name: src
Committed By: maxv
Date: Sat May 4 08:50:39 UTC 2019
Modified Files:
src/sys/arch/amd64/amd64: copy.S
src/sys/arch/i386/i386: copy.S
Log Message:
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 -r1.32 -r1.33 src/sys/arch/amd64/amd64/copy.S
cvs rdiff -u -r1.30 -r1.31 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.
