force rewrite when SG_IO: bad sense error

hdd/fix_disk.sh

@@ -34,9 +34,21 @@ fix_block()
 {
     local DEV=$1
     local block=$2
+    local force="$FORCE"
     # FIXME: possible badblocks always returns true
 #    badblocks -b 512 -v -s $DEV $block $block && { echo "Already OK, skipped..." ; [ -z "$FORCE" ] && return ; }
-    test_block $DEV $block && { echo "Already OK, skipped..." ; [ -z "$FORCE" ] && return ; }
+    if test_block $DEV $block >/tmp/test_block.out 2>&1 ; then
+        if grep "SG_IO: bad/missing sense data" /tmp/test_block.out ; then
+            force=1
+        fi
+        if [ -n "$force" ] ; then
+            echo "Force rewrite ..."
+        else
+            echo "Already OK, skipped ..."
+            return
+        fi
+    fi
+
     if [ -z "$TESTONLY" ] ; then
         echo "Test only"
         return