diff --git a/addrcheck/ac_main.c b/addrcheck/ac_main.c
index 3063b1a..ac38e9b 100644
--- a/addrcheck/ac_main.c
+++ b/addrcheck/ac_main.c
@@ -1304,8 +1304,7 @@
 static
 void addrcheck_new_mem_startup( Addr a, UInt len, Bool rr, Bool ww, Bool xx )
 {
-   // JJJ: this ignores the permissions and just makes it readable, like the
-   // old code did, AFAICT
+   /* Ignore the permissions, just make it readable.  Seems to work... */
    DEBUG("new_mem_startup(%p, %u, rr=%u, ww=%u, xx=%u)\n", a,len,rr,ww,xx);
    SK_(make_accessible)(a, len);
 }
diff --git a/helgrind/hg_main.c b/helgrind/hg_main.c
index f824be9..68276e1 100644
--- a/helgrind/hg_main.c
+++ b/helgrind/hg_main.c
@@ -778,8 +778,7 @@
 static
 void eraser_new_mem_startup( Addr a, UInt len, Bool rr, Bool ww, Bool xx )
 {
-   // JJJ: this ignores the permissions and just makes it readable, like the
-   // old code did, AFAICT
+   /* Ignore the permissions, just make it readable.  Seems to work... */
    make_segment_readable(a, len);
 }
 
diff --git a/memcheck/mc_main.c b/memcheck/mc_main.c
index c6ddc14..2e8f712 100644
--- a/memcheck/mc_main.c
+++ b/memcheck/mc_main.c
@@ -873,8 +873,7 @@
 static
 void memcheck_new_mem_startup( Addr a, UInt len, Bool rr, Bool ww, Bool xx )
 {
-   // JJJ: this ignores the permissions and just makes it readable, like the
-   // old code did, AFAICT
+   /* Ignore the permissions, just make it readable.  Seems to work... */
    DEBUG("new_mem_startup(%p, %u, rr=%u, ww=%u, xx=%u)\n", a,len,rr,ww,xx);
    SK_(make_readable)(a, len);
 }