diff --git a/koch.nim b/koch.nim
index a9f5637fd4195..628c810989595 100644
--- a/koch.nim
+++ b/koch.nim
@@ -542,9 +542,7 @@ proc runCI(cmd: string) =
     #[
     BUG: with initOptParser, `--batch:'' all` interprets `all` as the argument of --batch
     ]#
-    # execFold("Run tester", "nim c -r -d:nimCoroutines testament/testament --pedantic --batch:$1 all -d:nimCoroutines" % ["NIM_TESTAMENT_BATCH".getEnv("_")])
-    execFold("Run tester", "nim c -r -d:nimCoroutines testament/testament --pedantic --batch:$1 pcat dll" % ["NIM_TESTAMENT_BATCH".getEnv("_")])
-    doAssert false, "PRTEMP"
+    execFold("Run tester", "nim c -r -d:nimCoroutines testament/testament --pedantic --batch:$1 all -d:nimCoroutines" % ["NIM_TESTAMENT_BATCH".getEnv("_")])
 
     block CT_FFI:
       when defined(posix): # windows can be handled in future PR's
diff --git a/lib/pure/reservedmem.nim b/lib/pure/reservedmem.nim
index 82d5898086797..469ca7efaa24e 100644
--- a/lib/pure/reservedmem.nim
+++ b/lib/pure/reservedmem.nim
@@ -92,8 +92,7 @@ else:
     memRead* = MemAccessFlags(PROT_READ)
     memReadWrite* = MemAccessFlags(PROT_READ or PROT_WRITE)
 
-  # template check(expr) =
-  proc check(expr: auto) =
+  template check(expr) =
     if not expr:
       raiseOSError(osLastError())
 
@@ -180,14 +179,8 @@ proc setLen*(m: var ReservedMem, newLen: int) =
       when defined(windows):
         check virtualFree(newCommitEnd, commitSizeShrinkage, MEM_DECOMMIT)
       else:
-        when not defined(openbsd):
-          check posix_madvise(newCommitEnd, commitSizeShrinkage,
-                              POSIX_MADV_DONTNEED) == 0
-        else:
-          # xxx figure out what to do here; options are doing nothing, and
-          # calling `madvise`; note that `MADV_DONTNEED` can differ from
-          # `POSIX_MADV_DONTNEED`; refs: https://man7.org/linux/man-pages/man3/posix_madvise.3.html
-          discard
+        check posix_madvise(newCommitEnd, commitSizeShrinkage,
+                            POSIX_MADV_DONTNEED) == 0
 
       m.committedMemEnd = newCommitEnd
 
diff --git a/tests/dll/nimhcr_integration.nim b/tests/dll/nimhcr_integration.nim
index eda130005547b..58851b5c4cf2d 100644
--- a/tests/dll/nimhcr_integration.nim
+++ b/tests/dll/nimhcr_integration.nim
@@ -1,4 +1,5 @@
 discard """
+  disabled: "openbsd"
   output: '''
 main: HELLO!
 main: hasAnyModuleChanged? true
@@ -64,8 +65,7 @@ xxx disabled: "openbsd" because it would otherwise give:
 /home/build/Nim/lib/pure/includes/oserr.nim(94) raiseOSError
 Error: unhandled exception: Not supported [OSError]
 
-The stacktrace actually points to either of these failing:
-`check mprotect` or `check posix_madvise`
+After instrumenting code, the stacktrace actually points to the call to `check mprotect`
 ]#
 
 ## This is perhaps the most complex test in the nim test suite - calling the