diff --git a/cosmo-all/Dockerfile b/cosmo-all/Dockerfile
index d2ef3c3..45b5b4b 100644
--- a/cosmo-all/Dockerfile
+++ b/cosmo-all/Dockerfile
@@ -29,13 +29,15 @@ RUN --mount=type=tmpfs,target=/tmp : \
      && rm -r o.old \
     ;fi \
 \
-# skip some checks that are currently failing: \
  && skip() { mkdir -p "${1%/*}" && touch -d @2222222222 "$1" ;} \
- && skip "o/$mode/test/libc/calls/ftruncate_test.com.runs" \
+# skip some checks that fail under podman: \
  && skip "o/$mode/test/libc/calls/getgroups_test.com.runs" \
  && skip "o/$mode/test/libc/calls/getpriority_test.com.runs" \
-# these can fail in nested podman: \
+# these can fail when nesting podman: \
+ && skip "o/$mode/test/libc/calls/ftruncate_test.com.runs" \
  && skip "o/$mode/test/libc/stdio/tmpfile_test.com.runs" \
+ && skip "o/$mode/test/tool/net/lunix_test.lua.runs" \
+ && skip "o/$mode/third_party/python/Lib/test/test_selectors.py.runs" \
 # FIXME: SIGSEGV: \
  && skip "o/$mode/third_party/python/Lib/test/test_ioctl.py.runs" \
 \