diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 03209406d..2b54843d6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -266,7 +266,8 @@ jobs:
 
       - name: Configure python3
         run: |
-          sudo ./configure python --config=python3-config
+          sudo ./configure python --config=${Python_ROOT_DIR}/bin/python3-config --lib-path=$LD_LIBRARY_PATH
+          cat build/include/nxt_python3_mounts.h
         if: steps.metadata.outputs.module == 'python'
 
       - name: Make python3
@@ -351,10 +352,10 @@ jobs:
           namei -l ${{ github.workspace }}
 
       # Install python3 if not present
-      - uses: actions/setup-python@v5
-        with:
-          python-version: '3'
-        if: steps.metadata.outputs.module != 'wasm'
+#      - uses: actions/setup-python@v5
+#        with:
+#          python-version: '3'
+#        if: steps.metadata.outputs.module != 'wasm'
 
       - name: Install pytest
         run: |
@@ -367,6 +368,7 @@ jobs:
           if [ "${{ matrix.build }}" == "wasm-wasi-component" ]; then
             pytest-3 --print-log ${{ steps.metadata.outputs.testpath }}
           else
+            ls -l /opt/hostedtoolcache/Python/3.12.7/x64/lib/
             sudo -E pytest-3 --print-log ${{ steps.metadata.outputs.testpath }}
           fi
         if: steps.metadata.outputs.module != 'wasm'
diff --git a/src/nxt_isolation.c b/src/nxt_isolation.c
index 909a43f4b..b928924c1 100644
--- a/src/nxt_isolation.c
+++ b/src/nxt_isolation.c
@@ -625,6 +625,7 @@ nxt_isolation_set_lang_mounts(nxt_task_t *task, nxt_process_t *process,
     }
 
     n = mounts->nelts;
+    printf("%s: nr mounts [%lu]\n", __func__, n);
     mnt = mounts->elts;
     lang_mnt = lang_mounts->elts;
 
@@ -764,6 +765,7 @@ nxt_isolation_prepare_rootfs(nxt_task_t *task, nxt_process_t *process)
     mounts = process->isolation.mounts;
 
     n = mounts->nelts;
+    printf("%s: nr mounts [%lu]\n", __func__, n);
     mnt = mounts->elts;
 
     for (i = 0; i < n; i++) {
@@ -790,6 +792,9 @@ nxt_isolation_prepare_rootfs(nxt_task_t *task, nxt_process_t *process)
         if (nxt_slow_path(ret != NXT_OK)) {
             goto undo;
         }
+
+        printf("%s: mounted [%s] -> [%s]\n", __func__,
+               (const char *)mnt[i].src, (const char *)dst);
     }
 
     return NXT_OK;