diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c92ed185b..f9c55e18c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,20 +41,21 @@ jobs:
         v8: [""]
         ipc: [no_ipc]
         ssl: [ssl]
-        debug: [debug, no_debug]
+        #debug: [debug, no_debug]
+        debug: [debug]
         hup: [no_hup]
         module_type: [static]
         include:
           # Wasmtime
-          - runtime: wasmtime
-            wasmtime: 19.0.0
-            os: ubuntu-latest
-            cc: gcc-12
-            ngx: 1.25.5
-            ipc: no_ipc
-            ssl: ssl
-            debug: debug
-            hup: hup
+          #- runtime: wasmtime
+          #  wasmtime: 19.0.0
+          #  os: ubuntu-latest
+          #  cc: gcc-12
+          #  ngx: 1.25.5
+          #  ipc: no_ipc
+          #  ssl: ssl
+          #  debug: debug
+          #  hup: hup
           # V8
           - runtime: v8
             v8: 12.0.267.17
@@ -66,72 +67,72 @@ jobs:
             debug: debug
             hup: no_hup
           # Old Nginx
-          - label: old_nginx
-            os: ubuntu-latest
-            cc: gcc-12
-            ngx: 1.21.6
-            runtime: wasmer
-            wasmer: 3.1.1
-            ipc: no_ipc
-            ssl: ssl
-            debug: debug
-            hup: no_hup
-          # Nginx + dynamic ngx_wasmx_module + HUP
-          - label: dynamic_nginx
-            os: ubuntu-latest
-            cc: gcc-12
-            ngx: 1.25.5
-            runtime: wasmtime
-            wasmtime: 19.0.0
-            ipc: no_ipc
-            ssl: ssl
-            debug: debug
-            hup: hup
-            module_type: dynamic
-          # No SSL
-          - os: ubuntu-latest
-            cc: gcc-12
-            ngx: 1.25.5
-            runtime: wasmer
-            wasmer: 3.1.1
-            ipc: no_ipc
-            ssl: no_ssl
-            debug: no_debug
-            hup: no_hup
-          # OpenResty
-          - label: openresty
-            os: ubuntu-latest
-            cc: gcc-12
-            openresty: 1.25.3.1
-            runtime: wasmtime
-            wasmtime: 19.0.0
-            ipc: no_ipc
-            ssl: ssl
-            debug: debug
-            hup: no_hup
+          #- label: old_nginx
+          #  os: ubuntu-latest
+          #  cc: gcc-12
+          #  ngx: 1.21.6
+          #  runtime: wasmer
+          #  wasmer: 3.1.1
+          #  ipc: no_ipc
+          #  ssl: ssl
+          #  debug: debug
+          #  hup: no_hup
+          ## Nginx + dynamic ngx_wasmx_module + HUP
+          #- label: dynamic_nginx
+          #  os: ubuntu-latest
+          #  cc: gcc-12
+          #  ngx: 1.25.5
+          #  runtime: wasmtime
+          #  wasmtime: 19.0.0
+          #  ipc: no_ipc
+          #  ssl: ssl
+          #  debug: debug
+          #  hup: hup
+          #  module_type: dynamic
+          ## No SSL
+          #- os: ubuntu-latest
+          #  cc: gcc-12
+          #  ngx: 1.25.5
+          #  runtime: wasmer
+          #  wasmer: 3.1.1
+          #  ipc: no_ipc
+          #  ssl: no_ssl
+          #  debug: no_debug
+          #  hup: no_hup
+          ## OpenResty
+          #- label: openresty
+          #  os: ubuntu-latest
+          #  cc: gcc-12
+          #  openresty: 1.25.3.1
+          #  runtime: wasmtime
+          #  wasmtime: 19.0.0
+          #  ipc: no_ipc
+          #  ssl: ssl
+          #  debug: debug
+          #  hup: no_hup
           # OpenResty + dynamic ngx_wasmx_module
-          - label: dynamic_openresty
-            os: ubuntu-latest
-            cc: gcc-12
-            openresty: 1.25.3.1
-            runtime: wasmtime
-            wasmtime: 19.0.0
-            ipc: no_ipc
-            ssl: ssl
-            debug: debug
-            hup: no_hup
-            module_type: dynamic
-          # IPC
-          - label: ipc
-            os: ubuntu-latest
-            cc: gcc-12
-            ngx: 1.25.5
-            runtime: wasmtime
-            wasmtime: 19.0.0
-            ipc: ipc
-            ssl: no_ssl
-            debug: debug
-            hup: no_hup
+          #- label: dynamic_openresty
+          #  os: ubuntu-latest
+          #  cc: gcc-12
+          #  openresty: 1.25.3.1
+          #  runtime: wasmtime
+          #  wasmtime: 19.0.0
+          #  ipc: no_ipc
+          #  ssl: ssl
+          #  debug: debug
+          #  hup: no_hup
+          #  module_type: dynamic
+          ## IPC
+          #- label: ipc
+          #  os: ubuntu-latest
+          #  cc: gcc-12
+          #  ngx: 1.25.5
+          #  runtime: wasmtime
+          #  wasmtime: 19.0.0
+          #  ipc: ipc
+          #  ssl: no_ssl
+          #  debug: debug
+          #  hup: no_hup
     uses: ./.github/workflows/job-unit-tests.yml
     with:
       os: ${{ matrix.os }}
diff --git a/.github/workflows/job-unit-tests.yml b/.github/workflows/job-unit-tests.yml
index d61e5b853..9a9d63299 100644
--- a/.github/workflows/job-unit-tests.yml
+++ b/.github/workflows/job-unit-tests.yml
@@ -118,9 +118,18 @@ jobs:
           os: ${{ inputs.os }}
           ghcr_username: ${{ github.repository_owner }}
           ghcr_password: ${{ secrets.TOKEN_GITHUB }}
+      - name: Setup coredumps location
+        run: |
+          #mkdir $GITHUB_WORKSPACE/coredumps
+          #sudo bash -c 'echo "$GITHUB_WORKSPACE/coredumps/%e.%p.%t" > /proc/sys/kernel/core_pattern'
+          sudo mkdir /coredumps
+          sudo chmod 777 /coredumps
+          sudo bash -c 'echo "/coredumps/%e.%p.%t" > /proc/sys/kernel/core_pattern'
+          ulimit -c unlimited
       - run: make setup
       - run: make
-      - run: make test
+      #- run: make test
+      - run: ./util/test.sh t/01-wasm/directives/001-module_directive.t
       - name: Run lcov
         id: lcov
         if: ${{ !env.ACT && inputs.coverage }}
@@ -163,13 +172,26 @@ jobs:
           flags: unit
       - run: rm -f t/servroot/html/nginx.sock
         if: ${{ failure() && !env.ACT }}
-      - uses: actions/upload-artifact@v4
+      - name: Prefix Upload
+        uses: actions/upload-artifact@v4
         if: ${{ failure() && !env.ACT }}
         with:
           name: ${{ github.job }}-sha-${{ github.sha }}-run-${{ github.run_number }}-${{ inputs.ngx != '' && format('nginx-{0}', inputs.ngx) || format('openresty-{0}', inputs.openresty) }}-${{ inputs.runtime }}-${{ inputs.module_type == 'dynamic' && 'dynamic' || 'static'}}-${{ inputs.ipc }}-${{ inputs.ssl }}-${{ inputs.debug }}-${{ inputs.hup }}
           path: |
             work/buildroot/
             t/servroot*
+      - name: Executable Upload
+        uses: actions/upload-artifact@v4
+        if: ${{ failure() && !env.ACT }}
+        with:
+          name: executable
+          path: work/buildroot/nginx
+      - name: Coredump Upload
+        uses: actions/upload-artifact@v4
+        if: ${{ failure() && !env.ACT }}
+        with:
+          name: coredumps
+          path: /coredumps
       - name: Cleanup
         if: ${{ always() }}
         uses: ./.github/actions/cleanup
diff --git a/t/01-wasm/directives/001-module_directive.t b/t/01-wasm/directives/001-module_directive.t
index da998b47c..6440bf4b4 100644
--- a/t/01-wasm/directives/001-module_directive.t
+++ b/t/01-wasm/directives/001-module_directive.t
@@ -159,6 +159,7 @@ qr/\[emerg\] .*? \[wasm\] open\(\) ".*?none\.wat" failed \(2: No such file or di
 
 
 === TEST 10: module directive - no .wat bytes - v8
+--- ONLY
 --- skip_eval: 4: $::nginxV !~ m/v8/
 --- main_config
     wasm {