Asyncio lz4 segfault debugging

.github/workflows/tmate-debug.yml

@@ -0,0 +1,16 @@
+name: tmate-debug-osx
+on:
+  workflow_dispatch:
+    inputs:
+      debug_enabled:
+        description: 'Run the build with tmate debugging enabled (https://github.com/marketplace/actions/debugging-with-tmate)'
+        required: false
+        default: false
+jobs:
+  build:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup tmate session
+        uses: mxschmitt/action-tmate@v3
+        if: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.debug_enabled }}

programs/README.md

@@ -164,6 +164,7 @@ Advanced arguments :
 --filelist FILE : read list of files to operate upon from FILE
 --output-dir-flat DIR : processed files are stored into DIR
 --output-dir-mirror DIR : processed files are stored into DIR respecting original directory structure
+--[no-]asyncio : use asynchronous IO (default: enabled)
 --[no-]check : during compression, add XXH64 integrity checksum to frame (default: enabled). If specified with -d, decompressor will ignore/validate checksums in compressed frame (default: validate).
 --      : All arguments after "--" are treated as files