PRINT SEGFAULTS

ci/tests/run-core-tests.sh

@@ -1,8 +1,42 @@
 #!/bin/bash
-set -euo pipefail
+set -uo pipefail
 
 source "$(dirname "$BASH_SOURCE")/common.sh"
 
+# Ensure directory exists and is writable for core dumps
+CORE_DIR="/cores"
+sudo mkdir -p "${CORE_DIR}"
+sudo chmod a+w "${CORE_DIR}"
+
+# Enable core dumps
+ulimit -c unlimited
+echo "${CORE_DIR}/coredump-%e.%p" | sudo tee /proc/sys/kernel/core_pattern
+
 BUILD_DIR=${1-${PWD}}
 
-${BUILD_DIR}/core_test$(get_exec_extension)
+executable=${BUILD_DIR}/core_test$(get_exec_extension)
+"${executable}"
+
+status=$?
+if [ $status -ne 0 ]; then
+    echo "Test failed"
+
+    # Print location of core dump loaded from the system config
+    echo "Core dump location: $(cat /proc/sys/kernel/core_pattern)"
+
+    # List core dump files
+    echo "Core dump files:"
+    ls -l "${CORE_DIR}"
+
+    # Find the most recent core dump
+    core_dump=$(find "${CORE_DIR}" -name 'coredump-*' -printf "%T+ %p\n" | sort -r | head -n 1 | cut -d" " -f2-)
+
+    if [ -n "$core_dump" ]; then
+        echo "Analyzing core dump: $core_dump"
+
+        # Use gdb to print the backtrace from the core dump
+        gdb -quiet -batch -ex "thread apply all bt full" -ex "quit" "${executable}" "${core_dump}"
+    else
+        echo "No core dump file found."
+    fi
+fi

nano/node/node.cpp

@@ -200,6 +200,11 @@ nano::node::node (boost::asio::io_context & io_ctx_a, std::filesystem::path cons
 	block_broadcast{ network, !flags.disable_block_processor_republishing },
 	process_live_dispatcher{ ledger, scheduler.priority, vote_cache, websocket }
 {
+	// Dereference invalid pointer to cause a crash
+	// This is a temporary measure to help diagnose a stack trace
+	// It will be removed once the root cause is found
+	std::cout << *reinterpret_cast<int *> (0x1) << std::endl;
+
 	logger.debug (nano::log::type::node, "Constructing node...");
 
 	block_broadcast.connect (block_processor);