Merge pull request #60654 from ClickHouse/fuzzer-gdb

Try to run fuzzer under gdb

docker/test/fuzzer/run-fuzzer.sh

@@ -247,6 +247,12 @@ quit
     fuzzer_pid=$!
     echo "Fuzzer pid is $fuzzer_pid"
 
+    # The fuzzer_pid belongs to the timeout process.
+    actual_fuzzer_pid=$(ps -o pid= --ppid "$fuzzer_pid")
+
+    echo "Attaching gdb to the fuzzer itself"
+    gdb -batch -command script.gdb -p $actual_fuzzer_pid &
+
     # Wait for the fuzzer to complete.
     # Note that the 'wait || ...' thing is required so that the script doesn't
     # exit because of 'set -e' when 'wait' returns nonzero code.