feat: add cuda core dump CI warpper (#18909)

python/sglang/test/ci/ci_utils.py

@@ -7,6 +7,7 @@ import time
 from dataclasses import dataclass
 from typing import Callable, List, Optional, Union
 
+from sglang.srt.debug_utils import cuda_coredump
 from sglang.srt.utils.common import kill_process_tree
 from sglang.test.ci.ci_register import CIRegistry
 
@@ -130,6 +131,10 @@ def run_unittest_files(
         max_attempts: Maximum number of attempts per file including initial run (default: 2).
         retry_wait_seconds: Seconds to wait between retries (default: 60).
     """
+    coredump_enabled = cuda_coredump.is_enabled()
+    if coredump_enabled:
+        cuda_coredump.cleanup_dump_dir()
+
     tic = time.perf_counter()
     success = True
     passed_tests = []
@@ -161,7 +166,6 @@ def run_unittest_files(
                     ["python3", full_path],
                     stdout=subprocess.PIPE,
                     stderr=subprocess.STDOUT,
-                    env=os.environ,
                     text=True,
                     errors="ignore",  # Ignore non-UTF-8 bytes to prevent UnicodeDecodeError
                 )
@@ -172,7 +176,7 @@ def run_unittest_files(
                 process.wait()
             else:
                 process = subprocess.Popen(
-                    ["python3", full_path], stdout=None, stderr=None, env=os.environ
+                    ["python3", full_path], stdout=None, stderr=None
                 )
                 process.wait()
 
@@ -258,6 +262,9 @@ def run_unittest_files(
 
     elapsed_total = time.perf_counter() - tic
 
+    if coredump_enabled and not success:
+        cuda_coredump.report()
+
     if success:
         logger.info(f"Success. Time elapsed: {elapsed_total:.2f}s")
     else: