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test(python): isolate fork worker core dumps for diagnosis

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Xuanwo
2026-10-27 02:16:18 +08:00
parent 23658d992c
commit 94a9fc8b14
1 changed files with 4 additions and 0 deletions
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python/python/tests/test_torch.py
+4
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@@ -328,6 +328,10 @@ def _fork_dataloader_diagnostics(worker_id=None):
faulthandler.disable()
faulthandler.enable(all_threads=True)
faulthandler.register(signal.SIGUSR1, all_threads=True, chain=False)
if worker_id is not None and (core_root := os.environ.get("PR3851_CORE_DIRECTORY")):
core_directory = Path(core_root) / str(os.getpid())
core_directory.mkdir()
os.chdir(core_directory)
def _join_fork_dataloader(proc):