test(python): raise the per-test crash-isolation deadline to 1500 s - #911
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The 900 s default killed a legitimately long large-tensor fuzzer config (fe-python-conv-large-tensor-fuzzer on GB100, cudnn/cudnn job 425615718: N1_C8K1_R1711x1251_bf16_2d_dg_nar was still inside torch.cuda.synchronize at 15:00). Give slow-but-live tests 25 min before the worker is replaced.
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September 4, 2026 16:50
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@coderabbitai ignore
Follow-up to #639. The 900 s
CUDNN_TEST_TIMEOUTdefault fired on a legitimately slow large-tensor fuzzer config in the backend CI (fe-python-conv-large-tensor-fuzzer: [GB100, 13, 4], https://gitlab-master.nvidia.com/cudnn/cudnn/-/jobs/425615718): worker gw0 was hard-exited at exactly 15:00 while insidetorch.cuda.synchronize()in_run_cudnnforlt1_N1_C8K1_R1711x1251_bf16_2d_dg_nar, and xdist reported the test as a worker crash.Bump the default to 1500 s (25 min) and update
test/AGENTS.md.CUDNN_TEST_TIMEOUTstill overrides per run,0disables.