Deflake some pkgci jobs.

[ScottTodd]

• Increase real weight test timeouts from 4 minutes to 10 minutes to work around https://github.com/iree-org/iree/actions/runs/12281522213/job/34271200734#step:9:1461

   ============================== slowest durations ===============================
  240.00s call     SHARK-TestSuite/iree_tests/sharktank/punet/int8/test_cases.json::sdxl_unet_int8_export.mlir::gpu_rocm::real_weights
  31.44s call     SHARK-TestSuite/iree_tests/sharktank/punet/fp16/test_cases.json::sdxl_unet_fp16_export.mlir::gpu_rocm::real_weights
  11.22s call     SHARK-TestSuite/iree_tests/sharktank/llama/open-llama-3b-v2-f16/test_cases.json::open-llama-3b-v2-f16.mlirbc::gpu_rocm::real_weights_prefill
  0.08s call     SHARK-TestSuite/iree_tests/pytorch/models/resnet50/test_cases.json::resnet50.mlirbc::gpu_rocm::real_weights
  0.07s call     SHARK-TestSuite/iree_tests/pytorch/models/opt-125M/test_cases.json::opt-125M.mlirbc::gpu_rocm::real_weights
  
  (10 durations < 0.005s hidden.  Use -vv to show these durations.)
  =========================== short test summary info ============================
  PASSED SHARK-TestSuite/iree_tests/sharktank/llama/open-llama-3b-v2-f16/test_cases.json::open-llama-3b-v2-f16.mlirbc::gpu_rocm::real_weights_prefill
  PASSED SHARK-TestSuite/iree_tests/sharktank/punet/fp16/test_cases.json::sdxl_unet_fp16_export.mlir::gpu_rocm::real_weights
  XFAIL SHARK-TestSuite/iree_tests/pytorch/models/opt-125M/test_cases.json::opt-125M.mlirbc::gpu_rocm::real_weights - Expected compilation to fail (included in 'expected_compile_failures')
  XFAIL SHARK-TestSuite/iree_tests/pytorch/models/resnet50/test_cases.json::resnet50.mlirbc::gpu_rocm::real_weights - Expected compilation to fail (included in 'expected_compile_failures')
  FAILED SHARK-TestSuite/iree_tests/sharktank/punet/int8/test_cases.json::sdxl_unet_int8_export.mlir::gpu_rocm::real_weights - Failed: Timeout >240.0s
  ======= 1 failed, 2 passed, 2 deselected, 2 xfailed in 282.99s (0:04:42) =======
  

• Skip flaky test_gridsample_zeros_padding op test to work around https://github.com/iree-org/iree/actions/runs/12286576807/job/34287344921#step:8:59

   _ IREE compile and run: test_gridsample_zeros_padding::model.mlir::model.mlir::cpu_llvm_sync _
  [gw3] linux -- Python 3.11.10 /home/runner/work/iree/iree/venv/bin/python
  Error invoking iree-run-module
  Error code: 1
  Stderr diagnostics:
  
  Stdout diagnostics:
  EXEC @test_gridsample_zeros_padding
  [FAILED] result[0]: element at index 3 (2.80544E+13) does not match the expected (0); expected that the view is equal to contents of a view of 1x1x2x4xf32
    expected:
  1x1x2x4xf32=[[[0 0 1.7 0][0 1.7 0 0]]]
    actual:
  1x1x2x4xf32=[[[0 0 1.7 2.80544E+13][2.80544E+13 1.7 0 2.80544E+13]]]
  

  and https://github.com/iree-org/iree/actions/runs/12285879922/job/34285283119#step:8:51

  _ IREE compile and run: test_gridsample_zeros_padding::model.mlir::model.mlir::cpu_llvm_sync _
  [gw3] linux -- Python 3.11.11 /home/runner/work/iree/iree/venv/bin/python
  Error invoking iree-run-module
  Error code: 1
  Stderr diagnostics:
  
  Stdout diagnostics:
  EXEC @test_gridsample_zeros_padding
  [FAILED] result[0]: element at index 3 (39529.7) does not match the expected (0); expected that the view is equal to contents of a view of 1x1x2x4xf32
    expected:
  1x1x2x4xf32=[[[0 0 1.7 0][0 1.7 0 0]]]
    actual:
  1x1x2x4xf32=[[[0 0 1.7 39529.7][39529.7 1.7 0 39529.7]]]
  

  (This test seems to be failing consistently as of ea9176a, but with differing outputs, we could mark it as failing or skip)

[amd-chrissosa]

Thanks for doing this - do we usually file bugs to re-enable skipped tests after we skip them?

[ScottTodd]

Thanks for doing this - do we usually file bugs to re-enable skipped tests after we skip them?

There are a few such bugs but they can get lost in the noise. When we do file a bug, we leave a comment like

# TODO(#1234): re-enable when this test isn't flaky

The JSON file here also isn't a great place for comments about individual tests though, since it is partly auto-generated and there are just so many test cases.