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@ysiraichi ysiraichi commented Sep 30, 2025

Since pytorch/pytorch#162659 was merged again, we observed that SiLUBackward C++ test was crashing with a segmentation fault #9561. Not only that, but TPU tests started failing because flax 0.12.0 (old: 0.11.2) started pulling a newer jax 0.7.2 (old: 0.7.1).

  • Old CI build: link
  • Recent broken CI build: link

Therefore, in this PR:

  • Pin flax to version 0.11.2
  • Skip SiLUBackward C++ test

Additionally, it also installs jax and libtpu using the CI PyTorch/XLA wheels metadata instead of using PyPI wheels metadata. This should avoid other version compatibilities.

@ysiraichi ysiraichi merged commit 302c3f1 into master Sep 30, 2025
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2 participants