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chriselrod avatar chriselrod commented on August 19, 2024

The buffer looks like it is sized correctly (N * register_size() * UF).

The error says

Unreachable reached at 0x2b0f7232a192
--


signal (4): Illegal instruction

which doesn't look memory related, although memory corruption can cause unpredictable results.

Let me know if you can get an example, or if you can try with 0.1.5.
0.1.5 did not change anything related to the buffer.

from triangularsolve.jl.

jakebolewski avatar jakebolewski commented on August 19, 2024

Looks like updating / pinning to v1.5 fixed the issue, (which also had impacts with dependee package versions so it's difficult to exactly pin down what resolved it).

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chriselrod avatar chriselrod commented on August 19, 2024

Hmm. Okay. Let me know if this comes up again on the latest version.

There were recent segfault issues with StrideArraysCore 0.2.0 that have since been fixed in 0.2.1, which the latest Polyester requires. However, TriangularSolve 0.1.3 requires Polyester 0.3, which is limited to StrideArraysCore 0.1.
There're have been other Polyester segfault issues, but all the known ones have been fixed in the latest from the 0.3 and 0.4 series, and they tended to involve lots of big structs in the loops, which shouldn't be the case in TriangularSolve or RecursiveFactorization.

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jakebolewski avatar jakebolewski commented on August 19, 2024

Thanks @chriselrod, I'll keep this in mind going forward if we see this coming up again.

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