Vectorscan requires SSE4.2 as a minimum on x86_64. For Hyperscan this used to be SSSE3.
Applications that use the library call hs_valid_platform() to check if the CPU fulfils this minimum requirement. However, when Vectorscan upgraded to SSE4.2, the check was not updated. This leads to the library trying to execute instructions that are not supported, resulting in the application to crash.
This might not have been noticed as the CPUs that do not support SSE4.2 are rather old and unlikely to run any load where performance is an issue. However, I believe that the library should not let the application crash.
mtremer
commented
3 months ago
Vectorscan requires SSE4.2 as a minimum on x86_64. For Hyperscan this used to be SSSE3.
Applications that use the library call hs_valid_platform() to check if the CPU fulfils this minimum requirement. However, when Vectorscan upgraded to SSE4.2, the check was not updated. This leads to the library trying to execute instructions that are not supported, resulting in the application to crash.
This might not have been noticed as the CPUs that do not support SSE4.2 are rather old and unlikely to run any load where performance is an issue. However, I believe that the library should not let the application crash.