v1.1.21-baseline crashing with Illegal Instruction (regression from v1.1.20)

[dani931004]

Hey, I'm getting an 'Illegal instruction' crash with the latest v1.1.21 baseline build on my older laptop.

Everything was working fine on v1.1.20, but after updating to v1.1.21 it started crashing immediately. It looks like a Bun panic related to missing AVX support, even though I'm using the baseline build which is supposed to support older CPUs.

Here is the panic log:

CPU lacks AVX support. Please consider upgrading to a newer CPU.
panic(main thread): Illegal instruction at address 0x4001FB4
oh no: Bun has crashed. This indicates a bug in Bun, not your code.

My specs:

• CPU: Intel Pentium B980 (No AVX support)
• OS: Ubuntu 24.04.3 LTS
• Kernel: 6.14.0

I've downgraded back to v1.1.20 for now and it's working again, so it definitely seems like a regression in the new version. Any chance this can be looked into for the next update?