On linux, __rust_probestack shouldn't be called on smallish stack allocations · Issue #74405 · rust-lang/rust (original) (raw)

On linux (x86_64), had a stack allocation that was "only" 8*4096 bytes causing __rust_probestack to be called. From what I understand from this, #43072, linux only needs to have the stack probed for much larger sizes.

Compiler version: Tested on 1.44.0, but a cursory glance in perf still shows __rust_probestack.