3 ms·

Goroutines are _very_ light (8KB stack size) 2kb, actually.

• deathanatos 10y ago
  That's curious, as I've always considered 2 pages (1 unallocated) the absolute lower bound for a thread stack size (1 page of actual, allocated memory for stack, 1 page unallocated as a guard page to detect overflow.) If a goroutine calls into C, and the C code overflows or otherwise writes ‼Fun‼ onto the stack¹ … can it clobber an adjacent stack of another goroutine or other memory?
  • EdiX 10y ago
    C code runs on a larger special stack (that's part of the reason calls to C are slow). I don't know whether or not guard pages are added.
    • 4ad 10y ago
      There are no added guard pages.