> On Feb 11, 2022, at 8:45 AM, Martin Husemann <mar...@duskware.de> wrote: > > so Jason is correct. For userland we default to RMO for 64bit binaries > (but honor their elf flags), and TSO for 32bit.
Right, v7 didn't have any barrier instructions, and v8 only had STBAR (a stores-before-stores barrier), IIRC. I did not realize we are using RMO for 64-bit userland, tho. -- thorpej