On Thu, 2017-08-24 at 10:49:57 UTC, Michael Ellerman wrote:
> Anton noticed that if we fault part way through emulating an unaligned
> instruction, we don't update the DAR to reflect that.
>
> The DAR value is eventually reported back to userspace as the address
> in the SEGV signal, and if usersp
Anton noticed that if we fault part way through emulating an unaligned
instruction, we don't update the DAR to reflect that.
The DAR value is eventually reported back to userspace as the address
in the SEGV signal, and if userspace is using that value to demand
fault then it can be confused by us
