Re: [PATCH 0/2] Update use_goto_tb() in hppa and rx targets

[Richard Henderson]

On 5/19/20 9:21 AM, Ahmed Karaman wrote:
> The issue arose because the page crossings check in use_goto_tb()
> function is required only in the system mode. Checking it in both modes
> causes an unnecessary overhead in the user mode.

It is not only required in system mode.

You can see failures in user-mode if you modify executable pages, or change
their permissions with mmap.  Such as if the guest program contains a JIT.


r~