Re: [PATCH v5 0/4] linux-user: Fix siginfo_t contents when jumping to non-readable pages

[Richard Henderson]

On 8/17/22 10:05, Ilya Leoshkevich wrote:
> Hi,
>
> I noticed that when we get a SEGV due to jumping to non-readable
> memory, sometimes si_addr and program counter in siginfo_t are slightly
> off. I tracked this down to the assumption that translators stop before
> the end of a page, while in reality they may stop right after it.
>
> Patch 1 fixes an invalidation issue, which may prevent SEGV from
> happening altogether.
> Patches 2-3 fix the main issue on x86_64 and s390x. Many other
> architectures have fixed-size instructions and are not affected.
> Patch 4 adds tests.
>
> Note: this series depends on [1].

Hah.  I was just thinking that I should queue your patch set to tcg-next-7.2, and then 
rebase my stuff off of that.  It would ensure that I have your test cases in tree so that 
I don't keep regressing them on you.  :-)

I'll cherry pick the one patch you're depending on.


r~