Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line

[Emilio G. Cota]

On Mon, Nov 12, 2018 at 22:44:46 +0100, Richard Henderson wrote:
> Based on an idea forwarded by Emilio, which suggests a 5-6%
> speed gain is possible.  I have not spent too much time
> measuring this, as the code size gains are significant.

Nice!

> I believe that I posted an x86_64-only patch some time ago,
> but this now includes i386, aarch64 and arm32.  In late
> testing I do some failures on i386, for sparc guest.  I'll
> follow up on that later.

The following might be related: I'm seeing segfaults with -smp 8
and beyond when doing bootup+shutdown of an aarch64 guest on
an x86-64 host. smp -1 is stable AFAICT. The first commit that
shows these crashes is "tcg/i386: Use TCG_TARGET_NEED_LDST_OOL_LABELS",
that is f7ec49a51c8 in your tcg-tlb-x86 github branch.

Thanks,

                Emilio