Re: Question about MTE and SyS

qemu-arm

Re: Question about MTE and SyS_brk

From:	Richard Henderson
Subject:	Re: Question about MTE and SyS_brk
Date:	Thu, 1 Apr 2021 17:00:15 -0700
User-agent:	Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1

On 3/31/21 8:57 PM, Stephen Long wrote:

Hi Richard, do you know if the following is supposed to work?


It works on FVP.  Probably works on qemu-system mode.

I think it's aborting
with qemu because qemu is considering the page not anonymous


Yep.  It looks like PAGE_ANON got lost with the mprotect.
Not good.


r~

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