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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.


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