Re: [PATCH] Add native windows on arm64 support

From: Andres Freund <andres(at)anarazel(dot)de>
To: Michael Paquier <michael(at)paquier(dot)xyz>
Cc: Niyas Sait <niyas(dot)sait(at)linaro(dot)org>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Julien Rouhaud <rjuju123(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: [PATCH] Add native windows on arm64 support
Date: 2022-08-26 03:29:43
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On 2022-08-26 11:09:41 +0900, Michael Paquier wrote:
> On Thu, Aug 25, 2022 at 06:29:07PM -0700, Andres Freund wrote:
> > I accidentally did a lot of testing with DYNAMICBASE - I accidentally
> > mistranslated's <RandomizedBaseAddress>false</> to adding
> > /DYNAMICBASE in the meson port. Survived several hundred CI cycles and dozens
> > of local runs without observing any problems related to that.
> >
> > Which doesn't surprise me, given the way we reserve space in the new process.
> Still, we had problems with that in the past and I don't recall huge
> changes in the way we allocate shmem on WIN32.

It's really not great that 7f3e17b4827 disabled randomization without even a
comment as to why...

There actually seems to have been a lot of work in that area. See 617dc6d299c
/ bcbf2346d69 and as well as the retrying in 45e004fb4e39. Those weren't
prevented by us disabling ASLR.


Andres Freund

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