GNU bug report logs - #36649
27.0.50; pure space and pdumper

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Lars Ingebrigtsen <larsi <at> gnus.org>, Eli Zaretskii <eliz <at> gnu.org>
Cc: rpluim <at> gmail.com, stefan <at> marxist.se, schwab <at> linux-m68k.org, monnier <at> iro.umontreal.ca, pipcet <at> gmail.com, 36649 <at> debbugs.gnu.org, akrl <at> sdf.org
Subject: bug#36649: 27.0.50; pure space and pdumper
Date: Mon, 17 May 2021 01:43:31 -0700

On 5/16/21 6:38 AM, Lars Ingebrigtsen wrote:

> I thought we had ASLR switched on on GNU/Linux builds?

If unexec is used on GNU/Linux, Emacs is supposed to switch ASLR off by 
using "setfattr -n user.pax.flags -v er temacs", and if that doesn't 
work by using the personality syscall and then re-execing itself (see 
maybe_disable_address_randomization).

I doubt whether it's worth spending much time debugging the problem, 
since nobody uses unexec on GNU/Linux any more.

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