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Date:      Fri, 27 Jan 2017 20:02:23 -0500
From:      Shawn Webb <shawn.webb@hardenedbsd.org>
To:        Andrew Turner <andrew@fubar.geek.nz>
Cc:        Tom Vijlbrief <tvijlbrief@gmail.com>, freebsd-arm <freebsd-arm@freebsd.org>
Subject:   Re: Arm64 stack issues (was Re: FreeBSD status for/on ODroid-C2?)
Message-ID:  <20170128010223.tjivldnh7pyenbg6@mutt-hardenedbsd>
In-Reply-To: <20170128010138.iublazyrhhqycn37@mutt-hardenedbsd>
References:  <CAOQrpVfK-Dw_rSo_YVY5MT1wbc6Ah-Pj%2BWv8UGjeiUQ1b3%2B-mg@mail.gmail.com> <20170124191357.0ec0abfd@zapp> <20170128010138.iublazyrhhqycn37@mutt-hardenedbsd>

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On Fri, Jan 27, 2017 at 08:01:38PM -0500, Shawn Webb wrote:
> On Tue, Jan 24, 2017 at 07:13:57PM +0000, Andrew Turner wrote:
> > Can you try with r312703 and without the malloc.conf change? I think the
> > issue was because errno was stored just before some internal jemalloc
> > state in the bss and there was a bug where the setting of errno where
> > it would overwrite 32 bits of this state.
>=20
> I've just tested on an RPI3 and tcache still needs to be disabled with
> malloc.conf.

I misspoke somewhat: the testing was done on a SoftIron Overdrive 1000.

--=20
Shawn Webb
Cofounder and Security Engineer
HardenedBSD

GPG Key ID:          0x6A84658F52456EEE
GPG Key Fingerprint: 2ABA B6BD EF6A F486 BE89  3D9E 6A84 658F 5245 6EEE

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