From: Johannes Berg <johannes@sipsolutions.net>
To: Patricia Alfonso <trishalfonso@google.com>
Cc: richard@nod.at, jdike@addtoit.com,
Brendan Higgins <brendanhiggins@google.com>,
linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com,
linux-um@lists.infradead.org, David Gow <davidgow@google.com>,
aryabinin@virtuozzo.com, dvyukov@google.com,
anton.ivanov@cambridgegreys.com
Subject: Re: [RFC PATCH] UML: add support for KASAN under x86_64
Date: Thu, 16 Jan 2020 09:03:35 +0100 [thread overview]
Message-ID: <b55720804de8e56febf48c7c3c11b578d06a8c9f.camel@sipsolutions.net> (raw)
In-Reply-To: <4f382794416c023b6711ed2ca645abe4fb17d6da.camel@sipsolutions.net>
On Thu, 2020-01-16 at 08:57 +0100, Johannes Berg wrote:
>
> And if I remember from looking at KASAN, some of the constructors there
> depended on initializing after the KASAN data structures were set up (or
> at least allocated)? It may be that you solved that by allocating the
> shadow so very early though.
Actually, no ... it's still after main(), and the constructors run
before.
So I _think_ with the CONFIG_CONSTRUCTORS revert, this will no longer
work (but happy to be proven wrong!), if so then I guess we do have to
find a way to initialize the KASAN things from another (somehow
earlier?) constructor ...
Or find a way to fix CONFIG_CONSTRUCTORS and not revert, but I looked at
it quite a bit and didn't.
johannes
next prev parent reply other threads:[~2020-01-16 8:03 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-15 18:28 [RFC PATCH] UML: add support for KASAN under x86_64 Patricia Alfonso
2020-01-15 18:48 ` Johannes Berg
2020-01-15 22:56 ` Patricia Alfonso
2020-01-16 7:57 ` Johannes Berg
2020-01-16 8:03 ` Johannes Berg [this message]
2020-01-16 9:18 ` Dmitry Vyukov
2020-01-16 9:20 ` Johannes Berg
2020-01-16 9:23 ` Dmitry Vyukov
2020-01-17 9:59 ` Dmitry Vyukov
2020-01-17 10:03 ` Dmitry Vyukov
2020-01-17 10:05 ` Dmitry Vyukov
2020-02-06 18:33 ` Patricia Alfonso
2020-02-06 18:21 ` Patricia Alfonso
2020-02-06 19:14 ` Johannes Berg
2020-01-16 8:24 ` Dmitry Vyukov
2020-01-16 8:44 ` Dmitry Vyukov
2020-02-11 23:48 ` Patricia Alfonso
2020-02-12 6:23 ` Dmitry Vyukov
2020-01-16 8:50 ` Dmitry Vyukov
2020-01-16 8:52 ` Dmitry Vyukov
2020-02-12 0:19 ` Patricia Alfonso
2020-02-12 6:24 ` Dmitry Vyukov
2020-02-12 22:25 ` Patricia Alfonso
2020-02-13 5:39 ` Dmitry Vyukov
2020-02-13 22:55 ` Patricia Alfonso
2020-01-16 9:09 ` Dmitry Vyukov
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