From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id D8036C433EF for ; Sun, 29 May 2022 17:56:10 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id F1CC58D0002; Sun, 29 May 2022 13:56:09 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id ECBF18D0001; Sun, 29 May 2022 13:56:09 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D91AC8D0002; Sun, 29 May 2022 13:56:09 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id C6B2D8D0001 for ; Sun, 29 May 2022 13:56:09 -0400 (EDT) Received: from smtpin17.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay13.hostedemail.com (Postfix) with ESMTP id B930B606CA for ; Sun, 29 May 2022 17:56:09 +0000 (UTC) X-FDA: 79519534458.17.1787F87 Received: from sipsolutions.net (s3.sipsolutions.net [144.76.43.62]) by imf29.hostedemail.com (Postfix) with ESMTP id DB99B12004A for ; Sun, 29 May 2022 17:55:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=MIME-Version:Content-Transfer-Encoding: Content-Type:References:In-Reply-To:Date:Cc:To:From:Subject:Message-ID:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=190r9qJwFvNNRiNpmHW+00h4gKYz6/hvhNKsg+u9ISs=; t=1653846968; x=1655056568; b=GC5fOM1OCQquYkY3ynfx3n8JNtJSYGu2gKpEzb9+qgnGB6b ac5cO9BoIy/aag0ecx2qCz8BTFBe9q9gfYoGsZk1OWnKfgJdjHG/JCI6t7VIcaS/Cq5VyE5NK1tUC fesPiSzjJ0WSaT5BJLqGRwX02HIXp0UjfCTrHoxMomkepwS4gue/hoRFEioRo+mfNtRjjq3yxd9Hx DUciiF2a+GNVuzM0rt3ByoPSpy54d/1ol06cyteLwyyxZxvE7WRNi0O783i/mLAthAo7Gpl3I+EBU dIYYEYOqrZkRIpUKjfhvj7L1IqFnpyZVt3SsOB8wS2cTRP+qweBmYU8wNHEYRRLw==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.95) (envelope-from ) id 1nvN8w-007nhJ-9k; Sun, 29 May 2022 19:55:58 +0200 Message-ID: Subject: Re: [PATCH v2 2/2] UML: add support for KASAN under x86_64 From: Johannes Berg To: David Gow , Vincent Whitchurch , Patricia Alfonso , Jeff Dike , Richard Weinberger , anton.ivanov@cambridgegreys.com, Dmitry Vyukov , Brendan Higgins , Andrew Morton , Andrey Konovalov , Andrey Ryabinin Cc: kasan-dev , linux-um@lists.infradead.org, LKML , Daniel Latypov , linux-mm@kvack.org Date: Sun, 29 May 2022 19:55:57 +0200 In-Reply-To: References: <20220527185600.1236769-1-davidgow@google.com> <20220527185600.1236769-2-davidgow@google.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.44.1 (3.44.1-1.fc36) MIME-Version: 1.0 X-malware-bazaar: not-scanned Authentication-Results: imf29.hostedemail.com; dkim=pass header.d=sipsolutions.net header.s=mail header.b=GC5fOM1O; dmarc=pass (policy=none) header.from=sipsolutions.net; spf=pass (imf29.hostedemail.com: domain of johannes@sipsolutions.net designates 144.76.43.62 as permitted sender) smtp.mailfrom=johannes@sipsolutions.net X-Rspam-User: X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: DB99B12004A X-Stat-Signature: uzma7bhwb596ddsai7b5nokj7gxxxq4u X-HE-Tag: 1653846956-831808 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, 2022-05-27 at 22:14 +0200, Johannes Berg wrote: > On Fri, 2022-05-27 at 11:56 -0700, David Gow wrote: > >=20 > > This is v2 of the KASAN/UML port. It should be ready to go. >=20 > Nice, thanks a lot! :) >=20 > > It does benefit significantly from the following patches: > > - Bugfix for memory corruption, needed for KASAN_STACK support: > > https://lore.kernel.org/lkml/20220523140403.2361040-1-vincent.whitchurc= h@axis.com/ >=20 > Btw, oddly enough, I don't seem to actually see this (tried gcc 10.3 and > 11.3 so far) - is there anything you know about compiler versions > related to this perhaps? Or clang only? >=20 I do see it on gcc (Debian 10.2.1-6) 10.2.1 20210110, but that was a different .config too ... strange. johannes