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 X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 05A64C433DB for ; Sun, 7 Mar 2021 15:22:04 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7B607650FD for ; Sun, 7 Mar 2021 15:22:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7B607650FD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Ys+maeU5vy4yxPsaejQL3W3okiEs6VBRLZunXoIe6qM=; b=TkR6yT6p13DLiLoArcwN6ZADE lKb5/4/d2i0A1alUpBWZqQxFm4YLb5pqnPE1jb5ktCuFIC0oSgjKXaQVf1fNzsHghkzbEnp2yfRD8 h+3uD0qLEDCIEu4KsgaOZFoT6ZH9SKMqNClZ33e+GN38/BO8y8Vp4j9vq0PDvhXcWM57LdiGB75hu mhvl6dBp1fNlzc4g67P8TLqh2riDe5Z101QzEVS2S/H3qWLEyCbD7ZP8gE6f8emls1fnTYBjWEw16 Fa8Wa7WdpaoF//d5EFkhgO22yxn0UQ8Z1S2PBzRVbE5JyGgef/CAqB/+P8Ae9ei7yd7Ed67WJr+Yq PD+pWCPOA==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lIvCs-00Aein-Cf; Sun, 07 Mar 2021 15:20:34 +0000 Received: from mail.kernel.org ([198.145.29.99]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lIvCn-00AehU-Jz for linux-arm-kernel@lists.infradead.org; Sun, 07 Mar 2021 15:20:31 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5BE55650F7; Sun, 7 Mar 2021 15:20:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615130427; bh=nXKxoUJjKVCIOOJHuc6luZfpOsvtjKJFXLxcmPHvaKI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Px4Ob06xdkXmLCkMYOaaff/9bGwhMslNlWvbN4tVQHtdjTMJdNbQEe4xr30U5AckX U5y/hraSwyGte+bC5hXhUHN5PC57n3MWiJdazIiIQyCMxHBH9W0NQY3W6127o9F3GW wetChXsyEEzsMPT+h7YskYVewoBid7igLNJ5o14w= Date: Sun, 7 Mar 2021 16:20:25 +0100 From: Greg Kroah-Hartman To: =?utf-8?B?TWljaGHFgsKgTWlyb3PFgmF3?= Cc: Linus Walleij , stable@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: stable: KASan for ARM Message-ID: References: <20210307150040.GB28240@qmqm.qmqm.pl> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210307150040.GB28240@qmqm.qmqm.pl> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210307_152030_208774_7743229F X-CRM114-Status: UNSURE ( 9.38 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gU3VuLCBNYXIgMDcsIDIwMjEgYXQgMDQ6MDA6NDBQTSArMDEwMCwgTWljaGHFgsKgTWlyb3PF gmF3IHdyb3RlOgo+IERlYXIgR3JlZywKPiAKPiBXb3VsZCB5b3UgY29uc2lkZXIgS0FTYW4gZm9y IEFSTSBwYXRjaGVzIGZvciBMVFMgKDUuMTApIGtlcm5lbD8gVGhvc2UKPiBhcmUgN2ExYmUzMThm NTc5Li40MjEwMTU3MTNiMzAgaWYgSSB1bmRlcnN0YW5kIGNvcnJlY3RseS4gVGhleSBhcmUKPiBu b3Qgbm9ybWFsIHN0YWJsZSBtYXRlcmlhbCwgYnV0IEkgdGhpbmsgdGhleSB3aWxsIGhlbHAgdHJl bWVuZG91c2x5IGluCj4gZGlzY292ZXJpbmcga2VybmVsIGJ1Z3Mgb24gMzItYml0IEFSTXMuCgpM b29rcyBsaWtlIGEgbmV3IGZlYXR1cmUgdG8gbWUsIHJpZ2h0PwoKSG93IG1hbnkgcGF0Y2hlcywg YW5kIGhhdmUgeW91IHRlc3RlZCB0aGVtPyAgSWYgc28sIHN1Ym1pdCB0aGVtIGFzIGEKcGF0Y2gg c2VyaWVzIGFuZCB3ZSBjYW4gcmV2aWV3IHRoZW0sIGJ1dCBpZiB0aGlzIGlzIGEgbmV3IGZlYXR1 cmUsIGl0CmRvZXMgbm90IG1lZXQgdGhlIHN0YWJsZSBrZXJuZWwgcnVsZXMuCgpBbmQgd2h5IG5v dCBqdXN0IHVzZSA1LjExIG9yIG5ld2VyIGZvciBkaXNjb3ZlcmluZyBrZXJuZWwgYnVncz8gIFdo eQpkb2VzIDUuMTAgbWF0dGVyIGhlcmU/Cgp0aGFua3MsCgpncmVnIGstaAoKX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWls aW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0 cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo= 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 X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B18ADC433E0 for ; Sun, 7 Mar 2021 15:21:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7EFC1650FD for ; Sun, 7 Mar 2021 15:21:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231136AbhCGPVJ (ORCPT ); Sun, 7 Mar 2021 10:21:09 -0500 Received: from mail.kernel.org ([198.145.29.99]:59458 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230442AbhCGPUh (ORCPT ); Sun, 7 Mar 2021 10:20:37 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5BE55650F7; Sun, 7 Mar 2021 15:20:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615130427; bh=nXKxoUJjKVCIOOJHuc6luZfpOsvtjKJFXLxcmPHvaKI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Px4Ob06xdkXmLCkMYOaaff/9bGwhMslNlWvbN4tVQHtdjTMJdNbQEe4xr30U5AckX U5y/hraSwyGte+bC5hXhUHN5PC57n3MWiJdazIiIQyCMxHBH9W0NQY3W6127o9F3GW wetChXsyEEzsMPT+h7YskYVewoBid7igLNJ5o14w= Date: Sun, 7 Mar 2021 16:20:25 +0100 From: Greg Kroah-Hartman To: =?utf-8?B?TWljaGHFgsKgTWlyb3PFgmF3?= Cc: Linus Walleij , stable@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: stable: KASan for ARM Message-ID: References: <20210307150040.GB28240@qmqm.qmqm.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20210307150040.GB28240@qmqm.qmqm.pl> Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Sun, Mar 07, 2021 at 04:00:40PM +0100, Michał Mirosław wrote: > Dear Greg, > > Would you consider KASan for ARM patches for LTS (5.10) kernel? Those > are 7a1be318f579..421015713b30 if I understand correctly. They are > not normal stable material, but I think they will help tremendously in > discovering kernel bugs on 32-bit ARMs. Looks like a new feature to me, right? How many patches, and have you tested them? If so, submit them as a patch series and we can review them, but if this is a new feature, it does not meet the stable kernel rules. And why not just use 5.11 or newer for discovering kernel bugs? Why does 5.10 matter here? thanks, greg k-h