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]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 98312C44500 for ; Tue, 7 Jul 2026 10:47:44 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 766386B009D; Tue, 7 Jul 2026 06:47:43 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 7173A6B009E; Tue, 7 Jul 2026 06:47:43 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 62D156B009F; Tue, 7 Jul 2026 06:47:43 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 359F66B009D for ; Tue, 7 Jul 2026 06:47:43 -0400 (EDT) Received: from smtpin29.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay06.hostedemail.com (Postfix) with ESMTP id B5BC41C7F4C for ; Tue, 7 Jul 2026 10:47:42 +0000 (UTC) X-FDA: 84961654764.29.7F7DA50 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf14.hostedemail.com (Postfix) with ESMTP id 1025F100007 for ; Tue, 7 Jul 2026 10:47:40 +0000 (UTC) Authentication-Results: imf14.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=nAwcbqQZ; spf=pass (imf14.hostedemail.com: domain of ljs@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=ljs@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1783421261; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=LLhzkk/JgHcYgAhLZKjLeN62LByel6fmISiRV1ITuB4=; b=v8xx4pRTbffq1vOdhiTsFgDcA7WkZ2jdFMqEFBomYJ8NSr5Bax7vjcGRug0M4uB7FYFRjy 2QCFPIsw3faqi//pGoNjZmxYa0aRWVsPCb/qHQLyKgQU21/Px5uuGgcJjbNs8nmPQXFtnH X22AMHzKsqhSKYfoJXRFBrS4XkOWwH4= ARC-Authentication-Results: i=1; imf14.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=nAwcbqQZ; spf=pass (imf14.hostedemail.com: domain of ljs@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=ljs@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1783421261; b=anzJesU7caXsowA2lzDXfOyqv/QHmT4220Pw2CVE2UP+cTJJ5OGSClvgG1WiF1kmNELJOF EzZMG7/lFVYXs4/CaWeIrxapLXeKo/Ky4RHpvVGMDcnPEdlOOadCKPlgIcJcJuvVUv7CSY Vk+pd10p96MHqpRhTGo8Nwn92BYMat0= Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 4330C40715; Tue, 7 Jul 2026 10:47:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1BA301F000E9; Tue, 7 Jul 2026 10:47:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783421260; bh=LLhzkk/JgHcYgAhLZKjLeN62LByel6fmISiRV1ITuB4=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=nAwcbqQZ6EYWFhU6Pa79F4DwZWj+s50w7KhSPUgAeSGSsvopOpj4c3CR6Dc4BvSKY UI/T4Y1V/RDDoyeFB8sXD2vSc8XMgX7PuHapXBY0cr7IWraSANQSAw1tuqycqvya7H EOLCy/nYmsu9fsBZZUMJw29VxKcXmmkS6wgUhpYDSoopqSIeazhcGwCvu+qGCZzZfm i6rrFcDrq00hFMpsTT5W6KK6td/K2YCAI1AB22h3luD//ahG1ub28FDnVRKZXh9KJy yczJHuo2utfhmEijYANtSxrq9T9w4QGeuL41lVe4jp1n6hobidMgbC6xXylCzlyKTK rSE3IBUcHgXTg== Date: Tue, 7 Jul 2026 11:47:16 +0100 From: Lorenzo Stoakes To: Pedro Falcato Cc: Andrew Morton , Russell King , Dinh Nguyen , Simon Schuster , "James E . J . Bottomley" , Helge Deller , Jarkko Sakkinen , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, Ian Abbott , H Hartley Sweeten , Lucas Stach , David Airlie , Simona Vetter , Patrik Jakobsson , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Clark , Dmitry Baryshkov , Tomi Valkeinen , Thierry Reding , Mikko Perttunen , Jonathan Hunter , Christian Koenig , Huang Rui , Ankit Agrawal , Alex Williamson , Alexander Viro , Christian Brauner , Dan Williams , Muchun Song , Oscar Salvador , David Hildenbrand , Suren Baghdasaryan , "Liam R . Howlett" , Matthew Wilcox , Marek Szyprowski , Peter Zijlstra , Arnaldo Carvalho de Melo , Namhyung Kim , Masami Hiramatsu , Oleg Nesterov , Steven Rostedt , SeongJae Park , Miaohe Lin , Hugh Dickins , Mike Rapoport , Kees Cook , Paolo Bonzini , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-parisc@vger.kernel.org, linux-sgx@vger.kernel.org, etnaviv@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-tegra@vger.kernel.org, kvm@vger.kernel.org, linux-fsdevel@vger.kernel.org, nvdimm@lists.linux.dev, linux-mm@kvack.org, iommu@lists.linux.dev, linux-perf-users@vger.kernel.org, linux-trace-kernel@vger.kernel.org, kasan-dev@googlegroups.com, damon@lists.linux.dev, Rik van Riel , Harry Yoo , Jann Horn Subject: Re: [PATCH 29/30] tools/testing/vma: default VMA flag bits to 64-bit Message-ID: References: <27cd07f6dd862d92410cf9db03f7c11e5f66854d.1782735110.git.ljs@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 1025F100007 X-Stat-Signature: j6p97jrcdifxpd7gqsxpjd1xzp6emy4r X-HE-Tag: 1783421260-246967 X-HE-Meta: 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 GfUOHxQ0 JINaszoyNXEO5z28Ta3CiDP3tgDDaDZAJFKQCU7slfdDbohyebS8Gv85amTRq/jNglgBP106Tta0Qp969TSj2tWhs+f/1blrLpVOo+ZG4XQsvj11vHYnxicUHOX8rjoRuOQ768uupeIWbOzJhsdxnTtE+H0NtTcxfMY+A4wo6yy5r5NOzePC9YwvoC14mrMLr028f6zyiyUF0zAymxcUNo9MbipJqxRdBL9+AmgL/T4bL5g+RY16ktk0Qpi4BRLAzJ+MAfaffP2l72VrA54wMQpiIudpK4J6qs6wk8YYftX+CKvK3HKNbyfNComY/N4BwpOqViMoXgLVgZtTDlURXM9UXYYfxe1lukMSq Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Jul 02, 2026 at 12:44:21PM +0100, Pedro Falcato wrote: > On Mon, Jun 29, 2026 at 01:23:40PM +0100, Lorenzo Stoakes wrote: > > With all of the sanitisers turned on, setting the VMA flag bits depth to > > 128 by default results in overly long build times. > > > > Reduce this to 64 - we can always manipulate these later for testing of > > larger bitmaps as needed. > > > > Hmm, what's the problem with the sanitizers? Shouldn't this just result in > slightly different codegen? I'm not sure but it results in vastly longer build times. It was a fun idea but it partly defeats the point of the VMA userland tests. Rather than spend too long investigating I'd rather we move to a sane default. > > > Signed-off-by: Lorenzo Stoakes > > --- > > tools/testing/vma/Makefile | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/tools/testing/vma/Makefile b/tools/testing/vma/Makefile > > index e72b45dedda5..ef6cc558afe1 100644 > > --- a/tools/testing/vma/Makefile > > +++ b/tools/testing/vma/Makefile > > @@ -10,7 +10,7 @@ OFILES = $(SHARED_OFILES) main.o shared.o maple-shim.o > > TARGETS = vma > > > > # These can be varied to test different sizes. > > -CFLAGS += -DNUM_VMA_FLAG_BITS=128 -DNUM_MM_FLAG_BITS=128 > > +CFLAGS += -DNUM_VMA_FLAG_BITS=64 -DNUM_MM_FLAG_BITS=64 > > > > main.o: main.c shared.c shared.h vma_internal.h tests/merge.c tests/mmap.c tests/vma.c ../../../mm/vma.c ../../../mm/vma_init.c ../../../mm/vma_exec.c ../../../mm/vma.h include/custom.h include/dup.h include/stubs.h > > > > -- > > 2.54.0 > > > > -- > Pedro Thanks, Lorenzo