From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta1.migadu.com (out-25.mta1.migadu.com [95.215.58.25]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 968B83F6C3B for ; Thu, 8 Oct 2026 07:31:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.25 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791444678; cv=none; b=us3pmaDbtqHI6GDsEt9ZPgxtG9OVaOngrBNRV49VytGr5i81MqXzsZjhTkd5YkpqDM24jGwMBD26dw7x9kMEo66IDRjXvfi06/tXqWxy0KpGwNBHrKbKcgDxsBS6EAh6ZQbZERTY4QUdWlgOHcuTCv7dYGaVEw1//0a17vWvOEQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791444678; c=relaxed/simple; bh=JEx2OLckwemutil/MN151E8aEqCJockn3ZT2A2YL1GI=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=J9NAV+EGZ7H5ieEIL1d+dXEyrhbpRuDL303u7kXDsgDsB80gUpbfO6wYYKKdJMG67FqHGbLFRTk724R265sAjPA8OZr8MncOVuLqo8DtPbijpFBm9cUt+/TYogyOcCSji+a4OkDz7ozDkIGURRKBJguCLmEjQ3n89Bcn01hPTFo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=SvdQLdlm; arc=none smtp.client-ip=95.215.58.25 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="SvdQLdlm" X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=JEx2OLckwemutil/MN151E8aEqCJockn3ZT2A2YL1GI=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1791444668; v=1; x=1792049468; b=SvdQLdlmjfOSkkKc+vEMfA3TnDMTTpuRBGosa9xoewYqU7OPlc+R54cHuhuLwSweZUcjdJHZ kmiYb0Kq36M+If4bAB9Pl78K12cQTH8z6zPiqc09Wnlh4swJvLmOU/qGQPp1uaYuW9CxRtSPrlu jfYkGRZb4MUNI6xm/kCX4kvE= X-Envelope-To: linux-kernel@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id 0f9abccb4081472f; Thu, 08 Oct 2026 07:31:07 +0000 X-Mizu-Trace-ID: 0f9abccb4081472f X-Migadu-Flow: FLOW_OUT Message-ID: <85b3725a-6dde-4a57-b303-4ae2b53b60a5@linux.dev> Date: Thu, 8 Oct 2026 15:30:49 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 16/19] selftests/mm: add khugepaged race harness To: Kiryl Shutsemau Cc: Andrew Morton , "David Hildenbrand (Arm)" , "Lorenzo Stoakes (ARM)" , Mike Rapoport , Baolin Wang , "Kiryl Shutsemau (Meta)" , linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Muhammad Usama Anjum , Usama Arif , "Nico Pache (Red Hat)" , Zi Yan , Barry Song , Dev Jain , Hugh Dickins , Lance Yang , "Liam R. Howlett" , Michal Hocko , Ryan Roberts , Shuah Khan , Suren Baghdasaryan , "Vlastimil Babka (SUSE)" , Alexander Gordeev , Jason Gunthorpe , Leon Romanovsky , kernel-team@meta.com References: <20260919002451.496763-1-kirill@shutemov.name> <20260919002451.496763-17-kirill@shutemov.name> Content-Language: en-US From: Zenghui Yu In-Reply-To: <20260919002451.496763-17-kirill@shutemov.name> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 9/19/26 8:24 AM, Kiryl Shutsemau wrote: > + } else { /* madvise */ > + while (now_ms() < end_ms && !corrupted) { > + for (i = 0; i < nr_shared_areas; i++) { > + madvise(region + i * hpage_pmd_size, > + hpage_pmd_size, MADV_COLLAPSE); I got the following error when compiling it: khugepaged_race.c: In function ‘main’: khugepaged_race.c:506:23: error: ‘MADV_COLLAPSE’ undeclared (first use in this function); did you mean ‘MADV_COLD’? 506 | hpage_pmd_size, MADV_COLLAPSE); | ^~~~~~~~~~~~~ | MADV_COLD khugepaged_race.c:506:23: note: each undeclared identifier is reported only once for each function it appears in make: *** [../lib.mk:225: /data/code/mm/tools/testing/selftests/mm/khugepaged_race] Error 1 Thanks, Zenghui