From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f72.google.com (mail-oo1-f72.google.com [209.85.161.72]) (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 43810290DBB for ; Mon, 16 Mar 2026 15:16:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773674204; cv=none; b=hlbEnY4hvYobm8RifT/yiEO7DqmQwjGNHfAbW0mor6TJWAC1mo46+B6Y78rtL6DiSh+rVcI60I2XC7VqAqB6tqwQDnY74tWeB6D1wBkFQN0zMsj+j4AgYqhc5KM2MSpw5/4r6HzLI0WmxjMHB+/x537mgDfjcVyoeJ0rPX6pbEs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773674204; c=relaxed/simple; bh=3EC3r9LUIld1pC0ORzJyq7rt1oIL3Qj3QoPvW5lCmJE=; h=MIME-Version:Date:Message-ID:Subject:From:To:Cc:Content-Type; b=q2MdQttpw/4hNQ4L1Co5de5zR8zg0rOHltvkjnf07lFovaR4QA1hTSe/lK02esVq3XWDLGr5+Jw4wPlh0Jdm7bEDdQ8wlYMv5/jUR5RtaaO1ldHm6wWH/sdcdYZB8CnDdc8SUlybRxtXAXDQicq66hH+hNMARUm5NA2mZTtjxdQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.161.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oo1-f72.google.com with SMTP id 006d021491bc7-67bbb4e5f24so41770130eaf.0 for ; Mon, 16 Mar 2026 08:16:43 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773674202; x=1774279002; h=content-transfer-encoding:cc:to:from:subject:message-id:date :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Bb6LXmm9hjJoilXhnKhBpoQja7ncxOWMVzHr6SOcaqU=; b=IWRt8furthm0vLr/Si7O1b4kMsOHili8n5xGCLOrUPApu5bLhhHGTL6klFQGF5zZQp eWqO+oZsGvXBvTQcjevj9Axdd404YukEga2EprjukaYhgLpGkbRkMh00vXcSuggQuHZd sCAYY3mYnNoBXhXkoYlVTSIDodEdPafZbE3yUyBBq4LvjykPDppt1M3ibxH67fAfjXSw TIzTSAXPAAuI2jdOO2O9fER7Jj5PsljtCi7I5ofBSfbK9EKyion110gjKUao1y5MVz1+ krfVI3FAMV9xtu/Egj651AE4DHOmmi/s3e2udPxHmVq9DfGBWrh/rq9Jw8pR5u3SMB0F znEw== X-Gm-Message-State: AOJu0Yz8zHKHpOcvj9XeFVoPWZeWE0vRjNLcgjyWu2oQcH17CMx97dSu JYL4taL1gIV2FvRvQ/FvEZF+gDznSh4S0u1ztr+eyZXBPlOVVHTn8HF/HL9bnwy3JMAscWL4FrI cz0aj/j6ymVqeLiX9vZQzPZqUjYifXlQzA4dUMhkdjL4bMYzdb79zqidisk4= Precedence: bulk X-Mailing-List: syzbot@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:60e:b0:67b:c844:59e with SMTP id 006d021491bc7-67bdaa4c4b6mr8722379eaf.48.1773674202253; Mon, 16 Mar 2026 08:16:42 -0700 (PDT) Date: Mon, 16 Mar 2026 08:16:42 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69b81eda.050a0220.12d28.0163.GAE@google.com> Subject: [moderation/CI] Re: mm: Free contiguous order-0 pages efficiently From: syzbot ci To: syzkaller-upstream-moderation@googlegroups.com Cc: syzbot@lists.linux.dev Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable syzbot ci has tested the following series [v2] mm: Free contiguous order-0 pages efficiently https://lore.kernel.org/all/20260316113209.945853-1-usama.anjum@arm.com * [PATCH v2 1/3] mm/page_alloc: Optimize free_contig_range() * [PATCH v2 2/3] vmalloc: Optimize vfree * [PATCH v2 3/3] mm/page_alloc: Optimize __free_contig_frozen_range() and found the following issue: kernel build error Full report is available here: https://ci.syzbot.org/series/3821b2d3-8f85-4386-ad92-522a3f20be8a *** kernel build error tree: mm-new URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/akpm/mm= .git base: c5a81ff6071bcf42531426e6336b5cc424df6e3d arch: amd64 compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp= 1~20251221153213.50), Debian LLD 21.1.8 config: https://ci.syzbot.org/builds/e21a9615-d268-47cb-9b35-9882a0513fe= d/config mm/page_alloc.c:6810:11: error: call to '__compiletime_assert_1660' declare= d with 'error' attribute: min(order, ( __builtin_constant_p(nr_pages) ? ((n= r_pages) < 2 ? 0 : 63 - __builtin_clzll(nr_pages)) : (sizeof(nr_pages) <=3D= 4) ? __ilog2_u32(nr_pages) : __ilog2_u64(nr_pages) )) signedness error *** If these findings have caused you to resend the series or submit a separate fix, please add the following tag to your commit message: Tested-by: syzbot@syzkaller.appspotmail.com --- This report is generated by a bot. It may contain errors. syzbot ci engineers can be reached at syzkaller@googlegroups.com. The email will later be sent to: [akpm@linux-foundation.org bpf@vger.kernel.org david.hildenbrand@arm.com da= vid@kernel.org dsterba@suse.com hannes@cmpxchg.org jackmanb@google.com liam= .howlett@oracle.com linux-kernel@vger.kernel.org linux-mm@kvack.org ljs@ker= nel.org mhocko@suse.com rppt@kernel.org ryan.roberts@arm.com surenb@google.= com terrelln@fb.com urezki@gmail.com usama.anjum@arm.com vbabka@kernel.org = vishal.moola@gmail.com ziy@nvidia.com] If the report looks fine to you, reply with: #syz upstream If the report is a false positive, reply with #syz invalid