From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f200.google.com (mail-oi1-f200.google.com [209.85.167.200]) (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 14B7A3B2FD8 for ; Fri, 20 Mar 2026 13:20:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774012835; cv=none; b=be3JnEM1pcUQGXEKoloTHG3T+HChO/j6Wl7NG1t2N8AlkiqMgXKtGeoSWbwuEESkA/BNYS2VTmp+luPjZBxoyhlTBS/InMjlZp7vDZ51ppjgMvsUaPwAX6xwjGmsO8QROCVh5Kif+6Wo2yZaDRSSnTqzytzLufP/BJWwYJzMD1Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774012835; c=relaxed/simple; bh=v2wT9KQYq9cz+qomMBWdqzlxSP3+nrghPBTB29nx1Ag=; h=MIME-Version:Date:Message-ID:Subject:From:To:Cc:Content-Type; b=skF2LuiMGbq9Uhi01x1rUTy9Sisa1huN7E5/G2ZH5rr2ohp/iTrbroscova0N8XxEdMWhB3jyupctA6zbPOWiPj0SQXoP1uLuKvbUq/9A5u5VlKidt8mW5z+1BGn4T1nr18Jc1L6t0xdJbP4h0bV2stM3iEJWiPgLHwZjuXNhFg= 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=209.85.167.200 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-oi1-f200.google.com with SMTP id 5614622812f47-467f7743d64so1052458b6e.2 for ; Fri, 20 Mar 2026 06:20:32 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1774012832; x=1774617632; 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=ENx0zWJUlMurY6Zrmx+cdyvTuD71/oqFHKTNUFC8UTI=; b=YGzgbSodVhxhEL11FqC+KbQZ/cNAc1A/rBvURwwd+CDa/V8q1LpAg0N3F1nt4A3UjM N7vQlgkDpSrm3AVHTblyRTadj1gUh3GUJDMK+6BR5lkiVk7NqVakVnyc2MxXTYRvfbtp Aa8olJSKaIKYKoda/4JY+kfLzDMXtY44FhpOHM70jac48S65m8rCw49isVroyryb1Rok 6U/JIvGYpv7OOVPPWrxD04x/xc8zpUlLmk46Vz5D3fynOHxZy80OSR9V0fwuxl+TCBnd xK07o5cYI/UpKos7wn2Ay4wiuOx2snaPD5qCyYEhYlKAaxmTTfp0zcz4q7tVYjO2Efhi Dvvw== X-Gm-Message-State: AOJu0YwsLL6sCN+ytk+AO5TlUUf41ncPqA7E27JIUDJAFf59GepRYV1A x8CEUiAUtFDymdGAL5pbvvD2F1oy4nc8XGXyxKQIEJKZzAU/trrJxiKkgJ3Uha5/sbWdotPZtQi bE6yU2IXYc6i3WFQrzLMSPIwod81HSEiD0mlkhZJfRemrD36rPTksaGDt1a8= Precedence: bulk X-Mailing-List: syzbot@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:181c:b0:45e:bfe0:21f2 with SMTP id 5614622812f47-467e5d57d8emr1511857b6e.10.1774012831791; Fri, 20 Mar 2026 06:20:31 -0700 (PDT) Date: Fri, 20 Mar 2026 06:20:31 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69bd499f.050a0220.3bf4de.0023.GAE@google.com> Subject: [moderation/CI] Re: mm/huge_memory: refactor zap_huge_pmd() 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/huge_memory: refactor zap_huge_pmd() https://lore.kernel.org/all/cover.1773924928.git.ljs@kernel.org * [PATCH v2 1/9] mm/huge_memory: simplify vma_is_specal_huge() * [PATCH v2 2/9] mm/huge: avoid big else branch in zap_huge_pmd() * [PATCH v2 3/9] mm/huge_memory: have zap_huge_pmd return a boolean, add kd= oc * [PATCH v2 4/9] mm/huge_memory: handle buggy PMD entry in zap_huge_pmd() * [PATCH v2 5/9] mm/huge_memory: add a common exit path to zap_huge_pmd() * [PATCH v2 6/9] mm/huge_memory: remove unnecessary VM_BUG_ON_PAGE() * [PATCH v2 7/9] mm/huge_memory: deduplicate zap deposited table call * [PATCH v2 8/9] mm/huge_memory: deduplicate zap_huge_pmd() further by trac= king state * [PATCH v2 9/9] mm/huge_memory: have zap_huge_pmd() use vm_normal_folio_pm= d() and found the following issue: kernel build error Full report is available here: https://ci.syzbot.org/series/fc789267-30ea-4c5c-8e1f-623cee399460 *** kernel build error tree: mm-new URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/akpm/mm= .git base: aa0a550d268b3075b67568d915b7093aabbb0772 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/b61f81fb-cab5-4257-8eaf-4693791b0a7= a/config mm/huge_memory.c:108:9: error: call to undeclared function 'vma_test_any'; = ISO C99 and later do not support implicit function declarations [-Wimplicit= -function-declaration] mm/huge_memory.c:4596:6: error: call to undeclared function 'vma_test'; ISO= C99 and later do not support implicit function declarations [-Wimplicit-fu= nction-declaration] *** 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 baohua@kernel.org baolin.wang@linux.alibaba.com = david@kernel.org dev.jain@arm.com lance.yang@linux.dev liam.howlett@oracle.= com linux-kernel@vger.kernel.org linux-mm@kvack.org ljs@kernel.org mhocko@s= use.com npache@redhat.com rppt@kernel.org ryan.roberts@arm.com surenb@googl= e.com vbabka@kernel.org 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