From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (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 C9F032C9A for ; Fri, 27 Sep 2024 04:20:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727410805; cv=none; b=ggeSYx55LpYhMeG3ic1NQqIvX9d/19tKS9VhI++3orlaz1zb/3UbT9oFDmLJFtsNUwD1EMB5ZqqrdhffyhgAUYXwaTU6/pnDTMuXUVGTrA0d58zL+PDMjLOEibY8oqJWW1b0SfddvUzhhNzvPb/6m+nE4ad69uxoZ9PZrP2OWSE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727410805; c=relaxed/simple; bh=Cz6JJs57+3dSx9DYgXYCtXzib+9rFlOY5gSdPVNNKsI=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=dPfD7IfGxfR+2Bz0J8KsgxehbMhMLf3GuPSchBk1K2bGNGo7m2lAkOJQZ3YX6/B4YIXLqJPZsLoTT9GHBAFngQbn2IfIFbdvNphWYXphJ9ILp4toTN1obaYU9z2oPxuu8kKFbY0T150kmnsfnGQZGlQdGmu6pO6fgMMO6QXTcXg= 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=209.85.166.198 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-il1-f198.google.com with SMTP id e9e14a558f8ab-3a3412ecb29so15377415ab.0 for ; Thu, 26 Sep 2024 21:20:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727410803; x=1728015603; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=CX7Ep58qCR9yJrnzmN32s4RVd+dWqpEw2O7CfZWsEYM=; b=DapzPQIbKXJeMpjS4gAk2DCJiiO21FGjIUj8ruwtDjWWpyUOm4Fk67wyt4QMp1aPuP aboWxhOji7ouEqqOS08AtKEPorDs6fScTdxc5znwb3Nbg2WyJEEdBpmaCbp2rmZFTfVd Zw0XydtgvPxdXqnHLzKz74Vkja2JPtiBsZDSHfxnObXf+pxSUfmPi+8jOpQWpgMgWCFC Dn3hCc+a4dgOl6+BYBvmDYgbCTL1w6PVBJZcVj6/w2KSV2G/XLLvz9Dv3Lf+J/oVmIY3 fc/sCjvEp2h6gN6UZcuuTKRvkkRG3SufaC762pPFnumxIk1jv/Mlvc0OGyXFKniTXISg 2Zcg== X-Forwarded-Encrypted: i=1; AJvYcCVzDFfOOcZQBlGYzn5kLr6uAK1VB9YsEYU62jgFD5LNof04oKc62NLTMe6t/3X1Jed/E4QG2P0KmCGiLyQ=@vger.kernel.org X-Gm-Message-State: AOJu0YzVrQ/yzBawZXkccJIlqZgf/JL/CWDK+uXI+jnFl5WcVx0NEJkk UltGl7/lz0jmrDabeFu46qxzqc1x+I+t6gkZQnE+zEsKJqvW2pwYVBKgpJVdWynyE2uzx8AuBlB KGOugBX4nbUotVTmbXX4iPG/18DhveQ4epMppMkIXkX/fKs18ZpKXGiY= X-Google-Smtp-Source: AGHT+IHnAeGa2fogoKQQ3xKgpkIzQPw/9IMr0+S2KhTJxzq8wBMWozCxFrIa7vtViMGq5Js3NAjz2zwOX7zugx6yV2wQyNptIizv Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:b2a:b0:3a0:98cd:3754 with SMTP id e9e14a558f8ab-3a34515569bmr17755785ab.4.1727410802883; Thu, 26 Sep 2024 21:20:02 -0700 (PDT) Date: Thu, 26 Sep 2024 21:20:02 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <66f63272.050a0220.38ace9.0009.GAE@google.com> Subject: Re: [syzbot] [mm?] WARNING in copy_huge_pmd From: syzbot To: akpm@linux-foundation.org, bp@alien8.de, dave.hansen@linux.intel.com, david@redhat.com, hpa@zytor.com, jgg@ziepe.ca, leitao@debian.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mingo@redhat.com, peterx@redhat.com, rppt@kernel.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+bf2c35fa302ebe3c7471@syzkaller.appspotmail.com Tested-by: syzbot+bf2c35fa302ebe3c7471@syzkaller.appspotmail.com Tested on: commit: 08768b86 mm/huge_memory: check pmd_special() only afte.. git tree: https://github.com/davidhildenbrand/linux.git copy_huge_pmd_pfn console output: https://syzkaller.appspot.com/x/log.txt?x=1087aaa9980000 kernel config: https://syzkaller.appspot.com/x/.config?x=bc30a30374b0753 dashboard link: https://syzkaller.appspot.com/bug?extid=bf2c35fa302ebe3c7471 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.