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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 406B3C32793 for ; Wed, 24 Aug 2022 01:02:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231165AbiHXBCi (ORCPT ); Tue, 23 Aug 2022 21:02:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54662 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229640AbiHXBCg (ORCPT ); Tue, 23 Aug 2022 21:02:36 -0400 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8C1DA86FF4 for ; Tue, 23 Aug 2022 18:02:35 -0700 (PDT) Received: by mail-io1-f72.google.com with SMTP id w7-20020a5d9607000000b0067c6030dfb8so8472163iol.10 for ; Tue, 23 Aug 2022 18:02:35 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc; bh=SA8V6FJE4OHwfldzxq2ieRP3SNYCMLDZIdmCi4W19xI=; b=kUYrMbAXUatLvgwhOzqLwBfK5j748bGxBO/Ct9lIDvszvHOo1ya4ecjZKXJoO9seAf 50rDmC0G6kVSzOJyIzo2oUBxZseZfpD9OmjPcb8kEU9KSEGw8V/oBJdMcJvLYbbizPcW IBl9cH1sA5JnhtZH08Y5tRGIJ6mHxe2p+pjZM9p/sVVUUlucvMB+VIe6ktO38U8xOghY xy3yfzy9pEtc1oY6HC6rbE2S/8lD5OhtRYohqqY8GuBnLtcQi8VA295EZPSlDqbD3UNG NXyL2OtabGeWYoBBrZbzc0THp095nQPBvNh8e0YHmoUZCENDO0/W59pdNdf4IQmlPCEL Vs1g== X-Gm-Message-State: ACgBeo2gLaM7SGFtPKxzyPHLSFXHz9DBygK0Tgp7unN8MQ0B9SWKz5ri slzpBf8CICK0wmV1M9tSRE74Jmh58acS9iqThA7jDk8pWvTh X-Google-Smtp-Source: AA6agR6IJ8T6DvHiwgiJ7ZXB1RnxVxOeAenNs+p1YW01lAQCSCQsxiZNVIfoAo83ZIPY6PTfaDDa5V24cZXihXRseIqIGX5sH6Tj MIME-Version: 1.0 X-Received: by 2002:a92:6903:0:b0:2e5:8f47:22e0 with SMTP id e3-20020a926903000000b002e58f4722e0mr1040920ilc.97.1661302954887; Tue, 23 Aug 2022 18:02:34 -0700 (PDT) Date: Tue, 23 Aug 2022 18:02:34 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000007d901905e6f23c23@google.com> Subject: [syzbot] WARNING: CPU: NUM PID: NUM at mm/huge_memory.c:LINE split_huge_page_to_l From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 680fb5b009e8 Merge tag 'arm64-upstream' into for-kernelci git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=13d186a5080000 kernel config: https://syzkaller.appspot.com/x/.config?x=4557ad2600fc45f4 dashboard link: https://syzkaller.appspot.com/bug?extid=2184d61af7d9d86337fc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13c0bffd080000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1217ce8d080000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+2184d61af7d9d86337fc@syzkaller.appspotmail.com raw: 05ffc00000010801 0000000000000000 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000000000 00000002ffffffff 0000000000000000 page dumped because: VM_WARN_ON_ONCE_PAGE(is_hzp) ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3026 at mm/huge_memory.c:2555 split_huge_page_to_l --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches