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 X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6DCE3C433E2 for ; Sat, 5 Sep 2020 10:19:19 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D3BC920757 for ; Sat, 5 Sep 2020 10:19:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D3BC920757 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id DC5026B0003; Sat, 5 Sep 2020 06:19:17 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D74EB6B0037; Sat, 5 Sep 2020 06:19:17 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C8B536B0055; Sat, 5 Sep 2020 06:19:17 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0144.hostedemail.com [216.40.44.144]) by kanga.kvack.org (Postfix) with ESMTP id B0F836B0003 for ; Sat, 5 Sep 2020 06:19:17 -0400 (EDT) Received: from smtpin27.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 6CF61824805A for ; Sat, 5 Sep 2020 10:19:17 +0000 (UTC) X-FDA: 77228610354.27.tin59_0917936270ba Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin27.hostedemail.com (Postfix) with ESMTP id 3DE213D669 for ; Sat, 5 Sep 2020 10:19:17 +0000 (UTC) X-HE-Tag: tin59_0917936270ba X-Filterd-Recvd-Size: 4957 Received: from mail-il1-f208.google.com (mail-il1-f208.google.com [209.85.166.208]) by imf19.hostedemail.com (Postfix) with ESMTP for ; Sat, 5 Sep 2020 10:19:16 +0000 (UTC) Received: by mail-il1-f208.google.com with SMTP id o2so4119465ilg.10 for ; Sat, 05 Sep 2020 03:19:16 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=GWAPgDl1Yp+MfyidDl3LA075MQZh10s6UdDj+bD6ovY=; b=kskGhnfiX1lMugX0VltYfQD7vKGnoLILXEnxbHOgO9ZmrrOcSxwGpIZAh3K2azN3dE PLakEUOst9XYqSB83DHDz00NvL0zV0vxOcq+Pzn1ecmFKWqsf7mPtfgpiIyPXg3Upuf0 561+f+/Hp4zZofxyTeqiREXRNFdZd2Bpc0X6HFeuzs40jzMoOOYCvndvpDD0bZmkeJaT lp1I+SL2P8119yIdIdFhjST4yanggMZcVCMhHnnUO8ku/k0JBqP7hvBiTa5v6a4hmPYL TVXRNMy28UPyf3QPqkVUmKAhm6bca34/VWP8/SMYKJT4CTVc2+TV1EmSUyqZ0VupYCdy DRxw== X-Gm-Message-State: AOAM530SgIHrvVBw8mRLIyq2phWkej7hrpdTbLvBLJM9Nn2tVdW6y+FW bq8Y0IQIY5fatEYryvGkllaQkGS0VRrkpTenLm11WXb92D8V X-Google-Smtp-Source: ABdhPJwv+ztP8SU4QKZLmiry/mgsvq5+A6E0DaTBE+e8UOTh9rljjXQoMn+E+sb7S0OoX/BAPLHIPFpL/WYaQbk0Q5trh1MhAXor MIME-Version: 1.0 X-Received: by 2002:a02:c8c8:: with SMTP id q8mr11605456jao.46.1599301156234; Sat, 05 Sep 2020 03:19:16 -0700 (PDT) Date: Sat, 05 Sep 2020 03:19:16 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004e6a0b05ae8e5179@google.com> Subject: INFO: trying to register non-static key in unmap_page_range 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" X-Rspamd-Queue-Id: 3DE213D669 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam03 X-Bogosity: Ham, tests=bogofilter, spamicity=0.406550, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hello, syzbot found the following issue on: HEAD commit: b51594df Merge tag 'docs-5.9-3' of git://git.lwn.net/linux git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=148e7656900000 kernel config: https://syzkaller.appspot.com/x/.config?x=3c5f6ce8d5b68299 dashboard link: https://syzkaller.appspot.com/bug?extid=1c2be5d844dee3f85c32 compiler: gcc (GCC) 10.1.0-syz 20200507 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+1c2be5d844dee3f85c32@syzkaller.appspotmail.com INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 0 PID: 21186 Comm: syz-executor.1 Not tainted 5.9.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x198/0x1fd lib/dump_stack.c:118 assign_lock_key kernel/locking/lockdep.c:894 [inline] register_lock_class+0x157d/0x1630 kernel/locking/lockdep.c:1206 __lock_acquire+0xf9/0x5570 kernel/locking/lockdep.c:4305 lock_acquire+0x1f3/0xae0 kernel/locking/lockdep.c:5006 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] zap_pte_range mm/memory.c:1049 [inline] zap_pmd_range mm/memory.c:1195 [inline] zap_pud_range mm/memory.c:1224 [inline] zap_p4d_range mm/memory.c:1245 [inline] unmap_page_range+0xa74/0x2b20 mm/memory.c:1266 unmap_single_vma+0x198/0x300 mm/memory.c:1311 unmap_vmas+0x168/0x2e0 mm/memory.c:1343 exit_mmap+0x2b1/0x530 mm/mmap.c:3183 __mmput+0x122/0x470 kernel/fork.c:1076 mmput+0x53/0x60 kernel/fork.c:1097 exit_mm kernel/exit.c:483 [inline] do_exit+0xa8b/0x29f0 kernel/exit.c:793 do_group_exit+0x125/0x310 kernel/exit.c:903 get_signal+0x428/0x1f00 kernel/signal.c:2757 arch_do_signal+0x82/0x2520 arch/x86/kernel/signal.c:811 exit_to_user_mode_loop kernel/entry/common.c:136 [inline] exit_to_user_mode_prepare+0x1ae/0x200 kernel/entry/common.c:167 syscall_exit_to_user_mode+0x7e/0x2e0 kernel/entry/common.c:242 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d5b9 Code: Bad RIP value. RSP: 002b:00007ff293e13c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: 0000000000001000 RBX: 0000000000038900 RCX: 000000000045d5b9 RDX: 0000000000001058 RSI: 0000000020001440 RDI: 0000000000000004 RBP: 000000000118d020 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cfec R13: 000000000169fb6f R14: 00007ff293e149c0 R15: 000000000118cfec --- 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.