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 9E52EC7EE23 for ; Mon, 29 May 2023 14:32:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229728AbjE2Obf (ORCPT ); Mon, 29 May 2023 10:31:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36808 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229478AbjE2ObO (ORCPT ); Mon, 29 May 2023 10:31:14 -0400 Received: from mail-il1-f207.google.com (mail-il1-f207.google.com [209.85.166.207]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CC2A4A0 for ; Mon, 29 May 2023 07:31:12 -0700 (PDT) Received: by mail-il1-f207.google.com with SMTP id e9e14a558f8ab-33832662ba5so44152325ab.3 for ; Mon, 29 May 2023 07:31:12 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685370672; x=1687962672; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=kcy6OuZtdRNwc/jzZDtZWOVoC4LwS2/1EIUPcPzZysk=; b=SqQzXpO1+1tdOlc1ux1rDNg+Rs7lFQyr8tS02Zo4qEtpor2F31q/+vMRQCpVwPSYMF OpZ2hreh0ZDAxmxqX8SrKLPt3kgYHWIPFgCcKUIKq3Qia67Zww25weeMsGryPc45fZMT +TatEAFDgowtLCjpraa1omgRXzQvRSNeF3rSSpEsFamxD6Itaa6NSktInbeY5QX3N60h T5w2LELf1Dj9XxWwZVchgubBnzM7l6s7SUL9E3Ud0Ed7ekU9QedKWuiPIOInXbpvX58A ez0K8Yu9s6OznsgK7zI8KbUrbR/B0D0WMxcHZS3gtj4rS+IpDOJ3TDsBb8aKHWXd2ZFH jYMA== X-Gm-Message-State: AC+VfDweHPQj8nwQ6bz3VHZdXJaK2k0YqQmJAvFyJNaTx1PfeflX19Hc CwJ8Vm3JmPTuNbIgTpXmjhIjLBdkvTDYcp8kPUGuBj8pNNa70BH/pw== X-Google-Smtp-Source: ACHHUZ7lqWN311dhhLfep6MLf69vWKCEyseYLBgHu90x/JmTpUCVg23pab3eJziJ+Bbe0EcCDycv6evADt9GUBH7HP4FQQd7dxQv MIME-Version: 1.0 X-Received: by 2002:a92:d392:0:b0:331:2a69:96f9 with SMTP id o18-20020a92d392000000b003312a6996f9mr3156984ilo.2.1685370672129; Mon, 29 May 2023 07:31:12 -0700 (PDT) Date: Mon, 29 May 2023 07:31:12 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000003a2f8505fcd5f06b@google.com> Subject: [syzbot] [kernel?] WARNING: ODEBUG bug in __mod_timer From: syzbot To: linux-kernel@vger.kernel.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: 44bf136283e5 Add linux-next specific files for 20230420 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=1026a757c80000 kernel config: https://syzkaller.appspot.com/x/.config?x=ba413c0527139246 dashboard link: https://syzkaller.appspot.com/bug?extid=7937ba6a50bdd00fffdf compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/db069eb0e403/disk-44bf1362.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/9f9f4ca6cfb8/vmlinux-44bf1362.xz kernel image: https://storage.googleapis.com/syzbot-assets/e53d01b894f7/bzImage-44bf1362.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+7937ba6a50bdd00fffdf@syzkaller.appspotmail.com WARNING: CPU: 1 PID: 5171 at lib/debugobjects.c:505 debug_print_object+0x194/0x2c0 lib/debugobjects.c:505 Modules linked in: CPU: 1 PID: 5171 Comm: kworker/1:5 Not tainted 6.3.0-rc7-next-20230420-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 Workqueue: rcu_gp wait_rcu_exp_gp RIP: 0010:debug_print_object+0x194/0x2c0 lib/debugobjects.c:505 Code: df 48 89 fe 48 c1 ee 03 80 3c 16 00 0f 85 c7 00 00 00 48 8b 14 dd c0 0f a7 8a 50 4c 89 ee 48 c7 c7 80 03 a7 8a e8 7c ec 35 fd <0f> 0b 58 83 05 86 75 63 0a 01 48 83 c4 20 5b 5d 41 5c 41 5d 41 5e RSP: 0018:ffffc900056af890 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 RDX: ffff88801e71d7c0 RSI: ffffffff814be0c7 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8a4ecb40 R13: ffffffff8aa70a60 R14: ffffc900056af950 R15: ffffffff817267d0 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020404030 CR3: 000000002bc8b000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: debug_object_assert_init+0x20f/0x310 lib/debugobjects.c:912 debug_timer_assert_init kernel/time/timer.c:792 [inline] debug_assert_init kernel/time/timer.c:837 [inline] __mod_timer+0x9b/0xe80 kernel/time/timer.c:1020 schedule_timeout+0x149/0x2b0 kernel/time/timer.c:2166 synchronize_rcu_expedited_wait_once kernel/rcu/tree_exp.h:572 [inline] synchronize_rcu_expedited_wait kernel/rcu/tree_exp.h:624 [inline] rcu_exp_wait_wake+0x2ae/0x1550 kernel/rcu/tree_exp.h:693 process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552 kthread+0x33e/0x440 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 --- 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. If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to change bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup