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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B5BB7C433F5 for ; Sat, 23 Oct 2021 17:15:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 99ED360FD9 for ; Sat, 23 Oct 2021 17:15:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230142AbhJWRRo (ORCPT ); Sat, 23 Oct 2021 13:17:44 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:44989 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230051AbhJWRRo (ORCPT ); Sat, 23 Oct 2021 13:17:44 -0400 Received: by mail-il1-f199.google.com with SMTP id k11-20020a92c24b000000b00259faad3693so3454930ilo.11 for ; Sat, 23 Oct 2021 10:15:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=DV/MOHQ2co/CAzFUt/mzNaZB34djLqxLLJWPVD/n/f0=; b=HaNYVWLTJcplNWZymnunhbIjlH3TDw++fvhnzykblTPUY0393erCAEjef/NB47+06+ nE8XjxSLNOZkA6D+End6w1rcgZXQx5blPm1nXEvKPhtwMIbDsRhVdhwCTbMf4cjHENyA pw1LFuuwvR8TPJ3QdgdlK3mCtov/oY0+8cgYwdS3YcVdpTvv4fdiyzRGLNL230oQ8WDy NBx3v6K2ptPf38tFAcz8j3R2XzQemSh4J9ECuKSZhVCjMejgz4bHNyP4SM0VrjUQzVxm GdDjkljQFX488OmxRlhRbr4dYj1OpN/XYpLuPLrvirwcI8XLrFMrPIvtA3vScUkJALcA xX7w== X-Gm-Message-State: AOAM532aRhmE1vK5M1c1AeywVpKDC/XT+yQnFw+QagdDwdGIemCBJMP+ ZnyyAHEhr1LE8GiYWCaJUAsFOhlGTsFrg7HUhUbg/MlsOGpc X-Google-Smtp-Source: ABdhPJxQiYdY2Ge3I/CZfGVj3hnnOQjjvPSuufHe16qPTseoy5wI1aATM1VWW/22Eq+2N2YbFstqGS+qVn2UxowoJ8oGzlNIKaux MIME-Version: 1.0 X-Received: by 2002:a05:6e02:13e2:: with SMTP id w2mr4236775ilj.110.1635009324846; Sat, 23 Oct 2021 10:15:24 -0700 (PDT) Date: Sat, 23 Oct 2021 10:15:24 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000003129805cf0846c0@google.com> Subject: [syzbot] WARNING in cleanup_srcu_struct (3) From: syzbot To: axboe@kernel.dk, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 519d81956ee2 Linux 5.15-rc6 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1003f734b00000 kernel config: https://syzkaller.appspot.com/x/.config?x=d95853dad8472c91 dashboard link: https://syzkaller.appspot.com/bug?extid=86a4d699d56e1efda543 compiler: Debian clang version 11.0.1-2, GNU ld (GNU Binutils for Debian) 2.35.2 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+86a4d699d56e1efda543@syzkaller.appspotmail.com WARNING: CPU: 0 PID: 484 at lib/debugobjects.c:508 debug_print_object lib/debugobjects.c:505 [inline] WARNING: CPU: 0 PID: 484 at lib/debugobjects.c:508 debug_object_assert_init+0x1fa/0x250 lib/debugobjects.c:895 Modules linked in: CPU: 0 PID: 484 Comm: syz-executor.3 Not tainted 5.15.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:debug_print_object lib/debugobjects.c:505 [inline] RIP: 0010:debug_object_assert_init+0x1fa/0x250 lib/debugobjects.c:895 Code: e8 2b 16 b8 fd 4c 8b 45 00 48 c7 c7 a0 2f b4 8a 48 c7 c6 00 2c b4 8a 48 c7 c2 e0 31 b4 8a 31 c9 49 89 d9 31 c0 e8 b6 c7 36 fd <0f> 0b ff 05 7a 59 c5 09 48 83 c5 38 48 89 e8 48 c1 e8 03 42 80 3c RSP: 0018:ffffc90012ae6e78 EFLAGS: 00010246 RAX: 4660acffeccb0800 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc90010531000 RSI: 000000000000a7fa RDI: 000000000000a7fb RBP: ffffffff8a512d00 R08: ffffffff81693402 R09: ffffed10173857a8 R10: ffffed10173857a8 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8880b9c00110 R14: 0000000000000003 R15: ffffffff90c0a0a0 FS: 00007f5227fd9700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555c92708 CR3: 000000008b078000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: debug_timer_assert_init kernel/time/timer.c:739 [inline] debug_assert_init kernel/time/timer.c:784 [inline] try_to_del_timer_sync+0xa5/0x3c0 kernel/time/timer.c:1229 del_timer_sync+0x238/0x2f0 kernel/time/timer.c:1382 cleanup_srcu_struct+0x2ca/0x580 kernel/rcu/srcutree.c:379 blk_mq_hw_sysfs_release+0x6c/0x130 block/blk-mq-sysfs.c:40 kobject_cleanup+0x1c0/0x280 lib/kobject.c:705 blk_mq_release+0x255/0x2d0 block/blk-mq.c:3101 blk_release_queue+0x306/0x420 block/blk-sysfs.c:823 kobject_cleanup+0x1c0/0x280 lib/kobject.c:705 __blk_mq_alloc_disk+0x101/0x150 block/blk-mq.c:3149 nbd_dev_add+0x34d/0x940 drivers/block/nbd.c:1721 nbd_genl_connect+0xa66/0x1f50 drivers/block/nbd.c:1889 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline] genl_family_rcv_msg net/netlink/genetlink.c:775 [inline] genl_rcv_msg+0x1032/0x1480 net/netlink/genetlink.c:792 netlink_rcv_skb+0x200/0x470 net/netlink/af_netlink.c:2510 genl_rcv+0x24/0x40 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x814/0x9f0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0xa29/0xe50 net/netlink/af_netlink.c:1935 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0x5b9/0x910 net/socket.c:2409 ___sys_sendmsg net/socket.c:2463 [inline] __sys_sendmsg+0x36f/0x450 net/socket.c:2492 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f522aa84a39 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5227fd9188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f522ab88020 RCX: 00007f522aa84a39 RDX: 0000000000000000 RSI: 0000000020000700 RDI: 0000000000000004 RBP: 00007f522aadec5f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe58c753ff R14: 00007f5227fd9300 R15: 0000000000022000 --- 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.