From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi2-f4.google.com (mail-oi2-f4.google.com [74.125.231.196]) (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 200042AD37 for ; Sat, 22 Aug 2026 00:11:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.231.196 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787357493; cv=none; b=o97PsuSVDUOXTnQeRfRhdIK8fBJIuRsi7YY40vLO1agHHvJ0O+7xWUWDJCXccbDZv1b2ngVIEZvLG55Nv7LkUI0k+VgEYNSyTwAruzaokuBKbB2m1htBKUPSZjwWopHgk4DaHXD1g8COnU3UbVyEPSrz9u5szCaqqnfCmxWuACk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787357493; c=relaxed/simple; bh=N0D/teIsmZ7fW/EZu9+ia+BVEim+zssLdeSW8iNRk0M=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=EQJ3MGb/cK1+b3LPvznrr2q8M05JoRPrjTo58mq7KLMyV98TVAl7FumQLfTLenvCpr05W/zZH1upBLMovHMha6+U0LIKdl0g4OJ9WbL/jbzkb+qlo/fxMPKZqVG8eWQyY879YtrpgEas0cNXOMtv//EaDVz5R2BKlZK3eKkp2Uo= 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=74.125.231.196 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-oi2-f4.google.com with SMTP id 5614622812f47-4ab2d8e7e4cso477651b6e.1 for ; Fri, 21 Aug 2026 17:11:31 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1787357491; x=1787962291; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=MHY+GG1XMj8jOyI2nQEJSmbDvkuJ4F4JEIj+l5769w8=; b=I4I4vwWlCsStOIuJLJeCR1LMVnSz7tbfqIcOBYDaMKyQhsWEkYW6wUQnXQKFP9kXtE PvTehUrmFSeeSqnehQMGgkf6cqrEHOoFRwuadQqHt/R1gcYEqqyZg2hrv+Ux0E1A3/xg aIiSyHcneCfLAWAtdwcw2w4Cy/+sfuFrXOogJ7a2aeMMxxe384cnAIrJFYQSxaWlPYq5 ZqSkaKB19TJXUUPaa3FUSxu/qqsUiYAkDz97vNrZcH4B2fCFyCBfIcyEhgpwpn8BrXEs KUdVQ26qQeUiBFdPafZQYvkFeb+Y+C/fugWDhLoML5Oytt7g1G450qytUDaNfXvPlXDv EJ+A== X-Forwarded-Encrypted: i=1; AHgh+Rqm6PHfTy+ce1Ip8yanCdiUFNeeU4C/+39S5JpzK+Q8+RrUHTiV5d1O+OZOTK6VgH5SXzexHQNSuQltnMc=@vger.kernel.org X-Gm-Message-State: AFuF++kf25CqvDsxfknmLotTZ81OjecL6YBYRC5S86uCwPvpuUZDxQnG joCtyA4wj15GuX1r1s0VN+o7+x1wh51P251aRjd6u3rjmJEYv0NaWTeqPvhXUtKHeKiM4tIcbPq wuU4nbKM7WBgHbf0pVa1+S/y3C1I91DFq7qva2YHB8tp92amWkPnHy0dwqr0= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:1c08:b0:4ab:32ea:95f6 with SMTP id 5614622812f47-4b2ef3b0a4dmr11966986b6e.13.1787357491091; Fri, 21 Aug 2026 17:11:31 -0700 (PDT) Date: Fri, 21 Aug 2026 17:11:31 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a88e933.ae6ddae5.3da009.0046.GAE@google.com> Subject: [syzbot] [virt?] INFO: trying to register non-static key in stats_request (2) From: syzbot To: david@kernel.org, eperezma@redhat.com, jasowangio@gmail.com, linux-kernel@vger.kernel.org, mst@redhat.com, syzkaller-bugs@googlegroups.com, virtualization@lists.linux.dev, xuanzhuo@linux.alibaba.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 8d3ae59288f1 Linux 7.2 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10240679580000 kernel config: https://syzkaller.appspot.com/x/.config?x=4c9eb8e593cf8c5c dashboard link: https://syzkaller.appspot.com/bug?extid=13df72e0dc4be5c62215 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/cd49b631c498/disk-8d3ae592.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/05d3ad83c130/vmlinux-8d3ae592.xz kernel image: https://storage.googleapis.com/syzbot-assets/3a2efa4a6769/bzImage-8d3ae592.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+13df72e0dc4be5c62215@syzkaller.appspotmail.com INFO: trying to register non-static key. The code is fine but needs lockdep annotation, or maybe you didn't initialize this object before use? turning off the locking correctness validator. CPU: 0 UID: 0 PID: 20235 Comm: irq/10-virtio2 Tainted: G L syzkaller #0 PREEMPT_{RT,(full)} Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984 register_lock_class+0xcc/0x2e0 kernel/locking/lockdep.c:1299 __lock_acquire+0xab/0x2ce0 kernel/locking/lockdep.c:5112 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868 rt_spin_lock+0x83/0x400 kernel/locking/spinlock_rt.c:56 spin_lock include/linux/spinlock_rt.h:45 [inline] start_wakeup_event drivers/virtio/virtio_balloon.c:150 [inline] stats_request+0xa5/0x1f0 drivers/virtio/virtio_balloon.c:435 vring_interrupt+0x408/0x680 drivers/virtio/virtio_ring.c:3297 vp_vring_interrupt drivers/virtio/virtio_pci_common.c:92 [inline] vp_interrupt+0x183/0x200 drivers/virtio/virtio_pci_common.c:123 irq_thread_fn kernel/irq/manage.c:1143 [inline] irq_forced_thread_fn+0x98/0x120 kernel/irq/manage.c:1165 irq_thread+0x455/0x690 kernel/irq/manage.c:1271 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 --- 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 report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup