WARNING in rollback_registered

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	WARNING in rollback_registered_many (2) usb staging	-1	C			29034	2527d	2815d	0/29	closed as invalid on 2019/08/22 13:08

device bridge_slave_0 left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state bond2 (unregistering): Released all slaves bond1 (unregistering): Released all slaves bond0 (unregistering): Released all slaves WARNING: CPU: 0 PID: 8188 at net/core/dev.c:7973 rollback_registered_many+0xe8b/0x1210 net/core/dev.c:7973 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 8188 Comm: kworker/u4:7 Not tainted 4.19.0-rc5+ #237 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 panic+0x238/0x4e7 kernel/panic.c:184 __warn.cold.8+0x163/0x1ba kernel/panic.c:536 report_bug+0x254/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:993 RIP: 0010:rollback_registered_many+0xe8b/0x1210 net/core/dev.c:7973 Code: 28 19 00 00 48 c7 c6 40 4b 98 88 48 c7 c7 e0 4c 98 88 c6 05 a2 18 e3 03 01 e8 d1 ec 3c fb 0f 0b e9 e5 f9 ff ff e8 c5 f9 72 fb <0f> 0b e9 ba f9 ff ff e8 b9 f9 72 fb 0f 0b e9 29 fa ff ff e8 ad f9 RSP: 0018:ffff88019bfff058 EFLAGS: 00010293 RAX: ffff8801c0ab4280 RBX: ffff880198570700 RCX: ffffffff860bb573 RDX: 0000000000000000 RSI: ffffffff860bbbbb RDI: 0000000000000001 RBP: ffff88019bfff2a0 R08: ffff8801c0ab4280 R09: fffffbfff139a628 R10: fffffbfff139a628 R11: ffffffff89cd3147 R12: dffffc0000000000 R13: 0000000000000001 R14: ffffffff84801f50 R15: ffff88019bfff138 unregister_netdevice_many+0xfa/0x4c0 net/core/dev.c:9058 default_device_exit_batch+0x43a/0x540 net/core/dev.c:9527 ops_exit_list.isra.7+0x105/0x160 net/core/net_namespace.c:156 cleanup_net+0x555/0xb10 net/core/net_namespace.c:551 process_one_work+0xc90/0x1b90 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 Kernel Offset: disabled Rebooting in 86400 seconds..