IPVS: ftp: loaded support on port[0] = 21
NET: Registered protocol family 30
cache_from_obj: Wrong slab cache. TIPC but object is from kmalloc-2048
WARNING: CPU: 1 PID: 18 at mm/slab.h:380 cache_from_obj mm/slab.h:378 [inline]
WARNING: CPU: 1 PID: 18 at mm/slab.h:380 cache_from_obj mm/slab.h:357 [inline]
WARNING: CPU: 1 PID: 18 at mm/slab.h:380 kmem_cache_free.cold+0x1c/0x23 mm/slab.c:3757
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.47 #19
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
kobject: 'loop0' (000000009af26933): kobject_uevent_env
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x263/0x507 kernel/panic.c:185
kobject: 'loop0' (000000009af26933): fill_kobj_path: path = '/devices/virtual/block/loop0'
 __warn.cold+0x20/0x4a kernel/panic.c:540
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x204/0x360 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:1013
RIP: 0010:cache_from_obj mm/slab.h:380 [inline]
RIP: 0010:cache_from_obj mm/slab.h:357 [inline]
RIP: 0010:kmem_cache_free.cold+0x1c/0x23 mm/slab.c:3757
Code: e8 95 ab 47 05 44 8b 6d c4 e9 74 a5 ff ff 48 8b 48 58 48 c7 c6 c0 44 54 87 48 c7 c7 78 66 38 88 49 8b 54 24 58 e8 44 3d b4 ff <0f> 0b e9 89 df ff ff 49 8b 4f 58 48 c7 c6 c0 44 54 87 48 c7 c7 78
RSP: 0018:ffff8880aa2a7ba8 EFLAGS: 00010286
RAX: 0000000000000046 RBX: ffff88809b70f700 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81559f66 RDI: ffffed1015454f67
RBP: ffff8880aa2a7bc8 R08: 0000000000000046 R09: ffffed1015d24fe9
R10: ffffed1015d24fe8 R11: ffff8880ae927f47 R12: ffff888081b170c0
R13: 0000000000000000 R14: ffff888081b170c0 R15: ffff88809b70fa10
 sk_prot_free net/core/sock.c:1504 [inline]
 __sk_destruct+0x4b4/0x6d0 net/core/sock.c:1588
Failed to register TIPC socket type
 sk_destruct+0x7b/0x90 net/core/sock.c:1596
 __sk_free+0xce/0x300 net/core/sock.c:1607
 sk_free+0x42/0x50 net/core/sock.c:1618
 sock_put include/net/sock.h:1702 [inline]
 tipc_sk_callback+0x48/0x60 net/tipc/socket.c:495
 __rcu_reclaim kernel/rcu/rcu.h:236 [inline]
 rcu_do_batch kernel/rcu/tree.c:2584 [inline]
 invoke_rcu_callbacks kernel/rcu/tree.c:2897 [inline]
 __rcu_process_callbacks kernel/rcu/tree.c:2864 [inline]
 rcu_process_callbacks+0xba0/0x1a30 kernel/rcu/tree.c:2881
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 run_ksoftirqd kernel/softirq.c:653 [inline]
 run_ksoftirqd+0x8e/0x110 kernel/softirq.c:645
 smpboot_thread_fn+0x6a3/0xa30 kernel/smpboot.c:164
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Kernel Offset: disabled
Rebooting in 86400 seconds..