IPVS: ftp: loaded support on port[0] = 21
kernel msg: ebtables bug: please report to author: EBT_ENTRY_OR_ENTRIES shouldn't be set in distinguisher
WARNING: CPU: 1 PID: 10961 at kernel/locking/lockdep.c:704 arch_local_save_flags arch/x86/include/asm/paravirt.h:778 [inline]
WARNING: CPU: 1 PID: 10961 at kernel/locking/lockdep.c:704 look_up_lock_class kernel/locking/lockdep.c:695 [inline]
WARNING: CPU: 1 PID: 10961 at kernel/locking/lockdep.c:704 register_lock_class+0xce6/0x2650 kernel/locking/lockdep.c:754
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 10961 Comm: syz-executor2 Not tainted 4.18.0-rc1+ #90
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
 panic+0x238/0x4e7 kernel/panic.c:184
 __warn.cold.8+0x163/0x1ba kernel/panic.c:536
 report_bug+0x252/0x2d0 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:992
RIP: 0010:arch_local_save_flags arch/x86/include/asm/paravirt.h:778 [inline]
RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:695 [inline]
RIP: 0010:register_lock_class+0xce6/0x2650 kernel/locking/lockdep.c:754
Code: f9 ff ff 4c 89 ff 44 89 85 68 fc ff ff 89 8d 70 fc ff ff e8 cc 9c 5b 00 44 8b 85 68 fc ff ff 8b 8d 70 fc ff ff e9 6f f9 ff ff <0f> 0b e9 c8 f6 ff ff 48 8d 50 01 48 89 15 68 13 22 09 48 8d 14 80 
RSP: 0018:ffff880183f76e68 EFLAGS: 00010083
RAX: 0000000000000004 RBX: ffffffff8a5bdf10 RCX: 0000000000000000
RDX: ffffffff887df6e0 RSI: ffffffff886d5cc0 RDI: 1ffffffff1549364
RBP: ffff880183f77270 R08: 0000000000000000 R09: dffffc0000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff100307eeddd
R13: 0000000000000003 R14: 0000000000000000 R15: ffff8801d6c190a0
 __lock_acquire+0x1bd/0x5020 kernel/locking/lockdep.c:3323
 lock_acquire+0x1e4/0x540 kernel/locking/lockdep.c:3924
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
 _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:168
 spin_lock_bh include/linux/spinlock.h:315 [inline]
 lock_sock_nested+0x46/0x120 net/core/sock.c:2834
 lock_sock include/net/sock.h:1474 [inline]
 do_ip_setsockopt.isra.12+0x2c0/0x3e50 net/ipv4/ip_sockglue.c:643
 ip_setsockopt+0x4c/0x140 net/ipv4/ip_sockglue.c:1246
 udp_setsockopt+0x62/0xa0 net/ipv4/udp.c:2502
 sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:3040
 __sys_setsockopt+0x1c5/0x3b0 net/socket.c:1947
 __do_sys_setsockopt net/socket.c:1958 [inline]
 __se_sys_setsockopt net/socket.c:1955 [inline]
 __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1955
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455a99
Code: 1d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 
RSP: 002b:00007f0f363d7c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f0f363d86d4 RCX: 0000000000455a99
RDX: 0000000000000080 RSI: 0000000000000000 RDI: 0000000000000018
RBP: 000000000072bf48 R08: 0000000000000698 R09: 0000000000000000
R10: 00000000200007c0 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004c0ff3 R14: 00000000004d10a0 R15: 0000000000000001
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..