WARNING: CPU: 0 PID: 2975 at net/batman-adv/multicast.c:371 batadv_mcast_mla_tt_add net/batman-adv/multicast.c:371 [inline]
WARNING: CPU: 0 PID: 2975 at net/batman-adv/multicast.c:371 __batadv_mcast_mla_update net/batman-adv/multicast.c:636 [inline]
WARNING: CPU: 0 PID: 2975 at net/batman-adv/multicast.c:371 batadv_mcast_mla_update+0x20ed/0x2980 net/batman-adv/multicast.c:661
kobject: 'loop1' (00000000d829c743): kobject_uevent_env
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 2975 Comm: kworker/u4:4 Not tainted 4.20.0+ #11
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_mcast_mla_update
kobject: 'loop1' (00000000d829c743): fill_kobj_path: path = '/devices/virtual/block/loop1'
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1db/0x2d0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
kernel msg: ebtables bug: please report to author: bad policy
 __warn.cold+0x20/0x48 kernel/panic.c:571
 report_bug+0x263/0x2b0 lib/bug.c:186
kobject: 'loop4' (0000000047ee115e): kobject_uevent_env
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:290
kobject: 'loop4' (0000000047ee115e): fill_kobj_path: path = '/devices/virtual/block/loop4'
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:batadv_mcast_mla_tt_add net/batman-adv/multicast.c:371 [inline]
RIP: 0010:__batadv_mcast_mla_update net/batman-adv/multicast.c:636 [inline]
RIP: 0010:batadv_mcast_mla_update+0x20ed/0x2980 net/batman-adv/multicast.c:661
Code: 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df be f8 f8 ff ff 66 41 89 34 06 48 c1 ea 03 c6 04 02 f8 e9 87 ea ff ff e8 33 c2 af f9 <0f> 0b e9 cf e6 ff ff e8 27 c2 af f9 48 8b 95 00 fe ff ff 49 c1 ee
kobject: 'loop2' (0000000069233e32): kobject_uevent_env
RSP: 0018:ffff88809eb57788 EFLAGS: 00010293
RAX: ffff88809eb44480 RBX: 0000000000000001 RCX: ffffffff87d21d2a
RDX: 0000000000000000 RSI: ffffffff87d2365d RDI: 0000000000000007
RBP: ffff88809eb579e0 R08: ffff88809eb44480 R09: ffff88809eb44d48
R10: ffff88809eb44480 R11: 0000000000000000 R12: ffff88809eb57868
R13: 0000000000000000 R14: 1ffff11013d6af0d R15: ffff88809eb579b8
kobject: 'loop2' (0000000069233e32): fill_kobj_path: path = '/devices/virtual/block/loop2'
 process_one_work+0xd0c/0x1ce0 kernel/workqueue.c:2153
 worker_thread+0x143/0x14a0 kernel/workqueue.c:2296
 kthread+0x357/0x430 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..