WARNING: CPU: 1 PID: 8197 at net/batman-adv/multicast.c:326 batadv_mcast_mla_tt_retract+0x309/0x3d0 net/batman-adv/multicast.c:326 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 8197 Comm: kworker/u4:6 Not tainted 5.1.0-rc5+ #96 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_mcast_mla_update Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2cb/0x65c kernel/panic.c:214 __warn.cold+0x20/0x45 kernel/panic.c:571 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:batadv_mcast_mla_tt_retract+0x309/0x3d0 net/batman-adv/multicast.c:326 Code: ed f1 77 fa 4c 8b 7d c0 4d 85 ff 0f 85 c3 fd ff ff e8 db f1 77 fa 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 c7 f1 77 fa <0f> 0b e9 54 fd ff ff e8 1b 73 b0 fa e9 37 fe ff ff 48 89 df e8 2e RSP: 0018:ffff88806b7dfb50 EFLAGS: 00010293 RAX: ffff88808ea48380 RBX: 0000000000000001 RCX: ffffffff86f8985b RDX: 0000000000000000 RSI: ffffffff86f89b09 RDI: 0000000000000007 RBP: ffff88806b7dfbb0 R08: ffff88808ea48380 R09: 0000000000000003 R10: ffffed1015d25bbf R11: ffff8880ae92ddfb R12: ffff88806b7dfc98 R13: ffff88806e095208 R14: 0000000000000000 R15: ffff88806b7dfd08 __batadv_mcast_mla_update net/batman-adv/multicast.c:624 [inline] batadv_mcast_mla_update+0x553/0x1ec0 net/batman-adv/multicast.c:650 process_one_work+0x98e/0x1790 kernel/workqueue.c:2269 worker_thread+0x98/0xe40 kernel/workqueue.c:2415 kthread+0x357/0x430 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds..