IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready 8021q: adding VLAN 0 to HW filter on device batadv0 nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead. WARNING: CPU: 1 PID: 0 at net/ipv4/tcp_output.c:2535 tcp_send_loss_probe+0x771/0x8a0 net/ipv4/tcp_output.c:2535 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.0.0-rc7+ #86 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+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: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 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:tcp_send_loss_probe+0x771/0x8a0 net/ipv4/tcp_output.c:2535 Code: 88 fc ff ff 4c 89 ef e8 1d 76 c9 fb e9 c8 fc ff ff e8 73 76 c9 fb e9 63 fd ff ff e8 09 76 c9 fb e9 94 f9 ff ff e8 af 73 92 fb <0f> 0b e9 7d fa ff ff e8 a3 73 92 fb 0f b6 1d 07 6e 7b 03 31 ff 89 RSP: 0018:ffff8880ae907c68 EFLAGS: 00010206 RAX: ffff8880aa290340 RBX: 0000000000000000 RCX: ffffffff85dd68fb RDX: 0000000000000100 RSI: ffffffff85dd6dd1 RDI: 0000000000000005 RBP: ffff8880ae907c98 R08: ffff8880aa290340 R09: ffffed10109f69e1 R10: ffffed10109f69e0 R11: ffff888084fb4f03 R12: ffff8880a57b6b40 R13: ffff888084fb4d40 R14: 0000000000008000 R15: ffff8880a57b7350 tcp_write_timer_handler+0x4f8/0x8e0 net/ipv4/tcp_timer.c:596 tcp_write_timer+0x10e/0x1d0 net/ipv4/tcp_timer.c:620 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:native_safe_halt+0x2/0x10 arch/x86/include/asm/irqflags.h:58 Code: ff ff ff 48 89 c7 48 89 45 d8 e8 59 a9 a3 fa 48 8b 45 d8 e9 ce fe ff ff 48 89 df e8 48 a9 a3 fa eb 82 90 90 90 90 90 90 fb f4 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f4 c3 90 90 90 90 90 90 RSP: 0018:ffff8880aa29fd78 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1125061 RBX: ffff8880aa290340 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880aa290bbc RBP: ffff8880aa29fda8 R08: ffff8880aa290340 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff889282f8 R14: 0000000000000001 R15: 0000000000000000 arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:555 default_idle_call+0x36/0x90 kernel/sched/idle.c:93 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x386/0x570 kernel/sched/idle.c:262 cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:353 start_secondary+0x404/0x5c0 arch/x86/kernel/smpboot.c:271 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 Kernel Offset: disabled Rebooting in 86400 seconds..