invalid inflight: 1 state 4 cwnd 10 mss 1448
------------[ cut here ]------------
WARNING: CPU: 1 PID: 17105 at net/ipv4/tcp_output.c:2507 tcp_send_loss_probe.cold+0x83/0xa2 net/ipv4/tcp_output.c:2507
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 17105 Comm: udevd Not tainted 4.14.144 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x138/0x197 lib/dump_stack.c:53
 panic+0x1f2/0x426 kernel/panic.c:182
kobject: 'loop5' (ffff8880a4a02220): kobject_uevent_env
kobject: 'loop5' (ffff8880a4a02220): fill_kobj_path: path = '/devices/virtual/block/loop5'
 __warn.cold+0x2f/0x36 kernel/panic.c:546
 report_bug+0x216/0x254 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:tcp_send_loss_probe.cold+0x83/0xa2 net/ipv4/tcp_output.c:2507
RSP: 0018:ffff8880aef07cb8 EFLAGS: 00010282
RAX: 000000000000002c RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffffffff866d10e0 RDI: ffffed1015de0f8d
RBP: ffff8880aef07ce8 R08: 000000000000002c R09: ffff88802080aa98
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88806768a000
R13: 0000000000000001 R14: 00000000000005a8 R15: 000000000000000a
 tcp_write_timer_handler+0x4a8/0x7e0 net/ipv4/tcp_timer.c:575
 tcp_write_timer+0xd8/0x180 net/ipv4/tcp_timer.c:597
 call_timer_fn+0x161/0x670 kernel/time/timer.c:1279
 expire_timers kernel/time/timer.c:1318 [inline]
 __run_timers kernel/time/timer.c:1634 [inline]
 __run_timers kernel/time/timer.c:1602 [inline]
 run_timer_softirq+0x5b4/0x1570 kernel/time/timer.c:1647
kobject: 'kvm' (ffff8880a6e53410): kobject_uevent_env
 __do_softirq+0x244/0x9a0 kernel/softirq.c:288
 invoke_softirq kernel/softirq.c:368 [inline]
 irq_exit+0x160/0x1b0 kernel/softirq.c:409
 exiting_irq arch/x86/include/asm/apic.h:648 [inline]
 smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102
 apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline]
RIP: 0010:lock_acquire+0x1ea/0x430 kernel/locking/lockdep.c:3994
RSP: 0018:ffff888020c4f928 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
kobject: 'kvm' (ffff8880a6e53410): fill_kobj_path: path = '/devices/virtual/misc/kvm'
RAX: 1ffffffff0ee2a81 RBX: ffff88802080a180 RCX: 00000000566bc500
RDX: dffffc0000000000 RSI: ffff88802080aa28 RDI: 0000000000000286
RBP: ffff888020c4f970 R08: 0000000000004cfe R09: ffffffff88ca5c70
R10: ffff88802080aa28 R11: ffff88802080a180 R12: ffff8880a05bd9b8
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:152
kobject: 'kvm' (ffff8880a6e53410): kobject_uevent_env
 spin_lock include/linux/spinlock.h:317 [inline]
 do_anonymous_page mm/memory.c:3151 [inline]
 handle_pte_fault mm/memory.c:3987 [inline]
 __handle_mm_fault+0x1a89/0x3470 mm/memory.c:4113
 handle_mm_fault+0x293/0x7c0 mm/memory.c:4150
kobject: 'kvm' (ffff8880a6e53410): fill_kobj_path: path = '/devices/virtual/misc/kvm'
 faultin_page mm/gup.c:514 [inline]
 __get_user_pages+0x465/0x1220 mm/gup.c:714
 __get_user_pages_locked mm/gup.c:885 [inline]
 get_user_pages_remote+0x1bf/0x3a0 mm/gup.c:1090
 get_arg_page fs/exec.c:216 [inline]
 copy_strings.isra.0+0x488/0x8d0 fs/exec.c:552
kobject: 'loop3' (ffff8880a49d89e0): kobject_uevent_env
kobject: 'loop3' (ffff8880a49d89e0): fill_kobj_path: path = '/devices/virtual/block/loop3'
 copy_strings_kernel+0xa5/0x110 fs/exec.c:597
 do_execveat_common.isra.0+0xda5/0x1dd0 fs/exec.c:1787
 do_execve fs/exec.c:1847 [inline]
 SYSC_execve fs/exec.c:1928 [inline]
 SyS_execve+0x39/0x50 fs/exec.c:1923
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x7f165aa7e207
RSP: 002b:00007ffee4a17428 EFLAGS: 00000206 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007f165aa7e207
RDX: 0000000000ad8e80 RSI: 00007ffee4a17520 RDI: 00007ffee4a18530
RBP: 0000000000625500 R08: 0000000000003983 R09: 0000000000003983
kobject: 'kvm' (ffff8880a6e53410): kobject_uevent_env
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000ad8e80
R13: 0000000000000007 R14: 0000000000a89030 R15: 0000000000000005
Kernel Offset: disabled
Rebooting in 86400 seconds..