------------[ cut here ]------------ WARNING: CPU: 0 PID: 21081 at net/ipv4/tcp_timer.c:429 tcp_retransmit_timer+0x1a66/0x2590 net/ipv4/tcp_timer.c:429 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 21081 Comm: udevd Not tainted 4.14.145+ #0 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xca/0x134 lib/dump_stack.c:53 panic+0x1ea/0x3d3 kernel/panic.c:182 __warn.cold+0x2f/0x3a kernel/panic.c:546 report_bug+0x20a/0x248 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+0x1bf/0x2d0 arch/x86/kernel/traps.c:295 invalid_op+0x18/0x40 arch/x86/entry/entry_64.S:963 RIP: 0010:tcp_retransmit_timer+0x1a66/0x2590 net/ipv4/tcp_timer.c:429 RSP: 0018:ffff8881dba07c78 EFLAGS: 00010206 RAX: ffff8881d1098000 RBX: ffff8881a2400000 RCX: 0000000000000001 RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffff8881d2e761c8 RBP: ffff8881d2e75800 R08: ffff88821fffd01c R09: ffff88821fffd008 R10: ffff88821fffd017 R11: ffff88821fffd010 R12: ffff8881d2e75e9a R13: ffff8881d2e75830 R14: 0000000000000000 R15: ffff8881d2e7600c tcp_write_timer_handler+0x43d/0x780 net/ipv4/tcp_timer.c:579 tcp_write_timer+0xc9/0x170 net/ipv4/tcp_timer.c:597 call_timer_fn+0x15b/0x6a0 kernel/time/timer.c:1279 expire_timers+0x227/0x4c0 kernel/time/timer.c:1318 __run_timers kernel/time/timer.c:1634 [inline] run_timer_softirq+0x1eb/0x5d0 kernel/time/timer.c:1647 __do_softirq+0x234/0x9ec kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x114/0x150 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x1a7/0x650 arch/x86/kernel/apic/apic.c:1102 apic_timer_interrupt+0x8c/0xa0 arch/x86/entry/entry_64.S:792 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x59/0x70 kernel/locking/spinlock.c:192 RSP: 0018:ffff8881d22b77b8 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000007 RBX: 0000000000000206 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8881d1098858 RDI: 0000000000000206 RBP: ffffffffa761f9a0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000206 R13: 0000000000000148 R14: 0000000000000000 R15: dffffc0000000000 spin_unlock_irqrestore include/linux/spinlock.h:372 [inline] avc_reclaim_node security/selinux/avc.c:539 [inline] avc_alloc_node security/selinux/avc.c:557 [inline] avc_alloc_node+0x2bb/0x3f0 security/selinux/avc.c:545 avc_insert security/selinux/avc.c:668 [inline] avc_compute_av+0x17c/0x550 security/selinux/avc.c:974 avc_has_perm_noaudit+0x286/0x2d0 security/selinux/avc.c:1110 selinux_inode_permission+0x2a6/0x4b0 security/selinux/hooks.c:3123 security_inode_permission+0xb4/0xf0 security/security.c:700 __inode_permission2+0x8c/0x2c0 fs/namei.c:439 inode_permission2+0x2d/0x100 fs/namei.c:488 may_lookup fs/namei.c:1809 [inline] link_path_walk+0x19b/0x1110 fs/namei.c:2195 path_parentat.isra.0+0x41/0x150 fs/namei.c:2496 filename_parentat.isra.0+0x18d/0x3e0 fs/namei.c:2518 SYSC_renameat2 fs/namei.c:4726 [inline] SyS_renameat2+0x1b9/0xa00 fs/namei.c:4690 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7ff6e362a527 RSP: 002b:00007ffd0d9f9f38 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff6e362a527 RDX: 00000000022db0e0 RSI: 00007ffd0d9f9f70 RDI: 00007ffd0d9fa370 RBP: 00000000022db550 R08: 00007ff6e3f9d7a0 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000022dae80 R13: 000000000228b030 R14: 00007ffd0d9f9f70 R15: 0000000000000001 Kernel Offset: 0x22c00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) Rebooting in 86400 seconds..