[ 13.006477][ T241] conntrack (241) used greatest stack depth: 24128 bytes left [ 13.006494][ T241] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.006496][ T241] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 241, name: conntrack [ 13.006497][ T241] preempt_count: 2, expected: 0 [ 13.006498][ T241] RCU nest depth: 0, expected: 0 [ 13.006499][ T241] locks held by conntrack/241: 5, last CPU#3: [ 13.006502][ T241] #0: ffffffffba402f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 13.006514][ T241] #1: ffffffffba56a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.006519][ T241] #2: ffffffffba56a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.006523][ T241] #3: ffffffffba489de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.006526][ T241] #4: ffffffffba489ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.006529][ T241] irq event stamp: 42216 [ 13.006530][ T241] hardirqs last enabled at (42215): [] __down_trylock_console_sem+0x86/0xa0 [ 13.006534][ T241] hardirqs last disabled at (42216): [] console_emit_next_record+0x3d4/0x4c0 [ 13.006535][ T241] softirqs last enabled at (41670): [] handle_softirqs+0x67c/0x900 [ 13.006537][ T241] softirqs last disabled at (40735): [] __irq_exit_rcu+0x145/0x1c0 [ 13.006540][ T241] Preemption disabled at: [ 13.006540][ T241] [<0000000000000000>] 0x0 [ 13.006548][ T241] CPU: 3 UID: 0 PID: 241 Comm: conntrack Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.006551][ T241] Tainted: [W]=WARN [ 13.006552][ T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.006554][ T241] Call Trace: [ 13.006556][ T241] [ 13.006557][ T241] dump_stack_lvl+0x6f/0xa0 [ 13.006562][ T241] __might_resched.cold+0x1fe/0x2c1 [ 13.006567][ T241] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.006570][ T241] ? __kmalloc_noprof+0xdb/0x760 [ 13.006575][ T241] __kmalloc_noprof+0x443/0x760 [ 13.006577][ T241] ? alloc_buf.isra.0+0x4b/0x260 [ 13.006583][ T241] ? do_raw_spin_unlock+0x59/0x250 [ 13.006586][ T241] alloc_buf.isra.0+0x4b/0x260 [ 13.006590][ T241] put_chars+0x1e1/0x2f0 [ 13.006592][ T241] ? __send_to_port+0x420/0x420 [ 13.006599][ T241] hvc_console_print+0x292/0x780 [ 13.006606][ T241] ? hvc_write+0x3a0/0x3a0 [ 13.006608][ T241] ? lock_acquire+0x13c/0x160 [ 13.006613][ T241] console_emit_next_record+0x22f/0x4c0 [ 13.006616][ T241] ? devkmsg_read+0x4b0/0x4b0 [ 13.006617][ T241] ? console_flush_one_record+0x106/0x710 [ 13.006620][ T241] ? rcu_is_watching+0x16/0xd0 [ 13.006623][ T241] ? lock_acquire+0x13c/0x160 [ 13.006627][ T241] console_flush_one_record+0x46f/0x710 [ 13.006631][ T241] ? console_emit_next_record+0x4c0/0x4c0 [ 13.006632][ T241] ? __lock_acquire+0x518/0xc20 [ 13.006637][ T241] console_unlock+0xee/0x1f0 [ 13.006640][ T241] ? console_flush_one_record+0x710/0x710 [ 13.006641][ T241] ? rcu_is_watching+0x16/0xd0 [ 13.006643][ T241] ? lock_acquire+0x60/0x160 [ 13.006646][ T241] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.006648][ T241] ? vprintk_emit+0x320/0x3e0 [ 13.006651][ T241] vprintk_emit+0x37c/0x3e0 [ 13.006654][ T241] ? wake_up_klogd_work_func+0x90/0x90 [ 13.006657][ T241] ? __lock_acquire+0x518/0xc20 [ 13.006661][ T241] _printk+0xc7/0x100 [ 13.006664][ T241] ? snapshot_read.cold+0x21/0x21 [ 13.006667][ T241] ? do_raw_spin_lock+0x131/0x280 [ 13.006669][ T241] ? __rwlock_init+0x150/0x150 [ 13.006673][ T241] ? do_raw_spin_lock+0x131/0x280 [ 13.006676][ T241] do_exit.cold+0x82/0x9c [ 13.006680][ T241] ? exit_notify+0x890/0x890 [ 13.006681][ T241] ? __lock_release.isra.0+0x69/0x1a0 [ 13.006684][ T241] ? rcu_is_watching+0x16/0xd0 [ 13.006687][ T241] do_group_exit+0xb8/0x370 [ 13.006690][ T241] __x64_sys_exit_group+0x3c/0x50 [ 13.006693][ T241] x64_sys_call+0x1567/0x1570 [ 13.006695][ T241] do_syscall_64+0x10e/0x570 [ 13.006699][ T241] ? exc_page_fault+0xee/0x100 [ 13.006702][ T241] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.006704][ T241] RIP: 0033:0x7f710f88d1b8 [ 13.006706][ T241] Code: Unable to access opcode bytes at 0x7f710f88d18e. [ 13.006707][ T241] RSP: 002b:00007ffdffb53f88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 13.006710][ T241] RAX: ffffffffffffffda RBX: 00007f710f9bdf88 RCX: 00007f710f88d1b8 [ 13.006711][ T241] RDX: 00007f710f7c4748 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 13.006712][ T241] RBP: 00007ffdffb53fe0 R08: 0000000000000000 R09: 0000000000000020 [ 13.006713][ T241] R10: 00007ffdffb53e00 R11: 0000000000000246 R12: 0000000000000001 [ 13.006714][ T241] R13: 0000000000000000 R14: 00007f710f9bc680 R15: 00007f710f9bdfa0 [ 13.006721][ T241]