[ 16.357927][ T344] conntrack (344) used greatest stack depth: 24064 bytes left [ 16.357943][ T344] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 16.357945][ T344] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 344, name: conntrack [ 16.357947][ T344] preempt_count: 2, expected: 0 [ 16.357948][ T344] RCU nest depth: 0, expected: 0 [ 16.357948][ T344] locks held by conntrack/344: 5, last CPU#0: [ 16.357951][ T344] #0: ffffffff85202f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 16.357963][ T344] #1: ffffffff8536a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 16.357967][ T344] #2: ffffffff8536a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 16.357970][ T344] #3: ffffffff85289de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 16.357974][ T344] #4: ffffffff85289ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 16.357977][ T344] irq event stamp: 38566 [ 16.357978][ T344] hardirqs last enabled at (38565): [] __down_trylock_console_sem+0x86/0xa0 [ 16.357981][ T344] hardirqs last disabled at (38566): [] console_emit_next_record+0x3d4/0x4c0 [ 16.357983][ T344] softirqs last enabled at (37682): [] handle_softirqs+0x67c/0x900 [ 16.357985][ T344] softirqs last disabled at (37201): [] __irq_exit_rcu+0x145/0x1c0 [ 16.357988][ T344] Preemption disabled at: [ 16.357988][ T344] [<0000000000000000>] 0x0 [ 16.357995][ T344] CPU: 0 UID: 0 PID: 344 Comm: conntrack Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 16.357998][ T344] Tainted: [W]=WARN [ 16.357999][ T344] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.358001][ T344] Call Trace: [ 16.358002][ T344] [ 16.358004][ T344] dump_stack_lvl+0x6f/0xa0 [ 16.358009][ T344] __might_resched.cold+0x1fe/0x2c1 [ 16.358014][ T344] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 16.358017][ T344] ? __kmalloc_noprof+0xdb/0x760 [ 16.358021][ T344] __kmalloc_noprof+0x443/0x760 [ 16.358024][ T344] ? alloc_buf.isra.0+0x4b/0x260 [ 16.358029][ T344] ? do_raw_spin_unlock+0x59/0x250 [ 16.358032][ T344] alloc_buf.isra.0+0x4b/0x260 [ 16.358035][ T344] put_chars+0x1e1/0x2f0 [ 16.358038][ T344] ? __send_to_port+0x420/0x420 [ 16.358044][ T344] hvc_console_print+0x292/0x780 [ 16.358051][ T344] ? hvc_write+0x3a0/0x3a0 [ 16.358053][ T344] ? lock_acquire+0x13c/0x160 [ 16.358058][ T344] console_emit_next_record+0x22f/0x4c0 [ 16.358061][ T344] ? devkmsg_read+0x4b0/0x4b0 [ 16.358063][ T344] ? console_flush_one_record+0x106/0x710 [ 16.358065][ T344] ? rcu_is_watching+0x16/0xd0 [ 16.358068][ T344] ? lock_acquire+0x13c/0x160 [ 16.358072][ T344] console_flush_one_record+0x46f/0x710 [ 16.358076][ T344] ? console_emit_next_record+0x4c0/0x4c0 [ 16.358077][ T344] ? __lock_acquire+0x518/0xc20 [ 16.358082][ T344] console_unlock+0xee/0x1f0 [ 16.358085][ T344] ? console_flush_one_record+0x710/0x710 [ 16.358086][ T344] ? rcu_is_watching+0x16/0xd0 [ 16.358088][ T344] ? lock_acquire+0x60/0x160 [ 16.358092][ T344] ? __down_trylock_console_sem+0x5e/0xa0 [ 16.358093][ T344] ? vprintk_emit+0x320/0x3e0 [ 16.358096][ T344] vprintk_emit+0x37c/0x3e0 [ 16.358099][ T344] ? wake_up_klogd_work_func+0x90/0x90 [ 16.358102][ T344] ? __lock_acquire+0x518/0xc20 [ 16.358106][ T344] _printk+0xc7/0x100 [ 16.358109][ T344] ? snapshot_read.cold+0x21/0x21 [ 16.358112][ T344] ? do_raw_spin_lock+0x131/0x280 [ 16.358115][ T344] ? __rwlock_init+0x150/0x150 [ 16.358119][ T344] ? do_raw_spin_lock+0x131/0x280 [ 16.358122][ T344] do_exit.cold+0x82/0x9c [ 16.358125][ T344] ? exit_notify+0x890/0x890 [ 16.358127][ T344] ? __lock_release.isra.0+0x69/0x1a0 [ 16.358129][ T344] ? rcu_is_watching+0x16/0xd0 [ 16.358133][ T344] do_group_exit+0xb8/0x370 [ 16.358136][ T344] __x64_sys_exit_group+0x3c/0x50 [ 16.358138][ T344] x64_sys_call+0x1567/0x1570 [ 16.358141][ T344] do_syscall_64+0x10e/0x570 [ 16.358144][ T344] ? exc_page_fault+0xee/0x100 [ 16.358147][ T344] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 16.358149][ T344] RIP: 0033:0x7f291686b1b8 [ 16.358151][ T344] Code: Unable to access opcode bytes at 0x7f291686b18e. [ 16.358152][ T344] RSP: 002b:00007fff95a31ee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 16.358155][ T344] RAX: ffffffffffffffda RBX: 00007f291699bf88 RCX: 00007f291686b1b8 [ 16.358156][ T344] RDX: 00007f29167a2748 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 16.358157][ T344] RBP: 00007fff95a31f40 R08: 0000000000000000 R09: 0000000000000020 [ 16.358158][ T344] R10: 00007fff95a31d60 R11: 0000000000000246 R12: 0000000000000001 [ 16.358158][ T344] R13: 0000000000000000 R14: 00007f291699a680 R15: 00007f291699bfa0 [ 16.358165][ T344]