[ 12.720951][ T201] packetdrill (201) used greatest stack depth: 23912 bytes left [ 12.720970][ T201] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.720972][ T201] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 201, name: packetdrill [ 12.720974][ T201] preempt_count: 2, expected: 0 [ 12.720975][ T201] RCU nest depth: 0, expected: 0 [ 12.720976][ T201] locks held by packetdrill/201: 5, last CPU#3: [ 12.720978][ T201] #0: ffffffffbc4027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.720991][ T201] #1: ffffffffbc569cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.720996][ T201] #2: ffffffffbc569d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.721000][ T201] #3: ffffffffbc489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.721003][ T201] #4: ffffffffbc489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 12.721006][ T201] irq event stamp: 2280996 [ 12.721007][ T201] hardirqs last enabled at (2280995): [] __down_trylock_console_sem+0x86/0xa0 [ 12.721011][ T201] hardirqs last disabled at (2280996): [] console_emit_next_record+0x3d4/0x4c0 [ 12.721012][ T201] softirqs last enabled at (2280752): [] tcp_close+0x2b/0xb0 [ 12.721017][ T201] softirqs last disabled at (2280750): [] release_sock+0x21/0x240 [ 12.721021][ T201] Preemption disabled at: [ 12.721021][ T201] [<0000000000000000>] 0x0 [ 12.721028][ T201] CPU: 3 UID: 0 PID: 201 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.721032][ T201] Tainted: [W]=WARN [ 12.721033][ T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.721034][ T201] Call Trace: [ 12.721036][ T201] [ 12.721037][ T201] dump_stack_lvl+0x6f/0xa0 [ 12.721043][ T201] __might_resched.cold+0x1fe/0x2c1 [ 12.721047][ T201] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.721050][ T201] ? __kmalloc_noprof+0xdb/0x760 [ 12.721055][ T201] __kmalloc_noprof+0x443/0x760 [ 12.721058][ T201] ? alloc_buf.isra.0+0x4b/0x260 [ 12.721064][ T201] ? do_raw_spin_unlock+0x59/0x250 [ 12.721067][ T201] alloc_buf.isra.0+0x4b/0x260 [ 12.721070][ T201] put_chars+0x1e1/0x2f0 [ 12.721073][ T201] ? __send_to_port+0x420/0x420 [ 12.721075][ T201] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 12.721079][ T201] ? validate_chain+0x38b/0xc20 [ 12.721084][ T201] hvc_console_print+0x292/0x780 [ 12.721091][ T201] ? hvc_write+0x3a0/0x3a0 [ 12.721093][ T201] ? rcu_is_watching+0x16/0xd0 [ 12.721095][ T201] ? lock_acquire+0x13c/0x160 [ 12.721099][ T201] console_emit_next_record+0x22f/0x4c0 [ 12.721102][ T201] ? devkmsg_read+0x4b0/0x4b0 [ 12.721103][ T201] ? console_flush_one_record+0x106/0x710 [ 12.721106][ T201] ? rcu_is_watching+0x16/0xd0 [ 12.721108][ T201] ? lock_acquire+0x13c/0x160 [ 12.721111][ T201] console_flush_one_record+0x46f/0x710 [ 12.721115][ T201] ? console_emit_next_record+0x4c0/0x4c0 [ 12.721116][ T201] ? __lock_acquire+0x518/0xc20 [ 12.721124][ T201] console_unlock+0xee/0x1f0 [ 12.721127][ T201] ? console_flush_one_record+0x710/0x710 [ 12.721128][ T201] ? rcu_is_watching+0x16/0xd0 [ 12.721130][ T201] ? lock_acquire+0x60/0x160 [ 12.721133][ T201] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.721135][ T201] ? vprintk_emit+0x320/0x3e0 [ 12.721138][ T201] vprintk_emit+0x37c/0x3e0 [ 12.721141][ T201] ? wake_up_klogd_work_func+0x90/0x90 [ 12.721142][ T201] ? do_raw_spin_unlock+0x59/0x250 [ 12.721145][ T201] ? __lock_acquire+0x518/0xc20 [ 12.721149][ T201] _printk+0xc7/0x100 [ 12.721153][ T201] ? snapshot_read.cold+0x21/0x21 [ 12.721156][ T201] ? do_raw_spin_lock+0x131/0x280 [ 12.721159][ T201] ? __rwlock_init+0x150/0x150 [ 12.721162][ T201] ? do_raw_spin_lock+0x131/0x280 [ 12.721165][ T201] do_exit.cold+0x82/0x9c [ 12.721169][ T201] ? exit_notify+0x890/0x890 [ 12.721170][ T201] ? __lock_release.isra.0+0x69/0x1a0 [ 12.721173][ T201] ? rcu_is_watching+0x16/0xd0 [ 12.721176][ T201] do_group_exit+0xb8/0x370 [ 12.721179][ T201] __x64_sys_exit_group+0x3c/0x50 [ 12.721181][ T201] x64_sys_call+0x1567/0x1570 [ 12.721184][ T201] do_syscall_64+0xff/0x530 [ 12.721188][ T201] ? irq_exit_rcu+0x1a/0x30 [ 12.721191][ T201] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.721193][ T201] RIP: 0033:0x479678 [ 12.721195][ T201] Code: Unable to access opcode bytes at 0x47964e. [ 12.721196][ T201] RSP: 002b:00007ffdc20452e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.721199][ T201] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 12.721200][ T201] RDX: 0000000017062708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 12.721201][ T201] RBP: 00007ffdc2045340 R08: 0000000000000000 R09: 00000000170633e0 [ 12.721202][ T201] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffdc2045478 [ 12.721203][ T201] R13: 00007ffdc2045500 R14: 0000000000000000 R15: 000000000054d560 [ 12.721209][ T201]