[ 10.977515][ T167] packetdrill (167) used greatest stack depth: 24152 bytes left [ 10.977531][ T167] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.977533][ T167] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 167, name: packetdrill [ 10.977535][ T167] preempt_count: 2, expected: 0 [ 10.977536][ T167] RCU nest depth: 0, expected: 0 [ 10.977537][ T167] locks held by packetdrill/167: 5, last CPU#2: [ 10.977539][ T167] #0: ffffffffa62027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.977552][ T167] #1: ffffffffa6369cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.977557][ T167] #2: ffffffffa6369d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.977561][ T167] #3: ffffffffa6289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.977564][ T167] #4: ffffffffa6289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.977567][ T167] irq event stamp: 3845446 [ 10.977568][ T167] hardirqs last enabled at (3845445): [] __down_trylock_console_sem+0x86/0xa0 [ 10.977572][ T167] hardirqs last disabled at (3845446): [] console_emit_next_record+0x3d4/0x4c0 [ 10.977573][ T167] softirqs last enabled at (3845198): [] tcp_close+0x2b/0xb0 [ 10.977577][ T167] softirqs last disabled at (3845196): [] release_sock+0x21/0x240 [ 10.977581][ T167] Preemption disabled at: [ 10.977582][ T167] [<0000000000000000>] 0x0 [ 10.977589][ T167] CPU: 2 UID: 0 PID: 167 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.977592][ T167] Tainted: [W]=WARN [ 10.977593][ T167] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.977595][ T167] Call Trace: [ 10.977597][ T167] [ 10.977598][ T167] dump_stack_lvl+0x6f/0xa0 [ 10.977604][ T167] __might_resched.cold+0x1fe/0x2c1 [ 10.977608][ T167] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.977612][ T167] ? __kmalloc_noprof+0xdb/0x760 [ 10.977617][ T167] __kmalloc_noprof+0x443/0x760 [ 10.977619][ T167] ? alloc_buf.isra.0+0x4b/0x260 [ 10.977625][ T167] ? do_raw_spin_unlock+0x59/0x250 [ 10.977628][ T167] alloc_buf.isra.0+0x4b/0x260 [ 10.977632][ T167] put_chars+0x1e1/0x2f0 [ 10.977635][ T167] ? __send_to_port+0x420/0x420 [ 10.977636][ T167] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.977640][ T167] ? validate_chain+0x38b/0xc20 [ 10.977646][ T167] hvc_console_print+0x292/0x780 [ 10.977653][ T167] ? hvc_write+0x3a0/0x3a0 [ 10.977655][ T167] ? rcu_is_watching+0x16/0xd0 [ 10.977657][ T167] ? lock_acquire+0x13c/0x160 [ 10.977661][ T167] console_emit_next_record+0x22f/0x4c0 [ 10.977665][ T167] ? devkmsg_read+0x4b0/0x4b0 [ 10.977666][ T167] ? console_flush_one_record+0x106/0x710 [ 10.977669][ T167] ? rcu_is_watching+0x16/0xd0 [ 10.977671][ T167] ? lock_acquire+0x13c/0x160 [ 10.977675][ T167] console_flush_one_record+0x46f/0x710 [ 10.977678][ T167] ? console_emit_next_record+0x4c0/0x4c0 [ 10.977680][ T167] ? __lock_acquire+0x518/0xc20 [ 10.977685][ T167] console_unlock+0xee/0x1f0 [ 10.977688][ T167] ? console_flush_one_record+0x710/0x710 [ 10.977689][ T167] ? rcu_is_watching+0x16/0xd0 [ 10.977691][ T167] ? lock_acquire+0x60/0x160 [ 10.977695][ T167] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.977696][ T167] ? vprintk_emit+0x320/0x3e0 [ 10.977699][ T167] vprintk_emit+0x37c/0x3e0 [ 10.977703][ T167] ? wake_up_klogd_work_func+0x90/0x90 [ 10.977704][ T167] ? do_raw_spin_unlock+0x59/0x250 [ 10.977707][ T167] ? __lock_acquire+0x518/0xc20 [ 10.977711][ T167] _printk+0xc7/0x100 [ 10.977715][ T167] ? snapshot_read.cold+0x21/0x21 [ 10.977718][ T167] ? do_raw_spin_lock+0x131/0x280 [ 10.977721][ T167] ? __rwlock_init+0x150/0x150 [ 10.977725][ T167] ? do_raw_spin_lock+0x131/0x280 [ 10.977728][ T167] do_exit.cold+0x82/0x9c [ 10.977732][ T167] ? exit_notify+0x890/0x890 [ 10.977733][ T167] ? __lock_release.isra.0+0x69/0x1a0 [ 10.977736][ T167] ? rcu_is_watching+0x16/0xd0 [ 10.977740][ T167] do_group_exit+0xb8/0x370 [ 10.977743][ T167] __x64_sys_exit_group+0x3c/0x50 [ 10.977745][ T167] x64_sys_call+0x1567/0x1570 [ 10.977748][ T167] do_syscall_64+0xff/0x530 [ 10.977752][ T167] ? irq_exit_rcu+0x1a/0x30 [ 10.977755][ T167] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.977757][ T167] RIP: 0033:0x479678 [ 10.977759][ T167] Code: Unable to access opcode bytes at 0x47964e. [ 10.977760][ T167] RSP: 002b:00007ffdfc239388 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.977763][ T167] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.977764][ T167] RDX: 000000002e165708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.977765][ T167] RBP: 00007ffdfc2393e0 R08: 0000000000000000 R09: 000000002e1663e0 [ 10.977766][ T167] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffdfc239518 [ 10.977767][ T167] R13: 00007ffdfc2395a0 R14: 0000000000000000 R15: 000000000054d560 [ 10.977774][ T167]