[ 11.675425][ T220] packetdrill (220) used greatest stack depth: 23504 bytes left [ 11.675441][ T220] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.675444][ T220] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 220, name: packetdrill [ 11.675445][ T220] preempt_count: 2, expected: 0 [ 11.675446][ T220] RCU nest depth: 0, expected: 0 [ 11.675447][ T220] locks held by packetdrill/220: 5, last CPU#1: [ 11.675449][ T220] #0: ffffffffad2027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.675462][ T220] #1: ffffffffad369cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.675467][ T220] #2: ffffffffad369d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.675470][ T220] #3: ffffffffad289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.675474][ T220] #4: ffffffffad289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.675477][ T220] irq event stamp: 4233210 [ 11.675478][ T220] hardirqs last enabled at (4233209): [] __down_trylock_console_sem+0x86/0xa0 [ 11.675481][ T220] hardirqs last disabled at (4233210): [] console_emit_next_record+0x3d4/0x4c0 [ 11.675483][ T220] softirqs last enabled at (4232980): [] tcp_close+0x2b/0xb0 [ 11.675487][ T220] softirqs last disabled at (4232978): [] release_sock+0x21/0x240 [ 11.675490][ T220] Preemption disabled at: [ 11.675491][ T220] [<0000000000000000>] 0x0 [ 11.675497][ T220] CPU: 1 UID: 0 PID: 220 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.675501][ T220] Tainted: [W]=WARN [ 11.675502][ T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.675504][ T220] Call Trace: [ 11.675505][ T220] [ 11.675507][ T220] dump_stack_lvl+0x6f/0xa0 [ 11.675513][ T220] __might_resched.cold+0x1fe/0x2c1 [ 11.675517][ T220] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.675520][ T220] ? __kmalloc_noprof+0xdb/0x760 [ 11.675525][ T220] __kmalloc_noprof+0x443/0x760 [ 11.675528][ T220] ? alloc_buf.isra.0+0x4b/0x260 [ 11.675534][ T220] ? do_raw_spin_unlock+0x59/0x250 [ 11.675536][ T220] alloc_buf.isra.0+0x4b/0x260 [ 11.675540][ T220] put_chars+0x1e1/0x2f0 [ 11.675543][ T220] ? __send_to_port+0x420/0x420 [ 11.675545][ T220] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.675548][ T220] ? validate_chain+0x38b/0xc20 [ 11.675554][ T220] hvc_console_print+0x292/0x780 [ 11.675560][ T220] ? hvc_write+0x3a0/0x3a0 [ 11.675563][ T220] ? rcu_is_watching+0x16/0xd0 [ 11.675565][ T220] ? lock_acquire+0x13c/0x160 [ 11.675569][ T220] console_emit_next_record+0x22f/0x4c0 [ 11.675573][ T220] ? devkmsg_read+0x4b0/0x4b0 [ 11.675574][ T220] ? console_flush_one_record+0x106/0x710 [ 11.675576][ T220] ? rcu_is_watching+0x16/0xd0 [ 11.675578][ T220] ? lock_acquire+0x13c/0x160 [ 11.675582][ T220] console_flush_one_record+0x46f/0x710 [ 11.675586][ T220] ? console_emit_next_record+0x4c0/0x4c0 [ 11.675587][ T220] ? __lock_acquire+0x518/0xc20 [ 11.675593][ T220] console_unlock+0xee/0x1f0 [ 11.675595][ T220] ? console_flush_one_record+0x710/0x710 [ 11.675596][ T220] ? rcu_is_watching+0x16/0xd0 [ 11.675598][ T220] ? lock_acquire+0x60/0x160 [ 11.675602][ T220] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.675604][ T220] ? vprintk_emit+0x320/0x3e0 [ 11.675607][ T220] vprintk_emit+0x37c/0x3e0 [ 11.675610][ T220] ? wake_up_klogd_work_func+0x90/0x90 [ 11.675611][ T220] ? do_raw_spin_unlock+0x59/0x250 [ 11.675614][ T220] ? __lock_acquire+0x518/0xc20 [ 11.675618][ T220] _printk+0xc7/0x100 [ 11.675622][ T220] ? snapshot_read.cold+0x21/0x21 [ 11.675625][ T220] ? do_raw_spin_lock+0x131/0x280 [ 11.675628][ T220] ? __rwlock_init+0x150/0x150 [ 11.675632][ T220] ? do_raw_spin_lock+0x131/0x280 [ 11.675634][ T220] do_exit.cold+0x82/0x9c [ 11.675638][ T220] ? exit_notify+0x890/0x890 [ 11.675639][ T220] ? __lock_release.isra.0+0x69/0x1a0 [ 11.675642][ T220] ? rcu_is_watching+0x16/0xd0 [ 11.675646][ T220] do_group_exit+0xb8/0x370 [ 11.675649][ T220] __x64_sys_exit_group+0x3c/0x50 [ 11.675651][ T220] x64_sys_call+0x1567/0x1570 [ 11.675654][ T220] do_syscall_64+0xff/0x530 [ 11.675658][ T220] ? irq_exit_rcu+0x1a/0x30 [ 11.675661][ T220] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.675663][ T220] RIP: 0033:0x479678 [ 11.675665][ T220] Code: Unable to access opcode bytes at 0x47964e. [ 11.675666][ T220] RSP: 002b:00007ffd71435738 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.675669][ T220] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.675670][ T220] RDX: 0000000025233708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.675671][ T220] RBP: 00007ffd71435790 R08: 0000000000000000 R09: 00000000252343e0 [ 11.675672][ T220] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffd714358c8 [ 11.675673][ T220] R13: 00007ffd71435950 R14: 0000000000000000 R15: 000000000054d560 [ 11.675679][ T220]