[ 9.145921][ T169] packetdrill (169) used greatest stack depth: 24168 bytes left [ 9.145936][ T169] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.145938][ T169] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 169, name: packetdrill [ 9.145939][ T169] preempt_count: 2, expected: 0 [ 9.145940][ T169] RCU nest depth: 0, expected: 0 [ 9.145941][ T169] locks held by packetdrill/169: 5, last CPU#1: [ 9.145943][ T169] #0: ffffffff8de027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.145955][ T169] #1: ffffffff8df69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.145960][ T169] #2: ffffffff8df69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.145963][ T169] #3: ffffffff8de89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.145966][ T169] #4: ffffffff8de89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.145969][ T169] irq event stamp: 4096502 [ 9.145970][ T169] hardirqs last enabled at (4096501): [] __down_trylock_console_sem+0x86/0xa0 [ 9.145974][ T169] hardirqs last disabled at (4096502): [] console_emit_next_record+0x3d4/0x4c0 [ 9.145975][ T169] softirqs last enabled at (4092814): [] handle_softirqs+0x67c/0x900 [ 9.145977][ T169] softirqs last disabled at (4091965): [] __irq_exit_rcu+0x145/0x1c0 [ 9.145980][ T169] Preemption disabled at: [ 9.145980][ T169] [<0000000000000000>] 0x0 [ 9.145987][ T169] CPU: 1 UID: 0 PID: 169 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.145990][ T169] Tainted: [W]=WARN [ 9.145991][ T169] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.145993][ T169] Call Trace: [ 9.145994][ T169] [ 9.145996][ T169] dump_stack_lvl+0x6f/0xa0 [ 9.146001][ T169] __might_resched.cold+0x1fe/0x2c1 [ 9.146005][ T169] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.146008][ T169] ? __kmalloc_noprof+0xdb/0x760 [ 9.146013][ T169] __kmalloc_noprof+0x443/0x760 [ 9.146016][ T169] ? alloc_buf.isra.0+0x4b/0x260 [ 9.146022][ T169] ? do_raw_spin_unlock+0x59/0x250 [ 9.146024][ T169] alloc_buf.isra.0+0x4b/0x260 [ 9.146027][ T169] put_chars+0x1e1/0x2f0 [ 9.146031][ T169] ? __send_to_port+0x420/0x420 [ 9.146032][ T169] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.146036][ T169] ? validate_chain+0x38b/0xc20 [ 9.146041][ T169] hvc_console_print+0x292/0x780 [ 9.146048][ T169] ? hvc_write+0x3a0/0x3a0 [ 9.146050][ T169] ? rcu_is_watching+0x16/0xd0 [ 9.146052][ T169] ? lock_acquire+0x13c/0x160 [ 9.146056][ T169] console_emit_next_record+0x22f/0x4c0 [ 9.146059][ T169] ? devkmsg_read+0x4b0/0x4b0 [ 9.146060][ T169] ? console_flush_one_record+0x106/0x710 [ 9.146063][ T169] ? rcu_is_watching+0x16/0xd0 [ 9.146064][ T169] ? lock_acquire+0x13c/0x160 [ 9.146068][ T169] console_flush_one_record+0x46f/0x710 [ 9.146072][ T169] ? console_emit_next_record+0x4c0/0x4c0 [ 9.146073][ T169] ? __lock_acquire+0x518/0xc20 [ 9.146078][ T169] console_unlock+0xee/0x1f0 [ 9.146080][ T169] ? console_flush_one_record+0x710/0x710 [ 9.146082][ T169] ? rcu_is_watching+0x16/0xd0 [ 9.146083][ T169] ? lock_acquire+0x60/0x160 [ 9.146087][ T169] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.146089][ T169] ? vprintk_emit+0x320/0x3e0 [ 9.146091][ T169] vprintk_emit+0x37c/0x3e0 [ 9.146094][ T169] ? wake_up_klogd_work_func+0x90/0x90 [ 9.146096][ T169] ? do_raw_spin_unlock+0x59/0x250 [ 9.146099][ T169] ? __lock_acquire+0x518/0xc20 [ 9.146103][ T169] _printk+0xc7/0x100 [ 9.146106][ T169] ? snapshot_read.cold+0x21/0x21 [ 9.146109][ T169] ? do_raw_spin_lock+0x131/0x280 [ 9.146111][ T169] ? __rwlock_init+0x150/0x150 [ 9.146115][ T169] ? do_raw_spin_lock+0x131/0x280 [ 9.146118][ T169] do_exit.cold+0x82/0x9c [ 9.146121][ T169] ? exit_notify+0x890/0x890 [ 9.146123][ T169] ? __lock_release.isra.0+0x69/0x1a0 [ 9.146126][ T169] ? rcu_is_watching+0x16/0xd0 [ 9.146129][ T169] do_group_exit+0xb8/0x370 [ 9.146132][ T169] __x64_sys_exit_group+0x3c/0x50 [ 9.146134][ T169] x64_sys_call+0x1567/0x1570 [ 9.146137][ T169] do_syscall_64+0xff/0x530 [ 9.146141][ T169] ? irq_exit_rcu+0x1a/0x30 [ 9.146143][ T169] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.146145][ T169] RIP: 0033:0x479678 [ 9.146148][ T169] Code: Unable to access opcode bytes at 0x47964e. [ 9.146148][ T169] RSP: 002b:00007fff8114ec48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.146158][ T169] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 9.146160][ T169] RDX: 000000002d8c6708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 9.146161][ T169] RBP: 00007fff8114eca0 R08: 0000000000000000 R09: 000000002d8c73e0 [ 9.146162][ T169] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fff8114edd8 [ 9.146163][ T169] R13: 00007fff8114ee60 R14: 0000000000000000 R15: 000000000054d560 [ 9.146169][ T169]