[ 11.398033][ T200] packetdrill (200) used greatest stack depth: 23592 bytes left [ 11.398053][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.398055][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: packetdrill [ 11.398057][ T200] preempt_count: 2, expected: 0 [ 11.398058][ T200] RCU nest depth: 0, expected: 0 [ 11.398059][ T200] locks held by packetdrill/200: 5, last CPU#1: [ 11.398062][ T200] #0: ffffffffac4027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.398077][ T200] #1: ffffffffac569cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.398084][ T200] #2: ffffffffac569d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.398091][ T200] #3: ffffffffac489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.398096][ T200] #4: ffffffffac489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.398100][ T200] irq event stamp: 3898270 [ 11.398101][ T200] hardirqs last enabled at (3898269): [] __down_trylock_console_sem+0x86/0xa0 [ 11.398105][ T200] hardirqs last disabled at (3898270): [] console_emit_next_record+0x3d4/0x4c0 [ 11.398107][ T200] softirqs last enabled at (3898238): [] handle_softirqs+0x67c/0x900 [ 11.398109][ T200] softirqs last disabled at (3896819): [] __irq_exit_rcu+0x145/0x1c0 [ 11.398112][ T200] Preemption disabled at: [ 11.398113][ T200] [<0000000000000000>] 0x0 [ 11.398120][ T200] CPU: 1 UID: 0 PID: 200 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.398124][ T200] Tainted: [W]=WARN [ 11.398125][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.398127][ T200] Call Trace: [ 11.398129][ T200] [ 11.398131][ T200] dump_stack_lvl+0x6f/0xa0 [ 11.398137][ T200] __might_resched.cold+0x1fe/0x2c1 [ 11.398142][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.398145][ T200] ? __kmalloc_noprof+0xdb/0x760 [ 11.398151][ T200] __kmalloc_noprof+0x443/0x760 [ 11.398154][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 11.398161][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 11.398164][ T200] alloc_buf.isra.0+0x4b/0x260 [ 11.398169][ T200] put_chars+0x1e1/0x2f0 [ 11.398172][ T200] ? __send_to_port+0x420/0x420 [ 11.398174][ T200] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.398180][ T200] ? validate_chain+0x38b/0xc20 [ 11.398187][ T200] hvc_console_print+0x292/0x780 [ 11.398195][ T200] ? hvc_write+0x3a0/0x3a0 [ 11.398198][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.398200][ T200] ? lock_acquire+0x13c/0x160 [ 11.398206][ T200] console_emit_next_record+0x22f/0x4c0 [ 11.398210][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 11.398211][ T200] ? console_flush_one_record+0x106/0x710 [ 11.398214][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.398216][ T200] ? lock_acquire+0x13c/0x160 [ 11.398221][ T200] console_flush_one_record+0x46f/0x710 [ 11.398226][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 11.398227][ T200] ? __lock_acquire+0x518/0xc20 [ 11.398234][ T200] console_unlock+0xee/0x1f0 [ 11.398237][ T200] ? console_flush_one_record+0x710/0x710 [ 11.398238][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.398240][ T200] ? lock_acquire+0x60/0x160 [ 11.398245][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.398247][ T200] ? vprintk_emit+0x320/0x3e0 [ 11.398251][ T200] vprintk_emit+0x37c/0x3e0 [ 11.398254][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 11.398256][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 11.398260][ T200] ? __lock_acquire+0x518/0xc20 [ 11.398264][ T200] _printk+0xc7/0x100 [ 11.398271][ T200] ? snapshot_read.cold+0x21/0x21 [ 11.398276][ T200] ? do_raw_spin_lock+0x131/0x280 [ 11.398281][ T200] ? __rwlock_init+0x150/0x150 [ 11.398289][ T200] ? do_raw_spin_lock+0x131/0x280 [ 11.398294][ T200] do_exit.cold+0x82/0x9c [ 11.398298][ T200] ? exit_notify+0x890/0x890 [ 11.398300][ T200] ? __lock_release.isra.0+0x69/0x1a0 [ 11.398303][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.398308][ T200] do_group_exit+0xb8/0x370 [ 11.398312][ T200] __x64_sys_exit_group+0x3c/0x50 [ 11.398314][ T200] x64_sys_call+0x1567/0x1570 [ 11.398317][ T200] do_syscall_64+0xff/0x530 [ 11.398322][ T200] ? irq_exit_rcu+0x1a/0x30 [ 11.398325][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.398328][ T200] RIP: 0033:0x479678 [ 11.398330][ T200] Code: Unable to access opcode bytes at 0x47964e. [ 11.398332][ T200] RSP: 002b:00007ffd258c0e88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.398334][ T200] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.398336][ T200] RDX: 0000000038a7e708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.398337][ T200] RBP: 00007ffd258c0ee0 R08: 0000000000000000 R09: 0000000038a7f3e0 [ 11.398338][ T200] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffd258c1018 [ 11.398339][ T200] R13: 00007ffd258c10a0 R14: 0000000000000000 R15: 000000000054d560 [ 11.398348][ T200]