[ 10.295393][ T168] packetdrill (168) used greatest stack depth: 23960 bytes left [ 10.295408][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.295410][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: packetdrill [ 10.295412][ T168] preempt_count: 2, expected: 0 [ 10.295413][ T168] RCU nest depth: 0, expected: 0 [ 10.295414][ T168] locks held by packetdrill/168: 5, last CPU#0: [ 10.295416][ T168] #0: fffffffface027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.295429][ T168] #1: ffffffffacf69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.295434][ T168] #2: ffffffffacf69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.295438][ T168] #3: fffffffface89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.295441][ T168] #4: fffffffface89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.295444][ T168] irq event stamp: 3993774 [ 10.295445][ T168] hardirqs last enabled at (3993773): [] __down_trylock_console_sem+0x86/0xa0 [ 10.295449][ T168] hardirqs last disabled at (3993774): [] console_emit_next_record+0x3d4/0x4c0 [ 10.295450][ T168] softirqs last enabled at (3993732): [] handle_softirqs+0x67c/0x900 [ 10.295452][ T168] softirqs last disabled at (3993583): [] __irq_exit_rcu+0x145/0x1c0 [ 10.295455][ T168] Preemption disabled at: [ 10.295456][ T168] [<0000000000000000>] 0x0 [ 10.295462][ T168] CPU: 0 UID: 0 PID: 168 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.295466][ T168] Tainted: [W]=WARN [ 10.295467][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.295469][ T168] Call Trace: [ 10.295470][ T168] [ 10.295472][ T168] dump_stack_lvl+0x6f/0xa0 [ 10.295477][ T168] __might_resched.cold+0x1fe/0x2c1 [ 10.295482][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.295485][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 10.295491][ T168] __kmalloc_noprof+0x443/0x760 [ 10.295493][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 10.295500][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 10.295503][ T168] alloc_buf.isra.0+0x4b/0x260 [ 10.295506][ T168] put_chars+0x1e1/0x2f0 [ 10.295509][ T168] ? __send_to_port+0x420/0x420 [ 10.295511][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.295515][ T168] ? validate_chain+0x38b/0xc20 [ 10.295521][ T168] hvc_console_print+0x292/0x780 [ 10.295528][ T168] ? hvc_write+0x3a0/0x3a0 [ 10.295531][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.295533][ T168] ? lock_acquire+0x13c/0x160 [ 10.295537][ T168] console_emit_next_record+0x22f/0x4c0 [ 10.295541][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 10.295542][ T168] ? console_flush_one_record+0x106/0x710 [ 10.295545][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.295547][ T168] ? lock_acquire+0x13c/0x160 [ 10.295551][ T168] console_flush_one_record+0x46f/0x710 [ 10.295555][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 10.295556][ T168] ? __lock_acquire+0x518/0xc20 [ 10.295561][ T168] console_unlock+0xee/0x1f0 [ 10.295564][ T168] ? console_flush_one_record+0x710/0x710 [ 10.295565][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.295567][ T168] ? lock_acquire+0x60/0x160 [ 10.295571][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.295573][ T168] ? vprintk_emit+0x320/0x3e0 [ 10.295576][ T168] vprintk_emit+0x37c/0x3e0 [ 10.295579][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 10.295581][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 10.295584][ T168] ? __lock_acquire+0x518/0xc20 [ 10.295588][ T168] _printk+0xc7/0x100 [ 10.295592][ T168] ? snapshot_read.cold+0x21/0x21 [ 10.295595][ T168] ? do_raw_spin_lock+0x131/0x280 [ 10.295597][ T168] ? __rwlock_init+0x150/0x150 [ 10.295601][ T168] ? do_raw_spin_lock+0x131/0x280 [ 10.295605][ T168] do_exit.cold+0x82/0x9c [ 10.295608][ T168] ? exit_notify+0x890/0x890 [ 10.295610][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 10.295613][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.295616][ T168] do_group_exit+0xb8/0x370 [ 10.295620][ T168] __x64_sys_exit_group+0x3c/0x50 [ 10.295622][ T168] x64_sys_call+0x1567/0x1570 [ 10.295625][ T168] do_syscall_64+0xff/0x530 [ 10.295629][ T168] ? irq_exit_rcu+0x1a/0x30 [ 10.295632][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.295634][ T168] RIP: 0033:0x479678 [ 10.295636][ T168] Code: Unable to access opcode bytes at 0x47964e. [ 10.295637][ T168] RSP: 002b:00007ffc60ef1568 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.295640][ T168] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.295641][ T168] RDX: 0000000021797708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.295642][ T168] RBP: 00007ffc60ef15c0 R08: 0000000000000000 R09: 00000000217983e0 [ 10.295643][ T168] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffc60ef16f8 [ 10.295644][ T168] R13: 00007ffc60ef1780 R14: 0000000000000000 R15: 000000000054d560 [ 10.295651][ T168]