[ 12.160348][ T168] packetdrill (168) used greatest stack depth: 24600 bytes left [ 12.160366][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.160368][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: packetdrill [ 12.160370][ T168] preempt_count: 2, expected: 0 [ 12.160371][ T168] RCU nest depth: 0, expected: 0 [ 12.160372][ T168] locks held by packetdrill/168: 5, last CPU#0: [ 12.160374][ T168] #0: ffffffffb8a027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.160386][ T168] #1: ffffffffb8b69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.160391][ T168] #2: ffffffffb8b69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.160395][ T168] #3: ffffffffb8a89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.160398][ T168] #4: ffffffffb8a89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 12.160401][ T168] irq event stamp: 3932044 [ 12.160402][ T168] hardirqs last enabled at (3932043): [] __down_trylock_console_sem+0x86/0xa0 [ 12.160405][ T168] hardirqs last disabled at (3932044): [] console_emit_next_record+0x3d4/0x4c0 [ 12.160407][ T168] softirqs last enabled at (3926778): [] handle_softirqs+0x67c/0x900 [ 12.160409][ T168] softirqs last disabled at (3926041): [] __irq_exit_rcu+0x145/0x1c0 [ 12.160412][ T168] Preemption disabled at: [ 12.160412][ T168] [<0000000000000000>] 0x0 [ 12.160420][ T168] CPU: 0 UID: 0 PID: 168 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.160424][ T168] Tainted: [W]=WARN [ 12.160425][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.160426][ T168] Call Trace: [ 12.160428][ T168] [ 12.160430][ T168] dump_stack_lvl+0x6f/0xa0 [ 12.160435][ T168] __might_resched.cold+0x1fe/0x2c1 [ 12.160440][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.160443][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 12.160449][ T168] __kmalloc_noprof+0x443/0x760 [ 12.160451][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 12.160457][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 12.160460][ T168] alloc_buf.isra.0+0x4b/0x260 [ 12.160463][ T168] put_chars+0x1e1/0x2f0 [ 12.160467][ T168] ? __send_to_port+0x420/0x420 [ 12.160468][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 12.160472][ T168] ? validate_chain+0x38b/0xc20 [ 12.160478][ T168] hvc_console_print+0x292/0x780 [ 12.160485][ T168] ? hvc_write+0x3a0/0x3a0 [ 12.160487][ T168] ? rcu_is_watching+0x16/0xd0 [ 12.160490][ T168] ? lock_acquire+0x13c/0x160 [ 12.160494][ T168] console_emit_next_record+0x22f/0x4c0 [ 12.160497][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 12.160499][ T168] ? console_flush_one_record+0x106/0x710 [ 12.160505][ T168] ? rcu_is_watching+0x16/0xd0 [ 12.160507][ T168] ? lock_acquire+0x13c/0x160 [ 12.160511][ T168] console_flush_one_record+0x46f/0x710 [ 12.160515][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 12.160516][ T168] ? __lock_acquire+0x518/0xc20 [ 12.160521][ T168] console_unlock+0xee/0x1f0 [ 12.160524][ T168] ? console_flush_one_record+0x710/0x710 [ 12.160525][ T168] ? rcu_is_watching+0x16/0xd0 [ 12.160527][ T168] ? lock_acquire+0x60/0x160 [ 12.160531][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.160533][ T168] ? vprintk_emit+0x320/0x3e0 [ 12.160536][ T168] vprintk_emit+0x37c/0x3e0 [ 12.160539][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 12.160540][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 12.160544][ T168] ? __lock_acquire+0x518/0xc20 [ 12.160547][ T168] _printk+0xc7/0x100 [ 12.160551][ T168] ? snapshot_read.cold+0x21/0x21 [ 12.160554][ T168] ? do_raw_spin_lock+0x131/0x280 [ 12.160557][ T168] ? __rwlock_init+0x150/0x150 [ 12.160561][ T168] ? do_raw_spin_lock+0x131/0x280 [ 12.160564][ T168] do_exit.cold+0x82/0x9c [ 12.160567][ T168] ? exit_notify+0x890/0x890 [ 12.160569][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 12.160572][ T168] ? rcu_is_watching+0x16/0xd0 [ 12.160576][ T168] do_group_exit+0xb8/0x370 [ 12.160579][ T168] __x64_sys_exit_group+0x3c/0x50 [ 12.160581][ T168] x64_sys_call+0x1567/0x1570 [ 12.160583][ T168] do_syscall_64+0xff/0x530 [ 12.160587][ T168] ? irq_exit_rcu+0x1a/0x30 [ 12.160590][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.160593][ T168] RIP: 0033:0x479678 [ 12.160595][ T168] Code: Unable to access opcode bytes at 0x47964e. [ 12.160596][ T168] RSP: 002b:00007ffc49a53048 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.160599][ T168] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 12.160600][ T168] RDX: 00000000220ea708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 12.160601][ T168] RBP: 00007ffc49a530a0 R08: 0000000000000000 R09: 00000000220eb3e0 [ 12.160602][ T168] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffc49a531d8 [ 12.160603][ T168] R13: 00007ffc49a53260 R14: 0000000000000000 R15: 000000000054d560 [ 12.160610][ T168]