[ 9.879805][ T168] packetdrill (168) used greatest stack depth: 24232 bytes left [ 9.879820][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.879822][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: packetdrill [ 9.879823][ T168] preempt_count: 2, expected: 0 [ 9.879824][ T168] RCU nest depth: 0, expected: 0 [ 9.879825][ T168] locks held by packetdrill/168: 5, last CPU#0: [ 9.879827][ T168] #0: ffffffffba0027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.879840][ T168] #1: ffffffffba169cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.879845][ T168] #2: ffffffffba169d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.879848][ T168] #3: ffffffffba089660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.879851][ T168] #4: ffffffffba089560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.879854][ T168] irq event stamp: 4072500 [ 9.879855][ T168] hardirqs last enabled at (4072499): [] __down_trylock_console_sem+0x86/0xa0 [ 9.879859][ T168] hardirqs last disabled at (4072500): [] console_emit_next_record+0x3d4/0x4c0 [ 9.879860][ T168] softirqs last enabled at (4072494): [] handle_softirqs+0x67c/0x900 [ 9.879862][ T168] softirqs last disabled at (4072485): [] __irq_exit_rcu+0x145/0x1c0 [ 9.879865][ T168] Preemption disabled at: [ 9.879865][ T168] [<0000000000000000>] 0x0 [ 9.879872][ T168] CPU: 0 UID: 0 PID: 168 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.879876][ T168] Tainted: [W]=WARN [ 9.879876][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.879878][ T168] Call Trace: [ 9.879879][ T168] [ 9.879881][ T168] dump_stack_lvl+0x6f/0xa0 [ 9.879887][ T168] __might_resched.cold+0x1fe/0x2c1 [ 9.879891][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.879895][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 9.879900][ T168] __kmalloc_noprof+0x443/0x760 [ 9.879902][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 9.879909][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 9.879912][ T168] alloc_buf.isra.0+0x4b/0x260 [ 9.879915][ T168] put_chars+0x1e1/0x2f0 [ 9.879918][ T168] ? __send_to_port+0x420/0x420 [ 9.879920][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.879924][ T168] ? validate_chain+0x38b/0xc20 [ 9.879930][ T168] hvc_console_print+0x292/0x780 [ 9.879937][ T168] ? hvc_write+0x3a0/0x3a0 [ 9.879939][ T168] ? rcu_is_watching+0x16/0xd0 [ 9.879941][ T168] ? lock_acquire+0x13c/0x160 [ 9.879945][ T168] console_emit_next_record+0x22f/0x4c0 [ 9.879949][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 9.879950][ T168] ? console_flush_one_record+0x106/0x710 [ 9.879953][ T168] ? rcu_is_watching+0x16/0xd0 [ 9.879955][ T168] ? lock_acquire+0x13c/0x160 [ 9.879959][ T168] console_flush_one_record+0x46f/0x710 [ 9.879962][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 9.879964][ T168] ? __lock_acquire+0x518/0xc20 [ 9.879969][ T168] console_unlock+0xee/0x1f0 [ 9.879971][ T168] ? console_flush_one_record+0x710/0x710 [ 9.879973][ T168] ? rcu_is_watching+0x16/0xd0 [ 9.879975][ T168] ? lock_acquire+0x60/0x160 [ 9.879978][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.879980][ T168] ? vprintk_emit+0x320/0x3e0 [ 9.879983][ T168] vprintk_emit+0x37c/0x3e0 [ 9.879987][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 9.879989][ T168] ? __lock_acquire+0x518/0xc20 [ 9.879993][ T168] _printk+0xc7/0x100 [ 9.879997][ T168] ? snapshot_read.cold+0x21/0x21 [ 9.880000][ T168] ? do_raw_spin_lock+0x131/0x280 [ 9.880003][ T168] ? __rwlock_init+0x150/0x150 [ 9.880007][ T168] ? do_raw_spin_lock+0x131/0x280 [ 9.880010][ T168] do_exit.cold+0x82/0x9c [ 9.880013][ T168] ? exit_notify+0x890/0x890 [ 9.880015][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 9.880018][ T168] ? rcu_is_watching+0x16/0xd0 [ 9.880021][ T168] do_group_exit+0xb8/0x370 [ 9.880024][ T168] __x64_sys_exit_group+0x3c/0x50 [ 9.880027][ T168] x64_sys_call+0x1567/0x1570 [ 9.880029][ T168] do_syscall_64+0xff/0x530 [ 9.880033][ T168] ? irq_exit_rcu+0x1a/0x30 [ 9.880036][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.880038][ T168] RIP: 0033:0x479678 [ 9.880040][ T168] Code: Unable to access opcode bytes at 0x47964e. [ 9.880042][ T168] RSP: 002b:00007fff687744d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.880044][ T168] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 9.880045][ T168] RDX: 000000001cfdc708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 9.880046][ T168] RBP: 00007fff68774530 R08: 0000000000000000 R09: 000000001cfdd3e0 [ 9.880047][ T168] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fff68774668 [ 9.880048][ T168] R13: 00007fff687746f0 R14: 0000000000000000 R15: 000000000054d560 [ 9.880054][ T168]