[ 9.339899][ T168] packetdrill (168) used greatest stack depth: 24152 bytes left [ 9.339914][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.339916][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: packetdrill [ 9.339917][ T168] preempt_count: 2, expected: 0 [ 9.339918][ T168] RCU nest depth: 0, expected: 0 [ 9.339919][ T168] locks held by packetdrill/168: 5, last CPU#0: [ 9.339921][ T168] #0: ffffffff898027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.339933][ T168] #1: ffffffff89969cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.339938][ T168] #2: ffffffff89969d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.339942][ T168] #3: ffffffff89889660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.339944][ T168] #4: ffffffff89889560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.339947][ T168] irq event stamp: 4037000 [ 9.339948][ T168] hardirqs last enabled at (4036999): [] __down_trylock_console_sem+0x86/0xa0 [ 9.339952][ T168] hardirqs last disabled at (4037000): [] console_emit_next_record+0x3d4/0x4c0 [ 9.339953][ T168] softirqs last enabled at (4036752): [] tcp_close+0x2b/0xb0 [ 9.339957][ T168] softirqs last disabled at (4036750): [] release_sock+0x21/0x240 [ 9.339961][ T168] Preemption disabled at: [ 9.339961][ T168] [<0000000000000000>] 0x0 [ 9.339969][ T168] CPU: 0 UID: 0 PID: 168 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.339972][ T168] Tainted: [W]=WARN [ 9.339973][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.339975][ T168] Call Trace: [ 9.339976][ T168] [ 9.339978][ T168] dump_stack_lvl+0x6f/0xa0 [ 9.339983][ T168] __might_resched.cold+0x1fe/0x2c1 [ 9.339988][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.339991][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 9.339996][ T168] __kmalloc_noprof+0x443/0x760 [ 9.339998][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 9.340004][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 9.340007][ T168] alloc_buf.isra.0+0x4b/0x260 [ 9.340010][ T168] put_chars+0x1e1/0x2f0 [ 9.340013][ T168] ? __send_to_port+0x420/0x420 [ 9.340015][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.340019][ T168] ? validate_chain+0x38b/0xc20 [ 9.340024][ T168] hvc_console_print+0x292/0x780 [ 9.340031][ T168] ? hvc_write+0x3a0/0x3a0 [ 9.340033][ T168] ? rcu_is_watching+0x16/0xd0 [ 9.340035][ T168] ? lock_acquire+0x13c/0x160 [ 9.340039][ T168] console_emit_next_record+0x22f/0x4c0 [ 9.340043][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 9.340044][ T168] ? console_flush_one_record+0x106/0x710 [ 9.340046][ T168] ? rcu_is_watching+0x16/0xd0 [ 9.340048][ T168] ? lock_acquire+0x13c/0x160 [ 9.340052][ T168] console_flush_one_record+0x46f/0x710 [ 9.340056][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 9.340057][ T168] ? __lock_acquire+0x518/0xc20 [ 9.340062][ T168] console_unlock+0xee/0x1f0 [ 9.340064][ T168] ? console_flush_one_record+0x710/0x710 [ 9.340066][ T168] ? rcu_is_watching+0x16/0xd0 [ 9.340067][ T168] ? lock_acquire+0x60/0x160 [ 9.340071][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.340073][ T168] ? vprintk_emit+0x320/0x3e0 [ 9.340076][ T168] vprintk_emit+0x37c/0x3e0 [ 9.340079][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 9.340080][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 9.340083][ T168] ? __lock_acquire+0x518/0xc20 [ 9.340087][ T168] _printk+0xc7/0x100 [ 9.340091][ T168] ? snapshot_read.cold+0x21/0x21 [ 9.340093][ T168] ? do_raw_spin_lock+0x131/0x280 [ 9.340096][ T168] ? __rwlock_init+0x150/0x150 [ 9.340100][ T168] ? do_raw_spin_lock+0x131/0x280 [ 9.340103][ T168] do_exit.cold+0x82/0x9c [ 9.340106][ T168] ? exit_notify+0x890/0x890 [ 9.340108][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 9.340110][ T168] ? rcu_is_watching+0x16/0xd0 [ 9.340114][ T168] do_group_exit+0xb8/0x370 [ 9.340117][ T168] __x64_sys_exit_group+0x3c/0x50 [ 9.340119][ T168] x64_sys_call+0x1567/0x1570 [ 9.340121][ T168] do_syscall_64+0xff/0x530 [ 9.340125][ T168] ? irq_exit_rcu+0x1a/0x30 [ 9.340128][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.340130][ T168] RIP: 0033:0x479678 [ 9.340132][ T168] Code: Unable to access opcode bytes at 0x47964e. [ 9.340133][ T168] RSP: 002b:00007fff808898c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.340135][ T168] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 9.340137][ T168] RDX: 00000000100bb708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 9.340138][ T168] RBP: 00007fff80889920 R08: 0000000000000000 R09: 00000000100bc3e0 [ 9.340139][ T168] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fff80889a58 [ 9.340140][ T168] R13: 00007fff80889ae0 R14: 0000000000000000 R15: 000000000054d560 [ 9.340146][ T168]