[ 16.085223][ T199] packetdrill (199) used greatest stack depth: 23584 bytes left [ 16.085240][ T199] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 16.085242][ T199] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 199, name: packetdrill [ 16.085244][ T199] preempt_count: 2, expected: 0 [ 16.085245][ T199] RCU nest depth: 0, expected: 0 [ 16.085246][ T199] locks held by packetdrill/199: 5, last CPU#3: [ 16.085248][ T199] #0: ffffffffa02027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 16.085260][ T199] #1: ffffffffa0369cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 16.085265][ T199] #2: ffffffffa0369d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 16.085268][ T199] #3: ffffffffa0289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 16.085272][ T199] #4: ffffffffa0289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 16.085275][ T199] irq event stamp: 3465266 [ 16.085276][ T199] hardirqs last enabled at (3465265): [] __down_trylock_console_sem+0x86/0xa0 [ 16.085279][ T199] hardirqs last disabled at (3465266): [] console_emit_next_record+0x3d4/0x4c0 [ 16.085281][ T199] softirqs last enabled at (3465038): [] tcp_close+0x2b/0xb0 [ 16.085285][ T199] softirqs last disabled at (3465036): [] release_sock+0x21/0x240 [ 16.085289][ T199] Preemption disabled at: [ 16.085290][ T199] [<0000000000000000>] 0x0 [ 16.085296][ T199] CPU: 3 UID: 0 PID: 199 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 16.085300][ T199] Tainted: [W]=WARN [ 16.085301][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.085303][ T199] Call Trace: [ 16.085305][ T199] [ 16.085307][ T199] dump_stack_lvl+0x6f/0xa0 [ 16.085315][ T199] __might_resched.cold+0x1fe/0x2c1 [ 16.085320][ T199] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 16.085323][ T199] ? __kmalloc_noprof+0xdb/0x760 [ 16.085328][ T199] __kmalloc_noprof+0x443/0x760 [ 16.085330][ T199] ? alloc_buf.isra.0+0x4b/0x260 [ 16.085340][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 16.085343][ T199] alloc_buf.isra.0+0x4b/0x260 [ 16.085346][ T199] put_chars+0x1e1/0x2f0 [ 16.085349][ T199] ? __send_to_port+0x420/0x420 [ 16.085351][ T199] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 16.085355][ T199] ? validate_chain+0x38b/0xc20 [ 16.085360][ T199] hvc_console_print+0x292/0x780 [ 16.085366][ T199] ? hvc_write+0x3a0/0x3a0 [ 16.085369][ T199] ? rcu_is_watching+0x16/0xd0 [ 16.085371][ T199] ? lock_acquire+0x13c/0x160 [ 16.085375][ T199] console_emit_next_record+0x22f/0x4c0 [ 16.085378][ T199] ? devkmsg_read+0x4b0/0x4b0 [ 16.085379][ T199] ? console_flush_one_record+0x106/0x710 [ 16.085382][ T199] ? rcu_is_watching+0x16/0xd0 [ 16.085384][ T199] ? lock_acquire+0x13c/0x160 [ 16.085388][ T199] console_flush_one_record+0x46f/0x710 [ 16.085391][ T199] ? console_emit_next_record+0x4c0/0x4c0 [ 16.085393][ T199] ? __lock_acquire+0x518/0xc20 [ 16.085398][ T199] console_unlock+0xee/0x1f0 [ 16.085400][ T199] ? console_flush_one_record+0x710/0x710 [ 16.085402][ T199] ? rcu_is_watching+0x16/0xd0 [ 16.085403][ T199] ? lock_acquire+0x60/0x160 [ 16.085407][ T199] ? __down_trylock_console_sem+0x5e/0xa0 [ 16.085409][ T199] ? vprintk_emit+0x320/0x3e0 [ 16.085412][ T199] vprintk_emit+0x37c/0x3e0 [ 16.085415][ T199] ? wake_up_klogd_work_func+0x90/0x90 [ 16.085418][ T199] ? __lock_acquire+0x518/0xc20 [ 16.085421][ T199] _printk+0xc7/0x100 [ 16.085426][ T199] ? snapshot_read.cold+0x21/0x21 [ 16.085428][ T199] ? do_raw_spin_lock+0x131/0x280 [ 16.085431][ T199] ? __rwlock_init+0x150/0x150 [ 16.085435][ T199] ? do_raw_spin_lock+0x131/0x280 [ 16.085438][ T199] do_exit.cold+0x82/0x9c [ 16.085441][ T199] ? exit_notify+0x890/0x890 [ 16.085443][ T199] ? __lock_release.isra.0+0x69/0x1a0 [ 16.085445][ T199] ? rcu_is_watching+0x16/0xd0 [ 16.085449][ T199] do_group_exit+0xb8/0x370 [ 16.085452][ T199] __x64_sys_exit_group+0x3c/0x50 [ 16.085454][ T199] x64_sys_call+0x1567/0x1570 [ 16.085457][ T199] do_syscall_64+0xff/0x530 [ 16.085460][ T199] ? irq_exit_rcu+0x1a/0x30 [ 16.085463][ T199] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 16.085466][ T199] RIP: 0033:0x479678 [ 16.085468][ T199] Code: Unable to access opcode bytes at 0x47964e. [ 16.085469][ T199] RSP: 002b:00007ffd17a4bd78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 16.085472][ T199] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 16.085473][ T199] RDX: 0000000038bc7708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 16.085474][ T199] RBP: 00007ffd17a4bdd0 R08: 0000000000000000 R09: 0000000038bc83e0 [ 16.085475][ T199] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffd17a4bf08 [ 16.085476][ T199] R13: 00007ffd17a4bf90 R14: 0000000000000000 R15: 000000000054d560 [ 16.085482][ T199]