[ 12.918150][ T204] packetdrill (204) used greatest stack depth: 24160 bytes left [ 12.918168][ T204] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.918170][ T204] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 204, name: packetdrill [ 12.918172][ T204] preempt_count: 2, expected: 0 [ 12.918173][ T204] RCU nest depth: 0, expected: 0 [ 12.918173][ T204] locks held by packetdrill/204: 5, last CPU#3: [ 12.918175][ T204] #0: ffffffffb52027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.918188][ T204] #1: ffffffffb5369cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.918194][ T204] #2: ffffffffb5369d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.918197][ T204] #3: ffffffffb5289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.918200][ T204] #4: ffffffffb5289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 12.918204][ T204] irq event stamp: 3186988 [ 12.918205][ T204] hardirqs last enabled at (3186987): [] __down_trylock_console_sem+0x86/0xa0 [ 12.918208][ T204] hardirqs last disabled at (3186988): [] console_emit_next_record+0x3d4/0x4c0 [ 12.918211][ T204] softirqs last enabled at (3186758): [] handle_softirqs+0x67c/0x900 [ 12.918214][ T204] softirqs last disabled at (3186753): [] __irq_exit_rcu+0x145/0x1c0 [ 12.918217][ T204] Preemption disabled at: [ 12.918218][ T204] [<0000000000000000>] 0x0 [ 12.918226][ T204] CPU: 3 UID: 0 PID: 204 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.918230][ T204] Tainted: [W]=WARN [ 12.918231][ T204] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.918233][ T204] Call Trace: [ 12.918235][ T204] [ 12.918236][ T204] dump_stack_lvl+0x6f/0xa0 [ 12.918242][ T204] __might_resched.cold+0x1fe/0x2c1 [ 12.918246][ T204] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.918250][ T204] ? __kmalloc_noprof+0xdb/0x760 [ 12.918255][ T204] __kmalloc_noprof+0x443/0x760 [ 12.918257][ T204] ? alloc_buf.isra.0+0x4b/0x260 [ 12.918264][ T204] ? do_raw_spin_unlock+0x59/0x250 [ 12.918267][ T204] alloc_buf.isra.0+0x4b/0x260 [ 12.918270][ T204] put_chars+0x1e1/0x2f0 [ 12.918273][ T204] ? __send_to_port+0x420/0x420 [ 12.918275][ T204] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 12.918279][ T204] ? validate_chain+0x38b/0xc20 [ 12.918285][ T204] hvc_console_print+0x292/0x780 [ 12.918291][ T204] ? hvc_write+0x3a0/0x3a0 [ 12.918293][ T204] ? rcu_is_watching+0x16/0xd0 [ 12.918295][ T204] ? lock_acquire+0x13c/0x160 [ 12.918300][ T204] console_emit_next_record+0x22f/0x4c0 [ 12.918303][ T204] ? devkmsg_read+0x4b0/0x4b0 [ 12.918305][ T204] ? console_flush_one_record+0x106/0x710 [ 12.918307][ T204] ? rcu_is_watching+0x16/0xd0 [ 12.918309][ T204] ? lock_acquire+0x13c/0x160 [ 12.918313][ T204] console_flush_one_record+0x46f/0x710 [ 12.918316][ T204] ? console_emit_next_record+0x4c0/0x4c0 [ 12.918318][ T204] ? __lock_acquire+0x518/0xc20 [ 12.918323][ T204] console_unlock+0xee/0x1f0 [ 12.918325][ T204] ? console_flush_one_record+0x710/0x710 [ 12.918327][ T204] ? rcu_is_watching+0x16/0xd0 [ 12.918328][ T204] ? lock_acquire+0x60/0x160 [ 12.918336][ T204] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.918338][ T204] ? vprintk_emit+0x320/0x3e0 [ 12.918341][ T204] vprintk_emit+0x37c/0x3e0 [ 12.918344][ T204] ? wake_up_klogd_work_func+0x90/0x90 [ 12.918347][ T204] ? __lock_acquire+0x518/0xc20 [ 12.918351][ T204] _printk+0xc7/0x100 [ 12.918355][ T204] ? snapshot_read.cold+0x21/0x21 [ 12.918358][ T204] ? do_raw_spin_lock+0x131/0x280 [ 12.918360][ T204] ? __rwlock_init+0x150/0x150 [ 12.918364][ T204] ? do_raw_spin_lock+0x131/0x280 [ 12.918367][ T204] do_exit.cold+0x82/0x9c [ 12.918370][ T204] ? exit_notify+0x890/0x890 [ 12.918372][ T204] ? __lock_release.isra.0+0x69/0x1a0 [ 12.918375][ T204] ? rcu_is_watching+0x16/0xd0 [ 12.918378][ T204] do_group_exit+0xb8/0x370 [ 12.918381][ T204] __x64_sys_exit_group+0x3c/0x50 [ 12.918383][ T204] x64_sys_call+0x1567/0x1570 [ 12.918386][ T204] do_syscall_64+0xff/0x530 [ 12.918390][ T204] ? irq_exit_rcu+0x1a/0x30 [ 12.918393][ T204] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.918395][ T204] RIP: 0033:0x479678 [ 12.918397][ T204] Code: Unable to access opcode bytes at 0x47964e. [ 12.918398][ T204] RSP: 002b:00007ffeab081098 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.918401][ T204] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 12.918402][ T204] RDX: 0000000012809708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 12.918403][ T204] RBP: 00007ffeab0810f0 R08: 0000000000000000 R09: 000000001280a3e0 [ 12.918404][ T204] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffeab081228 [ 12.918405][ T204] R13: 00007ffeab0812b0 R14: 0000000000000000 R15: 000000000054d560 [ 12.918411][ T204]