[ 10.193767][ T200] packetdrill (200) used greatest stack depth: 24568 bytes left [ 10.193782][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.193784][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: packetdrill [ 10.193785][ T200] preempt_count: 2, expected: 0 [ 10.193786][ T200] RCU nest depth: 0, expected: 0 [ 10.193787][ T200] locks held by packetdrill/200: 5, last CPU#2: [ 10.193789][ T200] #0: ffffffffb56027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.193800][ T200] #1: ffffffffb5769cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.193805][ T200] #2: ffffffffb5769d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.193809][ T200] #3: ffffffffb5689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.193812][ T200] #4: ffffffffb5689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.193815][ T200] irq event stamp: 3861182 [ 10.193816][ T200] hardirqs last enabled at (3861181): [] __down_trylock_console_sem+0x86/0xa0 [ 10.193819][ T200] hardirqs last disabled at (3861182): [] console_emit_next_record+0x3d4/0x4c0 [ 10.193821][ T200] softirqs last enabled at (3860898): [] tcp_close+0x2b/0xb0 [ 10.193825][ T200] softirqs last disabled at (3860896): [] release_sock+0x21/0x240 [ 10.193828][ T200] Preemption disabled at: [ 10.193829][ T200] [<0000000000000000>] 0x0 [ 10.193835][ T200] CPU: 2 UID: 0 PID: 200 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.193839][ T200] Tainted: [W]=WARN [ 10.193840][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.193841][ T200] Call Trace: [ 10.193842][ T200] [ 10.193844][ T200] dump_stack_lvl+0x6f/0xa0 [ 10.193849][ T200] __might_resched.cold+0x1fe/0x2c1 [ 10.193853][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.193856][ T200] ? __kmalloc_noprof+0xdb/0x760 [ 10.193862][ T200] __kmalloc_noprof+0x443/0x760 [ 10.193864][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 10.193870][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 10.193873][ T200] alloc_buf.isra.0+0x4b/0x260 [ 10.193876][ T200] put_chars+0x1e1/0x2f0 [ 10.193879][ T200] ? __send_to_port+0x420/0x420 [ 10.193880][ T200] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.193884][ T200] ? validate_chain+0x38b/0xc20 [ 10.193890][ T200] hvc_console_print+0x292/0x780 [ 10.193896][ T200] ? hvc_write+0x3a0/0x3a0 [ 10.193898][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.193900][ T200] ? lock_acquire+0x13c/0x160 [ 10.193904][ T200] console_emit_next_record+0x22f/0x4c0 [ 10.193907][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 10.193908][ T200] ? console_flush_one_record+0x106/0x710 [ 10.193911][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.193913][ T200] ? lock_acquire+0x13c/0x160 [ 10.193917][ T200] console_flush_one_record+0x46f/0x710 [ 10.193920][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 10.193921][ T200] ? __lock_acquire+0x518/0xc20 [ 10.193927][ T200] console_unlock+0xee/0x1f0 [ 10.193929][ T200] ? console_flush_one_record+0x710/0x710 [ 10.193930][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.193932][ T200] ? lock_acquire+0x60/0x160 [ 10.193936][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.193938][ T200] ? vprintk_emit+0x320/0x3e0 [ 10.193941][ T200] vprintk_emit+0x37c/0x3e0 [ 10.193944][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 10.193946][ T200] ? __lock_acquire+0x518/0xc20 [ 10.193950][ T200] _printk+0xc7/0x100 [ 10.193954][ T200] ? snapshot_read.cold+0x21/0x21 [ 10.193956][ T200] ? do_raw_spin_lock+0x131/0x280 [ 10.193959][ T200] ? __rwlock_init+0x150/0x150 [ 10.193963][ T200] ? do_raw_spin_lock+0x131/0x280 [ 10.193966][ T200] do_exit.cold+0x82/0x9c [ 10.193969][ T200] ? exit_notify+0x890/0x890 [ 10.193971][ T200] ? __lock_release.isra.0+0x69/0x1a0 [ 10.193973][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.193977][ T200] do_group_exit+0xb8/0x370 [ 10.193980][ T200] __x64_sys_exit_group+0x3c/0x50 [ 10.193982][ T200] x64_sys_call+0x1567/0x1570 [ 10.193985][ T200] do_syscall_64+0xff/0x530 [ 10.193988][ T200] ? irq_exit_rcu+0x1a/0x30 [ 10.193991][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.193993][ T200] RIP: 0033:0x479678 [ 10.193995][ T200] Code: Unable to access opcode bytes at 0x47964e. [ 10.193996][ T200] RSP: 002b:00007ffde80672e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.193999][ T200] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.194000][ T200] RDX: 000000002dac8708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.194001][ T200] RBP: 00007ffde8067340 R08: 0000000000000000 R09: 000000002dac93e0 [ 10.194002][ T200] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffde8067478 [ 10.194003][ T200] R13: 00007ffde8067500 R14: 0000000000000000 R15: 000000000054d560 [ 10.194009][ T200]