[ 12.105960][ T200] packetdrill (200) used greatest stack depth: 24640 bytes left [ 12.105982][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.105984][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: packetdrill [ 12.105986][ T200] preempt_count: 2, expected: 0 [ 12.105987][ T200] RCU nest depth: 0, expected: 0 [ 12.105988][ T200] locks held by packetdrill/200: 5, last CPU#3: [ 12.105990][ T200] #0: ffffffffa0e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.106003][ T200] #1: ffffffffa0f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.106009][ T200] #2: ffffffffa0f69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.106012][ T200] #3: ffffffffa0e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.106016][ T200] #4: ffffffffa0e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 12.106020][ T200] irq event stamp: 3033076 [ 12.106020][ T200] hardirqs last enabled at (3033075): [] __down_trylock_console_sem+0x86/0xa0 [ 12.106024][ T200] hardirqs last disabled at (3033076): [] console_emit_next_record+0x3d4/0x4c0 [ 12.106026][ T200] softirqs last enabled at (3032668): [] handle_softirqs+0x67c/0x900 [ 12.106029][ T200] softirqs last disabled at (3032545): [] __irq_exit_rcu+0x145/0x1c0 [ 12.106032][ T200] Preemption disabled at: [ 12.106032][ T200] [<0000000000000000>] 0x0 [ 12.106040][ T200] CPU: 3 UID: 0 PID: 200 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.106043][ T200] Tainted: [W]=WARN [ 12.106044][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.106045][ T200] Call Trace: [ 12.106047][ T200] [ 12.106049][ T200] dump_stack_lvl+0x6f/0xa0 [ 12.106054][ T200] __might_resched.cold+0x1fe/0x2c1 [ 12.106058][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.106062][ T200] ? __kmalloc_noprof+0xdb/0x760 [ 12.106071][ T200] __kmalloc_noprof+0x443/0x760 [ 12.106073][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 12.106079][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 12.106082][ T200] alloc_buf.isra.0+0x4b/0x260 [ 12.106086][ T200] put_chars+0x1e1/0x2f0 [ 12.106089][ T200] ? __send_to_port+0x420/0x420 [ 12.106091][ T200] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 12.106095][ T200] ? validate_chain+0x38b/0xc20 [ 12.106100][ T200] hvc_console_print+0x292/0x780 [ 12.106107][ T200] ? hvc_write+0x3a0/0x3a0 [ 12.106110][ T200] ? rcu_is_watching+0x16/0xd0 [ 12.106112][ T200] ? lock_acquire+0x13c/0x160 [ 12.106116][ T200] console_emit_next_record+0x22f/0x4c0 [ 12.106119][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 12.106120][ T200] ? console_flush_one_record+0x106/0x710 [ 12.106123][ T200] ? rcu_is_watching+0x16/0xd0 [ 12.106125][ T200] ? lock_acquire+0x13c/0x160 [ 12.106129][ T200] console_flush_one_record+0x46f/0x710 [ 12.106132][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 12.106134][ T200] ? __lock_acquire+0x518/0xc20 [ 12.106139][ T200] console_unlock+0xee/0x1f0 [ 12.106141][ T200] ? console_flush_one_record+0x710/0x710 [ 12.106143][ T200] ? rcu_is_watching+0x16/0xd0 [ 12.106144][ T200] ? lock_acquire+0x60/0x160 [ 12.106148][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.106150][ T200] ? vprintk_emit+0x320/0x3e0 [ 12.106153][ T200] vprintk_emit+0x37c/0x3e0 [ 12.106156][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 12.106158][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 12.106161][ T200] ? __lock_acquire+0x518/0xc20 [ 12.106164][ T200] _printk+0xc7/0x100 [ 12.106168][ T200] ? snapshot_read.cold+0x21/0x21 [ 12.106171][ T200] ? do_raw_spin_lock+0x131/0x280 [ 12.106174][ T200] ? __rwlock_init+0x150/0x150 [ 12.106178][ T200] ? do_raw_spin_lock+0x131/0x280 [ 12.106181][ T200] do_exit.cold+0x82/0x9c [ 12.106184][ T200] ? exit_notify+0x890/0x890 [ 12.106185][ T200] ? __lock_release.isra.0+0x69/0x1a0 [ 12.106188][ T200] ? rcu_is_watching+0x16/0xd0 [ 12.106192][ T200] do_group_exit+0xb8/0x370 [ 12.106195][ T200] __x64_sys_exit_group+0x3c/0x50 [ 12.106197][ T200] x64_sys_call+0x1567/0x1570 [ 12.106200][ T200] do_syscall_64+0xff/0x530 [ 12.106203][ T200] ? irq_exit_rcu+0x1a/0x30 [ 12.106206][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.106209][ T200] RIP: 0033:0x479678 [ 12.106211][ T200] Code: Unable to access opcode bytes at 0x47964e. [ 12.106212][ T200] RSP: 002b:00007ffe3f409688 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.106214][ T200] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 12.106215][ T200] RDX: 0000000040496708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 12.106216][ T200] RBP: 00007ffe3f4096e0 R08: 0000000000000000 R09: 00000000404973e0 [ 12.106217][ T200] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffe3f409818 [ 12.106218][ T200] R13: 00007ffe3f4098a0 R14: 0000000000000000 R15: 000000000054d560 [ 12.106225][ T200]