[ 10.235854][ T199] packetdrill (199) used greatest stack depth: 22968 bytes left [ 10.235868][ T199] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.235870][ T199] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 199, name: packetdrill [ 10.235872][ T199] preempt_count: 2, expected: 0 [ 10.235873][ T199] RCU nest depth: 0, expected: 0 [ 10.235874][ T199] locks held by packetdrill/199: 5, last CPU#2: [ 10.235876][ T199] #0: ffffffffb8c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.235888][ T199] #1: ffffffffb8d69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.235893][ T199] #2: ffffffffb8d69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.235896][ T199] #3: ffffffffb8c89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.235899][ T199] #4: ffffffffb8c89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.235903][ T199] irq event stamp: 4062060 [ 10.235904][ T199] hardirqs last enabled at (4062059): [] __down_trylock_console_sem+0x86/0xa0 [ 10.235907][ T199] hardirqs last disabled at (4062060): [] console_emit_next_record+0x3d4/0x4c0 [ 10.235909][ T199] softirqs last enabled at (4061666): [] handle_softirqs+0x67c/0x900 [ 10.235911][ T199] softirqs last disabled at (4061601): [] __irq_exit_rcu+0x145/0x1c0 [ 10.235913][ T199] Preemption disabled at: [ 10.235914][ T199] [<0000000000000000>] 0x0 [ 10.235920][ T199] CPU: 2 UID: 0 PID: 199 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.235924][ T199] Tainted: [W]=WARN [ 10.235924][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.235926][ T199] Call Trace: [ 10.235928][ T199] [ 10.235929][ T199] dump_stack_lvl+0x6f/0xa0 [ 10.235935][ T199] __might_resched.cold+0x1fe/0x2c1 [ 10.235939][ T199] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.235942][ T199] ? __kmalloc_noprof+0xdb/0x760 [ 10.235947][ T199] __kmalloc_noprof+0x443/0x760 [ 10.235949][ T199] ? alloc_buf.isra.0+0x4b/0x260 [ 10.235955][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 10.235958][ T199] alloc_buf.isra.0+0x4b/0x260 [ 10.235961][ T199] put_chars+0x1e1/0x2f0 [ 10.235964][ T199] ? __send_to_port+0x420/0x420 [ 10.235966][ T199] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.235970][ T199] ? validate_chain+0x38b/0xc20 [ 10.235975][ T199] hvc_console_print+0x292/0x780 [ 10.235982][ T199] ? hvc_write+0x3a0/0x3a0 [ 10.235984][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.235986][ T199] ? lock_acquire+0x13c/0x160 [ 10.235990][ T199] console_emit_next_record+0x22f/0x4c0 [ 10.235993][ T199] ? devkmsg_read+0x4b0/0x4b0 [ 10.235994][ T199] ? console_flush_one_record+0x106/0x710 [ 10.235997][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.235999][ T199] ? lock_acquire+0x13c/0x160 [ 10.236003][ T199] console_flush_one_record+0x46f/0x710 [ 10.236006][ T199] ? console_emit_next_record+0x4c0/0x4c0 [ 10.236007][ T199] ? __lock_acquire+0x518/0xc20 [ 10.236013][ T199] console_unlock+0xee/0x1f0 [ 10.236015][ T199] ? console_flush_one_record+0x710/0x710 [ 10.236016][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.236018][ T199] ? lock_acquire+0x60/0x160 [ 10.236021][ T199] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.236023][ T199] ? vprintk_emit+0x320/0x3e0 [ 10.236026][ T199] vprintk_emit+0x37c/0x3e0 [ 10.236029][ T199] ? wake_up_klogd_work_func+0x90/0x90 [ 10.236030][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 10.236034][ T199] ? __lock_acquire+0x518/0xc20 [ 10.236037][ T199] _printk+0xc7/0x100 [ 10.236041][ T199] ? snapshot_read.cold+0x21/0x21 [ 10.236044][ T199] ? do_raw_spin_lock+0x131/0x280 [ 10.236046][ T199] ? __rwlock_init+0x150/0x150 [ 10.236054][ T199] ? do_raw_spin_lock+0x131/0x280 [ 10.236056][ T199] do_exit.cold+0x82/0x9c [ 10.236060][ T199] ? exit_notify+0x890/0x890 [ 10.236061][ T199] ? __lock_release.isra.0+0x69/0x1a0 [ 10.236064][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.236068][ T199] do_group_exit+0xb8/0x370 [ 10.236070][ T199] __x64_sys_exit_group+0x3c/0x50 [ 10.236072][ T199] x64_sys_call+0x1567/0x1570 [ 10.236075][ T199] do_syscall_64+0xff/0x530 [ 10.236079][ T199] ? irq_exit_rcu+0x1a/0x30 [ 10.236082][ T199] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.236084][ T199] RIP: 0033:0x479678 [ 10.236086][ T199] Code: Unable to access opcode bytes at 0x47964e. [ 10.236087][ T199] RSP: 002b:00007fffad8ab6d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.236090][ T199] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.236091][ T199] RDX: 000000002723a708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.236092][ T199] RBP: 00007fffad8ab730 R08: 0000000000000000 R09: 000000002723b3e0 [ 10.236093][ T199] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fffad8ab868 [ 10.236094][ T199] R13: 00007fffad8ab8f0 R14: 0000000000000000 R15: 000000000054d560 [ 10.236100][ T199]