[ 15.805601][ T200] packetdrill (200) used greatest stack depth: 23832 bytes left [ 15.805618][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 15.805620][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: packetdrill [ 15.805622][ T200] preempt_count: 2, expected: 0 [ 15.805623][ T200] RCU nest depth: 0, expected: 0 [ 15.805624][ T200] locks held by packetdrill/200: 5, last CPU#2: [ 15.805626][ T200] #0: ffffffff856027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 15.805638][ T200] #1: ffffffff85769cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 15.805643][ T200] #2: ffffffff85769d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 15.805646][ T200] #3: ffffffff85689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 15.805649][ T200] #4: ffffffff85689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 15.805652][ T200] irq event stamp: 4050580 [ 15.805653][ T200] hardirqs last enabled at (4050579): [] __down_trylock_console_sem+0x86/0xa0 [ 15.805657][ T200] hardirqs last disabled at (4050580): [] console_emit_next_record+0x3d4/0x4c0 [ 15.805658][ T200] softirqs last enabled at (4050352): [] tcp_close+0x2b/0xb0 [ 15.805662][ T200] softirqs last disabled at (4050350): [] release_sock+0x21/0x240 [ 15.805666][ T200] Preemption disabled at: [ 15.805666][ T200] [<0000000000000000>] 0x0 [ 15.805673][ T200] CPU: 2 UID: 0 PID: 200 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 15.805676][ T200] Tainted: [W]=WARN [ 15.805677][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.805679][ T200] Call Trace: [ 15.805680][ T200] [ 15.805682][ T200] dump_stack_lvl+0x6f/0xa0 [ 15.805687][ T200] __might_resched.cold+0x1fe/0x2c1 [ 15.805692][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 15.805695][ T200] ? __kmalloc_noprof+0xdb/0x760 [ 15.805700][ T200] __kmalloc_noprof+0x443/0x760 [ 15.805703][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 15.805709][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 15.805711][ T200] alloc_buf.isra.0+0x4b/0x260 [ 15.805715][ T200] put_chars+0x1e1/0x2f0 [ 15.805718][ T200] ? __send_to_port+0x420/0x420 [ 15.805719][ T200] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 15.805723][ T200] ? validate_chain+0x38b/0xc20 [ 15.805729][ T200] hvc_console_print+0x292/0x780 [ 15.805735][ T200] ? hvc_write+0x3a0/0x3a0 [ 15.805738][ T200] ? rcu_is_watching+0x16/0xd0 [ 15.805739][ T200] ? lock_acquire+0x13c/0x160 [ 15.805743][ T200] console_emit_next_record+0x22f/0x4c0 [ 15.805747][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 15.805748][ T200] ? console_flush_one_record+0x106/0x710 [ 15.805751][ T200] ? rcu_is_watching+0x16/0xd0 [ 15.805752][ T200] ? lock_acquire+0x13c/0x160 [ 15.805756][ T200] console_flush_one_record+0x46f/0x710 [ 15.805760][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 15.805761][ T200] ? __lock_acquire+0x518/0xc20 [ 15.805766][ T200] console_unlock+0xee/0x1f0 [ 15.805769][ T200] ? console_flush_one_record+0x710/0x710 [ 15.805770][ T200] ? rcu_is_watching+0x16/0xd0 [ 15.805772][ T200] ? lock_acquire+0x60/0x160 [ 15.805775][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 15.805777][ T200] ? vprintk_emit+0x320/0x3e0 [ 15.805780][ T200] vprintk_emit+0x37c/0x3e0 [ 15.805783][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 15.805786][ T200] ? __lock_acquire+0x518/0xc20 [ 15.805790][ T200] _printk+0xc7/0x100 [ 15.805794][ T200] ? snapshot_read.cold+0x21/0x21 [ 15.805796][ T200] ? do_raw_spin_lock+0x131/0x280 [ 15.805799][ T200] ? __rwlock_init+0x150/0x150 [ 15.805803][ T200] ? do_raw_spin_lock+0x131/0x280 [ 15.805806][ T200] do_exit.cold+0x82/0x9c [ 15.805809][ T200] ? exit_notify+0x890/0x890 [ 15.805811][ T200] ? __lock_release.isra.0+0x69/0x1a0 [ 15.805814][ T200] ? rcu_is_watching+0x16/0xd0 [ 15.805817][ T200] do_group_exit+0xb8/0x370 [ 15.805820][ T200] __x64_sys_exit_group+0x3c/0x50 [ 15.805822][ T200] x64_sys_call+0x1567/0x1570 [ 15.805825][ T200] do_syscall_64+0xff/0x530 [ 15.805828][ T200] ? irq_exit_rcu+0x1a/0x30 [ 15.805831][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 15.805833][ T200] RIP: 0033:0x479678 [ 15.805836][ T200] Code: Unable to access opcode bytes at 0x47964e. [ 15.805837][ T200] RSP: 002b:00007ffcc20c2ee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 15.805839][ T200] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 15.805841][ T200] RDX: 0000000035d4c708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 15.805841][ T200] RBP: 00007ffcc20c2f40 R08: 0000000000000000 R09: 0000000035d4d3e0 [ 15.805842][ T200] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffcc20c3078 [ 15.805843][ T200] R13: 00007ffcc20c3100 R14: 0000000000000000 R15: 000000000054d560 [ 15.805849][ T200]