[ 9.933436][ T199] packetdrill (199) used greatest stack depth: 23952 bytes left [ 9.933451][ T199] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.933453][ T199] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 199, name: packetdrill [ 9.933455][ T199] preempt_count: 2, expected: 0 [ 9.933456][ T199] RCU nest depth: 0, expected: 0 [ 9.933457][ T199] locks held by packetdrill/199: 5, last CPU#2: [ 9.933459][ T199] #0: ffffffff91c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.933470][ T199] #1: ffffffff91d69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.933475][ T199] #2: ffffffff91d69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.933478][ T199] #3: ffffffff91c89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.933481][ T199] #4: ffffffff91c89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.933485][ T199] irq event stamp: 4073618 [ 9.933485][ T199] hardirqs last enabled at (4073617): [] __down_trylock_console_sem+0x86/0xa0 [ 9.933488][ T199] hardirqs last disabled at (4073618): [] console_emit_next_record+0x3d4/0x4c0 [ 9.933490][ T199] softirqs last enabled at (4073370): [] tcp_close+0x2b/0xb0 [ 9.933494][ T199] softirqs last disabled at (4073368): [] release_sock+0x21/0x240 [ 9.933497][ T199] Preemption disabled at: [ 9.933498][ T199] [<0000000000000000>] 0x0 [ 9.933505][ T199] CPU: 2 UID: 0 PID: 199 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.933508][ T199] Tainted: [W]=WARN [ 9.933509][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.933511][ T199] Call Trace: [ 9.933513][ T199] [ 9.933514][ T199] dump_stack_lvl+0x6f/0xa0 [ 9.933520][ T199] __might_resched.cold+0x1fe/0x2c1 [ 9.933524][ T199] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.933527][ T199] ? __kmalloc_noprof+0xdb/0x760 [ 9.933532][ T199] __kmalloc_noprof+0x443/0x760 [ 9.933534][ T199] ? alloc_buf.isra.0+0x4b/0x260 [ 9.933540][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 9.933543][ T199] alloc_buf.isra.0+0x4b/0x260 [ 9.933546][ T199] put_chars+0x1e1/0x2f0 [ 9.933549][ T199] ? __send_to_port+0x420/0x420 [ 9.933551][ T199] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.933555][ T199] ? validate_chain+0x38b/0xc20 [ 9.933561][ T199] hvc_console_print+0x292/0x780 [ 9.933567][ T199] ? hvc_write+0x3a0/0x3a0 [ 9.933569][ T199] ? rcu_is_watching+0x16/0xd0 [ 9.933571][ T199] ? lock_acquire+0x13c/0x160 [ 9.933575][ T199] console_emit_next_record+0x22f/0x4c0 [ 9.933578][ T199] ? devkmsg_read+0x4b0/0x4b0 [ 9.933579][ T199] ? console_flush_one_record+0x106/0x710 [ 9.933582][ T199] ? rcu_is_watching+0x16/0xd0 [ 9.933584][ T199] ? lock_acquire+0x13c/0x160 [ 9.933588][ T199] console_flush_one_record+0x46f/0x710 [ 9.933591][ T199] ? console_emit_next_record+0x4c0/0x4c0 [ 9.933592][ T199] ? __lock_acquire+0x518/0xc20 [ 9.933597][ T199] console_unlock+0xee/0x1f0 [ 9.933600][ T199] ? console_flush_one_record+0x710/0x710 [ 9.933601][ T199] ? rcu_is_watching+0x16/0xd0 [ 9.933603][ T199] ? lock_acquire+0x60/0x160 [ 9.933606][ T199] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.933608][ T199] ? vprintk_emit+0x320/0x3e0 [ 9.933611][ T199] vprintk_emit+0x37c/0x3e0 [ 9.933614][ T199] ? wake_up_klogd_work_func+0x90/0x90 [ 9.933615][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 9.933618][ T199] ? __lock_acquire+0x518/0xc20 [ 9.933622][ T199] _printk+0xc7/0x100 [ 9.933626][ T199] ? snapshot_read.cold+0x21/0x21 [ 9.933628][ T199] ? do_raw_spin_lock+0x131/0x280 [ 9.933631][ T199] ? __rwlock_init+0x150/0x150 [ 9.933635][ T199] ? do_raw_spin_lock+0x131/0x280 [ 9.933638][ T199] do_exit.cold+0x82/0x9c [ 9.933641][ T199] ? exit_notify+0x890/0x890 [ 9.933643][ T199] ? __lock_release.isra.0+0x69/0x1a0 [ 9.933645][ T199] ? rcu_is_watching+0x16/0xd0 [ 9.933649][ T199] do_group_exit+0xb8/0x370 [ 9.933652][ T199] __x64_sys_exit_group+0x3c/0x50 [ 9.933654][ T199] x64_sys_call+0x1567/0x1570 [ 9.933656][ T199] do_syscall_64+0xff/0x530 [ 9.933660][ T199] ? irq_exit_rcu+0x1a/0x30 [ 9.933663][ T199] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.933665][ T199] RIP: 0033:0x479678 [ 9.933667][ T199] Code: Unable to access opcode bytes at 0x47964e. [ 9.933668][ T199] RSP: 002b:00007ffef5f6e808 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.933671][ T199] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 9.933672][ T199] RDX: 000000003ff5e708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 9.933673][ T199] RBP: 00007ffef5f6e860 R08: 0000000000000000 R09: 000000003ff5f3e0 [ 9.933674][ T199] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffef5f6e998 [ 9.933675][ T199] R13: 00007ffef5f6ea20 R14: 0000000000000000 R15: 000000000054d560 [ 9.933681][ T199]