[ 11.179915][ T204] packetdrill (204) used greatest stack depth: 24056 bytes left [ 11.179931][ T204] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.179933][ T204] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 204, name: packetdrill [ 11.179935][ T204] preempt_count: 2, expected: 0 [ 11.179936][ T204] RCU nest depth: 0, expected: 0 [ 11.179937][ T204] locks held by packetdrill/204: 5, last CPU#3: [ 11.179939][ T204] #0: ffffffff93c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.179951][ T204] #1: ffffffff93d69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.179956][ T204] #2: ffffffff93d69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.179959][ T204] #3: ffffffff93c89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.179962][ T204] #4: ffffffff93c89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.179966][ T204] irq event stamp: 4057658 [ 11.179967][ T204] hardirqs last enabled at (4057657): [] __down_trylock_console_sem+0x86/0xa0 [ 11.179970][ T204] hardirqs last disabled at (4057658): [] console_emit_next_record+0x3d4/0x4c0 [ 11.179972][ T204] softirqs last enabled at (4057414): [] tcp_close+0x2b/0xb0 [ 11.179976][ T204] softirqs last disabled at (4057412): [] release_sock+0x21/0x240 [ 11.179980][ T204] Preemption disabled at: [ 11.179981][ T204] [<0000000000000000>] 0x0 [ 11.179989][ T204] CPU: 3 UID: 0 PID: 204 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.179992][ T204] Tainted: [W]=WARN [ 11.179993][ T204] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.179995][ T204] Call Trace: [ 11.179997][ T204] [ 11.179998][ T204] dump_stack_lvl+0x6f/0xa0 [ 11.180004][ T204] __might_resched.cold+0x1fe/0x2c1 [ 11.180008][ T204] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.180012][ T204] ? __kmalloc_noprof+0xdb/0x760 [ 11.180017][ T204] __kmalloc_noprof+0x443/0x760 [ 11.180020][ T204] ? alloc_buf.isra.0+0x4b/0x260 [ 11.180025][ T204] ? do_raw_spin_unlock+0x59/0x250 [ 11.180028][ T204] alloc_buf.isra.0+0x4b/0x260 [ 11.180032][ T204] put_chars+0x1e1/0x2f0 [ 11.180035][ T204] ? __send_to_port+0x420/0x420 [ 11.180037][ T204] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.180041][ T204] ? validate_chain+0x38b/0xc20 [ 11.180046][ T204] hvc_console_print+0x292/0x780 [ 11.180053][ T204] ? hvc_write+0x3a0/0x3a0 [ 11.180055][ T204] ? rcu_is_watching+0x16/0xd0 [ 11.180057][ T204] ? lock_acquire+0x13c/0x160 [ 11.180061][ T204] console_emit_next_record+0x22f/0x4c0 [ 11.180065][ T204] ? devkmsg_read+0x4b0/0x4b0 [ 11.180066][ T204] ? console_flush_one_record+0x106/0x710 [ 11.180069][ T204] ? rcu_is_watching+0x16/0xd0 [ 11.180071][ T204] ? lock_acquire+0x13c/0x160 [ 11.180075][ T204] console_flush_one_record+0x46f/0x710 [ 11.180078][ T204] ? console_emit_next_record+0x4c0/0x4c0 [ 11.180080][ T204] ? __lock_acquire+0x518/0xc20 [ 11.180085][ T204] console_unlock+0xee/0x1f0 [ 11.180087][ T204] ? console_flush_one_record+0x710/0x710 [ 11.180089][ T204] ? rcu_is_watching+0x16/0xd0 [ 11.180091][ T204] ? lock_acquire+0x60/0x160 [ 11.180094][ T204] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.180096][ T204] ? vprintk_emit+0x320/0x3e0 [ 11.180099][ T204] vprintk_emit+0x37c/0x3e0 [ 11.180102][ T204] ? wake_up_klogd_work_func+0x90/0x90 [ 11.180104][ T204] ? do_raw_spin_unlock+0x59/0x250 [ 11.180107][ T204] ? __lock_acquire+0x518/0xc20 [ 11.180111][ T204] _printk+0xc7/0x100 [ 11.180115][ T204] ? snapshot_read.cold+0x21/0x21 [ 11.180117][ T204] ? do_raw_spin_lock+0x131/0x280 [ 11.180120][ T204] ? __rwlock_init+0x150/0x150 [ 11.180124][ T204] ? do_raw_spin_lock+0x131/0x280 [ 11.180127][ T204] do_exit.cold+0x82/0x9c [ 11.180130][ T204] ? exit_notify+0x890/0x890 [ 11.180132][ T204] ? __lock_release.isra.0+0x69/0x1a0 [ 11.180135][ T204] ? rcu_is_watching+0x16/0xd0 [ 11.180138][ T204] do_group_exit+0xb8/0x370 [ 11.180141][ T204] __x64_sys_exit_group+0x3c/0x50 [ 11.180143][ T204] x64_sys_call+0x1567/0x1570 [ 11.180146][ T204] do_syscall_64+0xff/0x530 [ 11.180150][ T204] ? irq_exit_rcu+0x1a/0x30 [ 11.180153][ T204] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.180155][ T204] RIP: 0033:0x479678 [ 11.180164][ T204] Code: Unable to access opcode bytes at 0x47964e. [ 11.180164][ T204] RSP: 002b:00007ffc86497488 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.180167][ T204] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.180168][ T204] RDX: 000000002178e708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.180169][ T204] RBP: 00007ffc864974e0 R08: 0000000000000000 R09: 000000002178f3e0 [ 11.180170][ T204] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffc86497618 [ 11.180171][ T204] R13: 00007ffc864976a0 R14: 0000000000000000 R15: 000000000054d560 [ 11.180177][ T204]