[ 14.635600][ T170] packetdrill (170) used greatest stack depth: 23896 bytes left [ 14.635681][ T170] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.635684][ T170] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 170, name: packetdrill [ 14.635687][ T170] preempt_count: 2, expected: 0 [ 14.635689][ T170] RCU nest depth: 0, expected: 0 [ 14.635690][ T170] locks held by packetdrill/170: 5, last CPU#2: [ 14.635693][ T170] #0: ffffffff8b6027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.635709][ T170] #1: ffffffff8b769cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.635717][ T170] #2: ffffffff8b769d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.635723][ T170] #3: ffffffff8b689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.635729][ T170] #4: ffffffff8b689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 14.635734][ T170] irq event stamp: 2101260 [ 14.635735][ T170] hardirqs last enabled at (2101259): [] __down_trylock_console_sem+0x86/0xa0 [ 14.635740][ T170] hardirqs last disabled at (2101260): [] console_emit_next_record+0x3d4/0x4c0 [ 14.635743][ T170] softirqs last enabled at (2101012): [] tcp_close+0x2b/0xb0 [ 14.635748][ T170] softirqs last disabled at (2101010): [] release_sock+0x21/0x240 [ 14.635753][ T170] Preemption disabled at: [ 14.635754][ T170] [<0000000000000000>] 0x0 [ 14.635763][ T170] CPU: 2 UID: 0 PID: 170 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.635768][ T170] Tainted: [W]=WARN [ 14.635770][ T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.635773][ T170] Call Trace: [ 14.635775][ T170] [ 14.635777][ T170] dump_stack_lvl+0x6f/0xa0 [ 14.635785][ T170] __might_resched.cold+0x1fe/0x2c1 [ 14.635791][ T170] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.635796][ T170] ? __kmalloc_noprof+0xdb/0x760 [ 14.635804][ T170] __kmalloc_noprof+0x443/0x760 [ 14.635809][ T170] ? alloc_buf.isra.0+0x4b/0x260 [ 14.635818][ T170] ? do_raw_spin_unlock+0x59/0x250 [ 14.635822][ T170] alloc_buf.isra.0+0x4b/0x260 [ 14.635828][ T170] put_chars+0x1e1/0x2f0 [ 14.635833][ T170] ? __send_to_port+0x420/0x420 [ 14.635835][ T170] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 14.635841][ T170] ? validate_chain+0x38b/0xc20 [ 14.635851][ T170] hvc_console_print+0x292/0x780 [ 14.635863][ T170] ? hvc_write+0x3a0/0x3a0 [ 14.635867][ T170] ? rcu_is_watching+0x16/0xd0 [ 14.635871][ T170] ? lock_acquire+0x13c/0x160 [ 14.635878][ T170] console_emit_next_record+0x22f/0x4c0 [ 14.635884][ T170] ? devkmsg_read+0x4b0/0x4b0 [ 14.635886][ T170] ? console_flush_one_record+0x106/0x710 [ 14.635891][ T170] ? rcu_is_watching+0x16/0xd0 [ 14.635894][ T170] ? lock_acquire+0x13c/0x160 [ 14.635902][ T170] console_flush_one_record+0x46f/0x710 [ 14.635908][ T170] ? console_emit_next_record+0x4c0/0x4c0 [ 14.635911][ T170] ? __lock_acquire+0x518/0xc20 [ 14.635921][ T170] console_unlock+0xee/0x1f0 [ 14.635925][ T170] ? console_flush_one_record+0x710/0x710 [ 14.635928][ T170] ? rcu_is_watching+0x16/0xd0 [ 14.635931][ T170] ? lock_acquire+0x60/0x160 [ 14.635938][ T170] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.635941][ T170] ? vprintk_emit+0x320/0x3e0 [ 14.635946][ T170] vprintk_emit+0x37c/0x3e0 [ 14.635952][ T170] ? wake_up_klogd_work_func+0x90/0x90 [ 14.635954][ T170] ? do_raw_spin_unlock+0x59/0x250 [ 14.635960][ T170] ? __lock_acquire+0x518/0xc20 [ 14.635967][ T170] _printk+0xc7/0x100 [ 14.635972][ T170] ? snapshot_read.cold+0x21/0x21 [ 14.635977][ T170] ? do_raw_spin_lock+0x131/0x280 [ 14.635981][ T170] ? __rwlock_init+0x150/0x150 [ 14.635989][ T170] ? do_raw_spin_lock+0x131/0x280 [ 14.635993][ T170] do_exit.cold+0x82/0x9c [ 14.635999][ T170] ? exit_notify+0x890/0x890 [ 14.636001][ T170] ? __lock_release.isra.0+0x69/0x1a0 [ 14.636006][ T170] ? rcu_is_watching+0x16/0xd0 [ 14.636013][ T170] do_group_exit+0xb8/0x370 [ 14.636018][ T170] __x64_sys_exit_group+0x3c/0x50 [ 14.636022][ T170] x64_sys_call+0x1567/0x1570 [ 14.636025][ T170] do_syscall_64+0xff/0x530 [ 14.636030][ T170] ? irq_exit_rcu+0x1a/0x30 [ 14.636035][ T170] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.636038][ T170] RIP: 0033:0x479678 [ 14.636042][ T170] Code: Unable to access opcode bytes at 0x47964e. [ 14.636043][ T170] RSP: 002b:00007ffe80f73558 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 14.636047][ T170] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 14.636049][ T170] RDX: 000000000eb95708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 14.636050][ T170] RBP: 00007ffe80f735b0 R08: 0000000000000000 R09: 000000000eb963e0 [ 14.636052][ T170] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffe80f736e8 [ 14.636054][ T170] R13: 00007ffe80f73770 R14: 0000000000000000 R15: 000000000054d560 [ 14.636076][ T170]