[ 17.138307][ T199] packetdrill (199) used greatest stack depth: 23440 bytes left [ 17.138324][ T199] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 17.138326][ T199] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 199, name: packetdrill [ 17.138327][ T199] preempt_count: 2, expected: 0 [ 17.138328][ T199] RCU nest depth: 0, expected: 0 [ 17.138329][ T199] locks held by packetdrill/199: 5, last CPU#1: [ 17.138331][ T199] #0: ffffffff92a027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 17.138344][ T199] #1: ffffffff92b69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 17.138348][ T199] #2: ffffffff92b69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 17.138352][ T199] #3: ffffffff92a89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 17.138355][ T199] #4: ffffffff92a89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 17.138358][ T199] irq event stamp: 4332108 [ 17.138359][ T199] hardirqs last enabled at (4332107): [] __down_trylock_console_sem+0x86/0xa0 [ 17.138362][ T199] hardirqs last disabled at (4332108): [] console_emit_next_record+0x3d4/0x4c0 [ 17.138364][ T199] softirqs last enabled at (4332034): [] handle_softirqs+0x67c/0x900 [ 17.138366][ T199] softirqs last disabled at (4332029): [] __irq_exit_rcu+0x145/0x1c0 [ 17.138368][ T199] Preemption disabled at: [ 17.138369][ T199] [<0000000000000000>] 0x0 [ 17.138376][ T199] CPU: 1 UID: 0 PID: 199 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 17.138379][ T199] Tainted: [W]=WARN [ 17.138380][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.138381][ T199] Call Trace: [ 17.138383][ T199] [ 17.138384][ T199] dump_stack_lvl+0x6f/0xa0 [ 17.138390][ T199] __might_resched.cold+0x1fe/0x2c1 [ 17.138394][ T199] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 17.138397][ T199] ? __kmalloc_noprof+0xdb/0x760 [ 17.138402][ T199] __kmalloc_noprof+0x443/0x760 [ 17.138405][ T199] ? alloc_buf.isra.0+0x4b/0x260 [ 17.138411][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 17.138414][ T199] alloc_buf.isra.0+0x4b/0x260 [ 17.138417][ T199] put_chars+0x1e1/0x2f0 [ 17.138420][ T199] ? __send_to_port+0x420/0x420 [ 17.138422][ T199] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 17.138426][ T199] ? validate_chain+0x38b/0xc20 [ 17.138431][ T199] hvc_console_print+0x292/0x780 [ 17.138438][ T199] ? hvc_write+0x3a0/0x3a0 [ 17.138440][ T199] ? rcu_is_watching+0x16/0xd0 [ 17.138442][ T199] ? lock_acquire+0x13c/0x160 [ 17.138446][ T199] console_emit_next_record+0x22f/0x4c0 [ 17.138449][ T199] ? devkmsg_read+0x4b0/0x4b0 [ 17.138450][ T199] ? console_flush_one_record+0x106/0x710 [ 17.138453][ T199] ? rcu_is_watching+0x16/0xd0 [ 17.138455][ T199] ? lock_acquire+0x13c/0x160 [ 17.138459][ T199] console_flush_one_record+0x46f/0x710 [ 17.138462][ T199] ? console_emit_next_record+0x4c0/0x4c0 [ 17.138464][ T199] ? __lock_acquire+0x518/0xc20 [ 17.138469][ T199] console_unlock+0xee/0x1f0 [ 17.138471][ T199] ? console_flush_one_record+0x710/0x710 [ 17.138473][ T199] ? rcu_is_watching+0x16/0xd0 [ 17.138474][ T199] ? lock_acquire+0x60/0x160 [ 17.138478][ T199] ? __down_trylock_console_sem+0x5e/0xa0 [ 17.138480][ T199] ? vprintk_emit+0x320/0x3e0 [ 17.138483][ T199] vprintk_emit+0x37c/0x3e0 [ 17.138486][ T199] ? wake_up_klogd_work_func+0x90/0x90 [ 17.138489][ T199] ? __lock_acquire+0x518/0xc20 [ 17.138492][ T199] _printk+0xc7/0x100 [ 17.138496][ T199] ? snapshot_read.cold+0x21/0x21 [ 17.138499][ T199] ? do_raw_spin_lock+0x131/0x280 [ 17.138502][ T199] ? __rwlock_init+0x150/0x150 [ 17.138505][ T199] ? do_raw_spin_lock+0x131/0x280 [ 17.138508][ T199] do_exit.cold+0x82/0x9c [ 17.138512][ T199] ? exit_notify+0x890/0x890 [ 17.138513][ T199] ? __lock_release.isra.0+0x69/0x1a0 [ 17.138516][ T199] ? rcu_is_watching+0x16/0xd0 [ 17.138520][ T199] do_group_exit+0xb8/0x370 [ 17.138522][ T199] __x64_sys_exit_group+0x3c/0x50 [ 17.138524][ T199] x64_sys_call+0x1567/0x1570 [ 17.138527][ T199] do_syscall_64+0xff/0x530 [ 17.138531][ T199] ? irq_exit_rcu+0x1a/0x30 [ 17.138534][ T199] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.138536][ T199] RIP: 0033:0x479678 [ 17.138538][ T199] Code: Unable to access opcode bytes at 0x47964e. [ 17.138539][ T199] RSP: 002b:00007fff44cf2898 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 17.138541][ T199] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 17.138542][ T199] RDX: 000000002c970708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 17.138543][ T199] RBP: 00007fff44cf28f0 R08: 0000000000000000 R09: 000000002c9713e0 [ 17.138544][ T199] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fff44cf2a28 [ 17.138545][ T199] R13: 00007fff44cf2ab0 R14: 0000000000000000 R15: 000000000054d560 [ 17.138552][ T199]