[ 10.790502][ T199] packetdrill (199) used greatest stack depth: 24120 bytes left [ 10.790518][ T199] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.790520][ T199] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 199, name: packetdrill [ 10.790522][ T199] preempt_count: 2, expected: 0 [ 10.790523][ T199] RCU nest depth: 0, expected: 0 [ 10.790524][ T199] locks held by packetdrill/199: 5, last CPU#2: [ 10.790526][ T199] #0: ffffffffaa6027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.790538][ T199] #1: ffffffffaa769cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.790543][ T199] #2: ffffffffaa769d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.790547][ T199] #3: ffffffffaa689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.790550][ T199] #4: ffffffffaa689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.790554][ T199] irq event stamp: 4075870 [ 10.790555][ T199] hardirqs last enabled at (4075869): [] __down_trylock_console_sem+0x86/0xa0 [ 10.790558][ T199] hardirqs last disabled at (4075870): [] console_emit_next_record+0x3d4/0x4c0 [ 10.790560][ T199] softirqs last enabled at (4075626): [] tcp_close+0x2b/0xb0 [ 10.790564][ T199] softirqs last disabled at (4075624): [] release_sock+0x21/0x240 [ 10.790567][ T199] Preemption disabled at: [ 10.790568][ T199] [<0000000000000000>] 0x0 [ 10.790576][ T199] CPU: 2 UID: 0 PID: 199 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.790579][ T199] Tainted: [W]=WARN [ 10.790580][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.790581][ T199] Call Trace: [ 10.790583][ T199] [ 10.790585][ T199] dump_stack_lvl+0x6f/0xa0 [ 10.790590][ T199] __might_resched.cold+0x1fe/0x2c1 [ 10.790595][ T199] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.790598][ T199] ? __kmalloc_noprof+0xdb/0x760 [ 10.790604][ T199] __kmalloc_noprof+0x443/0x760 [ 10.790606][ T199] ? alloc_buf.isra.0+0x4b/0x260 [ 10.790612][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 10.790615][ T199] alloc_buf.isra.0+0x4b/0x260 [ 10.790619][ T199] put_chars+0x1e1/0x2f0 [ 10.790623][ T199] ? __send_to_port+0x420/0x420 [ 10.790624][ T199] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.790628][ T199] ? validate_chain+0x38b/0xc20 [ 10.790634][ T199] hvc_console_print+0x292/0x780 [ 10.790641][ T199] ? hvc_write+0x3a0/0x3a0 [ 10.790643][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.790645][ T199] ? lock_acquire+0x13c/0x160 [ 10.790649][ T199] console_emit_next_record+0x22f/0x4c0 [ 10.790653][ T199] ? devkmsg_read+0x4b0/0x4b0 [ 10.790654][ T199] ? console_flush_one_record+0x106/0x710 [ 10.790657][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.790659][ T199] ? lock_acquire+0x13c/0x160 [ 10.790663][ T199] console_flush_one_record+0x46f/0x710 [ 10.790667][ T199] ? console_emit_next_record+0x4c0/0x4c0 [ 10.790668][ T199] ? __lock_acquire+0x518/0xc20 [ 10.790674][ T199] console_unlock+0xee/0x1f0 [ 10.790676][ T199] ? console_flush_one_record+0x710/0x710 [ 10.790678][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.790680][ T199] ? lock_acquire+0x60/0x160 [ 10.790684][ T199] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.790685][ T199] ? vprintk_emit+0x320/0x3e0 [ 10.790689][ T199] vprintk_emit+0x37c/0x3e0 [ 10.790692][ T199] ? wake_up_klogd_work_func+0x90/0x90 [ 10.790693][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 10.790697][ T199] ? __lock_acquire+0x518/0xc20 [ 10.790701][ T199] _printk+0xc7/0x100 [ 10.790705][ T199] ? snapshot_read.cold+0x21/0x21 [ 10.790708][ T199] ? do_raw_spin_lock+0x131/0x280 [ 10.790711][ T199] ? __rwlock_init+0x150/0x150 [ 10.790715][ T199] ? do_raw_spin_lock+0x131/0x280 [ 10.790718][ T199] do_exit.cold+0x82/0x9c [ 10.790722][ T199] ? exit_notify+0x890/0x890 [ 10.790723][ T199] ? __lock_release.isra.0+0x69/0x1a0 [ 10.790726][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.790730][ T199] do_group_exit+0xb8/0x370 [ 10.790733][ T199] __x64_sys_exit_group+0x3c/0x50 [ 10.790735][ T199] x64_sys_call+0x1567/0x1570 [ 10.790738][ T199] do_syscall_64+0xff/0x530 [ 10.790741][ T199] ? irq_exit_rcu+0x1a/0x30 [ 10.790744][ T199] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.790747][ T199] RIP: 0033:0x479678 [ 10.790749][ T199] Code: Unable to access opcode bytes at 0x47964e. [ 10.790751][ T199] RSP: 002b:00007ffd80f65c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.790753][ T199] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.790755][ T199] RDX: 0000000039cea708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.790756][ T199] RBP: 00007ffd80f65ce0 R08: 0000000000000000 R09: 0000000039ceb3e0 [ 10.790757][ T199] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffd80f65e18 [ 10.790758][ T199] R13: 00007ffd80f65ea0 R14: 0000000000000000 R15: 000000000054d560 [ 10.790765][ T199]