[ 10.860874][ T199] packetdrill (199) used greatest stack depth: 24520 bytes left [ 10.860892][ T199] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.860893][ T199] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 199, name: packetdrill [ 10.860895][ T199] preempt_count: 2, expected: 0 [ 10.860896][ T199] RCU nest depth: 0, expected: 0 [ 10.860897][ T199] locks held by packetdrill/199: 5, last CPU#3: [ 10.860899][ T199] #0: ffffffffa10027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.860911][ T199] #1: ffffffffa1169cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.860916][ T199] #2: ffffffffa1169d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.860919][ T199] #3: ffffffffa1089660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.860922][ T199] #4: ffffffffa1089560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.860926][ T199] irq event stamp: 4294320 [ 10.860927][ T199] hardirqs last enabled at (4294319): [] __down_trylock_console_sem+0x86/0xa0 [ 10.860930][ T199] hardirqs last disabled at (4294320): [] console_emit_next_record+0x3d4/0x4c0 [ 10.860931][ T199] softirqs last enabled at (4294076): [] tcp_close+0x2b/0xb0 [ 10.860936][ T199] softirqs last disabled at (4294074): [] release_sock+0x21/0x240 [ 10.860939][ T199] Preemption disabled at: [ 10.860940][ T199] [<0000000000000000>] 0x0 [ 10.860947][ T199] CPU: 3 UID: 0 PID: 199 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.860950][ T199] Tainted: [W]=WARN [ 10.860951][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.860953][ T199] Call Trace: [ 10.860955][ T199] [ 10.860956][ T199] dump_stack_lvl+0x6f/0xa0 [ 10.860962][ T199] __might_resched.cold+0x1fe/0x2c1 [ 10.860966][ T199] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.860969][ T199] ? __kmalloc_noprof+0xdb/0x760 [ 10.860975][ T199] __kmalloc_noprof+0x443/0x760 [ 10.860977][ T199] ? alloc_buf.isra.0+0x4b/0x260 [ 10.860983][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 10.860986][ T199] alloc_buf.isra.0+0x4b/0x260 [ 10.860989][ T199] put_chars+0x1e1/0x2f0 [ 10.860992][ T199] ? __send_to_port+0x420/0x420 [ 10.860994][ T199] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.860998][ T199] ? validate_chain+0x38b/0xc20 [ 10.861003][ T199] hvc_console_print+0x292/0x780 [ 10.861010][ T199] ? hvc_write+0x3a0/0x3a0 [ 10.861012][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.861015][ T199] ? lock_acquire+0x13c/0x160 [ 10.861019][ T199] console_emit_next_record+0x22f/0x4c0 [ 10.861022][ T199] ? devkmsg_read+0x4b0/0x4b0 [ 10.861024][ T199] ? console_flush_one_record+0x106/0x710 [ 10.861026][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.861028][ T199] ? lock_acquire+0x13c/0x160 [ 10.861032][ T199] console_flush_one_record+0x46f/0x710 [ 10.861036][ T199] ? console_emit_next_record+0x4c0/0x4c0 [ 10.861037][ T199] ? __lock_acquire+0x518/0xc20 [ 10.861042][ T199] console_unlock+0xee/0x1f0 [ 10.861044][ T199] ? console_flush_one_record+0x710/0x710 [ 10.861046][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.861048][ T199] ? lock_acquire+0x60/0x160 [ 10.861051][ T199] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.861053][ T199] ? vprintk_emit+0x320/0x3e0 [ 10.861056][ T199] vprintk_emit+0x37c/0x3e0 [ 10.861059][ T199] ? wake_up_klogd_work_func+0x90/0x90 [ 10.861061][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 10.861064][ T199] ? __lock_acquire+0x518/0xc20 [ 10.861068][ T199] _printk+0xc7/0x100 [ 10.861071][ T199] ? snapshot_read.cold+0x21/0x21 [ 10.861074][ T199] ? do_raw_spin_lock+0x131/0x280 [ 10.861077][ T199] ? __rwlock_init+0x150/0x150 [ 10.861081][ T199] ? do_raw_spin_lock+0x131/0x280 [ 10.861084][ T199] do_exit.cold+0x82/0x9c [ 10.861087][ T199] ? exit_notify+0x890/0x890 [ 10.861089][ T199] ? __lock_release.isra.0+0x69/0x1a0 [ 10.861092][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.861095][ T199] do_group_exit+0xb8/0x370 [ 10.861098][ T199] __x64_sys_exit_group+0x3c/0x50 [ 10.861100][ T199] x64_sys_call+0x1567/0x1570 [ 10.861103][ T199] do_syscall_64+0xff/0x530 [ 10.861107][ T199] ? irq_exit_rcu+0x1a/0x30 [ 10.861110][ T199] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.861112][ T199] RIP: 0033:0x479678 [ 10.861114][ T199] Code: Unable to access opcode bytes at 0x47964e. [ 10.861115][ T199] RSP: 002b:00007fffabea0ae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.861118][ T199] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.861119][ T199] RDX: 000000002455c708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.861120][ T199] RBP: 00007fffabea0b40 R08: 0000000000000000 R09: 000000002455d3e0 [ 10.861121][ T199] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fffabea0c78 [ 10.861122][ T199] R13: 00007fffabea0d00 R14: 0000000000000000 R15: 000000000054d560 [ 10.861128][ T199]