[ 11.095737][ T199] packetdrill (199) used greatest stack depth: 24520 bytes left [ 11.095753][ T199] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.095755][ T199] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 199, name: packetdrill [ 11.095756][ T199] preempt_count: 2, expected: 0 [ 11.095757][ T199] RCU nest depth: 0, expected: 0 [ 11.095758][ T199] locks held by packetdrill/199: 5, last CPU#2: [ 11.095760][ T199] #0: ffffffffb2c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.095773][ T199] #1: ffffffffb2d69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.095778][ T199] #2: ffffffffb2d69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.095781][ T199] #3: ffffffffb2c89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.095784][ T199] #4: ffffffffb2c89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.095788][ T199] irq event stamp: 3868538 [ 11.095789][ T199] hardirqs last enabled at (3868537): [] __down_trylock_console_sem+0x86/0xa0 [ 11.095792][ T199] hardirqs last disabled at (3868538): [] console_emit_next_record+0x3d4/0x4c0 [ 11.095794][ T199] softirqs last enabled at (3868294): [] tcp_close+0x2b/0xb0 [ 11.095798][ T199] softirqs last disabled at (3868292): [] release_sock+0x21/0x240 [ 11.095801][ T199] Preemption disabled at: [ 11.095802][ T199] [<0000000000000000>] 0x0 [ 11.095809][ T199] CPU: 2 UID: 0 PID: 199 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.095812][ T199] Tainted: [W]=WARN [ 11.095813][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.095815][ T199] Call Trace: [ 11.095816][ T199] [ 11.095818][ T199] dump_stack_lvl+0x6f/0xa0 [ 11.095823][ T199] __might_resched.cold+0x1fe/0x2c1 [ 11.095827][ T199] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.095831][ T199] ? __kmalloc_noprof+0xdb/0x760 [ 11.095836][ T199] __kmalloc_noprof+0x443/0x760 [ 11.095838][ T199] ? alloc_buf.isra.0+0x4b/0x260 [ 11.095844][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 11.095847][ T199] alloc_buf.isra.0+0x4b/0x260 [ 11.095850][ T199] put_chars+0x1e1/0x2f0 [ 11.095853][ T199] ? __send_to_port+0x420/0x420 [ 11.095855][ T199] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.095859][ T199] ? validate_chain+0x38b/0xc20 [ 11.095864][ T199] hvc_console_print+0x292/0x780 [ 11.095871][ T199] ? hvc_write+0x3a0/0x3a0 [ 11.095873][ T199] ? rcu_is_watching+0x16/0xd0 [ 11.095875][ T199] ? lock_acquire+0x13c/0x160 [ 11.095879][ T199] console_emit_next_record+0x22f/0x4c0 [ 11.095882][ T199] ? devkmsg_read+0x4b0/0x4b0 [ 11.095883][ T199] ? console_flush_one_record+0x106/0x710 [ 11.095886][ T199] ? rcu_is_watching+0x16/0xd0 [ 11.095888][ T199] ? lock_acquire+0x13c/0x160 [ 11.095892][ T199] console_flush_one_record+0x46f/0x710 [ 11.095895][ T199] ? console_emit_next_record+0x4c0/0x4c0 [ 11.095896][ T199] ? __lock_acquire+0x518/0xc20 [ 11.095901][ T199] console_unlock+0xee/0x1f0 [ 11.095904][ T199] ? console_flush_one_record+0x710/0x710 [ 11.095905][ T199] ? rcu_is_watching+0x16/0xd0 [ 11.095907][ T199] ? lock_acquire+0x60/0x160 [ 11.095910][ T199] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.095912][ T199] ? vprintk_emit+0x320/0x3e0 [ 11.095915][ T199] vprintk_emit+0x37c/0x3e0 [ 11.095918][ T199] ? wake_up_klogd_work_func+0x90/0x90 [ 11.095919][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 11.095922][ T199] ? __lock_acquire+0x518/0xc20 [ 11.095926][ T199] _printk+0xc7/0x100 [ 11.095930][ T199] ? snapshot_read.cold+0x21/0x21 [ 11.095933][ T199] ? do_raw_spin_lock+0x131/0x280 [ 11.095935][ T199] ? __rwlock_init+0x150/0x150 [ 11.095939][ T199] ? do_raw_spin_lock+0x131/0x280 [ 11.095942][ T199] do_exit.cold+0x82/0x9c [ 11.095945][ T199] ? exit_notify+0x890/0x890 [ 11.095947][ T199] ? __lock_release.isra.0+0x69/0x1a0 [ 11.095950][ T199] ? rcu_is_watching+0x16/0xd0 [ 11.095953][ T199] do_group_exit+0xb8/0x370 [ 11.095956][ T199] __x64_sys_exit_group+0x3c/0x50 [ 11.095958][ T199] x64_sys_call+0x1567/0x1570 [ 11.095961][ T199] do_syscall_64+0xff/0x530 [ 11.095964][ T199] ? irq_exit_rcu+0x1a/0x30 [ 11.095967][ T199] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.095969][ T199] RIP: 0033:0x479678 [ 11.095971][ T199] Code: Unable to access opcode bytes at 0x47964e. [ 11.095972][ T199] RSP: 002b:00007fffac882be8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.095975][ T199] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.095976][ T199] RDX: 000000003ac10708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.095977][ T199] RBP: 00007fffac882c40 R08: 0000000000000000 R09: 000000003ac113e0 [ 11.095978][ T199] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fffac882d78 [ 11.095979][ T199] R13: 00007fffac882e00 R14: 0000000000000000 R15: 000000000054d560 [ 11.095985][ T199]