[ 17.774608][ T200] packetdrill (200) used greatest stack depth: 23960 bytes left [ 17.774625][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 17.774627][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: packetdrill [ 17.774629][ T200] preempt_count: 2, expected: 0 [ 17.774629][ T200] RCU nest depth: 0, expected: 0 [ 17.774630][ T200] locks held by packetdrill/200: 5, last CPU#2: [ 17.774632][ T200] #0: ffffffff89e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 17.774644][ T200] #1: ffffffff89f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 17.774649][ T200] #2: ffffffff89f69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 17.774652][ T200] #3: ffffffff89e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 17.774655][ T200] #4: ffffffff89e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 17.774659][ T200] irq event stamp: 3661028 [ 17.774660][ T200] hardirqs last enabled at (3661027): [] __down_trylock_console_sem+0x86/0xa0 [ 17.774663][ T200] hardirqs last disabled at (3661028): [] console_emit_next_record+0x3d4/0x4c0 [ 17.774665][ T200] softirqs last enabled at (3660800): [] tcp_close+0x2b/0xb0 [ 17.774669][ T200] softirqs last disabled at (3660798): [] release_sock+0x21/0x240 [ 17.774673][ T200] Preemption disabled at: [ 17.774673][ T200] [<0000000000000000>] 0x0 [ 17.774680][ T200] CPU: 2 UID: 0 PID: 200 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 17.774684][ T200] Tainted: [W]=WARN [ 17.774684][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.774686][ T200] Call Trace: [ 17.774687][ T200] [ 17.774689][ T200] dump_stack_lvl+0x6f/0xa0 [ 17.774694][ T200] __might_resched.cold+0x1fe/0x2c1 [ 17.774699][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 17.774702][ T200] ? __kmalloc_noprof+0xdb/0x760 [ 17.774707][ T200] __kmalloc_noprof+0x443/0x760 [ 17.774709][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 17.774715][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 17.774718][ T200] alloc_buf.isra.0+0x4b/0x260 [ 17.774721][ T200] put_chars+0x1e1/0x2f0 [ 17.774724][ T200] ? __send_to_port+0x420/0x420 [ 17.774726][ T200] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 17.774730][ T200] ? validate_chain+0x38b/0xc20 [ 17.774735][ T200] hvc_console_print+0x292/0x780 [ 17.774742][ T200] ? hvc_write+0x3a0/0x3a0 [ 17.774744][ T200] ? rcu_is_watching+0x16/0xd0 [ 17.774746][ T200] ? lock_acquire+0x13c/0x160 [ 17.774750][ T200] console_emit_next_record+0x22f/0x4c0 [ 17.774753][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 17.774755][ T200] ? console_flush_one_record+0x106/0x710 [ 17.774757][ T200] ? rcu_is_watching+0x16/0xd0 [ 17.774759][ T200] ? lock_acquire+0x13c/0x160 [ 17.774763][ T200] console_flush_one_record+0x46f/0x710 [ 17.774766][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 17.774767][ T200] ? __lock_acquire+0x518/0xc20 [ 17.774773][ T200] console_unlock+0xee/0x1f0 [ 17.774775][ T200] ? console_flush_one_record+0x710/0x710 [ 17.774776][ T200] ? rcu_is_watching+0x16/0xd0 [ 17.774778][ T200] ? lock_acquire+0x60/0x160 [ 17.774782][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 17.774784][ T200] ? vprintk_emit+0x320/0x3e0 [ 17.774786][ T200] vprintk_emit+0x37c/0x3e0 [ 17.774789][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 17.774792][ T200] ? __lock_acquire+0x518/0xc20 [ 17.774796][ T200] _printk+0xc7/0x100 [ 17.774800][ T200] ? snapshot_read.cold+0x21/0x21 [ 17.774802][ T200] ? do_raw_spin_lock+0x131/0x280 [ 17.774805][ T200] ? __rwlock_init+0x150/0x150 [ 17.774809][ T200] ? do_raw_spin_lock+0x131/0x280 [ 17.774812][ T200] do_exit.cold+0x82/0x9c [ 17.774815][ T200] ? exit_notify+0x890/0x890 [ 17.774816][ T200] ? __lock_release.isra.0+0x69/0x1a0 [ 17.774819][ T200] ? rcu_is_watching+0x16/0xd0 [ 17.774826][ T200] do_group_exit+0xb8/0x370 [ 17.774829][ T200] __x64_sys_exit_group+0x3c/0x50 [ 17.774831][ T200] x64_sys_call+0x1567/0x1570 [ 17.774833][ T200] do_syscall_64+0xff/0x530 [ 17.774837][ T200] ? irq_exit_rcu+0x1a/0x30 [ 17.774840][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.774842][ T200] RIP: 0033:0x479678 [ 17.774844][ T200] Code: Unable to access opcode bytes at 0x47964e. [ 17.774845][ T200] RSP: 002b:00007fff934c3da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 17.774848][ T200] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 17.774849][ T200] RDX: 000000001f72c708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 17.774850][ T200] RBP: 00007fff934c3e00 R08: 0000000000000000 R09: 000000001f72d3e0 [ 17.774851][ T200] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fff934c3f38 [ 17.774852][ T200] R13: 00007fff934c3fc0 R14: 0000000000000000 R15: 000000000054d560 [ 17.774858][ T200]