[ 12.037400][ T198] packetdrill (198) used greatest stack depth: 22968 bytes left [ 12.037420][ T198] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.037423][ T198] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 198, name: packetdrill [ 12.037425][ T198] preempt_count: 2, expected: 0 [ 12.037427][ T198] RCU nest depth: 0, expected: 0 [ 12.037428][ T198] locks held by packetdrill/198: 5, last CPU#2: [ 12.037431][ T198] #0: ffffffff896027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.037446][ T198] #1: ffffffff89769cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.037453][ T198] #2: ffffffff89769d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.037459][ T198] #3: ffffffff89689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.037464][ T198] #4: ffffffff89689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 12.037470][ T198] irq event stamp: 2452564 [ 12.037471][ T198] hardirqs last enabled at (2452563): [] __down_trylock_console_sem+0x86/0xa0 [ 12.037475][ T198] hardirqs last disabled at (2452564): [] console_emit_next_record+0x3d4/0x4c0 [ 12.037478][ T198] softirqs last enabled at (2452530): [] handle_softirqs+0x67c/0x900 [ 12.037481][ T198] softirqs last disabled at (2452521): [] __irq_exit_rcu+0x145/0x1c0 [ 12.037484][ T198] Preemption disabled at: [ 12.037485][ T198] [<0000000000000000>] 0x0 [ 12.037494][ T198] CPU: 2 UID: 0 PID: 198 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.037498][ T198] Tainted: [W]=WARN [ 12.037499][ T198] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.037502][ T198] Call Trace: [ 12.037504][ T198] [ 12.037506][ T198] dump_stack_lvl+0x6f/0xa0 [ 12.037513][ T198] __might_resched.cold+0x1fe/0x2c1 [ 12.037519][ T198] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.037524][ T198] ? __kmalloc_noprof+0xdb/0x760 [ 12.037531][ T198] __kmalloc_noprof+0x443/0x760 [ 12.037535][ T198] ? alloc_buf.isra.0+0x4b/0x260 [ 12.037544][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 12.037548][ T198] alloc_buf.isra.0+0x4b/0x260 [ 12.037553][ T198] put_chars+0x1e1/0x2f0 [ 12.037558][ T198] ? __send_to_port+0x420/0x420 [ 12.037560][ T198] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 12.037566][ T198] ? validate_chain+0x38b/0xc20 [ 12.037575][ T198] hvc_console_print+0x292/0x780 [ 12.037586][ T198] ? hvc_write+0x3a0/0x3a0 [ 12.037590][ T198] ? rcu_is_watching+0x16/0xd0 [ 12.037593][ T198] ? lock_acquire+0x13c/0x160 [ 12.037600][ T198] console_emit_next_record+0x22f/0x4c0 [ 12.037606][ T198] ? devkmsg_read+0x4b0/0x4b0 [ 12.037608][ T198] ? console_flush_one_record+0x106/0x710 [ 12.037613][ T198] ? rcu_is_watching+0x16/0xd0 [ 12.037616][ T198] ? lock_acquire+0x13c/0x160 [ 12.037623][ T198] console_flush_one_record+0x46f/0x710 [ 12.037629][ T198] ? console_emit_next_record+0x4c0/0x4c0 [ 12.037631][ T198] ? __lock_acquire+0x518/0xc20 [ 12.037640][ T198] console_unlock+0xee/0x1f0 [ 12.037644][ T198] ? console_flush_one_record+0x710/0x710 [ 12.037646][ T198] ? rcu_is_watching+0x16/0xd0 [ 12.037649][ T198] ? lock_acquire+0x60/0x160 [ 12.037656][ T198] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.037659][ T198] ? vprintk_emit+0x320/0x3e0 [ 12.037664][ T198] vprintk_emit+0x37c/0x3e0 [ 12.037670][ T198] ? wake_up_klogd_work_func+0x90/0x90 [ 12.037672][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 12.037677][ T198] ? __lock_acquire+0x518/0xc20 [ 12.037684][ T198] _printk+0xc7/0x100 [ 12.037689][ T198] ? snapshot_read.cold+0x21/0x21 [ 12.037694][ T198] ? do_raw_spin_lock+0x131/0x280 [ 12.037698][ T198] ? __rwlock_init+0x150/0x150 [ 12.037704][ T198] ? do_raw_spin_lock+0x131/0x280 [ 12.037709][ T198] do_exit.cold+0x82/0x9c [ 12.037714][ T198] ? exit_notify+0x890/0x890 [ 12.037717][ T198] ? __lock_release.isra.0+0x69/0x1a0 [ 12.037721][ T198] ? rcu_is_watching+0x16/0xd0 [ 12.037728][ T198] do_group_exit+0xb8/0x370 [ 12.037733][ T198] __x64_sys_exit_group+0x3c/0x50 [ 12.037736][ T198] x64_sys_call+0x1567/0x1570 [ 12.037739][ T198] do_syscall_64+0xff/0x530 [ 12.037744][ T198] ? irq_exit_rcu+0x1a/0x30 [ 12.037748][ T198] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.037752][ T198] RIP: 0033:0x479678 [ 12.037755][ T198] Code: Unable to access opcode bytes at 0x47964e. [ 12.037756][ T198] RSP: 002b:00007ffc94cbaf58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.037759][ T198] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 12.037761][ T198] RDX: 00000000234d2708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 12.037763][ T198] RBP: 00007ffc94cbafb0 R08: 0000000000000000 R09: 00000000234d33e0 [ 12.037764][ T198] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffc94cbb0e8 [ 12.037766][ T198] R13: 00007ffc94cbb170 R14: 0000000000000000 R15: 000000000054d560 [ 12.037779][ T198]