[ 16.626806][ T198] packetdrill (198) used greatest stack depth: 24224 bytes left [ 16.626826][ T198] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 16.626828][ T198] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 198, name: packetdrill [ 16.626829][ T198] preempt_count: 2, expected: 0 [ 16.626830][ T198] RCU nest depth: 0, expected: 0 [ 16.626831][ T198] locks held by packetdrill/198: 5, last CPU#3: [ 16.626833][ T198] #0: ffffffffa50027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 16.626846][ T198] #1: ffffffffa5169cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 16.626851][ T198] #2: ffffffffa5169d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 16.626854][ T198] #3: ffffffffa5089660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 16.626857][ T198] #4: ffffffffa5089560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 16.626861][ T198] irq event stamp: 4345346 [ 16.626862][ T198] hardirqs last enabled at (4345345): [] __down_trylock_console_sem+0x86/0xa0 [ 16.626865][ T198] hardirqs last disabled at (4345346): [] console_emit_next_record+0x3d4/0x4c0 [ 16.626867][ T198] softirqs last enabled at (4344236): [] handle_softirqs+0x67c/0x900 [ 16.626869][ T198] softirqs last disabled at (4343447): [] __irq_exit_rcu+0x145/0x1c0 [ 16.626871][ T198] Preemption disabled at: [ 16.626872][ T198] [<0000000000000000>] 0x0 [ 16.626879][ T198] CPU: 3 UID: 0 PID: 198 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 16.626882][ T198] Tainted: [W]=WARN [ 16.626883][ T198] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.626885][ T198] Call Trace: [ 16.626887][ T198] [ 16.626888][ T198] dump_stack_lvl+0x6f/0xa0 [ 16.626896][ T198] __might_resched.cold+0x1fe/0x2c1 [ 16.626900][ T198] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 16.626903][ T198] ? __kmalloc_noprof+0xdb/0x760 [ 16.626909][ T198] __kmalloc_noprof+0x443/0x760 [ 16.626912][ T198] ? alloc_buf.isra.0+0x4b/0x260 [ 16.626918][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 16.626921][ T198] alloc_buf.isra.0+0x4b/0x260 [ 16.626924][ T198] put_chars+0x1e1/0x2f0 [ 16.626927][ T198] ? __send_to_port+0x420/0x420 [ 16.626928][ T198] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 16.626933][ T198] ? validate_chain+0x38b/0xc20 [ 16.626938][ T198] hvc_console_print+0x292/0x780 [ 16.626944][ T198] ? hvc_write+0x3a0/0x3a0 [ 16.626947][ T198] ? rcu_is_watching+0x16/0xd0 [ 16.626948][ T198] ? lock_acquire+0x13c/0x160 [ 16.626953][ T198] console_emit_next_record+0x22f/0x4c0 [ 16.626956][ T198] ? devkmsg_read+0x4b0/0x4b0 [ 16.626957][ T198] ? console_flush_one_record+0x106/0x710 [ 16.626960][ T198] ? rcu_is_watching+0x16/0xd0 [ 16.626962][ T198] ? lock_acquire+0x13c/0x160 [ 16.626966][ T198] console_flush_one_record+0x46f/0x710 [ 16.626969][ T198] ? console_emit_next_record+0x4c0/0x4c0 [ 16.626970][ T198] ? __lock_acquire+0x518/0xc20 [ 16.626976][ T198] console_unlock+0xee/0x1f0 [ 16.626978][ T198] ? console_flush_one_record+0x710/0x710 [ 16.626979][ T198] ? rcu_is_watching+0x16/0xd0 [ 16.626981][ T198] ? lock_acquire+0x60/0x160 [ 16.626985][ T198] ? __down_trylock_console_sem+0x5e/0xa0 [ 16.626986][ T198] ? vprintk_emit+0x320/0x3e0 [ 16.626989][ T198] vprintk_emit+0x37c/0x3e0 [ 16.626992][ T198] ? wake_up_klogd_work_func+0x90/0x90 [ 16.626994][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 16.626997][ T198] ? __lock_acquire+0x518/0xc20 [ 16.627000][ T198] _printk+0xc7/0x100 [ 16.627004][ T198] ? snapshot_read.cold+0x21/0x21 [ 16.627007][ T198] ? do_raw_spin_lock+0x131/0x280 [ 16.627010][ T198] ? __rwlock_init+0x150/0x150 [ 16.627013][ T198] ? do_raw_spin_lock+0x131/0x280 [ 16.627016][ T198] do_exit.cold+0x82/0x9c [ 16.627020][ T198] ? exit_notify+0x890/0x890 [ 16.627021][ T198] ? __lock_release.isra.0+0x69/0x1a0 [ 16.627024][ T198] ? rcu_is_watching+0x16/0xd0 [ 16.627027][ T198] do_group_exit+0xb8/0x370 [ 16.627030][ T198] __x64_sys_exit_group+0x3c/0x50 [ 16.627032][ T198] x64_sys_call+0x1567/0x1570 [ 16.627035][ T198] do_syscall_64+0xff/0x530 [ 16.627039][ T198] ? irq_exit_rcu+0x1a/0x30 [ 16.627042][ T198] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 16.627044][ T198] RIP: 0033:0x479678 [ 16.627046][ T198] Code: Unable to access opcode bytes at 0x47964e. [ 16.627047][ T198] RSP: 002b:00007ffe800f9ff8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 16.627049][ T198] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 16.627051][ T198] RDX: 00000000257fa708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 16.627052][ T198] RBP: 00007ffe800fa050 R08: 0000000000000000 R09: 00000000257fb3e0 [ 16.627053][ T198] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffe800fa188 [ 16.627053][ T198] R13: 00007ffe800fa210 R14: 0000000000000000 R15: 000000000054d560 [ 16.627060][ T198]