[ 11.013976][ T200] ip (200) used greatest stack depth: 24208 bytes left [ 11.013992][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.013994][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: ip [ 11.013995][ T200] preempt_count: 2, expected: 0 [ 11.013996][ T200] RCU nest depth: 0, expected: 0 [ 11.013997][ T200] locks held by ip/200: 5, last CPU#3: [ 11.013999][ T200] #0: ffffffffba6167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.014010][ T200] #1: ffffffffba77ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.014015][ T200] #2: ffffffffba77de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.014019][ T200] #3: ffffffffba69d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.014023][ T200] #4: ffffffffba69d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.014026][ T200] irq event stamp: 30604 [ 11.014027][ T200] hardirqs last enabled at (30603): [] __down_trylock_console_sem+0x86/0xa0 [ 11.014030][ T200] hardirqs last disabled at (30604): [] console_emit_next_record+0x3d4/0x4c0 [ 11.014032][ T200] softirqs last enabled at (30284): [] handle_softirqs+0x67c/0x900 [ 11.014034][ T200] softirqs last disabled at (30279): [] __irq_exit_rcu+0x145/0x1c0 [ 11.014037][ T200] Preemption disabled at: [ 11.014037][ T200] [<0000000000000000>] 0x0 [ 11.014044][ T200] CPU: 3 UID: 0 PID: 200 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.014047][ T200] Tainted: [W]=WARN [ 11.014048][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.014050][ T200] Call Trace: [ 11.014051][ T200] [ 11.014053][ T200] dump_stack_lvl+0x6f/0xa0 [ 11.014059][ T200] __might_resched.cold+0x1fe/0x2c1 [ 11.014064][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.014068][ T200] ? __kmalloc_noprof+0xdb/0x760 [ 11.014072][ T200] __kmalloc_noprof+0x443/0x760 [ 11.014074][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 11.014081][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 11.014084][ T200] alloc_buf.isra.0+0x4b/0x260 [ 11.014087][ T200] put_chars+0x1e1/0x2f0 [ 11.014090][ T200] ? __send_to_port+0x420/0x420 [ 11.014091][ T200] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.014094][ T200] ? validate_chain+0x38b/0xc20 [ 11.014099][ T200] hvc_console_print+0x292/0x780 [ 11.014107][ T200] ? hvc_write+0x3a0/0x3a0 [ 11.014110][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.014115][ T200] ? lock_acquire+0x13c/0x160 [ 11.014119][ T200] console_emit_next_record+0x22f/0x4c0 [ 11.014123][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 11.014125][ T200] ? console_flush_one_record+0x106/0x710 [ 11.014128][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.014130][ T200] ? lock_acquire+0x13c/0x160 [ 11.014134][ T200] console_flush_one_record+0x46f/0x710 [ 11.014138][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 11.014140][ T200] ? __lock_acquire+0x518/0xc20 [ 11.014145][ T200] console_unlock+0xee/0x1f0 [ 11.014148][ T200] ? console_flush_one_record+0x710/0x710 [ 11.014150][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.014152][ T200] ? lock_acquire+0xe0/0x160 [ 11.014155][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.014157][ T200] ? vprintk_emit+0x320/0x3e0 [ 11.014160][ T200] vprintk_emit+0x37c/0x3e0 [ 11.014163][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 11.014166][ T200] ? __lock_acquire+0x518/0xc20 [ 11.014169][ T200] _printk+0xc7/0x100 [ 11.014173][ T200] ? snapshot_read.cold+0x21/0x21 [ 11.014176][ T200] ? do_raw_spin_lock+0x131/0x280 [ 11.014178][ T200] ? __rwlock_init+0x150/0x150 [ 11.014182][ T200] ? do_raw_spin_lock+0x131/0x280 [ 11.014185][ T200] do_exit.cold+0x82/0x9c [ 11.014188][ T200] ? exit_notify+0x890/0x890 [ 11.014190][ T200] ? __lock_release.isra.0+0x69/0x1a0 [ 11.014193][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.014196][ T200] do_group_exit+0xb8/0x370 [ 11.014199][ T200] __x64_sys_exit_group+0x3c/0x50 [ 11.014201][ T200] x64_sys_call+0x1567/0x1570 [ 11.014203][ T200] do_syscall_64+0xff/0x530 [ 11.014207][ T200] ? exc_page_fault+0xee/0x100 [ 11.014210][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.014212][ T200] RIP: 0033:0x7fad606a41b8 [ 11.014214][ T200] Code: Unable to access opcode bytes at 0x7fad606a418e. [ 11.014215][ T200] RSP: 002b:00007ffd66ded8d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.014217][ T200] RAX: ffffffffffffffda RBX: 00007fad607d4f88 RCX: 00007fad606a41b8 [ 11.014219][ T200] RDX: 00007fad603eefc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 11.014220][ T200] RBP: 00007ffd66ded930 R08: 0000000000000000 R09: 0000000000008010 [ 11.014220][ T200] R10: 00007ffd66ded6f0 R11: 0000000000000246 R12: 0000000000000001 [ 11.014221][ T200] R13: 0000000000000000 R14: 00007fad607d3680 R15: 00007fad607d4fa0 [ 11.014228][ T200]