[ 10.750191][ T199] ip (199) used greatest stack depth: 23888 bytes left [ 10.750214][ T199] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.750217][ T199] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 199, name: ip [ 10.750219][ T199] preempt_count: 2, expected: 0 [ 10.750221][ T199] RCU nest depth: 0, expected: 0 [ 10.750222][ T199] locks held by ip/199: 5, last CPU#2: [ 10.750224][ T199] #0: ffffffffaa0167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.750239][ T199] #1: ffffffffaa17ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.750246][ T199] #2: ffffffffaa17de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.750253][ T199] #3: ffffffffaa09d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.750258][ T199] #4: ffffffffaa09d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.750265][ T199] irq event stamp: 29708 [ 10.750266][ T199] hardirqs last enabled at (29707): [] __down_trylock_console_sem+0x86/0xa0 [ 10.750270][ T199] hardirqs last disabled at (29708): [] console_emit_next_record+0x3d4/0x4c0 [ 10.750273][ T199] softirqs last enabled at (29314): [] handle_softirqs+0x67c/0x900 [ 10.750277][ T199] softirqs last disabled at (29305): [] __irq_exit_rcu+0x145/0x1c0 [ 10.750280][ T199] Preemption disabled at: [ 10.750281][ T199] [<0000000000000000>] 0x0 [ 10.750289][ T199] CPU: 2 UID: 0 PID: 199 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.750296][ T199] Tainted: [W]=WARN [ 10.750297][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.750299][ T199] Call Trace: [ 10.750302][ T199] [ 10.750304][ T199] dump_stack_lvl+0x6f/0xa0 [ 10.750312][ T199] __might_resched.cold+0x1fe/0x2c1 [ 10.750319][ T199] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.750324][ T199] ? __kmalloc_noprof+0xdb/0x760 [ 10.750331][ T199] __kmalloc_noprof+0x443/0x760 [ 10.750334][ T199] ? alloc_buf.isra.0+0x4b/0x260 [ 10.750344][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 10.750348][ T199] alloc_buf.isra.0+0x4b/0x260 [ 10.750354][ T199] put_chars+0x1e1/0x2f0 [ 10.750358][ T199] ? __send_to_port+0x420/0x420 [ 10.750360][ T199] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.750365][ T199] ? validate_chain+0x38b/0xc20 [ 10.750375][ T199] hvc_console_print+0x292/0x780 [ 10.750386][ T199] ? hvc_write+0x3a0/0x3a0 [ 10.750390][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.750393][ T199] ? lock_acquire+0x13c/0x160 [ 10.750401][ T199] console_emit_next_record+0x22f/0x4c0 [ 10.750407][ T199] ? devkmsg_read+0x4b0/0x4b0 [ 10.750410][ T199] ? console_flush_one_record+0x106/0x710 [ 10.750415][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.750418][ T199] ? lock_acquire+0x13c/0x160 [ 10.750425][ T199] console_flush_one_record+0x46f/0x710 [ 10.750432][ T199] ? console_emit_next_record+0x4c0/0x4c0 [ 10.750435][ T199] ? __lock_acquire+0x518/0xc20 [ 10.750444][ T199] console_unlock+0xee/0x1f0 [ 10.750449][ T199] ? console_flush_one_record+0x710/0x710 [ 10.750451][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.750455][ T199] ? lock_acquire+0xe0/0x160 [ 10.750461][ T199] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.750464][ T199] ? vprintk_emit+0x320/0x3e0 [ 10.750469][ T199] vprintk_emit+0x37c/0x3e0 [ 10.750474][ T199] ? wake_up_klogd_work_func+0x90/0x90 [ 10.750479][ T199] ? __lock_acquire+0x518/0xc20 [ 10.750485][ T199] _printk+0xc7/0x100 [ 10.750490][ T199] ? snapshot_read.cold+0x21/0x21 [ 10.750495][ T199] ? do_raw_spin_lock+0x131/0x280 [ 10.750499][ T199] ? __rwlock_init+0x150/0x150 [ 10.750505][ T199] ? do_raw_spin_lock+0x131/0x280 [ 10.750510][ T199] do_exit.cold+0x82/0x9c [ 10.750515][ T199] ? exit_notify+0x890/0x890 [ 10.750517][ T199] ? __lock_release.isra.0+0x69/0x1a0 [ 10.750522][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.750529][ T199] do_group_exit+0xb8/0x370 [ 10.750534][ T199] __x64_sys_exit_group+0x3c/0x50 [ 10.750537][ T199] x64_sys_call+0x1567/0x1570 [ 10.750541][ T199] do_syscall_64+0xff/0x530 [ 10.750545][ T199] ? exc_page_fault+0xee/0x100 [ 10.750550][ T199] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.750554][ T199] RIP: 0033:0x7f4a5a0f81b8 [ 10.750558][ T199] Code: Unable to access opcode bytes at 0x7f4a5a0f818e. [ 10.750559][ T199] RSP: 002b:00007ffcb946e418 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.750563][ T199] RAX: ffffffffffffffda RBX: 00007f4a5a228f88 RCX: 00007f4a5a0f81b8 [ 10.750565][ T199] RDX: 00007f4a59e42fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.750566][ T199] RBP: 00007ffcb946e470 R08: 0000000000000000 R09: 0000000000000050 [ 10.750568][ T199] R10: 00007ffcb946e230 R11: 0000000000000246 R12: 0000000000000001 [ 10.750569][ T199] R13: 0000000000000000 R14: 00007f4a5a227680 R15: 00007f4a5a228fa0 [ 10.750582][ T199] [ 10.827902][ T200] sysctl (200) used greatest stack depth: 23808 bytes left