[ 10.177903][ T194] ip (194) used greatest stack depth: 23928 bytes left [ 10.177920][ T194] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.177922][ T194] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 194, name: ip [ 10.177924][ T194] preempt_count: 2, expected: 0 [ 10.177925][ T194] RCU nest depth: 0, expected: 0 [ 10.177926][ T194] locks held by ip/194: 5, last CPU#0: [ 10.177929][ T194] #0: ffffffffa94167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.177940][ T194] #1: ffffffffa957ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.177945][ T194] #2: ffffffffa957de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.177950][ T194] #3: ffffffffa949d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.177953][ T194] #4: ffffffffa949d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.177957][ T194] irq event stamp: 26374 [ 10.177958][ T194] hardirqs last enabled at (26373): [] __down_trylock_console_sem+0x86/0xa0 [ 10.177962][ T194] hardirqs last disabled at (26374): [] console_emit_next_record+0x3d4/0x4c0 [ 10.177964][ T194] softirqs last enabled at (26366): [] handle_softirqs+0x67c/0x900 [ 10.177966][ T194] softirqs last disabled at (26357): [] __irq_exit_rcu+0x145/0x1c0 [ 10.177969][ T194] Preemption disabled at: [ 10.177969][ T194] [<0000000000000000>] 0x0 [ 10.177976][ T194] CPU: 0 UID: 0 PID: 194 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.177979][ T194] Tainted: [W]=WARN [ 10.177980][ T194] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.177982][ T194] Call Trace: [ 10.177983][ T194] [ 10.177985][ T194] dump_stack_lvl+0x6f/0xa0 [ 10.177992][ T194] __might_resched.cold+0x1fe/0x2c1 [ 10.177997][ T194] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.178001][ T194] ? __kmalloc_noprof+0xdb/0x760 [ 10.178005][ T194] __kmalloc_noprof+0x443/0x760 [ 10.178007][ T194] ? alloc_buf.isra.0+0x4b/0x260 [ 10.178014][ T194] ? do_raw_spin_unlock+0x59/0x250 [ 10.178017][ T194] alloc_buf.isra.0+0x4b/0x260 [ 10.178021][ T194] put_chars+0x1e1/0x2f0 [ 10.178023][ T194] ? __send_to_port+0x420/0x420 [ 10.178025][ T194] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.178028][ T194] ? validate_chain+0x38b/0xc20 [ 10.178034][ T194] hvc_console_print+0x292/0x780 [ 10.178042][ T194] ? hvc_write+0x3a0/0x3a0 [ 10.178044][ T194] ? rcu_is_watching+0x16/0xd0 [ 10.178047][ T194] ? lock_acquire+0x13c/0x160 [ 10.178051][ T194] console_emit_next_record+0x22f/0x4c0 [ 10.178055][ T194] ? devkmsg_read+0x4b0/0x4b0 [ 10.178057][ T194] ? console_flush_one_record+0x106/0x710 [ 10.178060][ T194] ? rcu_is_watching+0x16/0xd0 [ 10.178062][ T194] ? lock_acquire+0x13c/0x160 [ 10.178066][ T194] console_flush_one_record+0x46f/0x710 [ 10.178071][ T194] ? console_emit_next_record+0x4c0/0x4c0 [ 10.178073][ T194] ? __lock_acquire+0x518/0xc20 [ 10.178078][ T194] console_unlock+0xee/0x1f0 [ 10.178081][ T194] ? console_flush_one_record+0x710/0x710 [ 10.178083][ T194] ? rcu_is_watching+0x16/0xd0 [ 10.178085][ T194] ? lock_acquire+0xe0/0x160 [ 10.178089][ T194] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.178091][ T194] ? vprintk_emit+0x320/0x3e0 [ 10.178094][ T194] vprintk_emit+0x37c/0x3e0 [ 10.178097][ T194] ? wake_up_klogd_work_func+0x90/0x90 [ 10.178100][ T194] ? __lock_acquire+0x518/0xc20 [ 10.178104][ T194] _printk+0xc7/0x100 [ 10.178108][ T194] ? snapshot_read.cold+0x21/0x21 [ 10.178111][ T194] ? do_raw_spin_lock+0x131/0x280 [ 10.178114][ T194] ? __rwlock_init+0x150/0x150 [ 10.178118][ T194] ? do_raw_spin_lock+0x131/0x280 [ 10.178121][ T194] do_exit.cold+0x82/0x9c [ 10.178125][ T194] ? exit_notify+0x890/0x890 [ 10.178127][ T194] ? __lock_release.isra.0+0x69/0x1a0 [ 10.178130][ T194] ? rcu_is_watching+0x16/0xd0 [ 10.178133][ T194] do_group_exit+0xb8/0x370 [ 10.178136][ T194] __x64_sys_exit_group+0x3c/0x50 [ 10.178138][ T194] x64_sys_call+0x1567/0x1570 [ 10.178141][ T194] do_syscall_64+0xff/0x530 [ 10.178145][ T194] ? exc_page_fault+0xee/0x100 [ 10.178148][ T194] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.178150][ T194] RIP: 0033:0x7f659f4fb1b8 [ 10.178152][ T194] Code: Unable to access opcode bytes at 0x7f659f4fb18e. [ 10.178154][ T194] RSP: 002b:00007ffece6b5a08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.178156][ T194] RAX: ffffffffffffffda RBX: 00007f659f62bf88 RCX: 00007f659f4fb1b8 [ 10.178158][ T194] RDX: 00007f659f245fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.178159][ T194] RBP: 00007ffece6b5a60 R08: 0000000000000000 R09: 0000000000000050 [ 10.178159][ T194] R10: 00007ffece6b5820 R11: 0000000000000246 R12: 0000000000000001 [ 10.178160][ T194] R13: 0000000000000000 R14: 00007f659f62a680 R15: 00007f659f62bfa0 [ 10.178167][ T194]