[ 10.515728][ T202] ip (202) used greatest stack depth: 24432 bytes left [ 10.515748][ T202] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.515751][ T202] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 202, name: ip [ 10.515753][ T202] preempt_count: 2, expected: 0 [ 10.515753][ T202] RCU nest depth: 0, expected: 0 [ 10.515754][ T202] locks held by ip/202: 5, last CPU#3: [ 10.515756][ T202] #0: ffffffff8fe167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.515768][ T202] #1: ffffffff8ff7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.515773][ T202] #2: ffffffff8ff7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.515777][ T202] #3: ffffffff8fe9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.515781][ T202] #4: ffffffff8fe9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.515785][ T202] irq event stamp: 27758 [ 10.515786][ T202] hardirqs last enabled at (27757): [] __down_trylock_console_sem+0x86/0xa0 [ 10.515789][ T202] hardirqs last disabled at (27758): [] console_emit_next_record+0x3d4/0x4c0 [ 10.515791][ T202] softirqs last enabled at (27640): [] handle_softirqs+0x67c/0x900 [ 10.515793][ T202] softirqs last disabled at (27635): [] __irq_exit_rcu+0x145/0x1c0 [ 10.515795][ T202] Preemption disabled at: [ 10.515796][ T202] [<0000000000000000>] 0x0 [ 10.515803][ T202] CPU: 3 UID: 0 PID: 202 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.515807][ T202] Tainted: [W]=WARN [ 10.515808][ T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.515810][ T202] Call Trace: [ 10.515812][ T202] [ 10.515813][ T202] dump_stack_lvl+0x6f/0xa0 [ 10.515819][ T202] __might_resched.cold+0x1fe/0x2c1 [ 10.515824][ T202] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.515828][ T202] ? __kmalloc_noprof+0xdb/0x760 [ 10.515833][ T202] __kmalloc_noprof+0x443/0x760 [ 10.515835][ T202] ? alloc_buf.isra.0+0x4b/0x260 [ 10.515842][ T202] ? do_raw_spin_unlock+0x59/0x250 [ 10.515845][ T202] alloc_buf.isra.0+0x4b/0x260 [ 10.515848][ T202] put_chars+0x1e1/0x2f0 [ 10.515851][ T202] ? __send_to_port+0x420/0x420 [ 10.515852][ T202] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.515856][ T202] ? validate_chain+0x38b/0xc20 [ 10.515861][ T202] hvc_console_print+0x292/0x780 [ 10.515869][ T202] ? hvc_write+0x3a0/0x3a0 [ 10.515872][ T202] ? rcu_is_watching+0x16/0xd0 [ 10.515874][ T202] ? lock_acquire+0x13c/0x160 [ 10.515878][ T202] console_emit_next_record+0x22f/0x4c0 [ 10.515882][ T202] ? devkmsg_read+0x4b0/0x4b0 [ 10.515884][ T202] ? console_flush_one_record+0x106/0x710 [ 10.515887][ T202] ? rcu_is_watching+0x16/0xd0 [ 10.515889][ T202] ? lock_acquire+0x13c/0x160 [ 10.515893][ T202] console_flush_one_record+0x46f/0x710 [ 10.515897][ T202] ? console_emit_next_record+0x4c0/0x4c0 [ 10.515899][ T202] ? __lock_acquire+0x518/0xc20 [ 10.515905][ T202] console_unlock+0xee/0x1f0 [ 10.515907][ T202] ? console_flush_one_record+0x710/0x710 [ 10.515909][ T202] ? rcu_is_watching+0x16/0xd0 [ 10.515911][ T202] ? lock_acquire+0xe0/0x160 [ 10.515915][ T202] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.515917][ T202] ? vprintk_emit+0x320/0x3e0 [ 10.515920][ T202] vprintk_emit+0x37c/0x3e0 [ 10.515923][ T202] ? wake_up_klogd_work_func+0x90/0x90 [ 10.515926][ T202] ? __lock_acquire+0x518/0xc20 [ 10.515930][ T202] _printk+0xc7/0x100 [ 10.515934][ T202] ? snapshot_read.cold+0x21/0x21 [ 10.515936][ T202] ? do_raw_spin_lock+0x131/0x280 [ 10.515939][ T202] ? __rwlock_init+0x150/0x150 [ 10.515943][ T202] ? do_raw_spin_lock+0x131/0x280 [ 10.515946][ T202] do_exit.cold+0x82/0x9c [ 10.515950][ T202] ? exit_notify+0x890/0x890 [ 10.515951][ T202] ? __lock_release.isra.0+0x69/0x1a0 [ 10.515954][ T202] ? rcu_is_watching+0x16/0xd0 [ 10.515958][ T202] do_group_exit+0xb8/0x370 [ 10.515961][ T202] __x64_sys_exit_group+0x3c/0x50 [ 10.515963][ T202] x64_sys_call+0x1567/0x1570 [ 10.515965][ T202] do_syscall_64+0xff/0x530 [ 10.515969][ T202] ? exc_page_fault+0xee/0x100 [ 10.515972][ T202] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.515976][ T202] RIP: 0033:0x7f2dc27891b8 [ 10.515978][ T202] Code: Unable to access opcode bytes at 0x7f2dc278918e. [ 10.515979][ T202] RSP: 002b:00007ffc8ed245e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.515982][ T202] RAX: ffffffffffffffda RBX: 00007f2dc28b9f88 RCX: 00007f2dc27891b8 [ 10.515983][ T202] RDX: 00007f2dc24d3fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.515984][ T202] RBP: 00007ffc8ed24640 R08: 0000000000000000 R09: 0000000000000050 [ 10.515985][ T202] R10: 00007ffc8ed24400 R11: 0000000000000246 R12: 0000000000000001 [ 10.515986][ T202] R13: 0000000000000000 R14: 00007f2dc28b8680 R15: 00007f2dc28b9fa0 [ 10.515993][ T202]