[ 9.811667][ T185] ip (185) used greatest stack depth: 23632 bytes left [ 9.811683][ T185] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.811685][ T185] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 185, name: ip [ 9.811687][ T185] preempt_count: 2, expected: 0 [ 9.811688][ T185] RCU nest depth: 0, expected: 0 [ 9.811689][ T185] locks held by ip/185: 5, last CPU#3: [ 9.811691][ T185] #0: ffffffffbb0267b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.811703][ T185] #1: ffffffffbb18dcc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.811709][ T185] #2: ffffffffbb18dd38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.811713][ T185] #3: ffffffffbb0ad660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.811717][ T185] #4: ffffffffbb0ad560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.811721][ T185] irq event stamp: 23558 [ 9.811721][ T185] hardirqs last enabled at (23557): [] __down_trylock_console_sem+0x86/0xa0 [ 9.811724][ T185] hardirqs last disabled at (23558): [] console_emit_next_record+0x3d4/0x4c0 [ 9.811726][ T185] softirqs last enabled at (22346): [] handle_softirqs+0x67c/0x900 [ 9.811728][ T185] softirqs last disabled at (22337): [] __irq_exit_rcu+0x145/0x1c0 [ 9.811730][ T185] Preemption disabled at: [ 9.811731][ T185] [<0000000000000000>] 0x0 [ 9.811738][ T185] CPU: 3 UID: 0 PID: 185 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.811741][ T185] Tainted: [W]=WARN [ 9.811742][ T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.811744][ T185] Call Trace: [ 9.811746][ T185] [ 9.811748][ T185] dump_stack_lvl+0x6f/0xa0 [ 9.811754][ T185] __might_resched.cold+0x1fe/0x2c1 [ 9.811759][ T185] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.811763][ T185] ? __kmalloc_noprof+0xdb/0x760 [ 9.811768][ T185] __kmalloc_noprof+0x443/0x760 [ 9.811770][ T185] ? alloc_buf.isra.0+0x4b/0x260 [ 9.811777][ T185] ? do_raw_spin_unlock+0x59/0x250 [ 9.811780][ T185] alloc_buf.isra.0+0x4b/0x260 [ 9.811783][ T185] put_chars+0x1e1/0x2f0 [ 9.811787][ T185] ? __send_to_port+0x420/0x420 [ 9.811789][ T185] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.811794][ T185] ? validate_chain+0x38b/0xc20 [ 9.811799][ T185] hvc_console_print+0x292/0x780 [ 9.811807][ T185] ? hvc_write+0x3a0/0x3a0 [ 9.811810][ T185] ? rcu_is_watching+0x16/0xd0 [ 9.811812][ T185] ? lock_acquire+0x13c/0x160 [ 9.811816][ T185] console_emit_next_record+0x22f/0x4c0 [ 9.811820][ T185] ? devkmsg_read+0x4b0/0x4b0 [ 9.811822][ T185] ? console_flush_one_record+0x106/0x710 [ 9.811827][ T185] ? rcu_is_watching+0x16/0xd0 [ 9.811829][ T185] ? lock_acquire+0x13c/0x160 [ 9.811833][ T185] console_flush_one_record+0x46f/0x710 [ 9.811837][ T185] ? console_emit_next_record+0x4c0/0x4c0 [ 9.811839][ T185] ? __lock_acquire+0x518/0xc20 [ 9.811844][ T185] console_unlock+0xee/0x1f0 [ 9.811847][ T185] ? console_flush_one_record+0x710/0x710 [ 9.811849][ T185] ? rcu_is_watching+0x16/0xd0 [ 9.811851][ T185] ? lock_acquire+0x60/0x160 [ 9.811855][ T185] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.811856][ T185] ? vprintk_emit+0x320/0x3e0 [ 9.811860][ T185] vprintk_emit+0x37c/0x3e0 [ 9.811863][ T185] ? wake_up_klogd_work_func+0x90/0x90 [ 9.811867][ T185] ? __lock_acquire+0x518/0xc20 [ 9.811871][ T185] _printk+0xc7/0x100 [ 9.811875][ T185] ? snapshot_read.cold+0x21/0x21 [ 9.811878][ T185] ? do_raw_spin_lock+0x131/0x280 [ 9.811880][ T185] ? __rwlock_init+0x150/0x150 [ 9.811884][ T185] ? do_raw_spin_lock+0x131/0x280 [ 9.811887][ T185] do_exit.cold+0x82/0x9c [ 9.811890][ T185] ? exit_notify+0x890/0x890 [ 9.811892][ T185] ? __lock_release.isra.0+0x69/0x1a0 [ 9.811895][ T185] ? rcu_is_watching+0x16/0xd0 [ 9.811899][ T185] do_group_exit+0xb8/0x370 [ 9.811903][ T185] __x64_sys_exit_group+0x3c/0x50 [ 9.811905][ T185] x64_sys_call+0x1567/0x1570 [ 9.811907][ T185] do_syscall_64+0xff/0x530 [ 9.811911][ T185] ? exc_page_fault+0xee/0x100 [ 9.811915][ T185] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.811917][ T185] RIP: 0033:0x7f76160541b8 [ 9.811920][ T185] Code: Unable to access opcode bytes at 0x7f761605418e. [ 9.811921][ T185] RSP: 002b:00007ffdf801ea88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.811923][ T185] RAX: ffffffffffffffda RBX: 00007f7616184f88 RCX: 00007f76160541b8 [ 9.811924][ T185] RDX: 00007f7615d9efc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.811925][ T185] RBP: 00007ffdf801eae0 R08: 0000000000000000 R09: 0000000000000050 [ 9.811926][ T185] R10: 00007ffdf801e8a0 R11: 0000000000000246 R12: 0000000000000001 [ 9.811927][ T185] R13: 0000000000000000 R14: 00007f7616183680 R15: 00007f7616184fa0 [ 9.811935][ T185]