[ 10.742619][ T181] ip (181) used greatest stack depth: 24080 bytes left [ 10.742637][ T181] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.742639][ T181] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 181, name: ip [ 10.742641][ T181] preempt_count: 2, expected: 0 [ 10.742642][ T181] RCU nest depth: 0, expected: 0 [ 10.742643][ T181] locks held by ip/181: 5, last CPU#2: [ 10.742645][ T181] #0: fffffffface02f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 10.742657][ T181] #1: ffffffffacf6a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.742662][ T181] #2: ffffffffacf6a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.742665][ T181] #3: fffffffface89de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.742668][ T181] #4: fffffffface89ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.742672][ T181] irq event stamp: 22678 [ 10.742672][ T181] hardirqs last enabled at (22677): [] __down_trylock_console_sem+0x86/0xa0 [ 10.742676][ T181] hardirqs last disabled at (22678): [] console_emit_next_record+0x3d4/0x4c0 [ 10.742677][ T181] softirqs last enabled at (21224): [] handle_softirqs+0x67c/0x900 [ 10.742679][ T181] softirqs last disabled at (21215): [] __irq_exit_rcu+0x145/0x1c0 [ 10.742682][ T181] Preemption disabled at: [ 10.742682][ T181] [<0000000000000000>] 0x0 [ 10.742689][ T181] CPU: 2 UID: 0 PID: 181 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.742692][ T181] Tainted: [W]=WARN [ 10.742693][ T181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.742695][ T181] Call Trace: [ 10.742696][ T181] [ 10.742698][ T181] dump_stack_lvl+0x6f/0xa0 [ 10.742703][ T181] __might_resched.cold+0x1fe/0x2c1 [ 10.742708][ T181] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.742711][ T181] ? __kmalloc_noprof+0xdb/0x760 [ 10.742716][ T181] __kmalloc_noprof+0x443/0x760 [ 10.742719][ T181] ? alloc_buf.isra.0+0x4b/0x260 [ 10.742725][ T181] ? do_raw_spin_unlock+0x59/0x250 [ 10.742728][ T181] alloc_buf.isra.0+0x4b/0x260 [ 10.742731][ T181] put_chars+0x1e1/0x2f0 [ 10.742734][ T181] ? __send_to_port+0x420/0x420 [ 10.742740][ T181] hvc_console_print+0x292/0x780 [ 10.742747][ T181] ? hvc_write+0x3a0/0x3a0 [ 10.742749][ T181] ? lock_acquire+0x13c/0x160 [ 10.742754][ T181] console_emit_next_record+0x22f/0x4c0 [ 10.742757][ T181] ? devkmsg_read+0x4b0/0x4b0 [ 10.742758][ T181] ? console_flush_one_record+0x106/0x710 [ 10.742761][ T181] ? rcu_is_watching+0x16/0xd0 [ 10.742764][ T181] ? lock_acquire+0x13c/0x160 [ 10.742768][ T181] console_flush_one_record+0x46f/0x710 [ 10.742772][ T181] ? console_emit_next_record+0x4c0/0x4c0 [ 10.742773][ T181] ? __lock_acquire+0x518/0xc20 [ 10.742778][ T181] console_unlock+0xee/0x1f0 [ 10.742781][ T181] ? console_flush_one_record+0x710/0x710 [ 10.742782][ T181] ? rcu_is_watching+0x16/0xd0 [ 10.742784][ T181] ? lock_acquire+0x60/0x160 [ 10.742787][ T181] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.742789][ T181] ? vprintk_emit+0x320/0x3e0 [ 10.742792][ T181] vprintk_emit+0x37c/0x3e0 [ 10.742795][ T181] ? wake_up_klogd_work_func+0x90/0x90 [ 10.742798][ T181] ? __lock_acquire+0x518/0xc20 [ 10.742802][ T181] _printk+0xc7/0x100 [ 10.742805][ T181] ? snapshot_read.cold+0x21/0x21 [ 10.742808][ T181] ? do_raw_spin_lock+0x131/0x280 [ 10.742810][ T181] ? __rwlock_init+0x150/0x150 [ 10.742814][ T181] ? do_raw_spin_lock+0x131/0x280 [ 10.742817][ T181] do_exit.cold+0x82/0x9c [ 10.742821][ T181] ? exit_notify+0x890/0x890 [ 10.742822][ T181] ? __lock_release.isra.0+0x69/0x1a0 [ 10.742825][ T181] ? rcu_is_watching+0x16/0xd0 [ 10.742829][ T181] do_group_exit+0xb8/0x370 [ 10.742832][ T181] __x64_sys_exit_group+0x3c/0x50 [ 10.742834][ T181] x64_sys_call+0x1567/0x1570 [ 10.742837][ T181] do_syscall_64+0x10e/0x570 [ 10.742840][ T181] ? exc_page_fault+0xee/0x100 [ 10.742843][ T181] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.742845][ T181] RIP: 0033:0x7f6cb79e81b8 [ 10.742847][ T181] Code: Unable to access opcode bytes at 0x7f6cb79e818e. [ 10.742848][ T181] RSP: 002b:00007ffd3d085b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.742851][ T181] RAX: ffffffffffffffda RBX: 00007f6cb7b18f88 RCX: 00007f6cb79e81b8 [ 10.742852][ T181] RDX: 00007f6cb7732fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.742853][ T181] RBP: 00007ffd3d085ba0 R08: 0000000000000000 R09: 0000000000000050 [ 10.742854][ T181] R10: 00007ffd3d085960 R11: 0000000000000246 R12: 0000000000000001 [ 10.742854][ T181] R13: 0000000000000000 R14: 00007f6cb7b17680 R15: 00007f6cb7b18fa0 [ 10.742861][ T181]