[ 11.301327][ T193] ip (193) used greatest stack depth: 23888 bytes left [ 11.301343][ T193] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.301345][ T193] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 193, name: ip [ 11.301347][ T193] preempt_count: 2, expected: 0 [ 11.301348][ T193] RCU nest depth: 0, expected: 0 [ 11.301349][ T193] locks held by ip/193: 5, last CPU#3: [ 11.301351][ T193] #0: ffffffffaae02f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 11.301363][ T193] #1: ffffffffaaf6a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.301368][ T193] #2: ffffffffaaf6a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.301371][ T193] #3: ffffffffaae89de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.301374][ T193] #4: ffffffffaae89ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.301378][ T193] irq event stamp: 36048 [ 11.301379][ T193] hardirqs last enabled at (36047): [] __down_trylock_console_sem+0x86/0xa0 [ 11.301382][ T193] hardirqs last disabled at (36048): [] console_emit_next_record+0x3d4/0x4c0 [ 11.301384][ T193] softirqs last enabled at (35294): [] handle_softirqs+0x67c/0x900 [ 11.301386][ T193] softirqs last disabled at (35285): [] __irq_exit_rcu+0x145/0x1c0 [ 11.301389][ T193] Preemption disabled at: [ 11.301390][ T193] [<0000000000000000>] 0x0 [ 11.301397][ T193] CPU: 3 UID: 0 PID: 193 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.301401][ T193] Tainted: [W]=WARN [ 11.301402][ T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.301403][ T193] Call Trace: [ 11.301405][ T193] [ 11.301406][ T193] dump_stack_lvl+0x6f/0xa0 [ 11.301412][ T193] __might_resched.cold+0x1fe/0x2c1 [ 11.301416][ T193] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.301420][ T193] ? __kmalloc_noprof+0xdb/0x760 [ 11.301425][ T193] __kmalloc_noprof+0x443/0x760 [ 11.301427][ T193] ? alloc_buf.isra.0+0x4b/0x260 [ 11.301434][ T193] ? do_raw_spin_unlock+0x59/0x250 [ 11.301437][ T193] alloc_buf.isra.0+0x4b/0x260 [ 11.301440][ T193] put_chars+0x1e1/0x2f0 [ 11.301443][ T193] ? __send_to_port+0x420/0x420 [ 11.301450][ T193] hvc_console_print+0x292/0x780 [ 11.301457][ T193] ? hvc_write+0x3a0/0x3a0 [ 11.301460][ T193] ? lock_acquire+0x13c/0x160 [ 11.301465][ T193] console_emit_next_record+0x22f/0x4c0 [ 11.301468][ T193] ? devkmsg_read+0x4b0/0x4b0 [ 11.301470][ T193] ? console_flush_one_record+0x106/0x710 [ 11.301472][ T193] ? rcu_is_watching+0x16/0xd0 [ 11.301476][ T193] ? lock_acquire+0x13c/0x160 [ 11.301480][ T193] console_flush_one_record+0x46f/0x710 [ 11.301484][ T193] ? console_emit_next_record+0x4c0/0x4c0 [ 11.301485][ T193] ? __lock_acquire+0x518/0xc20 [ 11.301491][ T193] console_unlock+0xee/0x1f0 [ 11.301493][ T193] ? console_flush_one_record+0x710/0x710 [ 11.301494][ T193] ? rcu_is_watching+0x16/0xd0 [ 11.301496][ T193] ? lock_acquire+0x60/0x160 [ 11.301500][ T193] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.301502][ T193] ? vprintk_emit+0x320/0x3e0 [ 11.301505][ T193] vprintk_emit+0x37c/0x3e0 [ 11.301508][ T193] ? wake_up_klogd_work_func+0x90/0x90 [ 11.301511][ T193] ? __lock_acquire+0x518/0xc20 [ 11.301515][ T193] _printk+0xc7/0x100 [ 11.301519][ T193] ? snapshot_read.cold+0x21/0x21 [ 11.301521][ T193] ? do_raw_spin_lock+0x131/0x280 [ 11.301524][ T193] ? __rwlock_init+0x150/0x150 [ 11.301528][ T193] ? do_raw_spin_lock+0x131/0x280 [ 11.301531][ T193] do_exit.cold+0x82/0x9c [ 11.301535][ T193] ? exit_notify+0x890/0x890 [ 11.301537][ T193] ? __lock_release.isra.0+0x69/0x1a0 [ 11.301539][ T193] ? rcu_is_watching+0x16/0xd0 [ 11.301543][ T193] do_group_exit+0xb8/0x370 [ 11.301546][ T193] __x64_sys_exit_group+0x3c/0x50 [ 11.301549][ T193] x64_sys_call+0x1567/0x1570 [ 11.301551][ T193] do_syscall_64+0x10e/0x570 [ 11.301555][ T193] ? exc_page_fault+0xee/0x100 [ 11.301558][ T193] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.301560][ T193] RIP: 0033:0x7f548fe431b8 [ 11.301563][ T193] Code: Unable to access opcode bytes at 0x7f548fe4318e. [ 11.301564][ T193] RSP: 002b:00007ffe448bab28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.301566][ T193] RAX: ffffffffffffffda RBX: 00007f548ff73f88 RCX: 00007f548fe431b8 [ 11.301567][ T193] RDX: 00007f548fb8dfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 11.301568][ T193] RBP: 00007ffe448bab80 R08: 0000000000000000 R09: 0000000000000000 [ 11.301569][ T193] R10: 00007ffe448ba940 R11: 0000000000000246 R12: 0000000000000001 [ 11.301570][ T193] R13: 0000000000000000 R14: 00007f548ff72680 R15: 00007f548ff73fa0 [ 11.301577][ T193]