[ 11.383828][ T176] ip (176) used greatest stack depth: 24000 bytes left [ 11.383844][ T176] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.383846][ T176] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 176, name: ip [ 11.383847][ T176] preempt_count: 2, expected: 0 [ 11.383848][ T176] RCU nest depth: 0, expected: 0 [ 11.383849][ T176] locks held by ip/176: 5, last CPU#3: [ 11.383856][ T176] #0: ffffffff92802f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 11.383868][ T176] #1: ffffffff9296a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.383873][ T176] #2: ffffffff9296a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.383876][ T176] #3: ffffffff92889de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.383880][ T176] #4: ffffffff92889ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.383883][ T176] irq event stamp: 30126 [ 11.383884][ T176] hardirqs last enabled at (30125): [] __down_trylock_console_sem+0x86/0xa0 [ 11.383887][ T176] hardirqs last disabled at (30126): [] console_emit_next_record+0x3d4/0x4c0 [ 11.383889][ T176] softirqs last enabled at (29908): [] handle_softirqs+0x67c/0x900 [ 11.383891][ T176] softirqs last disabled at (29903): [] __irq_exit_rcu+0x145/0x1c0 [ 11.383894][ T176] Preemption disabled at: [ 11.383894][ T176] [<0000000000000000>] 0x0 [ 11.383901][ T176] CPU: 3 UID: 0 PID: 176 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.383904][ T176] Tainted: [W]=WARN [ 11.383905][ T176] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.383907][ T176] Call Trace: [ 11.383909][ T176] [ 11.383910][ T176] dump_stack_lvl+0x6f/0xa0 [ 11.383916][ T176] __might_resched.cold+0x1fe/0x2c1 [ 11.383920][ T176] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.383923][ T176] ? __kmalloc_noprof+0xdb/0x760 [ 11.383928][ T176] __kmalloc_noprof+0x443/0x760 [ 11.383931][ T176] ? alloc_buf.isra.0+0x4b/0x260 [ 11.383937][ T176] ? do_raw_spin_unlock+0x59/0x250 [ 11.383940][ T176] alloc_buf.isra.0+0x4b/0x260 [ 11.383943][ T176] put_chars+0x1e1/0x2f0 [ 11.383946][ T176] ? __send_to_port+0x420/0x420 [ 11.383952][ T176] hvc_console_print+0x292/0x780 [ 11.383959][ T176] ? hvc_write+0x3a0/0x3a0 [ 11.383962][ T176] ? lock_acquire+0x13c/0x160 [ 11.383967][ T176] console_emit_next_record+0x22f/0x4c0 [ 11.383970][ T176] ? devkmsg_read+0x4b0/0x4b0 [ 11.383971][ T176] ? console_flush_one_record+0x106/0x710 [ 11.383974][ T176] ? rcu_is_watching+0x16/0xd0 [ 11.383977][ T176] ? lock_acquire+0x13c/0x160 [ 11.383981][ T176] console_flush_one_record+0x46f/0x710 [ 11.383985][ T176] ? console_emit_next_record+0x4c0/0x4c0 [ 11.383986][ T176] ? __lock_acquire+0x518/0xc20 [ 11.383991][ T176] console_unlock+0xee/0x1f0 [ 11.383993][ T176] ? console_flush_one_record+0x710/0x710 [ 11.383995][ T176] ? rcu_is_watching+0x16/0xd0 [ 11.383997][ T176] ? lock_acquire+0x60/0x160 [ 11.384000][ T176] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.384002][ T176] ? vprintk_emit+0x320/0x3e0 [ 11.384005][ T176] vprintk_emit+0x37c/0x3e0 [ 11.384008][ T176] ? wake_up_klogd_work_func+0x90/0x90 [ 11.384011][ T176] ? __lock_acquire+0x518/0xc20 [ 11.384015][ T176] _printk+0xc7/0x100 [ 11.384018][ T176] ? snapshot_read.cold+0x21/0x21 [ 11.384021][ T176] ? do_raw_spin_lock+0x131/0x280 [ 11.384023][ T176] ? __rwlock_init+0x150/0x150 [ 11.384027][ T176] ? do_raw_spin_lock+0x131/0x280 [ 11.384030][ T176] do_exit.cold+0x82/0x9c [ 11.384034][ T176] ? exit_notify+0x890/0x890 [ 11.384035][ T176] ? __lock_release.isra.0+0x69/0x1a0 [ 11.384038][ T176] ? rcu_is_watching+0x16/0xd0 [ 11.384042][ T176] do_group_exit+0xb8/0x370 [ 11.384045][ T176] __x64_sys_exit_group+0x3c/0x50 [ 11.384047][ T176] x64_sys_call+0x1567/0x1570 [ 11.384050][ T176] do_syscall_64+0x10e/0x570 [ 11.384053][ T176] ? exc_page_fault+0xee/0x100 [ 11.384056][ T176] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.384058][ T176] RIP: 0033:0x7f836d4371b8 [ 11.384061][ T176] Code: Unable to access opcode bytes at 0x7f836d43718e. [ 11.384061][ T176] RSP: 002b:00007fff73026aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.384064][ T176] RAX: ffffffffffffffda RBX: 00007f836d567f88 RCX: 00007f836d4371b8 [ 11.384065][ T176] RDX: 00007f836d181fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 11.384066][ T176] RBP: 00007fff73026b00 R08: 0000000000000000 R09: 0000000000000050 [ 11.384067][ T176] R10: 00007fff730268c0 R11: 0000000000000246 R12: 0000000000000001 [ 11.384068][ T176] R13: 0000000000000000 R14: 00007f836d566680 R15: 00007f836d567fa0 [ 11.384074][ T176]