[ 11.324488][ T199] ip (199) used greatest stack depth: 24720 bytes left [ 11.324507][ T199] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.324510][ T199] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 199, name: ip [ 11.324511][ T199] preempt_count: 2, expected: 0 [ 11.324512][ T199] RCU nest depth: 0, expected: 0 [ 11.324513][ T199] locks held by ip/199: 5, last CPU#2: [ 11.324516][ T199] #0: ffffffff8fa167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.324527][ T199] #1: ffffffff8fb7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.324532][ T199] #2: ffffffff8fb7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.324537][ T199] #3: ffffffff8fa9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.324540][ T199] #4: ffffffff8fa9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.324544][ T199] irq event stamp: 29922 [ 11.324545][ T199] hardirqs last enabled at (29921): [] __down_trylock_console_sem+0x86/0xa0 [ 11.324549][ T199] hardirqs last disabled at (29922): [] console_emit_next_record+0x3d4/0x4c0 [ 11.324551][ T199] softirqs last enabled at (29702): [] handle_softirqs+0x67c/0x900 [ 11.324553][ T199] softirqs last disabled at (29695): [] __irq_exit_rcu+0x145/0x1c0 [ 11.324556][ T199] Preemption disabled at: [ 11.324557][ T199] [<0000000000000000>] 0x0 [ 11.324564][ T199] CPU: 2 UID: 0 PID: 199 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.324568][ T199] Tainted: [W]=WARN [ 11.324569][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.324570][ T199] Call Trace: [ 11.324572][ T199] [ 11.324574][ T199] dump_stack_lvl+0x6f/0xa0 [ 11.324580][ T199] __might_resched.cold+0x1fe/0x2c1 [ 11.324585][ T199] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.324589][ T199] ? __kmalloc_noprof+0xdb/0x760 [ 11.324593][ T199] __kmalloc_noprof+0x443/0x760 [ 11.324595][ T199] ? alloc_buf.isra.0+0x4b/0x260 [ 11.324602][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 11.324606][ T199] alloc_buf.isra.0+0x4b/0x260 [ 11.324612][ T199] put_chars+0x1e1/0x2f0 [ 11.324615][ T199] ? __send_to_port+0x420/0x420 [ 11.324616][ T199] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.324620][ T199] ? validate_chain+0x38b/0xc20 [ 11.324626][ T199] hvc_console_print+0x292/0x780 [ 11.324633][ T199] ? hvc_write+0x3a0/0x3a0 [ 11.324636][ T199] ? rcu_is_watching+0x16/0xd0 [ 11.324639][ T199] ? lock_acquire+0x13c/0x160 [ 11.324643][ T199] console_emit_next_record+0x22f/0x4c0 [ 11.324647][ T199] ? devkmsg_read+0x4b0/0x4b0 [ 11.324649][ T199] ? console_flush_one_record+0x106/0x710 [ 11.324652][ T199] ? rcu_is_watching+0x16/0xd0 [ 11.324654][ T199] ? lock_acquire+0x13c/0x160 [ 11.324658][ T199] console_flush_one_record+0x46f/0x710 [ 11.324662][ T199] ? console_emit_next_record+0x4c0/0x4c0 [ 11.324664][ T199] ? __lock_acquire+0x518/0xc20 [ 11.324670][ T199] console_unlock+0xee/0x1f0 [ 11.324673][ T199] ? console_flush_one_record+0x710/0x710 [ 11.324675][ T199] ? rcu_is_watching+0x16/0xd0 [ 11.324676][ T199] ? lock_acquire+0xe0/0x160 [ 11.324680][ T199] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.324682][ T199] ? vprintk_emit+0x320/0x3e0 [ 11.324685][ T199] vprintk_emit+0x37c/0x3e0 [ 11.324688][ T199] ? wake_up_klogd_work_func+0x90/0x90 [ 11.324691][ T199] ? __lock_acquire+0x518/0xc20 [ 11.324695][ T199] _printk+0xc7/0x100 [ 11.324700][ T199] ? snapshot_read.cold+0x21/0x21 [ 11.324704][ T199] ? do_raw_spin_lock+0x131/0x280 [ 11.324708][ T199] ? __rwlock_init+0x150/0x150 [ 11.324712][ T199] ? do_raw_spin_lock+0x131/0x280 [ 11.324715][ T199] do_exit.cold+0x82/0x9c [ 11.324719][ T199] ? exit_notify+0x890/0x890 [ 11.324720][ T199] ? __lock_release.isra.0+0x69/0x1a0 [ 11.324723][ T199] ? rcu_is_watching+0x16/0xd0 [ 11.324730][ T199] do_group_exit+0xb8/0x370 [ 11.324735][ T199] __x64_sys_exit_group+0x3c/0x50 [ 11.324737][ T199] x64_sys_call+0x1567/0x1570 [ 11.324740][ T199] do_syscall_64+0xff/0x530 [ 11.324744][ T199] ? exc_page_fault+0xee/0x100 [ 11.324747][ T199] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.324749][ T199] RIP: 0033:0x7f1b919171b8 [ 11.324752][ T199] Code: Unable to access opcode bytes at 0x7f1b9191718e. [ 11.324753][ T199] RSP: 002b:00007ffd033cf428 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.324755][ T199] RAX: ffffffffffffffda RBX: 00007f1b91a47f88 RCX: 00007f1b919171b8 [ 11.324757][ T199] RDX: 00007f1b91661fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 11.324758][ T199] RBP: 00007ffd033cf480 R08: 0000000000000000 R09: 0000000000000050 [ 11.324759][ T199] R10: 00007ffd033cf240 R11: 0000000000000246 R12: 0000000000000001 [ 11.324759][ T199] R13: 0000000000000000 R14: 00007f1b91a46680 R15: 00007f1b91a47fa0 [ 11.324766][ T199]