[ 9.293536][ T193] ip (193) used greatest stack depth: 24104 bytes left [ 9.293551][ T193] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.293553][ T193] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 193, name: ip [ 9.293554][ T193] preempt_count: 2, expected: 0 [ 9.293555][ T193] RCU nest depth: 0, expected: 0 [ 9.293556][ T193] locks held by ip/193: 5, last CPU#0: [ 9.293558][ T193] #0: ffffffffb7e167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.293568][ T193] #1: ffffffffb7f7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.293573][ T193] #2: ffffffffb7f7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.293577][ T193] #3: ffffffffb7e9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.293581][ T193] #4: ffffffffb7e9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.293585][ T193] irq event stamp: 28368 [ 9.293585][ T193] hardirqs last enabled at (28367): [] __down_trylock_console_sem+0x86/0xa0 [ 9.293588][ T193] hardirqs last disabled at (28368): [] console_emit_next_record+0x3d4/0x4c0 [ 9.293590][ T193] softirqs last enabled at (28142): [] handle_softirqs+0x67c/0x900 [ 9.293593][ T193] softirqs last disabled at (28137): [] __irq_exit_rcu+0x145/0x1c0 [ 9.293595][ T193] Preemption disabled at: [ 9.293595][ T193] [<0000000000000000>] 0x0 [ 9.293602][ T193] CPU: 0 UID: 0 PID: 193 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.293605][ T193] Tainted: [W]=WARN [ 9.293606][ T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.293607][ T193] Call Trace: [ 9.293609][ T193] [ 9.293610][ T193] dump_stack_lvl+0x6f/0xa0 [ 9.293617][ T193] __might_resched.cold+0x1fe/0x2c1 [ 9.293621][ T193] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.293626][ T193] ? __kmalloc_noprof+0xdb/0x760 [ 9.293630][ T193] __kmalloc_noprof+0x443/0x760 [ 9.293632][ T193] ? alloc_buf.isra.0+0x4b/0x260 [ 9.293638][ T193] ? do_raw_spin_unlock+0x59/0x250 [ 9.293641][ T193] alloc_buf.isra.0+0x4b/0x260 [ 9.293645][ T193] put_chars+0x1e1/0x2f0 [ 9.293647][ T193] ? __send_to_port+0x420/0x420 [ 9.293648][ T193] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.293652][ T193] ? validate_chain+0x38b/0xc20 [ 9.293657][ T193] hvc_console_print+0x292/0x780 [ 9.293665][ T193] ? hvc_write+0x3a0/0x3a0 [ 9.293668][ T193] ? rcu_is_watching+0x16/0xd0 [ 9.293670][ T193] ? lock_acquire+0x13c/0x160 [ 9.293674][ T193] console_emit_next_record+0x22f/0x4c0 [ 9.293678][ T193] ? devkmsg_read+0x4b0/0x4b0 [ 9.293680][ T193] ? console_flush_one_record+0x106/0x710 [ 9.293683][ T193] ? rcu_is_watching+0x16/0xd0 [ 9.293685][ T193] ? lock_acquire+0x13c/0x160 [ 9.293689][ T193] console_flush_one_record+0x46f/0x710 [ 9.293693][ T193] ? console_emit_next_record+0x4c0/0x4c0 [ 9.293695][ T193] ? __lock_acquire+0x518/0xc20 [ 9.293700][ T193] console_unlock+0xee/0x1f0 [ 9.293703][ T193] ? console_flush_one_record+0x710/0x710 [ 9.293705][ T193] ? rcu_is_watching+0x16/0xd0 [ 9.293706][ T193] ? lock_acquire+0xe0/0x160 [ 9.293710][ T193] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.293712][ T193] ? vprintk_emit+0x320/0x3e0 [ 9.293714][ T193] vprintk_emit+0x37c/0x3e0 [ 9.293717][ T193] ? wake_up_klogd_work_func+0x90/0x90 [ 9.293720][ T193] ? __lock_acquire+0x518/0xc20 [ 9.293724][ T193] _printk+0xc7/0x100 [ 9.293728][ T193] ? snapshot_read.cold+0x21/0x21 [ 9.293731][ T193] ? do_raw_spin_lock+0x131/0x280 [ 9.293733][ T193] ? __rwlock_init+0x150/0x150 [ 9.293737][ T193] ? do_raw_spin_lock+0x131/0x280 [ 9.293740][ T193] do_exit.cold+0x82/0x9c [ 9.293743][ T193] ? exit_notify+0x890/0x890 [ 9.293745][ T193] ? __lock_release.isra.0+0x69/0x1a0 [ 9.293747][ T193] ? rcu_is_watching+0x16/0xd0 [ 9.293751][ T193] do_group_exit+0xb8/0x370 [ 9.293754][ T193] __x64_sys_exit_group+0x3c/0x50 [ 9.293756][ T193] x64_sys_call+0x1567/0x1570 [ 9.293758][ T193] do_syscall_64+0xff/0x530 [ 9.293762][ T193] ? exc_page_fault+0xee/0x100 [ 9.293765][ T193] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.293767][ T193] RIP: 0033:0x7f4ea5d331b8 [ 9.293769][ T193] Code: Unable to access opcode bytes at 0x7f4ea5d3318e. [ 9.293770][ T193] RSP: 002b:00007ffe8114e1c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.293772][ T193] RAX: ffffffffffffffda RBX: 00007f4ea5e63f88 RCX: 00007f4ea5d331b8 [ 9.293773][ T193] RDX: 00007f4ea5a7dfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.293774][ T193] RBP: 00007ffe8114e220 R08: 0000000000000000 R09: 0000000000000050 [ 9.293775][ T193] R10: 00007ffe8114dfe0 R11: 0000000000000246 R12: 0000000000000001 [ 9.293776][ T193] R13: 0000000000000000 R14: 00007f4ea5e62680 R15: 00007f4ea5e63fa0 [ 9.293782][ T193]