[ 10.999419][ T181] ip (181) used greatest stack depth: 24000 bytes left [ 10.999440][ T181] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.999443][ T181] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 181, name: ip [ 10.999444][ T181] preempt_count: 2, expected: 0 [ 10.999445][ T181] RCU nest depth: 0, expected: 0 [ 10.999446][ T181] locks held by ip/181: 5, last CPU#2: [ 10.999449][ T181] #0: ffffffff90c02f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 10.999461][ T181] #1: ffffffff90d6a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.999466][ T181] #2: ffffffff90d6a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.999469][ T181] #3: ffffffff90c89de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.999473][ T181] #4: ffffffff90c89ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.999476][ T181] irq event stamp: 34026 [ 10.999477][ T181] hardirqs last enabled at (34025): [] __down_trylock_console_sem+0x86/0xa0 [ 10.999481][ T181] hardirqs last disabled at (34026): [] console_emit_next_record+0x3d4/0x4c0 [ 10.999482][ T181] softirqs last enabled at (33744): [] handle_softirqs+0x67c/0x900 [ 10.999485][ T181] softirqs last disabled at (33739): [] __irq_exit_rcu+0x145/0x1c0 [ 10.999488][ T181] Preemption disabled at: [ 10.999488][ T181] [<0000000000000000>] 0x0 [ 10.999495][ T181] CPU: 2 UID: 0 PID: 181 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.999499][ T181] Tainted: [W]=WARN [ 10.999500][ T181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.999502][ T181] Call Trace: [ 10.999503][ T181] [ 10.999505][ T181] dump_stack_lvl+0x6f/0xa0 [ 10.999511][ T181] __might_resched.cold+0x1fe/0x2c1 [ 10.999515][ T181] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.999519][ T181] ? __kmalloc_noprof+0xdb/0x760 [ 10.999524][ T181] __kmalloc_noprof+0x443/0x760 [ 10.999526][ T181] ? alloc_buf.isra.0+0x4b/0x260 [ 10.999533][ T181] ? do_raw_spin_unlock+0x59/0x250 [ 10.999536][ T181] alloc_buf.isra.0+0x4b/0x260 [ 10.999540][ T181] put_chars+0x1e1/0x2f0 [ 10.999543][ T181] ? __send_to_port+0x420/0x420 [ 10.999549][ T181] hvc_console_print+0x292/0x780 [ 10.999556][ T181] ? hvc_write+0x3a0/0x3a0 [ 10.999559][ T181] ? lock_acquire+0x13c/0x160 [ 10.999564][ T181] console_emit_next_record+0x22f/0x4c0 [ 10.999567][ T181] ? devkmsg_read+0x4b0/0x4b0 [ 10.999569][ T181] ? console_flush_one_record+0x106/0x710 [ 10.999571][ T181] ? rcu_is_watching+0x16/0xd0 [ 10.999575][ T181] ? lock_acquire+0x13c/0x160 [ 10.999579][ T181] console_flush_one_record+0x46f/0x710 [ 10.999583][ T181] ? console_emit_next_record+0x4c0/0x4c0 [ 10.999584][ T181] ? __lock_acquire+0x518/0xc20 [ 10.999590][ T181] console_unlock+0xee/0x1f0 [ 10.999592][ T181] ? console_flush_one_record+0x710/0x710 [ 10.999593][ T181] ? rcu_is_watching+0x16/0xd0 [ 10.999595][ T181] ? lock_acquire+0x60/0x160 [ 10.999599][ T181] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.999601][ T181] ? vprintk_emit+0x320/0x3e0 [ 10.999604][ T181] vprintk_emit+0x37c/0x3e0 [ 10.999607][ T181] ? wake_up_klogd_work_func+0x90/0x90 [ 10.999610][ T181] ? __lock_acquire+0x518/0xc20 [ 10.999614][ T181] _printk+0xc7/0x100 [ 10.999618][ T181] ? snapshot_read.cold+0x21/0x21 [ 10.999621][ T181] ? do_raw_spin_lock+0x131/0x280 [ 10.999624][ T181] ? __rwlock_init+0x150/0x150 [ 10.999628][ T181] ? do_raw_spin_lock+0x131/0x280 [ 10.999631][ T181] do_exit.cold+0x82/0x9c [ 10.999635][ T181] ? exit_notify+0x890/0x890 [ 10.999636][ T181] ? __lock_release.isra.0+0x69/0x1a0 [ 10.999639][ T181] ? rcu_is_watching+0x16/0xd0 [ 10.999643][ T181] do_group_exit+0xb8/0x370 [ 10.999646][ T181] __x64_sys_exit_group+0x3c/0x50 [ 10.999649][ T181] x64_sys_call+0x1567/0x1570 [ 10.999651][ T181] do_syscall_64+0x10e/0x570 [ 10.999655][ T181] ? exc_page_fault+0xee/0x100 [ 10.999659][ T181] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.999661][ T181] RIP: 0033:0x7f556a8231b8 [ 10.999663][ T181] Code: Unable to access opcode bytes at 0x7f556a82318e. [ 10.999664][ T181] RSP: 002b:00007ffebc4cafd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.999666][ T181] RAX: ffffffffffffffda RBX: 00007f556a953f88 RCX: 00007f556a8231b8 [ 10.999668][ T181] RDX: 00007f556a56dfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.999669][ T181] RBP: 00007ffebc4cb030 R08: 0000000000000000 R09: 0000000000000050 [ 10.999670][ T181] R10: 00007ffebc4cadf0 R11: 0000000000000246 R12: 0000000000000001 [ 10.999670][ T181] R13: 0000000000000000 R14: 00007f556a952680 R15: 00007f556a953fa0 [ 10.999677][ T181] [ 11.184038][ T186] ip (186) used greatest stack depth: 23648 bytes left