[ 10.363438][ T194] ip (194) used greatest stack depth: 24288 bytes left [ 10.363458][ T194] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.363460][ T194] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 194, name: ip [ 10.363462][ T194] preempt_count: 2, expected: 0 [ 10.363462][ T194] RCU nest depth: 0, expected: 0 [ 10.363463][ T194] locks held by ip/194: 5, last CPU#1: [ 10.363465][ T194] #0: ffffffff99c167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.363477][ T194] #1: ffffffff99d7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.363483][ T194] #2: ffffffff99d7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.363487][ T194] #3: ffffffff99c9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.363495][ T194] #4: ffffffff99c9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.363500][ T194] irq event stamp: 34426 [ 10.363501][ T194] hardirqs last enabled at (34425): [] __down_trylock_console_sem+0x86/0xa0 [ 10.363504][ T194] hardirqs last disabled at (34426): [] console_emit_next_record+0x3d4/0x4c0 [ 10.363506][ T194] softirqs last enabled at (34198): [] handle_softirqs+0x67c/0x900 [ 10.363509][ T194] softirqs last disabled at (34193): [] __irq_exit_rcu+0x145/0x1c0 [ 10.363511][ T194] Preemption disabled at: [ 10.363512][ T194] [<0000000000000000>] 0x0 [ 10.363519][ T194] CPU: 1 UID: 0 PID: 194 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.363522][ T194] Tainted: [W]=WARN [ 10.363523][ T194] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.363525][ T194] Call Trace: [ 10.363527][ T194] [ 10.363529][ T194] dump_stack_lvl+0x6f/0xa0 [ 10.363535][ T194] __might_resched.cold+0x1fe/0x2c1 [ 10.363540][ T194] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.363544][ T194] ? __kmalloc_noprof+0xdb/0x760 [ 10.363548][ T194] __kmalloc_noprof+0x443/0x760 [ 10.363550][ T194] ? alloc_buf.isra.0+0x4b/0x260 [ 10.363557][ T194] ? do_raw_spin_unlock+0x59/0x250 [ 10.363560][ T194] alloc_buf.isra.0+0x4b/0x260 [ 10.363564][ T194] put_chars+0x1e1/0x2f0 [ 10.363567][ T194] ? __send_to_port+0x420/0x420 [ 10.363568][ T194] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.363572][ T194] ? validate_chain+0x38b/0xc20 [ 10.363577][ T194] hvc_console_print+0x292/0x780 [ 10.363585][ T194] ? hvc_write+0x3a0/0x3a0 [ 10.363588][ T194] ? rcu_is_watching+0x16/0xd0 [ 10.363590][ T194] ? lock_acquire+0x13c/0x160 [ 10.363594][ T194] console_emit_next_record+0x22f/0x4c0 [ 10.363598][ T194] ? devkmsg_read+0x4b0/0x4b0 [ 10.363600][ T194] ? console_flush_one_record+0x106/0x710 [ 10.363603][ T194] ? rcu_is_watching+0x16/0xd0 [ 10.363605][ T194] ? lock_acquire+0x13c/0x160 [ 10.363609][ T194] console_flush_one_record+0x46f/0x710 [ 10.363613][ T194] ? console_emit_next_record+0x4c0/0x4c0 [ 10.363615][ T194] ? __lock_acquire+0x518/0xc20 [ 10.363620][ T194] console_unlock+0xee/0x1f0 [ 10.363623][ T194] ? console_flush_one_record+0x710/0x710 [ 10.363625][ T194] ? rcu_is_watching+0x16/0xd0 [ 10.363627][ T194] ? lock_acquire+0xe0/0x160 [ 10.363632][ T194] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.363634][ T194] ? vprintk_emit+0x320/0x3e0 [ 10.363637][ T194] vprintk_emit+0x37c/0x3e0 [ 10.363640][ T194] ? wake_up_klogd_work_func+0x90/0x90 [ 10.363643][ T194] ? __lock_acquire+0x518/0xc20 [ 10.363647][ T194] _printk+0xc7/0x100 [ 10.363651][ T194] ? snapshot_read.cold+0x21/0x21 [ 10.363654][ T194] ? do_raw_spin_lock+0x131/0x280 [ 10.363657][ T194] ? __rwlock_init+0x150/0x150 [ 10.363661][ T194] ? do_raw_spin_lock+0x131/0x280 [ 10.363664][ T194] do_exit.cold+0x82/0x9c [ 10.363667][ T194] ? exit_notify+0x890/0x890 [ 10.363669][ T194] ? __lock_release.isra.0+0x69/0x1a0 [ 10.363672][ T194] ? rcu_is_watching+0x16/0xd0 [ 10.363675][ T194] do_group_exit+0xb8/0x370 [ 10.363678][ T194] __x64_sys_exit_group+0x3c/0x50 [ 10.363680][ T194] x64_sys_call+0x1567/0x1570 [ 10.363683][ T194] do_syscall_64+0xff/0x530 [ 10.363687][ T194] ? exc_page_fault+0xee/0x100 [ 10.363690][ T194] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.363692][ T194] RIP: 0033:0x7f79235701b8 [ 10.363695][ T194] Code: Unable to access opcode bytes at 0x7f792357018e. [ 10.363696][ T194] RSP: 002b:00007ffd676ada28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.363698][ T194] RAX: ffffffffffffffda RBX: 00007f79236a0f88 RCX: 00007f79235701b8 [ 10.363700][ T194] RDX: 00007f79232bafc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.363700][ T194] RBP: 00007ffd676ada80 R08: 0000000000000000 R09: 0000000000008010 [ 10.363701][ T194] R10: 00007ffd676ad840 R11: 0000000000000246 R12: 0000000000000001 [ 10.363702][ T194] R13: 0000000000000000 R14: 00007f792369f680 R15: 00007f79236a0fa0 [ 10.363709][ T194]