[ 9.066950][ T195] ip (195) used greatest stack depth: 24256 bytes left [ 9.066965][ T195] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.066966][ T195] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 195, name: ip [ 9.066968][ T195] preempt_count: 2, expected: 0 [ 9.066969][ T195] RCU nest depth: 0, expected: 0 [ 9.066970][ T195] locks held by ip/195: 5, last CPU#3: [ 9.066972][ T195] #0: ffffffff994167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.066984][ T195] #1: ffffffff9957ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.066988][ T195] #2: ffffffff9957de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.066992][ T195] #3: ffffffff9949d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.066996][ T195] #4: ffffffff9949d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.067000][ T195] irq event stamp: 36336 [ 9.067001][ T195] hardirqs last enabled at (36335): [] __down_trylock_console_sem+0x86/0xa0 [ 9.067004][ T195] hardirqs last disabled at (36336): [] console_emit_next_record+0x3d4/0x4c0 [ 9.067006][ T195] softirqs last enabled at (35832): [] handle_softirqs+0x67c/0x900 [ 9.067008][ T195] softirqs last disabled at (34557): [] __irq_exit_rcu+0x145/0x1c0 [ 9.067010][ T195] Preemption disabled at: [ 9.067011][ T195] [<0000000000000000>] 0x0 [ 9.067017][ T195] CPU: 3 UID: 0 PID: 195 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.067021][ T195] Tainted: [W]=WARN [ 9.067022][ T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.067023][ T195] Call Trace: [ 9.067025][ T195] [ 9.067026][ T195] dump_stack_lvl+0x6f/0xa0 [ 9.067033][ T195] __might_resched.cold+0x1fe/0x2c1 [ 9.067037][ T195] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.067041][ T195] ? __kmalloc_noprof+0xdb/0x760 [ 9.067046][ T195] __kmalloc_noprof+0x443/0x760 [ 9.067047][ T195] ? alloc_buf.isra.0+0x4b/0x260 [ 9.067054][ T195] ? do_raw_spin_unlock+0x59/0x250 [ 9.067057][ T195] alloc_buf.isra.0+0x4b/0x260 [ 9.067061][ T195] put_chars+0x1e1/0x2f0 [ 9.067064][ T195] ? __send_to_port+0x420/0x420 [ 9.067065][ T195] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.067069][ T195] ? validate_chain+0x38b/0xc20 [ 9.067074][ T195] hvc_console_print+0x292/0x780 [ 9.067082][ T195] ? hvc_write+0x3a0/0x3a0 [ 9.067084][ T195] ? rcu_is_watching+0x16/0xd0 [ 9.067086][ T195] ? lock_acquire+0x13c/0x160 [ 9.067090][ T195] console_emit_next_record+0x22f/0x4c0 [ 9.067094][ T195] ? devkmsg_read+0x4b0/0x4b0 [ 9.067096][ T195] ? console_flush_one_record+0x106/0x710 [ 9.067099][ T195] ? rcu_is_watching+0x16/0xd0 [ 9.067101][ T195] ? lock_acquire+0x13c/0x160 [ 9.067105][ T195] console_flush_one_record+0x46f/0x710 [ 9.067109][ T195] ? console_emit_next_record+0x4c0/0x4c0 [ 9.067111][ T195] ? __lock_acquire+0x518/0xc20 [ 9.067116][ T195] console_unlock+0xee/0x1f0 [ 9.067119][ T195] ? console_flush_one_record+0x710/0x710 [ 9.067120][ T195] ? rcu_is_watching+0x16/0xd0 [ 9.067122][ T195] ? lock_acquire+0xe0/0x160 [ 9.067126][ T195] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.067127][ T195] ? vprintk_emit+0x320/0x3e0 [ 9.067130][ T195] vprintk_emit+0x37c/0x3e0 [ 9.067133][ T195] ? wake_up_klogd_work_func+0x90/0x90 [ 9.067136][ T195] ? __lock_acquire+0x518/0xc20 [ 9.067140][ T195] _printk+0xc7/0x100 [ 9.067143][ T195] ? snapshot_read.cold+0x21/0x21 [ 9.067146][ T195] ? do_raw_spin_lock+0x131/0x280 [ 9.067149][ T195] ? __rwlock_init+0x150/0x150 [ 9.067153][ T195] ? do_raw_spin_lock+0x131/0x280 [ 9.067155][ T195] do_exit.cold+0x82/0x9c [ 9.067159][ T195] ? exit_notify+0x890/0x890 [ 9.067160][ T195] ? __lock_release.isra.0+0x69/0x1a0 [ 9.067163][ T195] ? rcu_is_watching+0x16/0xd0 [ 9.067166][ T195] do_group_exit+0xb8/0x370 [ 9.067169][ T195] __x64_sys_exit_group+0x3c/0x50 [ 9.067171][ T195] x64_sys_call+0x1567/0x1570 [ 9.067173][ T195] do_syscall_64+0xff/0x530 [ 9.067177][ T195] ? exc_page_fault+0xee/0x100 [ 9.067180][ T195] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.067182][ T195] RIP: 0033:0x7fee55d571b8 [ 9.067185][ T195] Code: Unable to access opcode bytes at 0x7fee55d5718e. [ 9.067186][ T195] RSP: 002b:00007ffd87115448 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.067188][ T195] RAX: ffffffffffffffda RBX: 00007fee55e87f88 RCX: 00007fee55d571b8 [ 9.067189][ T195] RDX: 00007fee55aa1fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.067190][ T195] RBP: 00007ffd871154a0 R08: 0000000000000000 R09: 0000000000008010 [ 9.067191][ T195] R10: 00007ffd87115260 R11: 0000000000000246 R12: 0000000000000001 [ 9.067192][ T195] R13: 0000000000000000 R14: 00007fee55e86680 R15: 00007fee55e87fa0 [ 9.067198][ T195]