[ 10.465460][ T185] ip (185) used greatest stack depth: 24256 bytes left [ 10.465476][ T185] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.465478][ T185] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 185, name: ip [ 10.465479][ T185] preempt_count: 2, expected: 0 [ 10.465480][ T185] RCU nest depth: 0, expected: 0 [ 10.465481][ T185] locks held by ip/185: 5, last CPU#2: [ 10.465483][ T185] #0: ffffffffab802f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 10.465495][ T185] #1: ffffffffab96a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.465500][ T185] #2: ffffffffab96a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.465503][ T185] #3: ffffffffab889de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.465506][ T185] #4: ffffffffab889ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.465509][ T185] irq event stamp: 39896 [ 10.465510][ T185] hardirqs last enabled at (39895): [] __down_trylock_console_sem+0x86/0xa0 [ 10.465513][ T185] hardirqs last disabled at (39896): [] console_emit_next_record+0x3d4/0x4c0 [ 10.465515][ T185] softirqs last enabled at (38588): [] netlink_release+0x17b/0xcf0 [ 10.465519][ T185] softirqs last disabled at (38586): [] netlink_release+0xd2/0xcf0 [ 10.465521][ T185] Preemption disabled at: [ 10.465521][ T185] [<0000000000000000>] 0x0 [ 10.465527][ T185] CPU: 2 UID: 0 PID: 185 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.465530][ T185] Tainted: [W]=WARN [ 10.465531][ T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.465533][ T185] Call Trace: [ 10.465534][ T185] [ 10.465536][ T185] dump_stack_lvl+0x6f/0xa0 [ 10.465541][ T185] __might_resched.cold+0x1fe/0x2c1 [ 10.465546][ T185] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.465549][ T185] ? __kmalloc_noprof+0xdb/0x760 [ 10.465554][ T185] __kmalloc_noprof+0x443/0x760 [ 10.465556][ T185] ? alloc_buf.isra.0+0x4b/0x260 [ 10.465562][ T185] ? do_raw_spin_unlock+0x59/0x250 [ 10.465565][ T185] alloc_buf.isra.0+0x4b/0x260 [ 10.465568][ T185] put_chars+0x1e1/0x2f0 [ 10.465571][ T185] ? __send_to_port+0x420/0x420 [ 10.465578][ T185] hvc_console_print+0x292/0x780 [ 10.465585][ T185] ? hvc_write+0x3a0/0x3a0 [ 10.465587][ T185] ? lock_acquire+0x13c/0x160 [ 10.465592][ T185] console_emit_next_record+0x22f/0x4c0 [ 10.465595][ T185] ? devkmsg_read+0x4b0/0x4b0 [ 10.465597][ T185] ? console_flush_one_record+0x106/0x710 [ 10.465599][ T185] ? rcu_is_watching+0x16/0xd0 [ 10.465603][ T185] ? lock_acquire+0x13c/0x160 [ 10.465607][ T185] console_flush_one_record+0x46f/0x710 [ 10.465611][ T185] ? console_emit_next_record+0x4c0/0x4c0 [ 10.465612][ T185] ? __lock_acquire+0x518/0xc20 [ 10.465617][ T185] console_unlock+0xee/0x1f0 [ 10.465620][ T185] ? console_flush_one_record+0x710/0x710 [ 10.465621][ T185] ? rcu_is_watching+0x16/0xd0 [ 10.465623][ T185] ? lock_acquire+0x60/0x160 [ 10.465627][ T185] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.465628][ T185] ? vprintk_emit+0x320/0x3e0 [ 10.465631][ T185] vprintk_emit+0x37c/0x3e0 [ 10.465634][ T185] ? wake_up_klogd_work_func+0x90/0x90 [ 10.465637][ T185] ? __lock_acquire+0x518/0xc20 [ 10.465641][ T185] _printk+0xc7/0x100 [ 10.465645][ T185] ? snapshot_read.cold+0x21/0x21 [ 10.465647][ T185] ? do_raw_spin_lock+0x131/0x280 [ 10.465650][ T185] ? __rwlock_init+0x150/0x150 [ 10.465654][ T185] ? do_raw_spin_lock+0x131/0x280 [ 10.465657][ T185] do_exit.cold+0x82/0x9c [ 10.465661][ T185] ? exit_notify+0x890/0x890 [ 10.465662][ T185] ? __lock_release.isra.0+0x69/0x1a0 [ 10.465665][ T185] ? rcu_is_watching+0x16/0xd0 [ 10.465669][ T185] do_group_exit+0xb8/0x370 [ 10.465672][ T185] __x64_sys_exit_group+0x3c/0x50 [ 10.465674][ T185] x64_sys_call+0x1567/0x1570 [ 10.465676][ T185] do_syscall_64+0x10e/0x570 [ 10.465679][ T185] ? exc_page_fault+0xee/0x100 [ 10.465683][ T185] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.465685][ T185] RIP: 0033:0x7f55776771b8 [ 10.465687][ T185] Code: Unable to access opcode bytes at 0x7f557767718e. [ 10.465688][ T185] RSP: 002b:00007ffcfd5def28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.465690][ T185] RAX: ffffffffffffffda RBX: 00007f55777a7f88 RCX: 00007f55776771b8 [ 10.465691][ T185] RDX: 00007f55773c1fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.465692][ T185] RBP: 00007ffcfd5def80 R08: 0000000000000000 R09: 0000000000000000 [ 10.465693][ T185] R10: 00007ffcfd5ded40 R11: 0000000000000246 R12: 0000000000000001 [ 10.465694][ T185] R13: 0000000000000000 R14: 00007f55777a6680 R15: 00007f55777a7fa0 [ 10.465701][ T185]