[ 9.046709][ T176] ip (176) used greatest stack depth: 23864 bytes left [ 9.046725][ T176] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.046727][ T176] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 176, name: ip [ 9.046729][ T176] preempt_count: 2, expected: 0 [ 9.046729][ T176] RCU nest depth: 0, expected: 0 [ 9.046730][ T176] locks held by ip/176: 5, last CPU#3: [ 9.046732][ T176] #0: ffffffff9f602f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 9.046744][ T176] #1: ffffffff9f76a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.046749][ T176] #2: ffffffff9f76a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.046752][ T176] #3: ffffffff9f689de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.046755][ T176] #4: ffffffff9f689ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.046758][ T176] irq event stamp: 22622 [ 9.046759][ T176] hardirqs last enabled at (22621): [] __down_trylock_console_sem+0x86/0xa0 [ 9.046762][ T176] hardirqs last disabled at (22622): [] console_emit_next_record+0x3d4/0x4c0 [ 9.046764][ T176] softirqs last enabled at (21040): [] netlink_release+0x17b/0xcf0 [ 9.046768][ T176] softirqs last disabled at (21038): [] netlink_release+0xd2/0xcf0 [ 9.046770][ T176] Preemption disabled at: [ 9.046771][ T176] [<0000000000000000>] 0x0 [ 9.046777][ T176] CPU: 3 UID: 0 PID: 176 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.046780][ T176] Tainted: [W]=WARN [ 9.046781][ T176] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.046782][ T176] Call Trace: [ 9.046784][ T176] [ 9.046785][ T176] dump_stack_lvl+0x6f/0xa0 [ 9.046791][ T176] __might_resched.cold+0x1fe/0x2c1 [ 9.046795][ T176] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.046799][ T176] ? __kmalloc_noprof+0xdb/0x760 [ 9.046803][ T176] __kmalloc_noprof+0x443/0x760 [ 9.046806][ T176] ? alloc_buf.isra.0+0x4b/0x260 [ 9.046811][ T176] ? do_raw_spin_unlock+0x59/0x250 [ 9.046814][ T176] alloc_buf.isra.0+0x4b/0x260 [ 9.046818][ T176] put_chars+0x1e1/0x2f0 [ 9.046821][ T176] ? __send_to_port+0x420/0x420 [ 9.046827][ T176] hvc_console_print+0x292/0x780 [ 9.046834][ T176] ? hvc_write+0x3a0/0x3a0 [ 9.046836][ T176] ? lock_acquire+0x13c/0x160 [ 9.046841][ T176] console_emit_next_record+0x22f/0x4c0 [ 9.046844][ T176] ? devkmsg_read+0x4b0/0x4b0 [ 9.046845][ T176] ? console_flush_one_record+0x106/0x710 [ 9.046848][ T176] ? rcu_is_watching+0x16/0xd0 [ 9.046851][ T176] ? lock_acquire+0x13c/0x160 [ 9.046855][ T176] console_flush_one_record+0x46f/0x710 [ 9.046858][ T176] ? console_emit_next_record+0x4c0/0x4c0 [ 9.046860][ T176] ? __lock_acquire+0x518/0xc20 [ 9.046865][ T176] console_unlock+0xee/0x1f0 [ 9.046867][ T176] ? console_flush_one_record+0x710/0x710 [ 9.046868][ T176] ? rcu_is_watching+0x16/0xd0 [ 9.046870][ T176] ? lock_acquire+0x60/0x160 [ 9.046874][ T176] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.046876][ T176] ? vprintk_emit+0x320/0x3e0 [ 9.046878][ T176] vprintk_emit+0x37c/0x3e0 [ 9.046881][ T176] ? wake_up_klogd_work_func+0x90/0x90 [ 9.046884][ T176] ? __lock_acquire+0x518/0xc20 [ 9.046888][ T176] _printk+0xc7/0x100 [ 9.046891][ T176] ? snapshot_read.cold+0x21/0x21 [ 9.046894][ T176] ? do_raw_spin_lock+0x131/0x280 [ 9.046897][ T176] ? __rwlock_init+0x150/0x150 [ 9.046901][ T176] ? do_raw_spin_lock+0x131/0x280 [ 9.046904][ T176] do_exit.cold+0x82/0x9c [ 9.046907][ T176] ? exit_notify+0x890/0x890 [ 9.046909][ T176] ? __lock_release.isra.0+0x69/0x1a0 [ 9.046911][ T176] ? rcu_is_watching+0x16/0xd0 [ 9.046915][ T176] do_group_exit+0xb8/0x370 [ 9.046918][ T176] __x64_sys_exit_group+0x3c/0x50 [ 9.046920][ T176] x64_sys_call+0x1567/0x1570 [ 9.046923][ T176] do_syscall_64+0x10e/0x570 [ 9.046926][ T176] ? exc_page_fault+0xee/0x100 [ 9.046929][ T176] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.046931][ T176] RIP: 0033:0x7f552702d1b8 [ 9.046933][ T176] Code: Unable to access opcode bytes at 0x7f552702d18e. [ 9.046934][ T176] RSP: 002b:00007fffa9dc8f98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.046937][ T176] RAX: ffffffffffffffda RBX: 00007f552715df88 RCX: 00007f552702d1b8 [ 9.046938][ T176] RDX: 00007f5526d77fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.046939][ T176] RBP: 00007fffa9dc8ff0 R08: 0000000000000000 R09: 0000000000000050 [ 9.046940][ T176] R10: 00007fffa9dc8db0 R11: 0000000000000246 R12: 0000000000000001 [ 9.046940][ T176] R13: 0000000000000000 R14: 00007f552715c680 R15: 00007f552715dfa0 [ 9.046947][ T176]