[ 11.527280][ T184] ip (184) used greatest stack depth: 23568 bytes left [ 11.527299][ T184] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.527301][ T184] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 184, name: ip [ 11.527303][ T184] preempt_count: 2, expected: 0 [ 11.527304][ T184] RCU nest depth: 0, expected: 0 [ 11.527305][ T184] locks held by ip/184: 5, last CPU#2: [ 11.527307][ T184] #0: ffffffff88a02f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 11.527324][ T184] #1: ffffffff88b6a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.527329][ T184] #2: ffffffff88b6a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.527333][ T184] #3: ffffffff88a89de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.527336][ T184] #4: ffffffff88a89ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.527340][ T184] irq event stamp: 21072 [ 11.527341][ T184] hardirqs last enabled at (21071): [] __down_trylock_console_sem+0x86/0xa0 [ 11.527345][ T184] hardirqs last disabled at (21072): [] console_emit_next_record+0x3d4/0x4c0 [ 11.527346][ T184] softirqs last enabled at (19506): [] netlink_release+0x17b/0xcf0 [ 11.527350][ T184] softirqs last disabled at (19504): [] netlink_release+0xd2/0xcf0 [ 11.527353][ T184] Preemption disabled at: [ 11.527353][ T184] [<0000000000000000>] 0x0 [ 11.527361][ T184] CPU: 2 UID: 0 PID: 184 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.527364][ T184] Tainted: [W]=WARN [ 11.527365][ T184] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.527367][ T184] Call Trace: [ 11.527368][ T184] [ 11.527370][ T184] dump_stack_lvl+0x6f/0xa0 [ 11.527375][ T184] __might_resched.cold+0x1fe/0x2c1 [ 11.527380][ T184] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.527384][ T184] ? __kmalloc_noprof+0xdb/0x760 [ 11.527389][ T184] __kmalloc_noprof+0x443/0x760 [ 11.527391][ T184] ? alloc_buf.isra.0+0x4b/0x260 [ 11.527397][ T184] ? do_raw_spin_unlock+0x59/0x250 [ 11.527401][ T184] alloc_buf.isra.0+0x4b/0x260 [ 11.527404][ T184] put_chars+0x1e1/0x2f0 [ 11.527407][ T184] ? __send_to_port+0x420/0x420 [ 11.527414][ T184] hvc_console_print+0x292/0x780 [ 11.527420][ T184] ? hvc_write+0x3a0/0x3a0 [ 11.527423][ T184] ? lock_acquire+0x13c/0x160 [ 11.527428][ T184] console_emit_next_record+0x22f/0x4c0 [ 11.527431][ T184] ? devkmsg_read+0x4b0/0x4b0 [ 11.527433][ T184] ? console_flush_one_record+0x106/0x710 [ 11.527435][ T184] ? rcu_is_watching+0x16/0xd0 [ 11.527439][ T184] ? lock_acquire+0x13c/0x160 [ 11.527443][ T184] console_flush_one_record+0x46f/0x710 [ 11.527447][ T184] ? console_emit_next_record+0x4c0/0x4c0 [ 11.527448][ T184] ? __lock_acquire+0x518/0xc20 [ 11.527453][ T184] console_unlock+0xee/0x1f0 [ 11.527456][ T184] ? console_flush_one_record+0x710/0x710 [ 11.527457][ T184] ? rcu_is_watching+0x16/0xd0 [ 11.527459][ T184] ? lock_acquire+0x60/0x160 [ 11.527463][ T184] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.527465][ T184] ? vprintk_emit+0x320/0x3e0 [ 11.527468][ T184] vprintk_emit+0x37c/0x3e0 [ 11.527471][ T184] ? wake_up_klogd_work_func+0x90/0x90 [ 11.527474][ T184] ? __lock_acquire+0x518/0xc20 [ 11.527478][ T184] _printk+0xc7/0x100 [ 11.527482][ T184] ? snapshot_read.cold+0x21/0x21 [ 11.527484][ T184] ? do_raw_spin_lock+0x131/0x280 [ 11.527487][ T184] ? __rwlock_init+0x150/0x150 [ 11.527491][ T184] ? do_raw_spin_lock+0x131/0x280 [ 11.527494][ T184] do_exit.cold+0x82/0x9c [ 11.527498][ T184] ? exit_notify+0x890/0x890 [ 11.527500][ T184] ? __lock_release.isra.0+0x69/0x1a0 [ 11.527503][ T184] ? rcu_is_watching+0x16/0xd0 [ 11.527506][ T184] do_group_exit+0xb8/0x370 [ 11.527509][ T184] __x64_sys_exit_group+0x3c/0x50 [ 11.527511][ T184] x64_sys_call+0x1567/0x1570 [ 11.527514][ T184] do_syscall_64+0x10e/0x570 [ 11.527517][ T184] ? exc_page_fault+0xee/0x100 [ 11.527521][ T184] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.527523][ T184] RIP: 0033:0x7f5917aff1b8 [ 11.527525][ T184] Code: Unable to access opcode bytes at 0x7f5917aff18e. [ 11.527526][ T184] RSP: 002b:00007ffd0c270788 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.527528][ T184] RAX: ffffffffffffffda RBX: 00007f5917c2ff88 RCX: 00007f5917aff1b8 [ 11.527530][ T184] RDX: 00007f5917849fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 11.527530][ T184] RBP: 00007ffd0c2707e0 R08: 0000000000000000 R09: 0000000000000050 [ 11.527531][ T184] R10: 00007ffd0c2705a0 R11: 0000000000000246 R12: 0000000000000001 [ 11.527532][ T184] R13: 0000000000000000 R14: 00007f5917c2e680 R15: 00007f5917c2ffa0 [ 11.527539][ T184]