[ 9.436479][ T179] ip (179) used greatest stack depth: 24176 bytes left [ 9.436498][ T179] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.436500][ T179] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 179, name: ip [ 9.436501][ T179] preempt_count: 2, expected: 0 [ 9.436502][ T179] RCU nest depth: 0, expected: 0 [ 9.436503][ T179] locks held by ip/179: 5, last CPU#3: [ 9.436505][ T179] #0: ffffffffb5002f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 9.436517][ T179] #1: ffffffffb516a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.436522][ T179] #2: ffffffffb516a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.436526][ T179] #3: ffffffffb5089de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.436529][ T179] #4: ffffffffb5089ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.436532][ T179] irq event stamp: 27888 [ 9.436533][ T179] hardirqs last enabled at (27887): [] __down_trylock_console_sem+0x86/0xa0 [ 9.436536][ T179] hardirqs last disabled at (27888): [] console_emit_next_record+0x3d4/0x4c0 [ 9.436538][ T179] softirqs last enabled at (26334): [] netlink_release+0x17b/0xcf0 [ 9.436542][ T179] softirqs last disabled at (26332): [] netlink_release+0xd2/0xcf0 [ 9.436544][ T179] Preemption disabled at: [ 9.436545][ T179] [<0000000000000000>] 0x0 [ 9.436552][ T179] CPU: 3 UID: 0 PID: 179 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.436556][ T179] Tainted: [W]=WARN [ 9.436557][ T179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.436558][ T179] Call Trace: [ 9.436560][ T179] [ 9.436561][ T179] dump_stack_lvl+0x6f/0xa0 [ 9.436566][ T179] __might_resched.cold+0x1fe/0x2c1 [ 9.436571][ T179] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.436574][ T179] ? __kmalloc_noprof+0xdb/0x760 [ 9.436579][ T179] __kmalloc_noprof+0x443/0x760 [ 9.436581][ T179] ? alloc_buf.isra.0+0x4b/0x260 [ 9.436588][ T179] ? do_raw_spin_unlock+0x59/0x250 [ 9.436590][ T179] alloc_buf.isra.0+0x4b/0x260 [ 9.436594][ T179] put_chars+0x1e1/0x2f0 [ 9.436597][ T179] ? __send_to_port+0x420/0x420 [ 9.436603][ T179] hvc_console_print+0x292/0x780 [ 9.436610][ T179] ? hvc_write+0x3a0/0x3a0 [ 9.436612][ T179] ? lock_acquire+0x13c/0x160 [ 9.436617][ T179] console_emit_next_record+0x22f/0x4c0 [ 9.436620][ T179] ? devkmsg_read+0x4b0/0x4b0 [ 9.436621][ T179] ? console_flush_one_record+0x106/0x710 [ 9.436624][ T179] ? rcu_is_watching+0x16/0xd0 [ 9.436627][ T179] ? lock_acquire+0x13c/0x160 [ 9.436631][ T179] console_flush_one_record+0x46f/0x710 [ 9.436634][ T179] ? console_emit_next_record+0x4c0/0x4c0 [ 9.436636][ T179] ? __lock_acquire+0x518/0xc20 [ 9.436641][ T179] console_unlock+0xee/0x1f0 [ 9.436643][ T179] ? console_flush_one_record+0x710/0x710 [ 9.436644][ T179] ? rcu_is_watching+0x16/0xd0 [ 9.436646][ T179] ? lock_acquire+0x60/0x160 [ 9.436650][ T179] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.436651][ T179] ? vprintk_emit+0x320/0x3e0 [ 9.436654][ T179] vprintk_emit+0x37c/0x3e0 [ 9.436657][ T179] ? wake_up_klogd_work_func+0x90/0x90 [ 9.436660][ T179] ? __lock_acquire+0x518/0xc20 [ 9.436664][ T179] _printk+0xc7/0x100 [ 9.436667][ T179] ? snapshot_read.cold+0x21/0x21 [ 9.436670][ T179] ? do_raw_spin_lock+0x131/0x280 [ 9.436676][ T179] ? __rwlock_init+0x150/0x150 [ 9.436680][ T179] ? do_raw_spin_lock+0x131/0x280 [ 9.436683][ T179] do_exit.cold+0x82/0x9c [ 9.436687][ T179] ? exit_notify+0x890/0x890 [ 9.436688][ T179] ? __lock_release.isra.0+0x69/0x1a0 [ 9.436691][ T179] ? rcu_is_watching+0x16/0xd0 [ 9.436694][ T179] do_group_exit+0xb8/0x370 [ 9.436697][ T179] __x64_sys_exit_group+0x3c/0x50 [ 9.436699][ T179] x64_sys_call+0x1567/0x1570 [ 9.436702][ T179] do_syscall_64+0x10e/0x570 [ 9.436705][ T179] ? exc_page_fault+0xee/0x100 [ 9.436708][ T179] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.436710][ T179] RIP: 0033:0x7f5f3b6a21b8 [ 9.436713][ T179] Code: Unable to access opcode bytes at 0x7f5f3b6a218e. [ 9.436714][ T179] RSP: 002b:00007ffc72f9f148 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.436716][ T179] RAX: ffffffffffffffda RBX: 00007f5f3b7d2f88 RCX: 00007f5f3b6a21b8 [ 9.436718][ T179] RDX: 00007f5f3b3ecfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.436718][ T179] RBP: 00007ffc72f9f1a0 R08: 0000000000000000 R09: 0000000000000050 [ 9.436719][ T179] R10: 00007ffc72f9ef60 R11: 0000000000000246 R12: 0000000000000001 [ 9.436720][ T179] R13: 0000000000000000 R14: 00007f5f3b7d1680 R15: 00007f5f3b7d2fa0 [ 9.436727][ T179]