[ 10.305405][ T192] ip (192) used greatest stack depth: 24088 bytes left [ 10.305421][ T192] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.305422][ T192] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 192, name: ip [ 10.305424][ T192] preempt_count: 2, expected: 0 [ 10.305425][ T192] RCU nest depth: 0, expected: 0 [ 10.305426][ T192] locks held by ip/192: 5, last CPU#0: [ 10.305427][ T192] #0: ffffffffa82167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.305439][ T192] #1: ffffffffa837ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.305443][ T192] #2: ffffffffa837de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.305450][ T192] #3: ffffffffa829d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.305453][ T192] #4: ffffffffa829d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.305457][ T192] irq event stamp: 36204 [ 10.305458][ T192] hardirqs last enabled at (36203): [] __down_trylock_console_sem+0x86/0xa0 [ 10.305461][ T192] hardirqs last disabled at (36204): [] console_emit_next_record+0x3d4/0x4c0 [ 10.305463][ T192] softirqs last enabled at (35302): [] handle_softirqs+0x67c/0x900 [ 10.305466][ T192] softirqs last disabled at (35293): [] __irq_exit_rcu+0x145/0x1c0 [ 10.305468][ T192] Preemption disabled at: [ 10.305469][ T192] [<0000000000000000>] 0x0 [ 10.305476][ T192] CPU: 0 UID: 0 PID: 192 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.305479][ T192] Tainted: [W]=WARN [ 10.305480][ T192] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.305482][ T192] Call Trace: [ 10.305483][ T192] [ 10.305485][ T192] dump_stack_lvl+0x6f/0xa0 [ 10.305491][ T192] __might_resched.cold+0x1fe/0x2c1 [ 10.305495][ T192] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.305500][ T192] ? __kmalloc_noprof+0xdb/0x760 [ 10.305504][ T192] __kmalloc_noprof+0x443/0x760 [ 10.305506][ T192] ? alloc_buf.isra.0+0x4b/0x260 [ 10.305513][ T192] ? do_raw_spin_unlock+0x59/0x250 [ 10.305516][ T192] alloc_buf.isra.0+0x4b/0x260 [ 10.305519][ T192] put_chars+0x1e1/0x2f0 [ 10.305522][ T192] ? __send_to_port+0x420/0x420 [ 10.305523][ T192] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.305526][ T192] ? validate_chain+0x38b/0xc20 [ 10.305532][ T192] hvc_console_print+0x292/0x780 [ 10.305539][ T192] ? hvc_write+0x3a0/0x3a0 [ 10.305542][ T192] ? rcu_is_watching+0x16/0xd0 [ 10.305544][ T192] ? lock_acquire+0x13c/0x160 [ 10.305548][ T192] console_emit_next_record+0x22f/0x4c0 [ 10.305552][ T192] ? devkmsg_read+0x4b0/0x4b0 [ 10.305554][ T192] ? console_flush_one_record+0x106/0x710 [ 10.305557][ T192] ? rcu_is_watching+0x16/0xd0 [ 10.305559][ T192] ? lock_acquire+0x13c/0x160 [ 10.305563][ T192] console_flush_one_record+0x46f/0x710 [ 10.305567][ T192] ? console_emit_next_record+0x4c0/0x4c0 [ 10.305569][ T192] ? __lock_acquire+0x518/0xc20 [ 10.305574][ T192] console_unlock+0xee/0x1f0 [ 10.305577][ T192] ? console_flush_one_record+0x710/0x710 [ 10.305579][ T192] ? rcu_is_watching+0x16/0xd0 [ 10.305581][ T192] ? lock_acquire+0xe0/0x160 [ 10.305584][ T192] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.305586][ T192] ? vprintk_emit+0x320/0x3e0 [ 10.305589][ T192] vprintk_emit+0x37c/0x3e0 [ 10.305592][ T192] ? wake_up_klogd_work_func+0x90/0x90 [ 10.305595][ T192] ? __lock_acquire+0x518/0xc20 [ 10.305598][ T192] _printk+0xc7/0x100 [ 10.305602][ T192] ? snapshot_read.cold+0x21/0x21 [ 10.305605][ T192] ? do_raw_spin_lock+0x131/0x280 [ 10.305607][ T192] ? __rwlock_init+0x150/0x150 [ 10.305611][ T192] ? do_raw_spin_lock+0x131/0x280 [ 10.305614][ T192] do_exit.cold+0x82/0x9c [ 10.305618][ T192] ? exit_notify+0x890/0x890 [ 10.305619][ T192] ? __lock_release.isra.0+0x69/0x1a0 [ 10.305622][ T192] ? rcu_is_watching+0x16/0xd0 [ 10.305625][ T192] do_group_exit+0xb8/0x370 [ 10.305628][ T192] __x64_sys_exit_group+0x3c/0x50 [ 10.305630][ T192] x64_sys_call+0x1567/0x1570 [ 10.305633][ T192] do_syscall_64+0xff/0x530 [ 10.305637][ T192] ? exc_page_fault+0xee/0x100 [ 10.305640][ T192] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.305642][ T192] RIP: 0033:0x7f6789ba81b8 [ 10.305644][ T192] Code: Unable to access opcode bytes at 0x7f6789ba818e. [ 10.305645][ T192] RSP: 002b:00007ffc9648c448 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.305647][ T192] RAX: ffffffffffffffda RBX: 00007f6789cd8f88 RCX: 00007f6789ba81b8 [ 10.305648][ T192] RDX: 00007f67898f2fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.305649][ T192] RBP: 00007ffc9648c4a0 R08: 0000000000000000 R09: 0000000000000050 [ 10.305650][ T192] R10: 00007ffc9648c260 R11: 0000000000000246 R12: 0000000000000001 [ 10.305651][ T192] R13: 0000000000000000 R14: 00007f6789cd7680 R15: 00007f6789cd8fa0 [ 10.305658][ T192]