[ 10.212241][ T193] ip (193) used greatest stack depth: 24096 bytes left [ 10.212257][ T193] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.212259][ T193] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 193, name: ip [ 10.212261][ T193] preempt_count: 2, expected: 0 [ 10.212261][ T193] RCU nest depth: 0, expected: 0 [ 10.212262][ T193] locks held by ip/193: 5, last CPU#3: [ 10.212265][ T193] #0: ffffffffb46167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.212276][ T193] #1: ffffffffb477ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.212281][ T193] #2: ffffffffb477de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.212286][ T193] #3: ffffffffb469d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.212290][ T193] #4: ffffffffb469d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.212294][ T193] irq event stamp: 36682 [ 10.212295][ T193] hardirqs last enabled at (36681): [] __down_trylock_console_sem+0x86/0xa0 [ 10.212298][ T193] hardirqs last disabled at (36682): [] console_emit_next_record+0x3d4/0x4c0 [ 10.212300][ T193] softirqs last enabled at (36004): [] handle_softirqs+0x67c/0x900 [ 10.212302][ T193] softirqs last disabled at (35999): [] __irq_exit_rcu+0x145/0x1c0 [ 10.212305][ T193] Preemption disabled at: [ 10.212305][ T193] [<0000000000000000>] 0x0 [ 10.212312][ T193] CPU: 3 UID: 0 PID: 193 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.212317][ T193] Tainted: [W]=WARN [ 10.212318][ T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.212320][ T193] Call Trace: [ 10.212322][ T193] [ 10.212323][ T193] dump_stack_lvl+0x6f/0xa0 [ 10.212330][ T193] __might_resched.cold+0x1fe/0x2c1 [ 10.212335][ T193] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.212339][ T193] ? __kmalloc_noprof+0xdb/0x760 [ 10.212344][ T193] __kmalloc_noprof+0x443/0x760 [ 10.212346][ T193] ? alloc_buf.isra.0+0x4b/0x260 [ 10.212353][ T193] ? do_raw_spin_unlock+0x59/0x250 [ 10.212355][ T193] alloc_buf.isra.0+0x4b/0x260 [ 10.212359][ T193] put_chars+0x1e1/0x2f0 [ 10.212361][ T193] ? __send_to_port+0x420/0x420 [ 10.212363][ T193] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.212366][ T193] ? validate_chain+0x38b/0xc20 [ 10.212372][ T193] hvc_console_print+0x292/0x780 [ 10.212379][ T193] ? hvc_write+0x3a0/0x3a0 [ 10.212382][ T193] ? rcu_is_watching+0x16/0xd0 [ 10.212384][ T193] ? lock_acquire+0x13c/0x160 [ 10.212388][ T193] console_emit_next_record+0x22f/0x4c0 [ 10.212392][ T193] ? devkmsg_read+0x4b0/0x4b0 [ 10.212394][ T193] ? console_flush_one_record+0x106/0x710 [ 10.212397][ T193] ? rcu_is_watching+0x16/0xd0 [ 10.212399][ T193] ? lock_acquire+0x13c/0x160 [ 10.212403][ T193] console_flush_one_record+0x46f/0x710 [ 10.212407][ T193] ? console_emit_next_record+0x4c0/0x4c0 [ 10.212409][ T193] ? __lock_acquire+0x518/0xc20 [ 10.212415][ T193] console_unlock+0xee/0x1f0 [ 10.212418][ T193] ? console_flush_one_record+0x710/0x710 [ 10.212420][ T193] ? rcu_is_watching+0x16/0xd0 [ 10.212421][ T193] ? lock_acquire+0xe0/0x160 [ 10.212425][ T193] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.212427][ T193] ? vprintk_emit+0x320/0x3e0 [ 10.212430][ T193] vprintk_emit+0x37c/0x3e0 [ 10.212433][ T193] ? wake_up_klogd_work_func+0x90/0x90 [ 10.212436][ T193] ? __lock_acquire+0x518/0xc20 [ 10.212440][ T193] _printk+0xc7/0x100 [ 10.212443][ T193] ? snapshot_read.cold+0x21/0x21 [ 10.212446][ T193] ? do_raw_spin_lock+0x131/0x280 [ 10.212449][ T193] ? __rwlock_init+0x150/0x150 [ 10.212453][ T193] ? do_raw_spin_lock+0x131/0x280 [ 10.212456][ T193] do_exit.cold+0x82/0x9c [ 10.212460][ T193] ? exit_notify+0x890/0x890 [ 10.212461][ T193] ? __lock_release.isra.0+0x69/0x1a0 [ 10.212464][ T193] ? rcu_is_watching+0x16/0xd0 [ 10.212468][ T193] do_group_exit+0xb8/0x370 [ 10.212470][ T193] __x64_sys_exit_group+0x3c/0x50 [ 10.212472][ T193] x64_sys_call+0x1567/0x1570 [ 10.212475][ T193] do_syscall_64+0xff/0x530 [ 10.212479][ T193] ? exc_page_fault+0xee/0x100 [ 10.212482][ T193] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.212484][ T193] RIP: 0033:0x7fcef72a61b8 [ 10.212487][ T193] Code: Unable to access opcode bytes at 0x7fcef72a618e. [ 10.212488][ T193] RSP: 002b:00007ffdeb8d50d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.212490][ T193] RAX: ffffffffffffffda RBX: 00007fcef73d6f88 RCX: 00007fcef72a61b8 [ 10.212491][ T193] RDX: 00007fcef6ff0fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.212492][ T193] RBP: 00007ffdeb8d5130 R08: 0000000000000000 R09: 0000000000008010 [ 10.212493][ T193] R10: 00007ffdeb8d4ef0 R11: 0000000000000246 R12: 0000000000000001 [ 10.212494][ T193] R13: 0000000000000000 R14: 00007fcef73d5680 R15: 00007fcef73d6fa0 [ 10.212501][ T193]