[ 9.069927][ T168] ip (168) used greatest stack depth: 24056 bytes left [ 9.069943][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.069945][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: ip [ 9.069946][ T168] preempt_count: 2, expected: 0 [ 9.069947][ T168] RCU nest depth: 0, expected: 0 [ 9.069948][ T168] locks held by ip/168: 5, last CPU#0: [ 9.069951][ T168] #0: ffffffff8ca02f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 9.069962][ T168] #1: ffffffff8cb6a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.069967][ T168] #2: ffffffff8cb6a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.069970][ T168] #3: ffffffff8ca89de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.069974][ T168] #4: ffffffff8ca89ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.069977][ T168] irq event stamp: 31518 [ 9.069977][ T168] hardirqs last enabled at (31517): [] __down_trylock_console_sem+0x86/0xa0 [ 9.069980][ T168] hardirqs last disabled at (31518): [] console_emit_next_record+0x3d4/0x4c0 [ 9.069982][ T168] softirqs last enabled at (30508): [] handle_softirqs+0x67c/0x900 [ 9.069984][ T168] softirqs last disabled at (30499): [] __irq_exit_rcu+0x145/0x1c0 [ 9.069987][ T168] Preemption disabled at: [ 9.069987][ T168] [<0000000000000000>] 0x0 [ 9.069994][ T168] CPU: 0 UID: 0 PID: 168 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.069997][ T168] Tainted: [W]=WARN [ 9.069998][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.070000][ T168] Call Trace: [ 9.070001][ T168] [ 9.070003][ T168] dump_stack_lvl+0x6f/0xa0 [ 9.070008][ T168] __might_resched.cold+0x1fe/0x2c1 [ 9.070012][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.070016][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 9.070021][ T168] __kmalloc_noprof+0x443/0x760 [ 9.070023][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 9.070029][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 9.070032][ T168] alloc_buf.isra.0+0x4b/0x260 [ 9.070036][ T168] put_chars+0x1e1/0x2f0 [ 9.070038][ T168] ? __send_to_port+0x420/0x420 [ 9.070045][ T168] hvc_console_print+0x292/0x780 [ 9.070051][ T168] ? hvc_write+0x3a0/0x3a0 [ 9.070054][ T168] ? lock_acquire+0x13c/0x160 [ 9.070058][ T168] console_emit_next_record+0x22f/0x4c0 [ 9.070062][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 9.070063][ T168] ? console_flush_one_record+0x106/0x710 [ 9.070066][ T168] ? rcu_is_watching+0x16/0xd0 [ 9.070069][ T168] ? lock_acquire+0x13c/0x160 [ 9.070073][ T168] console_flush_one_record+0x46f/0x710 [ 9.070077][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 9.070078][ T168] ? __lock_acquire+0x518/0xc20 [ 9.070083][ T168] console_unlock+0xee/0x1f0 [ 9.070085][ T168] ? console_flush_one_record+0x710/0x710 [ 9.070087][ T168] ? rcu_is_watching+0x16/0xd0 [ 9.070088][ T168] ? lock_acquire+0x60/0x160 [ 9.070092][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.070094][ T168] ? vprintk_emit+0x320/0x3e0 [ 9.070097][ T168] vprintk_emit+0x37c/0x3e0 [ 9.070100][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 9.070103][ T168] ? __lock_acquire+0x518/0xc20 [ 9.070107][ T168] _printk+0xc7/0x100 [ 9.070110][ T168] ? snapshot_read.cold+0x21/0x21 [ 9.070113][ T168] ? do_raw_spin_lock+0x131/0x280 [ 9.070115][ T168] ? __rwlock_init+0x150/0x150 [ 9.070119][ T168] ? do_raw_spin_lock+0x131/0x280 [ 9.070122][ T168] do_exit.cold+0x82/0x9c [ 9.070126][ T168] ? exit_notify+0x890/0x890 [ 9.070127][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 9.070130][ T168] ? rcu_is_watching+0x16/0xd0 [ 9.070134][ T168] do_group_exit+0xb8/0x370 [ 9.070137][ T168] __x64_sys_exit_group+0x3c/0x50 [ 9.070139][ T168] x64_sys_call+0x1567/0x1570 [ 9.070141][ T168] do_syscall_64+0x10e/0x570 [ 9.070145][ T168] ? exc_page_fault+0xee/0x100 [ 9.070148][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.070150][ T168] RIP: 0033:0x7f8e039661b8 [ 9.070152][ T168] Code: Unable to access opcode bytes at 0x7f8e0396618e. [ 9.070153][ T168] RSP: 002b:00007ffc9d7a8228 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.070156][ T168] RAX: ffffffffffffffda RBX: 00007f8e03a96f88 RCX: 00007f8e039661b8 [ 9.070157][ T168] RDX: 00007f8e036b0fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.070158][ T168] RBP: 00007ffc9d7a8280 R08: 0000000000000000 R09: 0000000000000050 [ 9.070159][ T168] R10: 00007ffc9d7a8040 R11: 0000000000000246 R12: 0000000000000001 [ 9.070159][ T168] R13: 0000000000000000 R14: 00007f8e03a95680 R15: 00007f8e03a96fa0 [ 9.070166][ T168]