[ 9.350163][ T194] ip (194) used greatest stack depth: 23864 bytes left [ 9.350179][ T194] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.350181][ T194] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 194, name: ip [ 9.350183][ T194] preempt_count: 2, expected: 0 [ 9.350183][ T194] RCU nest depth: 0, expected: 0 [ 9.350184][ T194] locks held by ip/194: 5, last CPU#0: [ 9.350186][ T194] #0: ffffffffa6e167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.350198][ T194] #1: ffffffffa6f7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.350202][ T194] #2: ffffffffa6f7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.350206][ T194] #3: ffffffffa6e9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.350210][ T194] #4: ffffffffa6e9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.350214][ T194] irq event stamp: 29798 [ 9.350215][ T194] hardirqs last enabled at (29797): [] __down_trylock_console_sem+0x86/0xa0 [ 9.350218][ T194] hardirqs last disabled at (29798): [] console_emit_next_record+0x3d4/0x4c0 [ 9.350220][ T194] softirqs last enabled at (23454): [] handle_softirqs+0x67c/0x900 [ 9.350222][ T194] softirqs last disabled at (23315): [] __irq_exit_rcu+0x145/0x1c0 [ 9.350224][ T194] Preemption disabled at: [ 9.350225][ T194] [<0000000000000000>] 0x0 [ 9.350231][ T194] CPU: 0 UID: 0 PID: 194 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.350234][ T194] Tainted: [W]=WARN [ 9.350235][ T194] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.350237][ T194] Call Trace: [ 9.350239][ T194] [ 9.350240][ T194] dump_stack_lvl+0x6f/0xa0 [ 9.350246][ T194] __might_resched.cold+0x1fe/0x2c1 [ 9.350251][ T194] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.350255][ T194] ? __kmalloc_noprof+0xdb/0x760 [ 9.350259][ T194] __kmalloc_noprof+0x443/0x760 [ 9.350261][ T194] ? alloc_buf.isra.0+0x4b/0x260 [ 9.350268][ T194] ? do_raw_spin_unlock+0x59/0x250 [ 9.350271][ T194] alloc_buf.isra.0+0x4b/0x260 [ 9.350274][ T194] put_chars+0x1e1/0x2f0 [ 9.350277][ T194] ? __send_to_port+0x420/0x420 [ 9.350278][ T194] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.350282][ T194] ? validate_chain+0x38b/0xc20 [ 9.350287][ T194] hvc_console_print+0x292/0x780 [ 9.350294][ T194] ? hvc_write+0x3a0/0x3a0 [ 9.350297][ T194] ? rcu_is_watching+0x16/0xd0 [ 9.350299][ T194] ? lock_acquire+0x13c/0x160 [ 9.350303][ T194] console_emit_next_record+0x22f/0x4c0 [ 9.350306][ T194] ? devkmsg_read+0x4b0/0x4b0 [ 9.350308][ T194] ? console_flush_one_record+0x106/0x710 [ 9.350311][ T194] ? rcu_is_watching+0x16/0xd0 [ 9.350313][ T194] ? lock_acquire+0x13c/0x160 [ 9.350317][ T194] console_flush_one_record+0x46f/0x710 [ 9.350321][ T194] ? console_emit_next_record+0x4c0/0x4c0 [ 9.350323][ T194] ? __lock_acquire+0x518/0xc20 [ 9.350328][ T194] console_unlock+0xee/0x1f0 [ 9.350331][ T194] ? console_flush_one_record+0x710/0x710 [ 9.350333][ T194] ? rcu_is_watching+0x16/0xd0 [ 9.350334][ T194] ? lock_acquire+0xe0/0x160 [ 9.350338][ T194] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.350340][ T194] ? vprintk_emit+0x320/0x3e0 [ 9.350342][ T194] vprintk_emit+0x37c/0x3e0 [ 9.350345][ T194] ? wake_up_klogd_work_func+0x90/0x90 [ 9.350348][ T194] ? __lock_acquire+0x518/0xc20 [ 9.350352][ T194] _printk+0xc7/0x100 [ 9.350355][ T194] ? snapshot_read.cold+0x21/0x21 [ 9.350358][ T194] ? do_raw_spin_lock+0x131/0x280 [ 9.350361][ T194] ? __rwlock_init+0x150/0x150 [ 9.350364][ T194] ? do_raw_spin_lock+0x131/0x280 [ 9.350367][ T194] do_exit.cold+0x82/0x9c [ 9.350371][ T194] ? exit_notify+0x890/0x890 [ 9.350372][ T194] ? __lock_release.isra.0+0x69/0x1a0 [ 9.350375][ T194] ? rcu_is_watching+0x16/0xd0 [ 9.350378][ T194] do_group_exit+0xb8/0x370 [ 9.350381][ T194] __x64_sys_exit_group+0x3c/0x50 [ 9.350383][ T194] x64_sys_call+0x1567/0x1570 [ 9.350385][ T194] do_syscall_64+0xff/0x530 [ 9.350389][ T194] ? exc_page_fault+0xee/0x100 [ 9.350392][ T194] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.350394][ T194] RIP: 0033:0x7febc7fbe1b8 [ 9.350396][ T194] Code: Unable to access opcode bytes at 0x7febc7fbe18e. [ 9.350397][ T194] RSP: 002b:00007ffc7e637cd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.350399][ T194] RAX: ffffffffffffffda RBX: 00007febc80eef88 RCX: 00007febc7fbe1b8 [ 9.350401][ T194] RDX: 00007febc7d08fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.350401][ T194] RBP: 00007ffc7e637d30 R08: 0000000000000000 R09: 0000000000000050 [ 9.350402][ T194] R10: 00007ffc7e637af0 R11: 0000000000000246 R12: 0000000000000001 [ 9.350403][ T194] R13: 0000000000000000 R14: 00007febc80ed680 R15: 00007febc80eefa0 [ 9.350409][ T194]