[ 9.276149][ T168] ip (168) used greatest stack depth: 23880 bytes left [ 9.276164][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.276166][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: ip [ 9.276168][ T168] preempt_count: 2, expected: 0 [ 9.276169][ T168] RCU nest depth: 0, expected: 0 [ 9.276170][ T168] locks held by ip/168: 5, last CPU#2: [ 9.276172][ T168] #0: ffffffffba402f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 9.276184][ T168] #1: ffffffffba56a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.276189][ T168] #2: ffffffffba56a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.276192][ T168] #3: ffffffffba489de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.276195][ T168] #4: ffffffffba489ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.276198][ T168] irq event stamp: 28316 [ 9.276199][ T168] hardirqs last enabled at (28315): [] __down_trylock_console_sem+0x86/0xa0 [ 9.276202][ T168] hardirqs last disabled at (28316): [] console_emit_next_record+0x3d4/0x4c0 [ 9.276204][ T168] softirqs last enabled at (27292): [] handle_softirqs+0x67c/0x900 [ 9.276206][ T168] softirqs last disabled at (27123): [] __irq_exit_rcu+0x145/0x1c0 [ 9.276209][ T168] Preemption disabled at: [ 9.276209][ T168] [<0000000000000000>] 0x0 [ 9.276216][ T168] CPU: 2 UID: 0 PID: 168 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.276219][ T168] Tainted: [W]=WARN [ 9.276220][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.276222][ T168] Call Trace: [ 9.276223][ T168] [ 9.276225][ T168] dump_stack_lvl+0x6f/0xa0 [ 9.276230][ T168] __might_resched.cold+0x1fe/0x2c1 [ 9.276235][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.276238][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 9.276243][ T168] __kmalloc_noprof+0x443/0x760 [ 9.276245][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 9.276251][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 9.276254][ T168] alloc_buf.isra.0+0x4b/0x260 [ 9.276258][ T168] put_chars+0x1e1/0x2f0 [ 9.276261][ T168] ? __send_to_port+0x420/0x420 [ 9.276267][ T168] hvc_console_print+0x292/0x780 [ 9.276274][ T168] ? hvc_write+0x3a0/0x3a0 [ 9.276276][ T168] ? lock_acquire+0x13c/0x160 [ 9.276281][ T168] console_emit_next_record+0x22f/0x4c0 [ 9.276284][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 9.276285][ T168] ? console_flush_one_record+0x106/0x710 [ 9.276288][ T168] ? rcu_is_watching+0x16/0xd0 [ 9.276291][ T168] ? lock_acquire+0x13c/0x160 [ 9.276295][ T168] console_flush_one_record+0x46f/0x710 [ 9.276299][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 9.276300][ T168] ? __lock_acquire+0x518/0xc20 [ 9.276305][ T168] console_unlock+0xee/0x1f0 [ 9.276308][ T168] ? console_flush_one_record+0x710/0x710 [ 9.276309][ T168] ? rcu_is_watching+0x16/0xd0 [ 9.276311][ T168] ? lock_acquire+0x60/0x160 [ 9.276314][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.276316][ T168] ? vprintk_emit+0x320/0x3e0 [ 9.276319][ T168] vprintk_emit+0x37c/0x3e0 [ 9.276322][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 9.276325][ T168] ? __lock_acquire+0x518/0xc20 [ 9.276329][ T168] _printk+0xc7/0x100 [ 9.276332][ T168] ? snapshot_read.cold+0x21/0x21 [ 9.276335][ T168] ? do_raw_spin_lock+0x131/0x280 [ 9.276337][ T168] ? __rwlock_init+0x150/0x150 [ 9.276341][ T168] ? do_raw_spin_lock+0x131/0x280 [ 9.276344][ T168] do_exit.cold+0x82/0x9c [ 9.276348][ T168] ? exit_notify+0x890/0x890 [ 9.276349][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 9.276352][ T168] ? rcu_is_watching+0x16/0xd0 [ 9.276355][ T168] do_group_exit+0xb8/0x370 [ 9.276358][ T168] __x64_sys_exit_group+0x3c/0x50 [ 9.276360][ T168] x64_sys_call+0x1567/0x1570 [ 9.276363][ T168] do_syscall_64+0x10e/0x570 [ 9.276367][ T168] ? exc_page_fault+0xee/0x100 [ 9.276370][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.276372][ T168] RIP: 0033:0x7fca3a08e1b8 [ 9.276374][ T168] Code: Unable to access opcode bytes at 0x7fca3a08e18e. [ 9.276375][ T168] RSP: 002b:00007fffe8c8d108 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.276377][ T168] RAX: ffffffffffffffda RBX: 00007fca3a1bef88 RCX: 00007fca3a08e1b8 [ 9.276379][ T168] RDX: 00007fca39dd8fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.276380][ T168] RBP: 00007fffe8c8d160 R08: 0000000000000000 R09: 0000000000000050 [ 9.276380][ T168] R10: 00007fffe8c8cf20 R11: 0000000000000246 R12: 0000000000000001 [ 9.276381][ T168] R13: 0000000000000000 R14: 00007fca3a1bd680 R15: 00007fca3a1befa0 [ 9.276388][ T168]