[ 10.903595][ T196] ip (196) used greatest stack depth: 23376 bytes left [ 10.903615][ T196] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.903617][ T196] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 196, name: ip [ 10.903619][ T196] preempt_count: 2, expected: 0 [ 10.903621][ T196] RCU nest depth: 0, expected: 0 [ 10.903622][ T196] locks held by ip/196: 5, last CPU#2: [ 10.903624][ T196] #0: ffffffff974167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.903637][ T196] #1: ffffffff9757ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.903644][ T196] #2: ffffffff9757de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.903650][ T196] #3: ffffffff9749d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.903655][ T196] #4: ffffffff9749d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.903661][ T196] irq event stamp: 30436 [ 10.903662][ T196] hardirqs last enabled at (30435): [] __down_trylock_console_sem+0x86/0xa0 [ 10.903665][ T196] hardirqs last disabled at (30436): [] console_emit_next_record+0x3d4/0x4c0 [ 10.903668][ T196] softirqs last enabled at (30002): [] handle_softirqs+0x67c/0x900 [ 10.903671][ T196] softirqs last disabled at (29995): [] __irq_exit_rcu+0x145/0x1c0 [ 10.903675][ T196] Preemption disabled at: [ 10.903675][ T196] [<0000000000000000>] 0x0 [ 10.903683][ T196] CPU: 2 UID: 0 PID: 196 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.903688][ T196] Tainted: [W]=WARN [ 10.903689][ T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.903691][ T196] Call Trace: [ 10.903693][ T196] [ 10.903695][ T196] dump_stack_lvl+0x6f/0xa0 [ 10.903704][ T196] __might_resched.cold+0x1fe/0x2c1 [ 10.903710][ T196] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.903715][ T196] ? __kmalloc_noprof+0xdb/0x760 [ 10.903721][ T196] __kmalloc_noprof+0x443/0x760 [ 10.903724][ T196] ? alloc_buf.isra.0+0x4b/0x260 [ 10.903733][ T196] ? do_raw_spin_unlock+0x59/0x250 [ 10.903737][ T196] alloc_buf.isra.0+0x4b/0x260 [ 10.903742][ T196] put_chars+0x1e1/0x2f0 [ 10.903746][ T196] ? __send_to_port+0x420/0x420 [ 10.903747][ T196] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.903752][ T196] ? validate_chain+0x38b/0xc20 [ 10.903761][ T196] hvc_console_print+0x292/0x780 [ 10.903772][ T196] ? hvc_write+0x3a0/0x3a0 [ 10.903776][ T196] ? rcu_is_watching+0x16/0xd0 [ 10.903779][ T196] ? lock_acquire+0x13c/0x160 [ 10.903785][ T196] console_emit_next_record+0x22f/0x4c0 [ 10.903791][ T196] ? devkmsg_read+0x4b0/0x4b0 [ 10.903793][ T196] ? console_flush_one_record+0x106/0x710 [ 10.903798][ T196] ? rcu_is_watching+0x16/0xd0 [ 10.903800][ T196] ? lock_acquire+0x13c/0x160 [ 10.903807][ T196] console_flush_one_record+0x46f/0x710 [ 10.903813][ T196] ? console_emit_next_record+0x4c0/0x4c0 [ 10.903816][ T196] ? __lock_acquire+0x518/0xc20 [ 10.903824][ T196] console_unlock+0xee/0x1f0 [ 10.903828][ T196] ? console_flush_one_record+0x710/0x710 [ 10.903831][ T196] ? rcu_is_watching+0x16/0xd0 [ 10.903833][ T196] ? lock_acquire+0xe0/0x160 [ 10.903839][ T196] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.903841][ T196] ? vprintk_emit+0x320/0x3e0 [ 10.903846][ T196] vprintk_emit+0x37c/0x3e0 [ 10.903850][ T196] ? wake_up_klogd_work_func+0x90/0x90 [ 10.903855][ T196] ? __lock_acquire+0x518/0xc20 [ 10.903861][ T196] _printk+0xc7/0x100 [ 10.903865][ T196] ? snapshot_read.cold+0x21/0x21 [ 10.903870][ T196] ? do_raw_spin_lock+0x131/0x280 [ 10.903873][ T196] ? __rwlock_init+0x150/0x150 [ 10.903879][ T196] ? do_raw_spin_lock+0x131/0x280 [ 10.903883][ T196] do_exit.cold+0x82/0x9c [ 10.903888][ T196] ? exit_notify+0x890/0x890 [ 10.903890][ T196] ? __lock_release.isra.0+0x69/0x1a0 [ 10.903894][ T196] ? rcu_is_watching+0x16/0xd0 [ 10.903900][ T196] do_group_exit+0xb8/0x370 [ 10.903904][ T196] __x64_sys_exit_group+0x3c/0x50 [ 10.903907][ T196] x64_sys_call+0x1567/0x1570 [ 10.903910][ T196] do_syscall_64+0xff/0x530 [ 10.903915][ T196] ? exc_page_fault+0xee/0x100 [ 10.903921][ T196] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.903924][ T196] RIP: 0033:0x7fe9438c01b8 [ 10.903927][ T196] Code: Unable to access opcode bytes at 0x7fe9438c018e. [ 10.903928][ T196] RSP: 002b:00007ffccd991748 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.903931][ T196] RAX: ffffffffffffffda RBX: 00007fe9439f0f88 RCX: 00007fe9438c01b8 [ 10.903937][ T196] RDX: 00007fe94360afc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.903938][ T196] RBP: 00007ffccd9917a0 R08: 0000000000000000 R09: 0000000000000050 [ 10.903939][ T196] R10: 00007ffccd991560 R11: 0000000000000246 R12: 0000000000000001 [ 10.903940][ T196] R13: 0000000000000000 R14: 00007fe9439ef680 R15: 00007fe9439f0fa0 [ 10.903952][ T196]