[ 9.273271][ T183] pm_nl_ctl (183) used greatest stack depth: 24752 bytes left [ 9.273287][ T183] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.273289][ T183] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 183, name: pm_nl_ctl [ 9.273291][ T183] preempt_count: 2, expected: 0 [ 9.273291][ T183] RCU nest depth: 0, expected: 0 [ 9.273292][ T183] locks held by pm_nl_ctl/183: 5, last CPU#0: [ 9.273295][ T183] #0: ffffffffa26267b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.273306][ T183] #1: ffffffffa278dcc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.273312][ T183] #2: ffffffffa278dd38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.273316][ T183] #3: ffffffffa26ad660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.273319][ T183] #4: ffffffffa26ad560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.273323][ T183] irq event stamp: 37724 [ 9.273323][ T183] hardirqs last enabled at (37723): [] __down_trylock_console_sem+0x86/0xa0 [ 9.273325][ T183] hardirqs last disabled at (37724): [] console_emit_next_record+0x3d4/0x4c0 [ 9.273327][ T183] softirqs last enabled at (37102): [] handle_softirqs+0x67c/0x900 [ 9.273329][ T183] softirqs last disabled at (35803): [] __irq_exit_rcu+0x145/0x1c0 [ 9.273331][ T183] Preemption disabled at: [ 9.273332][ T183] [<0000000000000000>] 0x0 [ 9.273339][ T183] CPU: 0 UID: 0 PID: 183 Comm: pm_nl_ctl Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.273342][ T183] Tainted: [W]=WARN [ 9.273343][ T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.273345][ T183] Call Trace: [ 9.273347][ T183] [ 9.273348][ T183] dump_stack_lvl+0x6f/0xa0 [ 9.273355][ T183] __might_resched.cold+0x1fe/0x2c1 [ 9.273359][ T183] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.273363][ T183] ? __kmalloc_noprof+0xdb/0x760 [ 9.273368][ T183] __kmalloc_noprof+0x443/0x760 [ 9.273370][ T183] ? alloc_buf.isra.0+0x4b/0x260 [ 9.273376][ T183] ? do_raw_spin_unlock+0x59/0x250 [ 9.273379][ T183] alloc_buf.isra.0+0x4b/0x260 [ 9.273383][ T183] put_chars+0x1e1/0x2f0 [ 9.273386][ T183] ? __send_to_port+0x420/0x420 [ 9.273387][ T183] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.273392][ T183] ? validate_chain+0x38b/0xc20 [ 9.273398][ T183] hvc_console_print+0x292/0x780 [ 9.273405][ T183] ? hvc_write+0x3a0/0x3a0 [ 9.273408][ T183] ? rcu_is_watching+0x16/0xd0 [ 9.273410][ T183] ? lock_acquire+0x13c/0x160 [ 9.273414][ T183] console_emit_next_record+0x22f/0x4c0 [ 9.273417][ T183] ? devkmsg_read+0x4b0/0x4b0 [ 9.273419][ T183] ? console_flush_one_record+0x106/0x710 [ 9.273422][ T183] ? rcu_is_watching+0x16/0xd0 [ 9.273424][ T183] ? lock_acquire+0x13c/0x160 [ 9.273432][ T183] console_flush_one_record+0x46f/0x710 [ 9.273436][ T183] ? console_emit_next_record+0x4c0/0x4c0 [ 9.273437][ T183] ? __lock_acquire+0x518/0xc20 [ 9.273443][ T183] console_unlock+0xee/0x1f0 [ 9.273445][ T183] ? console_flush_one_record+0x710/0x710 [ 9.273447][ T183] ? rcu_is_watching+0x16/0xd0 [ 9.273449][ T183] ? lock_acquire+0x60/0x160 [ 9.273452][ T183] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.273454][ T183] ? vprintk_emit+0x320/0x3e0 [ 9.273457][ T183] vprintk_emit+0x37c/0x3e0 [ 9.273461][ T183] ? wake_up_klogd_work_func+0x90/0x90 [ 9.273464][ T183] ? __lock_acquire+0x518/0xc20 [ 9.273467][ T183] _printk+0xc7/0x100 [ 9.273471][ T183] ? snapshot_read.cold+0x21/0x21 [ 9.273474][ T183] ? do_raw_spin_lock+0x131/0x280 [ 9.273476][ T183] ? __rwlock_init+0x150/0x150 [ 9.273480][ T183] ? do_raw_spin_lock+0x131/0x280 [ 9.273482][ T183] do_exit.cold+0x82/0x9c [ 9.273486][ T183] ? exit_notify+0x890/0x890 [ 9.273488][ T183] ? __lock_release.isra.0+0x69/0x1a0 [ 9.273491][ T183] ? rcu_is_watching+0x16/0xd0 [ 9.273495][ T183] do_group_exit+0xb8/0x370 [ 9.273498][ T183] __x64_sys_exit_group+0x3c/0x50 [ 9.273500][ T183] x64_sys_call+0x1567/0x1570 [ 9.273502][ T183] do_syscall_64+0xff/0x530 [ 9.273505][ T183] ? exc_page_fault+0xee/0x100 [ 9.273509][ T183] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.273511][ T183] RIP: 0033:0x7f004c4661b8 [ 9.273513][ T183] Code: Unable to access opcode bytes at 0x7f004c46618e. [ 9.273515][ T183] RSP: 002b:00007ffcd2e2a0a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.273517][ T183] RAX: ffffffffffffffda RBX: 00007f004c596f88 RCX: 00007f004c4661b8 [ 9.273518][ T183] RDX: 00007f004c3a3a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 9.273519][ T183] RBP: 00007ffcd2e2a100 R08: 0000000000000000 R09: 0000000000000000 [ 9.273520][ T183] R10: 00007ffcd2e29f40 R11: 0000000000000246 R12: 0000000000000001 [ 9.273521][ T183] R13: 0000000000000000 R14: 00007f004c595680 R15: 00007f004c596fa0 [ 9.273528][ T183]