[ 13.196165][ T88] (udev-worker) (88) used greatest stack depth: 22696 bytes left [ 13.196181][ T88] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.196183][ T88] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 88, name: (udev-worker) [ 13.196185][ T88] preempt_count: 2, expected: 0 [ 13.196186][ T88] RCU nest depth: 0, expected: 0 [ 13.196187][ T88] locks held by (udev-worker)/88: 5, last CPU#0: [ 13.196189][ T88] #0: ffffffffa3a027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.196201][ T88] #1: ffffffffa3b69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.196207][ T88] #2: ffffffffa3b69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.196210][ T88] #3: ffffffffa3a89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.196214][ T88] #4: ffffffffa3a89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.196217][ T88] irq event stamp: 468510 [ 13.196218][ T88] hardirqs last enabled at (468509): [] __down_trylock_console_sem+0x86/0xa0 [ 13.196221][ T88] hardirqs last disabled at (468510): [] console_emit_next_record+0x3d4/0x4c0 [ 13.196223][ T88] softirqs last enabled at (468446): [] netlink_release+0x17b/0xcf0 [ 13.196227][ T88] softirqs last disabled at (468444): [] netlink_release+0xd2/0xcf0 [ 13.196229][ T88] Preemption disabled at: [ 13.196230][ T88] [<0000000000000000>] 0x0 [ 13.196237][ T88] CPU: 0 UID: 0 PID: 88 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.196240][ T88] Tainted: [W]=WARN [ 13.196241][ T88] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.196243][ T88] Call Trace: [ 13.196244][ T88] [ 13.196246][ T88] dump_stack_lvl+0x6f/0xa0 [ 13.196252][ T88] __might_resched.cold+0x1fe/0x2c1 [ 13.196257][ T88] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.196261][ T88] ? __kmalloc_noprof+0xdb/0x760 [ 13.196265][ T88] __kmalloc_noprof+0x443/0x760 [ 13.196267][ T88] ? alloc_buf.isra.0+0x4b/0x260 [ 13.196274][ T88] ? do_raw_spin_unlock+0x59/0x250 [ 13.196276][ T88] alloc_buf.isra.0+0x4b/0x260 [ 13.196280][ T88] put_chars+0x1e1/0x2f0 [ 13.196283][ T88] ? __send_to_port+0x420/0x420 [ 13.196285][ T88] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 13.196289][ T88] ? validate_chain+0x38b/0xc20 [ 13.196296][ T88] hvc_console_print+0x292/0x780 [ 13.196303][ T88] ? hvc_write+0x3a0/0x3a0 [ 13.196306][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.196308][ T88] ? lock_acquire+0x13c/0x160 [ 13.196312][ T88] console_emit_next_record+0x22f/0x4c0 [ 13.196316][ T88] ? devkmsg_read+0x4b0/0x4b0 [ 13.196317][ T88] ? console_flush_one_record+0x106/0x710 [ 13.196320][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.196322][ T88] ? lock_acquire+0x13c/0x160 [ 13.196326][ T88] console_flush_one_record+0x46f/0x710 [ 13.196330][ T88] ? console_emit_next_record+0x4c0/0x4c0 [ 13.196331][ T88] ? __lock_acquire+0x518/0xc20 [ 13.196336][ T88] console_unlock+0xee/0x1f0 [ 13.196339][ T88] ? console_flush_one_record+0x710/0x710 [ 13.196340][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.196342][ T88] ? lock_acquire+0x60/0x160 [ 13.196345][ T88] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.196347][ T88] ? vprintk_emit+0x320/0x3e0 [ 13.196350][ T88] vprintk_emit+0x37c/0x3e0 [ 13.196353][ T88] ? wake_up_klogd_work_func+0x90/0x90 [ 13.196357][ T88] ? __lock_acquire+0x518/0xc20 [ 13.196360][ T88] _printk+0xc7/0x100 [ 13.196364][ T88] ? snapshot_read.cold+0x21/0x21 [ 13.196366][ T88] ? do_raw_spin_lock+0x131/0x280 [ 13.196369][ T88] ? __rwlock_init+0x150/0x150 [ 13.196372][ T88] ? do_raw_spin_lock+0x131/0x280 [ 13.196374][ T88] do_exit.cold+0x82/0x9c [ 13.196379][ T88] ? exit_notify+0x890/0x890 [ 13.196380][ T88] ? __lock_release.isra.0+0x69/0x1a0 [ 13.196383][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.196387][ T88] do_group_exit+0xb8/0x370 [ 13.196390][ T88] __x64_sys_exit_group+0x3c/0x50 [ 13.196392][ T88] x64_sys_call+0x1567/0x1570 [ 13.196395][ T88] do_syscall_64+0xff/0x530 [ 13.196398][ T88] ? exc_page_fault+0xee/0x100 [ 13.196401][ T88] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.196403][ T88] RIP: 0033:0x7fdef52341b8 [ 13.196405][ T88] Code: Unable to access opcode bytes at 0x7fdef523418e. [ 13.196406][ T88] RSP: 002b:00007fff159a0d48 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.196409][ T88] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdef52341b8 [ 13.196410][ T88] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.196411][ T88] RBP: 00007fff159a0ed0 R08: 000055e6eeeffa58 R09: 0000000000000000 [ 13.196412][ T88] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 13.196412][ T88] R13: 00007fdef4a92050 R14: 00007fdef5765d9e R15: 000055e6eeef2870 [ 13.196419][ T88]