[ 14.674444][ T88] (udev-worker) (88) used greatest stack depth: 22696 bytes left [ 14.674464][ T88] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.674467][ T88] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 88, name: (udev-worker) [ 14.674468][ T88] preempt_count: 2, expected: 0 [ 14.674469][ T88] RCU nest depth: 0, expected: 0 [ 14.674470][ T88] locks held by (udev-worker)/88: 5, last CPU#0: [ 14.674473][ T88] #0: ffffffff87a027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.674486][ T88] #1: ffffffff87b69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.674492][ T88] #2: ffffffff87b69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.674496][ T88] #3: ffffffff87a89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.674500][ T88] #4: ffffffff87a89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 14.674504][ T88] irq event stamp: 474184 [ 14.674505][ T88] hardirqs last enabled at (474183): [] __down_trylock_console_sem+0x86/0xa0 [ 14.674507][ T88] hardirqs last disabled at (474184): [] console_emit_next_record+0x3d4/0x4c0 [ 14.674509][ T88] softirqs last enabled at (474120): [] netlink_release+0x17b/0xcf0 [ 14.674513][ T88] softirqs last disabled at (474118): [] netlink_release+0xd2/0xcf0 [ 14.674516][ T88] Preemption disabled at: [ 14.674516][ T88] [<0000000000000000>] 0x0 [ 14.674523][ T88] CPU: 0 UID: 0 PID: 88 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.674527][ T88] Tainted: [W]=WARN [ 14.674528][ T88] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.674530][ T88] Call Trace: [ 14.674532][ T88] [ 14.674533][ T88] dump_stack_lvl+0x6f/0xa0 [ 14.674540][ T88] __might_resched.cold+0x1fe/0x2c1 [ 14.674544][ T88] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.674548][ T88] ? __kmalloc_noprof+0xdb/0x760 [ 14.674553][ T88] __kmalloc_noprof+0x443/0x760 [ 14.674556][ T88] ? alloc_buf.isra.0+0x4b/0x260 [ 14.674563][ T88] ? do_raw_spin_unlock+0x59/0x250 [ 14.674566][ T88] alloc_buf.isra.0+0x4b/0x260 [ 14.674570][ T88] put_chars+0x1e1/0x2f0 [ 14.674574][ T88] ? __send_to_port+0x420/0x420 [ 14.674576][ T88] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 14.674580][ T88] ? validate_chain+0x38b/0xc20 [ 14.674586][ T88] hvc_console_print+0x292/0x780 [ 14.674593][ T88] ? hvc_write+0x3a0/0x3a0 [ 14.674596][ T88] ? rcu_is_watching+0x16/0xd0 [ 14.674599][ T88] ? lock_acquire+0x13c/0x160 [ 14.674603][ T88] console_emit_next_record+0x22f/0x4c0 [ 14.674606][ T88] ? devkmsg_read+0x4b0/0x4b0 [ 14.674608][ T88] ? console_flush_one_record+0x106/0x710 [ 14.674611][ T88] ? rcu_is_watching+0x16/0xd0 [ 14.674613][ T88] ? lock_acquire+0x13c/0x160 [ 14.674617][ T88] console_flush_one_record+0x46f/0x710 [ 14.674621][ T88] ? console_emit_next_record+0x4c0/0x4c0 [ 14.674623][ T88] ? __lock_acquire+0x518/0xc20 [ 14.674629][ T88] console_unlock+0xee/0x1f0 [ 14.674632][ T88] ? console_flush_one_record+0x710/0x710 [ 14.674633][ T88] ? rcu_is_watching+0x16/0xd0 [ 14.674636][ T88] ? lock_acquire+0x60/0x160 [ 14.674639][ T88] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.674640][ T88] ? vprintk_emit+0x320/0x3e0 [ 14.674644][ T88] vprintk_emit+0x37c/0x3e0 [ 14.674647][ T88] ? wake_up_klogd_work_func+0x90/0x90 [ 14.674651][ T88] ? __lock_acquire+0x518/0xc20 [ 14.674654][ T88] _printk+0xc7/0x100 [ 14.674657][ T88] ? snapshot_read.cold+0x21/0x21 [ 14.674660][ T88] ? do_raw_spin_lock+0x131/0x280 [ 14.674663][ T88] ? __rwlock_init+0x150/0x150 [ 14.674666][ T88] ? do_raw_spin_lock+0x131/0x280 [ 14.674669][ T88] do_exit.cold+0x82/0x9c [ 14.674673][ T88] ? exit_notify+0x890/0x890 [ 14.674675][ T88] ? __lock_release.isra.0+0x69/0x1a0 [ 14.674677][ T88] ? rcu_is_watching+0x16/0xd0 [ 14.674681][ T88] do_group_exit+0xb8/0x370 [ 14.674684][ T88] __x64_sys_exit_group+0x3c/0x50 [ 14.674687][ T88] x64_sys_call+0x1567/0x1570 [ 14.674689][ T88] do_syscall_64+0xff/0x530 [ 14.674693][ T88] ? exc_page_fault+0xee/0x100 [ 14.674695][ T88] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.674698][ T88] RIP: 0033:0x7f43d094f1b8 [ 14.674700][ T88] Code: Unable to access opcode bytes at 0x7f43d094f18e. [ 14.674702][ T88] RSP: 002b:00007fff0c471db8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.674704][ T88] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f43d094f1b8 [ 14.674705][ T88] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.674706][ T88] RBP: 00007fff0c471f40 R08: 000055b58b8386d8 R09: 0000000000000000 [ 14.674707][ T88] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.674708][ T88] R13: 00007f43d01ad050 R14: 00007f43d0e80d9e R15: 000055b58b6de7f0 [ 14.674715][ T88]