[ 14.824618][ T88] (udev-worker) (88) used greatest stack depth: 22696 bytes left [ 14.824635][ T88] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.824637][ T88] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 88, name: (udev-worker) [ 14.824638][ T88] preempt_count: 2, expected: 0 [ 14.824639][ T88] RCU nest depth: 0, expected: 0 [ 14.824640][ T88] locks held by (udev-worker)/88: 5, last CPU#0: [ 14.824642][ T88] #0: ffffffff94a027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.824654][ T88] #1: ffffffff94b99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.824659][ T88] #2: ffffffff94b99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.824663][ T88] #3: ffffffff94a89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.824666][ T88] #4: ffffffff94a89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 14.824670][ T88] irq event stamp: 415530 [ 14.824670][ T88] hardirqs last enabled at (415529): [] __down_trylock_console_sem+0x86/0xa0 [ 14.824673][ T88] hardirqs last disabled at (415530): [] console_emit_next_record+0x3f8/0x4f0 [ 14.824674][ T88] softirqs last enabled at (415466): [] netlink_release+0x17b/0xcf0 [ 14.824678][ T88] softirqs last disabled at (415464): [] netlink_release+0xd2/0xcf0 [ 14.824681][ T88] Preemption disabled at: [ 14.824682][ T88] [<0000000000000000>] 0x0 [ 14.824688][ T88] CPU: 0 UID: 0 PID: 88 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.824691][ T88] Tainted: [W]=WARN [ 14.824692][ T88] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.824694][ T88] Call Trace: [ 14.824696][ T88] [ 14.824697][ T88] dump_stack_lvl+0x6f/0xa0 [ 14.824703][ T88] __might_resched.cold+0x1fe/0x2c1 [ 14.824707][ T88] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.824711][ T88] ? __kmalloc_noprof+0xdb/0x760 [ 14.824716][ T88] __kmalloc_noprof+0x443/0x760 [ 14.824718][ T88] ? alloc_buf.isra.0+0x4b/0x260 [ 14.824723][ T88] ? do_raw_spin_unlock+0x59/0x250 [ 14.824726][ T88] alloc_buf.isra.0+0x4b/0x260 [ 14.824729][ T88] put_chars+0x1e1/0x2f0 [ 14.824731][ T88] ? __send_to_port+0x420/0x420 [ 14.824733][ T88] ? printk_get_next_message+0x2fe/0x7d0 [ 14.824736][ T88] ? rcu_read_lock_any_held+0x3c/0x90 [ 14.824739][ T88] ? validate_chain+0x38b/0xc20 [ 14.824743][ T88] hvc_console_print+0x292/0x780 [ 14.824746][ T88] ? __lock_acquire+0x518/0xc20 [ 14.824747][ T88] ? __lock_acquire+0x518/0xc20 [ 14.824751][ T88] ? hvc_write+0x3a0/0x3a0 [ 14.824754][ T88] ? rcu_is_watching+0x16/0xd0 [ 14.824757][ T88] ? lock_acquire+0x13c/0x160 [ 14.824760][ T88] console_emit_next_record+0x252/0x4f0 [ 14.824764][ T88] ? devkmsg_read+0x4e0/0x4e0 [ 14.824768][ T88] ? rcu_is_watching+0x16/0xd0 [ 14.824770][ T88] ? lock_acquire+0x13c/0x160 [ 14.824773][ T88] console_flush_one_record+0x46f/0x710 [ 14.824777][ T88] ? console_emit_next_record+0x4f0/0x4f0 [ 14.824779][ T88] ? __lock_acquire+0x518/0xc20 [ 14.824783][ T88] console_unlock+0xee/0x1f0 [ 14.824786][ T88] ? console_flush_one_record+0x710/0x710 [ 14.824787][ T88] ? rcu_is_watching+0x16/0xd0 [ 14.824789][ T88] ? lock_acquire+0x60/0x160 [ 14.824792][ T88] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.824794][ T88] ? vprintk_emit+0x320/0x3e0 [ 14.824797][ T88] vprintk_emit+0x37c/0x3e0 [ 14.824800][ T88] ? wake_up_klogd_work_func+0x90/0x90 [ 14.824803][ T88] ? __lock_acquire+0x518/0xc20 [ 14.824806][ T88] _printk+0xc7/0x100 [ 14.824810][ T88] ? snapshot_read.cold+0x21/0x21 [ 14.824813][ T88] ? do_raw_spin_lock+0x131/0x280 [ 14.824815][ T88] ? __rwlock_init+0x150/0x150 [ 14.824818][ T88] ? do_raw_spin_lock+0x131/0x280 [ 14.824821][ T88] do_exit.cold+0x82/0x9c [ 14.824824][ T88] ? exit_notify+0x890/0x890 [ 14.824826][ T88] ? __lock_release.isra.0+0x69/0x1a0 [ 14.824828][ T88] ? rcu_is_watching+0x16/0xd0 [ 14.824832][ T88] do_group_exit+0xb8/0x370 [ 14.824835][ T88] __x64_sys_exit_group+0x3c/0x50 [ 14.824837][ T88] x64_sys_call+0x1567/0x1570 [ 14.824840][ T88] do_syscall_64+0xff/0x530 [ 14.824843][ T88] ? irq_exit_rcu+0x1a/0x30 [ 14.824846][ T88] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.824848][ T88] RIP: 0033:0x7f72b01ce1b8 [ 14.824850][ T88] Code: Unable to access opcode bytes at 0x7f72b01ce18e. [ 14.824851][ T88] RSP: 002b:00007ffcccc12c68 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.824854][ T88] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f72b01ce1b8 [ 14.824855][ T88] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.824856][ T88] RBP: 00007ffcccc12df0 R08: 000055ada3f0ebf8 R09: 0000000000000000 [ 14.824857][ T88] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.824858][ T88] R13: 00007f72afa2c050 R14: 00007f72b06ffd9e R15: 000055ada3daf790 [ 14.824864][ T88]