[ 11.179514][ T81] (udev-worker) (81) used greatest stack depth: 22696 bytes left [ 11.179532][ T81] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.179534][ T81] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 81, name: (udev-worker) [ 11.179536][ T81] preempt_count: 2, expected: 0 [ 11.179537][ T81] RCU nest depth: 0, expected: 0 [ 11.179538][ T81] locks held by (udev-worker)/81: 5, last CPU#2: [ 11.179540][ T81] #0: ffffffffa88027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.179553][ T81] #1: ffffffffa8999dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.179558][ T81] #2: ffffffffa8999e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.179562][ T81] #3: ffffffffa8889760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.179566][ T81] #4: ffffffffa8889660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 11.179570][ T81] irq event stamp: 384242 [ 11.179571][ T81] hardirqs last enabled at (384241): [] __down_trylock_console_sem+0x86/0xa0 [ 11.179573][ T81] hardirqs last disabled at (384242): [] console_emit_next_record+0x3f8/0x4f0 [ 11.179576][ T81] softirqs last enabled at (384178): [] netlink_release+0x17b/0xcf0 [ 11.179580][ T81] softirqs last disabled at (384176): [] netlink_release+0xd2/0xcf0 [ 11.179583][ T81] Preemption disabled at: [ 11.179583][ T81] [<0000000000000000>] 0x0 [ 11.179590][ T81] CPU: 2 UID: 0 PID: 81 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.179594][ T81] Tainted: [W]=WARN [ 11.179595][ T81] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.179596][ T81] Call Trace: [ 11.179598][ T81] [ 11.179599][ T81] dump_stack_lvl+0x6f/0xa0 [ 11.179605][ T81] __might_resched.cold+0x1fe/0x2c1 [ 11.179610][ T81] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.179614][ T81] ? __kmalloc_noprof+0xdb/0x760 [ 11.179619][ T81] __kmalloc_noprof+0x443/0x760 [ 11.179622][ T81] ? alloc_buf.isra.0+0x4b/0x260 [ 11.179628][ T81] ? do_raw_spin_unlock+0x59/0x250 [ 11.179630][ T81] alloc_buf.isra.0+0x4b/0x260 [ 11.179634][ T81] put_chars+0x1e1/0x2f0 [ 11.179637][ T81] ? __send_to_port+0x420/0x420 [ 11.179639][ T81] ? printk_get_next_message+0x2fe/0x7d0 [ 11.179643][ T81] ? rcu_read_lock_any_held+0x3c/0x90 [ 11.179646][ T81] ? validate_chain+0x38b/0xc20 [ 11.179650][ T81] hvc_console_print+0x292/0x780 [ 11.179654][ T81] ? __lock_acquire+0x518/0xc20 [ 11.179655][ T81] ? __lock_acquire+0x518/0xc20 [ 11.179659][ T81] ? hvc_write+0x3a0/0x3a0 [ 11.179663][ T81] ? rcu_is_watching+0x16/0xd0 [ 11.179666][ T81] ? lock_acquire+0x13c/0x160 [ 11.179670][ T81] console_emit_next_record+0x252/0x4f0 [ 11.179674][ T81] ? devkmsg_read+0x4e0/0x4e0 [ 11.179678][ T81] ? rcu_is_watching+0x16/0xd0 [ 11.179680][ T81] ? lock_acquire+0x13c/0x160 [ 11.179684][ T81] console_flush_one_record+0x46f/0x710 [ 11.179688][ T81] ? console_emit_next_record+0x4f0/0x4f0 [ 11.179690][ T81] ? __lock_acquire+0x518/0xc20 [ 11.179694][ T81] console_unlock+0xee/0x1f0 [ 11.179697][ T81] ? console_flush_one_record+0x710/0x710 [ 11.179699][ T81] ? rcu_is_watching+0x16/0xd0 [ 11.179701][ T81] ? lock_acquire+0xa0/0x160 [ 11.179705][ T81] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.179706][ T81] ? vprintk_emit+0x320/0x3e0 [ 11.179709][ T81] vprintk_emit+0x37c/0x3e0 [ 11.179713][ T81] ? wake_up_klogd_work_func+0x90/0x90 [ 11.179716][ T81] ? __lock_acquire+0x518/0xc20 [ 11.179720][ T81] _printk+0xc7/0x100 [ 11.179723][ T81] ? snapshot_read.cold+0x21/0x21 [ 11.179726][ T81] ? do_raw_spin_lock+0x131/0x280 [ 11.179729][ T81] ? __rwlock_init+0x150/0x150 [ 11.179732][ T81] ? do_raw_spin_lock+0x131/0x280 [ 11.179735][ T81] do_exit.cold+0x82/0x9c [ 11.179739][ T81] ? exit_notify+0x890/0x890 [ 11.179740][ T81] ? __lock_release.isra.0+0x69/0x1a0 [ 11.179742][ T81] ? rcu_is_watching+0x16/0xd0 [ 11.179751][ T81] do_group_exit+0xb8/0x370 [ 11.179753][ T81] __x64_sys_exit_group+0x3c/0x50 [ 11.179755][ T81] x64_sys_call+0x1567/0x1570 [ 11.179757][ T81] do_syscall_64+0xff/0x530 [ 11.179761][ T81] ? exc_page_fault+0xee/0x100 [ 11.179764][ T81] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.179766][ T81] RIP: 0033:0x7f854b9671b8 [ 11.179768][ T81] Code: Unable to access opcode bytes at 0x7f854b96718e. [ 11.179769][ T81] RSP: 002b:00007ffe729143b8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 11.179772][ T81] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f854b9671b8 [ 11.179773][ T81] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 11.179774][ T81] RBP: 00007ffe72914540 R08: 000055fca7192238 R09: 0000000000000000 [ 11.179775][ T81] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 11.179775][ T81] R13: 00007f854b1c5050 R14: 00007f854be98d9e R15: 000055fca72c86f0 [ 11.179782][ T81]