[ 13.719074][ T85] (udev-worker) (85) used greatest stack depth: 22696 bytes left [ 13.719094][ T85] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.719096][ T85] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 85, name: (udev-worker) [ 13.719098][ T85] preempt_count: 2, expected: 0 [ 13.719099][ T85] RCU nest depth: 0, expected: 0 [ 13.719100][ T85] locks held by (udev-worker)/85: 5, last CPU#0: [ 13.719102][ T85] #0: ffffffffb68027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.719115][ T85] #1: ffffffffb6969cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.719121][ T85] #2: ffffffffb6969d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.719125][ T85] #3: ffffffffb6889660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.719129][ T85] #4: ffffffffb6889560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.719133][ T85] irq event stamp: 480380 [ 13.719134][ T85] hardirqs last enabled at (480379): [] __down_trylock_console_sem+0x86/0xa0 [ 13.719137][ T85] hardirqs last disabled at (480380): [] console_emit_next_record+0x3d4/0x4c0 [ 13.719139][ T85] softirqs last enabled at (480316): [] netlink_release+0x17b/0xcf0 [ 13.719143][ T85] softirqs last disabled at (480314): [] netlink_release+0xd2/0xcf0 [ 13.719145][ T85] Preemption disabled at: [ 13.719146][ T85] [<0000000000000000>] 0x0 [ 13.719154][ T85] CPU: 0 UID: 0 PID: 85 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.719158][ T85] Tainted: [W]=WARN [ 13.719158][ T85] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.719160][ T85] Call Trace: [ 13.719162][ T85] [ 13.719164][ T85] dump_stack_lvl+0x6f/0xa0 [ 13.719170][ T85] __might_resched.cold+0x1fe/0x2c1 [ 13.719175][ T85] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.719179][ T85] ? __kmalloc_noprof+0xdb/0x760 [ 13.719184][ T85] __kmalloc_noprof+0x443/0x760 [ 13.719186][ T85] ? alloc_buf.isra.0+0x4b/0x260 [ 13.719193][ T85] ? do_raw_spin_unlock+0x59/0x250 [ 13.719196][ T85] alloc_buf.isra.0+0x4b/0x260 [ 13.719199][ T85] put_chars+0x1e1/0x2f0 [ 13.719203][ T85] ? __send_to_port+0x420/0x420 [ 13.719205][ T85] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 13.719210][ T85] ? validate_chain+0x38b/0xc20 [ 13.719215][ T85] hvc_console_print+0x292/0x780 [ 13.719223][ T85] ? hvc_write+0x3a0/0x3a0 [ 13.719225][ T85] ? rcu_is_watching+0x16/0xd0 [ 13.719228][ T85] ? lock_acquire+0x13c/0x160 [ 13.719232][ T85] console_emit_next_record+0x22f/0x4c0 [ 13.719236][ T85] ? devkmsg_read+0x4b0/0x4b0 [ 13.719238][ T85] ? console_flush_one_record+0x106/0x710 [ 13.719241][ T85] ? rcu_is_watching+0x16/0xd0 [ 13.719244][ T85] ? lock_acquire+0x13c/0x160 [ 13.719248][ T85] console_flush_one_record+0x46f/0x710 [ 13.719252][ T85] ? console_emit_next_record+0x4c0/0x4c0 [ 13.719254][ T85] ? __lock_acquire+0x518/0xc20 [ 13.719259][ T85] console_unlock+0xee/0x1f0 [ 13.719262][ T85] ? console_flush_one_record+0x710/0x710 [ 13.719263][ T85] ? rcu_is_watching+0x16/0xd0 [ 13.719265][ T85] ? lock_acquire+0x60/0x160 [ 13.719269][ T85] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.719270][ T85] ? vprintk_emit+0x320/0x3e0 [ 13.719273][ T85] vprintk_emit+0x37c/0x3e0 [ 13.719277][ T85] ? wake_up_klogd_work_func+0x90/0x90 [ 13.719280][ T85] ? __lock_acquire+0x518/0xc20 [ 13.719284][ T85] _printk+0xc7/0x100 [ 13.719288][ T85] ? snapshot_read.cold+0x21/0x21 [ 13.719290][ T85] ? do_raw_spin_lock+0x131/0x280 [ 13.719293][ T85] ? __rwlock_init+0x150/0x150 [ 13.719296][ T85] ? do_raw_spin_lock+0x131/0x280 [ 13.719299][ T85] do_exit.cold+0x82/0x9c [ 13.719303][ T85] ? exit_notify+0x890/0x890 [ 13.719306][ T85] ? __lock_release.isra.0+0x69/0x1a0 [ 13.719310][ T85] ? rcu_is_watching+0x16/0xd0 [ 13.719315][ T85] do_group_exit+0xb8/0x370 [ 13.719319][ T85] __x64_sys_exit_group+0x3c/0x50 [ 13.719321][ T85] x64_sys_call+0x1567/0x1570 [ 13.719323][ T85] do_syscall_64+0xff/0x530 [ 13.719327][ T85] ? exc_page_fault+0xee/0x100 [ 13.719330][ T85] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.719333][ T85] RIP: 0033:0x7f98a41611b8 [ 13.719335][ T85] Code: Unable to access opcode bytes at 0x7f98a416118e. [ 13.719336][ T85] RSP: 002b:00007fff7233b968 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.719339][ T85] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f98a41611b8 [ 13.719340][ T85] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.719341][ T85] RBP: 00007fff7233baf0 R08: 0000560408156e58 R09: 0000000000000000 [ 13.719342][ T85] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 13.719343][ T85] R13: 00007f98a39bf050 R14: 00007f98a4692d9e R15: 0000560408153e20 [ 13.719350][ T85]