[ 14.078080][ T83] (udev-worker) (83) used greatest stack depth: 22696 bytes left [ 14.078100][ T83] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.078102][ T83] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 83, name: (udev-worker) [ 14.078103][ T83] preempt_count: 2, expected: 0 [ 14.078104][ T83] RCU nest depth: 0, expected: 0 [ 14.078105][ T83] locks held by (udev-worker)/83: 5, last CPU#2: [ 14.078108][ T83] #0: ffffffffa46027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.078120][ T83] #1: ffffffffa4769cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.078126][ T83] #2: ffffffffa4769d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.078129][ T83] #3: ffffffffa4689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.078133][ T83] #4: ffffffffa4689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 14.078136][ T83] irq event stamp: 479344 [ 14.078137][ T83] hardirqs last enabled at (479343): [] __down_trylock_console_sem+0x86/0xa0 [ 14.078140][ T83] hardirqs last disabled at (479344): [] console_emit_next_record+0x3d4/0x4c0 [ 14.078141][ T83] softirqs last enabled at (479280): [] netlink_release+0x17b/0xcf0 [ 14.078145][ T83] softirqs last disabled at (479278): [] netlink_release+0xd2/0xcf0 [ 14.078147][ T83] Preemption disabled at: [ 14.078148][ T83] [<0000000000000000>] 0x0 [ 14.078155][ T83] CPU: 2 UID: 0 PID: 83 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.078159][ T83] Tainted: [W]=WARN [ 14.078160][ T83] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.078161][ T83] Call Trace: [ 14.078163][ T83] [ 14.078165][ T83] dump_stack_lvl+0x6f/0xa0 [ 14.078171][ T83] __might_resched.cold+0x1fe/0x2c1 [ 14.078175][ T83] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.078179][ T83] ? __kmalloc_noprof+0xdb/0x760 [ 14.078184][ T83] __kmalloc_noprof+0x443/0x760 [ 14.078186][ T83] ? alloc_buf.isra.0+0x4b/0x260 [ 14.078192][ T83] ? do_raw_spin_unlock+0x59/0x250 [ 14.078195][ T83] alloc_buf.isra.0+0x4b/0x260 [ 14.078198][ T83] put_chars+0x1e1/0x2f0 [ 14.078201][ T83] ? __send_to_port+0x420/0x420 [ 14.078203][ T83] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 14.078208][ T83] ? validate_chain+0x38b/0xc20 [ 14.078212][ T83] hvc_console_print+0x292/0x780 [ 14.078219][ T83] ? hvc_write+0x3a0/0x3a0 [ 14.078222][ T83] ? rcu_is_watching+0x16/0xd0 [ 14.078224][ T83] ? lock_acquire+0x13c/0x160 [ 14.078228][ T83] console_emit_next_record+0x22f/0x4c0 [ 14.078231][ T83] ? devkmsg_read+0x4b0/0x4b0 [ 14.078233][ T83] ? console_flush_one_record+0x106/0x710 [ 14.078236][ T83] ? rcu_is_watching+0x16/0xd0 [ 14.078238][ T83] ? lock_acquire+0x13c/0x160 [ 14.078242][ T83] console_flush_one_record+0x46f/0x710 [ 14.078245][ T83] ? console_emit_next_record+0x4c0/0x4c0 [ 14.078247][ T83] ? __lock_acquire+0x518/0xc20 [ 14.078252][ T83] console_unlock+0xee/0x1f0 [ 14.078254][ T83] ? console_flush_one_record+0x710/0x710 [ 14.078256][ T83] ? rcu_is_watching+0x16/0xd0 [ 14.078258][ T83] ? lock_acquire+0x60/0x160 [ 14.078261][ T83] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.078263][ T83] ? vprintk_emit+0x320/0x3e0 [ 14.078266][ T83] vprintk_emit+0x37c/0x3e0 [ 14.078269][ T83] ? wake_up_klogd_work_func+0x90/0x90 [ 14.078273][ T83] ? __lock_acquire+0x518/0xc20 [ 14.078276][ T83] _printk+0xc7/0x100 [ 14.078279][ T83] ? snapshot_read.cold+0x21/0x21 [ 14.078282][ T83] ? do_raw_spin_lock+0x131/0x280 [ 14.078285][ T83] ? __rwlock_init+0x150/0x150 [ 14.078288][ T83] ? do_raw_spin_lock+0x131/0x280 [ 14.078291][ T83] do_exit.cold+0x82/0x9c [ 14.078295][ T83] ? exit_notify+0x890/0x890 [ 14.078296][ T83] ? __lock_release.isra.0+0x69/0x1a0 [ 14.078299][ T83] ? rcu_is_watching+0x16/0xd0 [ 14.078302][ T83] do_group_exit+0xb8/0x370 [ 14.078306][ T83] __x64_sys_exit_group+0x3c/0x50 [ 14.078308][ T83] x64_sys_call+0x1567/0x1570 [ 14.078310][ T83] do_syscall_64+0xff/0x530 [ 14.078314][ T83] ? exc_page_fault+0xee/0x100 [ 14.078317][ T83] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.078319][ T83] RIP: 0033:0x7ff0c13bd1b8 [ 14.078321][ T83] Code: Unable to access opcode bytes at 0x7ff0c13bd18e. [ 14.078323][ T83] RSP: 002b:00007ffe0c09beb8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.078325][ T83] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff0c13bd1b8 [ 14.078326][ T83] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.078327][ T83] RBP: 00007ffe0c09c040 R08: 0000564901d90e58 R09: 0000000000000000 [ 14.078328][ T83] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.078329][ T83] R13: 00007ff0c0c1b050 R14: 00007ff0c18eed9e R15: 0000564901ec7690 [ 14.078335][ T83]