[ 14.861017][ T185] (udev-worker) (185) used greatest stack depth: 22696 bytes left [ 14.861038][ T185] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.861040][ T185] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 185, name: (udev-worker) [ 14.861042][ T185] preempt_count: 2, expected: 0 [ 14.861043][ T185] RCU nest depth: 0, expected: 0 [ 14.861044][ T185] locks held by (udev-worker)/185: 5, last CPU#0: [ 14.861046][ T185] #0: ffffffffbba027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.861058][ T185] #1: ffffffffbbb99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.861063][ T185] #2: ffffffffbbb99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.861068][ T185] #3: ffffffffbba89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.861072][ T185] #4: ffffffffbba89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 14.861076][ T185] irq event stamp: 92402 [ 14.861077][ T185] hardirqs last enabled at (92401): [] __down_trylock_console_sem+0x86/0xa0 [ 14.861080][ T185] hardirqs last disabled at (92402): [] console_emit_next_record+0x3f8/0x4f0 [ 14.861082][ T185] softirqs last enabled at (92338): [] netlink_release+0x17b/0xcf0 [ 14.861087][ T185] softirqs last disabled at (92336): [] netlink_release+0xd2/0xcf0 [ 14.861089][ T185] Preemption disabled at: [ 14.861090][ T185] [<0000000000000000>] 0x0 [ 14.861097][ T185] CPU: 0 UID: 0 PID: 185 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.861101][ T185] Tainted: [W]=WARN [ 14.861102][ T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.861104][ T185] Call Trace: [ 14.861105][ T185] [ 14.861107][ T185] dump_stack_lvl+0x6f/0xa0 [ 14.861114][ T185] __might_resched.cold+0x1fe/0x2c1 [ 14.861118][ T185] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.861123][ T185] ? __kmalloc_noprof+0xdb/0x760 [ 14.861128][ T185] __kmalloc_noprof+0x443/0x760 [ 14.861131][ T185] ? alloc_buf.isra.0+0x4b/0x260 [ 14.861138][ T185] ? do_raw_spin_unlock+0x59/0x250 [ 14.861141][ T185] alloc_buf.isra.0+0x4b/0x260 [ 14.861144][ T185] put_chars+0x1e1/0x2f0 [ 14.861147][ T185] ? __send_to_port+0x420/0x420 [ 14.861149][ T185] ? printk_get_next_message+0x2fe/0x7d0 [ 14.861153][ T185] ? rcu_read_lock_any_held+0x3c/0x90 [ 14.861157][ T185] ? validate_chain+0x38b/0xc20 [ 14.861162][ T185] hvc_console_print+0x292/0x780 [ 14.861165][ T185] ? __lock_acquire+0x518/0xc20 [ 14.861167][ T185] ? __lock_acquire+0x518/0xc20 [ 14.861172][ T185] ? hvc_write+0x3a0/0x3a0 [ 14.861175][ T185] ? rcu_is_watching+0x16/0xd0 [ 14.861178][ T185] ? lock_acquire+0x13c/0x160 [ 14.861182][ T185] console_emit_next_record+0x252/0x4f0 [ 14.861186][ T185] ? devkmsg_read+0x4e0/0x4e0 [ 14.861191][ T185] ? rcu_is_watching+0x16/0xd0 [ 14.861193][ T185] ? lock_acquire+0x13c/0x160 [ 14.861197][ T185] console_flush_one_record+0x46f/0x710 [ 14.861202][ T185] ? console_emit_next_record+0x4f0/0x4f0 [ 14.861204][ T185] ? __lock_acquire+0x518/0xc20 [ 14.861209][ T185] console_unlock+0xee/0x1f0 [ 14.861212][ T185] ? console_flush_one_record+0x710/0x710 [ 14.861214][ T185] ? rcu_is_watching+0x16/0xd0 [ 14.861216][ T185] ? lock_acquire+0x60/0x160 [ 14.861220][ T185] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.861222][ T185] ? vprintk_emit+0x320/0x3e0 [ 14.861225][ T185] vprintk_emit+0x37c/0x3e0 [ 14.861228][ T185] ? wake_up_klogd_work_func+0x90/0x90 [ 14.861231][ T185] ? __lock_acquire+0x518/0xc20 [ 14.861235][ T185] _printk+0xc7/0x100 [ 14.861239][ T185] ? snapshot_read.cold+0x21/0x21 [ 14.861242][ T185] ? do_raw_spin_lock+0x131/0x280 [ 14.861245][ T185] ? __rwlock_init+0x150/0x150 [ 14.861249][ T185] ? do_raw_spin_lock+0x131/0x280 [ 14.861252][ T185] do_exit.cold+0x82/0x9c [ 14.861256][ T185] ? exit_notify+0x890/0x890 [ 14.861257][ T185] ? __lock_release.isra.0+0x69/0x1a0 [ 14.861260][ T185] ? rcu_is_watching+0x16/0xd0 [ 14.861264][ T185] do_group_exit+0xb8/0x370 [ 14.861267][ T185] __x64_sys_exit_group+0x3c/0x50 [ 14.861269][ T185] x64_sys_call+0x1567/0x1570 [ 14.861272][ T185] do_syscall_64+0xff/0x530 [ 14.861275][ T185] ? exc_page_fault+0xee/0x100 [ 14.861279][ T185] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.861281][ T185] RIP: 0033:0x7fdb1d5291b8 [ 14.861283][ T185] Code: Unable to access opcode bytes at 0x7fdb1d52918e. [ 14.861284][ T185] RSP: 002b:00007ffdfc4908f8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.861287][ T185] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdb1d5291b8 [ 14.861289][ T185] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.861289][ T185] RBP: 00007ffdfc490a80 R08: 000055fe6d3eee88 R09: 0000000000000000 [ 14.861290][ T185] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.861291][ T185] R13: 00007fdb1cd87050 R14: 00007fdb1da5ad9e R15: 000055fe6d275930 [ 14.861298][ T185]