[ 15.472495][ T187] (udev-worker) (187) used greatest stack depth: 22696 bytes left [ 15.472514][ T187] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 15.472517][ T187] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 187, name: (udev-worker) [ 15.472518][ T187] preempt_count: 2, expected: 0 [ 15.472519][ T187] RCU nest depth: 0, expected: 0 [ 15.472520][ T187] locks held by (udev-worker)/187: 5, last CPU#2: [ 15.472522][ T187] #0: ffffffffb2c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 15.472534][ T187] #1: ffffffffb2d99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 15.472539][ T187] #2: ffffffffb2d99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 15.472543][ T187] #3: ffffffffb2c89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 15.472549][ T187] #4: ffffffffb2c89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 15.472553][ T187] irq event stamp: 422862 [ 15.472554][ T187] hardirqs last enabled at (422861): [] __down_trylock_console_sem+0x86/0xa0 [ 15.472557][ T187] hardirqs last disabled at (422862): [] console_emit_next_record+0x3f8/0x4f0 [ 15.472559][ T187] softirqs last enabled at (422798): [] netlink_release+0x17b/0xcf0 [ 15.472563][ T187] softirqs last disabled at (422796): [] netlink_release+0xd2/0xcf0 [ 15.472566][ T187] Preemption disabled at: [ 15.472567][ T187] [<0000000000000000>] 0x0 [ 15.472574][ T187] CPU: 2 UID: 0 PID: 187 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 15.472577][ T187] Tainted: [W]=WARN [ 15.472578][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.472580][ T187] Call Trace: [ 15.472581][ T187] [ 15.472583][ T187] dump_stack_lvl+0x6f/0xa0 [ 15.472589][ T187] __might_resched.cold+0x1fe/0x2c1 [ 15.472593][ T187] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 15.472597][ T187] ? __kmalloc_noprof+0xdb/0x760 [ 15.472603][ T187] __kmalloc_noprof+0x443/0x760 [ 15.472606][ T187] ? alloc_buf.isra.0+0x4b/0x260 [ 15.472612][ T187] ? do_raw_spin_unlock+0x59/0x250 [ 15.472615][ T187] alloc_buf.isra.0+0x4b/0x260 [ 15.472618][ T187] put_chars+0x1e1/0x2f0 [ 15.472621][ T187] ? __send_to_port+0x420/0x420 [ 15.472623][ T187] ? printk_get_next_message+0x2fe/0x7d0 [ 15.472627][ T187] ? rcu_read_lock_any_held+0x3c/0x90 [ 15.472630][ T187] ? validate_chain+0x38b/0xc20 [ 15.472635][ T187] hvc_console_print+0x292/0x780 [ 15.472638][ T187] ? __lock_acquire+0x518/0xc20 [ 15.472640][ T187] ? __lock_acquire+0x518/0xc20 [ 15.472644][ T187] ? hvc_write+0x3a0/0x3a0 [ 15.472648][ T187] ? rcu_is_watching+0x16/0xd0 [ 15.472650][ T187] ? lock_acquire+0x13c/0x160 [ 15.472654][ T187] console_emit_next_record+0x252/0x4f0 [ 15.472658][ T187] ? devkmsg_read+0x4e0/0x4e0 [ 15.472662][ T187] ? rcu_is_watching+0x16/0xd0 [ 15.472664][ T187] ? lock_acquire+0x13c/0x160 [ 15.472668][ T187] console_flush_one_record+0x46f/0x710 [ 15.472672][ T187] ? console_emit_next_record+0x4f0/0x4f0 [ 15.472674][ T187] ? __lock_acquire+0x518/0xc20 [ 15.472679][ T187] console_unlock+0xee/0x1f0 [ 15.472682][ T187] ? console_flush_one_record+0x710/0x710 [ 15.472684][ T187] ? rcu_is_watching+0x16/0xd0 [ 15.472686][ T187] ? lock_acquire+0x60/0x160 [ 15.472690][ T187] ? __down_trylock_console_sem+0x5e/0xa0 [ 15.472692][ T187] ? vprintk_emit+0x320/0x3e0 [ 15.472694][ T187] vprintk_emit+0x37c/0x3e0 [ 15.472697][ T187] ? wake_up_klogd_work_func+0x90/0x90 [ 15.472700][ T187] ? __lock_acquire+0x518/0xc20 [ 15.472704][ T187] _printk+0xc7/0x100 [ 15.472707][ T187] ? snapshot_read.cold+0x21/0x21 [ 15.472710][ T187] ? do_raw_spin_lock+0x131/0x280 [ 15.472713][ T187] ? __rwlock_init+0x150/0x150 [ 15.472717][ T187] ? do_raw_spin_lock+0x131/0x280 [ 15.472720][ T187] do_exit.cold+0x82/0x9c [ 15.472724][ T187] ? exit_notify+0x890/0x890 [ 15.472725][ T187] ? __lock_release.isra.0+0x69/0x1a0 [ 15.472728][ T187] ? rcu_is_watching+0x16/0xd0 [ 15.472731][ T187] do_group_exit+0xb8/0x370 [ 15.472734][ T187] __x64_sys_exit_group+0x3c/0x50 [ 15.472736][ T187] x64_sys_call+0x1567/0x1570 [ 15.472738][ T187] do_syscall_64+0xff/0x530 [ 15.472742][ T187] ? exc_page_fault+0xee/0x100 [ 15.472745][ T187] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 15.472747][ T187] RIP: 0033:0x7eff422661b8 [ 15.472749][ T187] Code: Unable to access opcode bytes at 0x7eff4226618e. [ 15.472750][ T187] RSP: 002b:00007ffccecfafc8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 15.472753][ T187] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007eff422661b8 [ 15.472754][ T187] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 15.472755][ T187] RBP: 00007ffccecfb150 R08: 0000561e55477488 R09: 0000000000000000 [ 15.472756][ T187] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 15.472757][ T187] R13: 00007eff41ac4050 R14: 00007eff42797d9e R15: 0000561e55467270 [ 15.472763][ T187]