[ 15.060077][ T86] (udev-worker) (86) used greatest stack depth: 22696 bytes left [ 15.060092][ T86] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 15.060094][ T86] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 86, name: (udev-worker) [ 15.060096][ T86] preempt_count: 2, expected: 0 [ 15.060097][ T86] RCU nest depth: 0, expected: 0 [ 15.060098][ T86] locks held by (udev-worker)/86: 5, last CPU#0: [ 15.060099][ T86] #0: ffffffff89a167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 15.060110][ T86] #1: ffffffff89b7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 15.060115][ T86] #2: ffffffff89b7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 15.060120][ T86] #3: ffffffff89a9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 15.060124][ T86] #4: ffffffff89a9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 15.060128][ T86] irq event stamp: 382986 [ 15.060128][ T86] hardirqs last enabled at (382985): [] __down_trylock_console_sem+0x86/0xa0 [ 15.060132][ T86] hardirqs last disabled at (382986): [] console_emit_next_record+0x3d4/0x4c0 [ 15.060134][ T86] softirqs last enabled at (382916): [] netlink_release+0x17b/0xcf0 [ 15.060138][ T86] softirqs last disabled at (382914): [] netlink_release+0xd2/0xcf0 [ 15.060140][ T86] Preemption disabled at: [ 15.060141][ T86] [<0000000000000000>] 0x0 [ 15.060147][ T86] CPU: 0 UID: 0 PID: 86 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 15.060151][ T86] Tainted: [W]=WARN [ 15.060152][ T86] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.060153][ T86] Call Trace: [ 15.060155][ T86] [ 15.060156][ T86] dump_stack_lvl+0x6f/0xa0 [ 15.060163][ T86] __might_resched.cold+0x1fe/0x2c1 [ 15.060167][ T86] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 15.060171][ T86] ? __kmalloc_noprof+0xdb/0x760 [ 15.060176][ T86] __kmalloc_noprof+0x443/0x760 [ 15.060177][ T86] ? alloc_buf.isra.0+0x4b/0x260 [ 15.060184][ T86] ? do_raw_spin_unlock+0x59/0x250 [ 15.060187][ T86] alloc_buf.isra.0+0x4b/0x260 [ 15.060190][ T86] put_chars+0x1e1/0x2f0 [ 15.060193][ T86] ? __send_to_port+0x420/0x420 [ 15.060194][ T86] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 15.060197][ T86] ? validate_chain+0x38b/0xc20 [ 15.060203][ T86] hvc_console_print+0x292/0x780 [ 15.060211][ T86] ? hvc_write+0x3a0/0x3a0 [ 15.060213][ T86] ? rcu_is_watching+0x16/0xd0 [ 15.060215][ T86] ? lock_acquire+0x13c/0x160 [ 15.060219][ T86] console_emit_next_record+0x22f/0x4c0 [ 15.060224][ T86] ? devkmsg_read+0x4b0/0x4b0 [ 15.060226][ T86] ? console_flush_one_record+0x106/0x710 [ 15.060229][ T86] ? rcu_is_watching+0x16/0xd0 [ 15.060230][ T86] ? lock_acquire+0x13c/0x160 [ 15.060234][ T86] console_flush_one_record+0x46f/0x710 [ 15.060238][ T86] ? console_emit_next_record+0x4c0/0x4c0 [ 15.060240][ T86] ? __lock_acquire+0x518/0xc20 [ 15.060246][ T86] console_unlock+0xee/0x1f0 [ 15.060248][ T86] ? console_flush_one_record+0x710/0x710 [ 15.060250][ T86] ? rcu_is_watching+0x16/0xd0 [ 15.060254][ T86] ? lock_acquire+0xe0/0x160 [ 15.060258][ T86] ? __down_trylock_console_sem+0x5e/0xa0 [ 15.060260][ T86] ? vprintk_emit+0x320/0x3e0 [ 15.060262][ T86] vprintk_emit+0x37c/0x3e0 [ 15.060265][ T86] ? wake_up_klogd_work_func+0x90/0x90 [ 15.060268][ T86] ? __lock_acquire+0x518/0xc20 [ 15.060272][ T86] _printk+0xc7/0x100 [ 15.060275][ T86] ? snapshot_read.cold+0x21/0x21 [ 15.060278][ T86] ? do_raw_spin_lock+0x131/0x280 [ 15.060281][ T86] ? __rwlock_init+0x150/0x150 [ 15.060284][ T86] ? do_raw_spin_lock+0x131/0x280 [ 15.060287][ T86] do_exit.cold+0x82/0x9c [ 15.060291][ T86] ? exit_notify+0x890/0x890 [ 15.060292][ T86] ? __lock_release.isra.0+0x69/0x1a0 [ 15.060295][ T86] ? rcu_is_watching+0x16/0xd0 [ 15.060298][ T86] do_group_exit+0xb8/0x370 [ 15.060301][ T86] __x64_sys_exit_group+0x3c/0x50 [ 15.060303][ T86] x64_sys_call+0x1567/0x1570 [ 15.060305][ T86] do_syscall_64+0xff/0x530 [ 15.060309][ T86] ? exc_page_fault+0xee/0x100 [ 15.060312][ T86] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 15.060314][ T86] RIP: 0033:0x7f3101dd71b8 [ 15.060316][ T86] Code: Unable to access opcode bytes at 0x7f3101dd718e. [ 15.060317][ T86] RSP: 002b:00007fff87496a88 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 15.060320][ T86] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3101dd71b8 [ 15.060321][ T86] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 15.060322][ T86] RBP: 00007fff87496c10 R08: 00005620b53fd3c8 R09: 0000000000000000 [ 15.060322][ T86] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 15.060323][ T86] R13: 00007f3101635050 R14: 00007f3102308d9e R15: 00005620b53ff490 [ 15.060330][ T86]