[ 11.881686][ T86] (udev-worker) (86) used greatest stack depth: 22696 bytes left [ 11.881702][ T86] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.881705][ T86] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 86, name: (udev-worker) [ 11.881706][ T86] preempt_count: 2, expected: 0 [ 11.881707][ T86] RCU nest depth: 0, expected: 0 [ 11.881708][ T86] INFO: lockdep is turned off. [ 11.881709][ T86] irq event stamp: 442348 [ 11.881710][ T86] hardirqs last enabled at (442347): [] _raw_spin_unlock_irq+0x28/0x50 [ 11.881720][ T86] hardirqs last disabled at (442348): [] __schedule+0x1246/0x20e0 [ 11.881722][ T86] softirqs last enabled at (442282): [] unix_release_sock+0x446/0xe50 [ 11.881726][ T86] softirqs last disabled at (442280): [] unix_release_sock+0x39f/0xe50 [ 11.881728][ T86] Preemption disabled at: [ 11.881729][ T86] [<0000000000000000>] 0x0 [ 11.881735][ T86] CPU: 2 UID: 0 PID: 86 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.881739][ T86] Tainted: [W]=WARN [ 11.881740][ T86] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.881741][ T86] Call Trace: [ 11.881743][ T86] [ 11.881744][ T86] dump_stack_lvl+0x6f/0xa0 [ 11.881750][ T86] __might_resched.cold+0x1fe/0x2c1 [ 11.881754][ T86] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.881758][ T86] ? rcu_is_watching+0x16/0xd0 [ 11.881762][ T86] __kmalloc_noprof+0x443/0x760 [ 11.881766][ T86] ? __rwlock_init+0x150/0x150 [ 11.881769][ T86] ? alloc_buf.isra.0+0x4b/0x260 [ 11.881774][ T86] ? do_raw_spin_unlock+0x59/0x250 [ 11.881776][ T86] alloc_buf.isra.0+0x4b/0x260 [ 11.881778][ T86] put_chars+0x1e1/0x2f0 [ 11.881781][ T86] ? __send_to_port+0x420/0x420 [ 11.881783][ T86] ? printk_get_next_message+0x2fe/0x7d0 [ 11.881786][ T86] ? console_prepend_replay+0x20/0x20 [ 11.881788][ T86] ? desc_read+0x219/0x2f0 [ 11.881790][ T86] hvc_console_print+0x292/0x780 [ 11.881795][ T86] ? hvc_write+0x3a0/0x3a0 [ 11.881797][ T86] ? __rwlock_init+0x150/0x150 [ 11.881799][ T86] ? rcu_is_watching+0x16/0xd0 [ 11.881800][ T86] ? rcu_is_watching+0x16/0xd0 [ 11.881802][ T86] ? lock_acquire+0x13c/0x160 [ 11.881805][ T86] console_emit_next_record+0x252/0x4f0 [ 11.881807][ T86] ? devkmsg_read+0x4e0/0x4e0 [ 11.881809][ T86] ? _prb_read_valid+0x6e0/0x6e0 [ 11.881811][ T86] ? __asan_memmove+0x3c/0x60 [ 11.881813][ T86] ? rcu_is_watching+0x16/0xd0 [ 11.881815][ T86] ? rcu_is_watching+0x16/0xd0 [ 11.881817][ T86] ? rcu_is_watching+0x16/0xd0 [ 11.881819][ T86] ? lock_acquire+0x13c/0x160 [ 11.881821][ T86] ? console_flush_one_record+0x111/0x710 [ 11.881823][ T86] console_flush_one_record+0x46f/0x710 [ 11.881825][ T86] ? console_emit_next_record+0x4f0/0x4f0 [ 11.881828][ T86] console_unlock+0xee/0x1f0 [ 11.881830][ T86] ? lock_acquire+0x13c/0x160 [ 11.881831][ T86] ? console_flush_one_record+0x710/0x710 [ 11.881833][ T86] ? rcu_is_watching+0x16/0xd0 [ 11.881835][ T86] ? lock_release+0x184/0x1f0 [ 11.881836][ T86] ? lock_acquire+0xa0/0x160 [ 11.881838][ T86] ? sync_exp_reset_tree_hotplug+0x3e0/0x3f0 [ 11.881840][ T86] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.881842][ T86] ? vprintk_emit+0x320/0x3e0 [ 11.881844][ T86] vprintk_emit+0x37c/0x3e0 [ 11.881847][ T86] ? wake_up_klogd_work_func+0x90/0x90 [ 11.881849][ T86] ? do_raw_read_unlock+0x70/0x70 [ 11.881851][ T86] ? forget_original_parent+0x5c/0xdb0 [ 11.881854][ T86] _printk+0xc7/0x100 [ 11.881857][ T86] ? snapshot_read.cold+0x21/0x21 [ 11.881859][ T86] ? do_raw_spin_lock+0x131/0x280 [ 11.881861][ T86] ? do_raw_spin_lock+0x131/0x280 [ 11.881863][ T86] ? __rwlock_init+0x150/0x150 [ 11.881865][ T86] ? do_raw_spin_lock+0x131/0x280 [ 11.881867][ T86] do_exit.cold+0x82/0x9c [ 11.881870][ T86] ? exit_notify+0x890/0x890 [ 11.881871][ T86] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 11.881874][ T86] ? rcu_is_watching+0x16/0xd0 [ 11.881877][ T86] do_group_exit+0xb8/0x370 [ 11.881878][ T86] __x64_sys_exit_group+0x3c/0x50 [ 11.881880][ T86] x64_sys_call+0x1567/0x1570 [ 11.881882][ T86] do_syscall_64+0xff/0x530 [ 11.881884][ T86] ? exc_page_fault+0xee/0x100 [ 11.881887][ T86] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.881889][ T86] RIP: 0033:0x7f30340271b8 [ 11.881891][ T86] Code: Unable to access opcode bytes at 0x7f303402718e. [ 11.881892][ T86] RSP: 002b:00007ffdab7b6828 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 11.881896][ T86] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f30340271b8 [ 11.881898][ T86] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 11.881899][ T86] RBP: 00007ffdab7b69b0 R08: 00005571ccbdd388 R09: 0000000000000000 [ 11.881900][ T86] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 11.881900][ T86] R13: 00007f3033885050 R14: 00007f3034558d9e R15: 00005571ccbe3890 [ 11.881903][ T86]