[ 33.647660][ T203] (udev-worker) (203) used greatest stack depth: 22696 bytes left [ 33.647676][ T203] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 33.647678][ T203] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 203, name: (udev-worker) [ 33.647679][ T203] preempt_count: 2, expected: 0 [ 33.647680][ T203] RCU nest depth: 0, expected: 0 [ 33.647681][ T203] INFO: lockdep is turned off. [ 33.647682][ T203] irq event stamp: 2034144 [ 33.647683][ T203] hardirqs last enabled at (2034143): [] _raw_spin_unlock_irq+0x28/0x50 [ 33.647691][ T203] hardirqs last disabled at (2034144): [] __schedule+0x1246/0x20e0 [ 33.647694][ T203] softirqs last enabled at (2034074): [] unix_release_sock+0x446/0xe60 [ 33.647698][ T203] softirqs last disabled at (2034072): [] unix_release_sock+0x39f/0xe60 [ 33.647700][ T203] Preemption disabled at: [ 33.647700][ T203] [<0000000000000000>] 0x0 [ 33.647706][ T203] CPU: 1 UID: 0 PID: 203 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 33.647709][ T203] Tainted: [W]=WARN [ 33.647710][ T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 33.647712][ T203] Call Trace: [ 33.647713][ T203] [ 33.647714][ T203] dump_stack_lvl+0x6f/0xa0 [ 33.647720][ T203] __might_resched.cold+0x1fe/0x2c1 [ 33.647723][ T203] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 33.647727][ T203] ? __asan_memcpy+0x3c/0x60 [ 33.647730][ T203] ? rcu_is_watching+0x16/0xd0 [ 33.647733][ T203] __kmalloc_noprof+0x443/0x760 [ 33.647736][ T203] ? __rwlock_init+0x150/0x150 [ 33.647739][ T203] ? alloc_buf.isra.0+0x4b/0x260 [ 33.647743][ T203] ? do_raw_spin_unlock+0x59/0x250 [ 33.647745][ T203] alloc_buf.isra.0+0x4b/0x260 [ 33.647747][ T203] put_chars+0x1e1/0x2f0 [ 33.647749][ T203] ? __send_to_port+0x420/0x420 [ 33.647750][ T203] ? console_prepend_replay+0x20/0x20 [ 33.647753][ T203] hvc_console_print+0x292/0x780 [ 33.647758][ T203] ? hvc_write+0x3a0/0x3a0 [ 33.647760][ T203] ? rcu_is_watching+0x16/0xd0 [ 33.647761][ T203] ? lock_acquire+0x13c/0x160 [ 33.647763][ T203] console_emit_next_record+0x22f/0x4c0 [ 33.647765][ T203] ? devkmsg_read+0x4b0/0x4b0 [ 33.647767][ T203] ? rcu_is_watching+0x16/0xd0 [ 33.647768][ T203] ? rcu_is_watching+0x16/0xd0 [ 33.647769][ T203] ? rcu_is_watching+0x16/0xd0 [ 33.647770][ T203] ? lock_acquire+0x13c/0x160 [ 33.647772][ T203] ? console_flush_one_record+0x111/0x710 [ 33.647774][ T203] console_flush_one_record+0x46f/0x710 [ 33.647776][ T203] ? console_emit_next_record+0x4c0/0x4c0 [ 33.647779][ T203] console_unlock+0xee/0x1f0 [ 33.647780][ T203] ? lock_acquire+0x13c/0x160 [ 33.647782][ T203] ? console_flush_one_record+0x710/0x710 [ 33.647783][ T203] ? rcu_is_watching+0x16/0xd0 [ 33.647784][ T203] ? lock_release+0x184/0x1f0 [ 33.647786][ T203] ? lock_acquire+0xe0/0x160 [ 33.647787][ T203] ? __rcu_read_lock+0x70/0x70 [ 33.647788][ T203] ? __down_trylock_console_sem+0x5e/0xa0 [ 33.647790][ T203] ? vprintk_emit+0x320/0x3e0 [ 33.647792][ T203] vprintk_emit+0x37c/0x3e0 [ 33.647794][ T203] ? wake_up_klogd_work_func+0x90/0x90 [ 33.647795][ T203] ? do_raw_read_unlock+0x70/0x70 [ 33.647797][ T203] ? forget_original_parent+0x5c/0xdb0 [ 33.647799][ T203] _printk+0xc7/0x100 [ 33.647803][ T203] ? snapshot_read.cold+0x21/0x21 [ 33.647804][ T203] ? do_raw_spin_lock+0x131/0x280 [ 33.647806][ T203] ? do_raw_spin_lock+0x131/0x280 [ 33.647808][ T203] ? __rwlock_init+0x150/0x150 [ 33.647810][ T203] ? do_raw_spin_lock+0x131/0x280 [ 33.647811][ T203] do_exit.cold+0x82/0x9c [ 33.647814][ T203] ? exit_notify+0x890/0x890 [ 33.647815][ T203] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 33.647818][ T203] ? rcu_is_watching+0x16/0xd0 [ 33.647819][ T203] do_group_exit+0xb8/0x370 [ 33.647821][ T203] __x64_sys_exit_group+0x3c/0x50 [ 33.647822][ T203] x64_sys_call+0x1567/0x1570 [ 33.647824][ T203] do_syscall_64+0xff/0x530 [ 33.647827][ T203] ? exc_page_fault+0xee/0x100 [ 33.647829][ T203] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 33.647831][ T203] RIP: 0033:0x7f95822381b8 [ 33.647833][ T203] Code: Unable to access opcode bytes at 0x7f958223818e. [ 33.647834][ T203] RSP: 002b:00007ffd5e391798 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 33.647837][ T203] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f95822381b8 [ 33.647839][ T203] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 33.647839][ T203] RBP: 00007ffd5e391920 R08: 000055601a0e8198 R09: 0000000000000000 [ 33.647840][ T203] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 33.647841][ T203] R13: 00007f9581a96050 R14: 00007f9582769d9e R15: 0000556019f65d20 [ 33.647843][ T203]