[ 11.127761][ T88] (udev-worker) (88) used greatest stack depth: 22696 bytes left [ 11.127777][ T88] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.127779][ T88] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 88, name: (udev-worker) [ 11.127781][ T88] preempt_count: 2, expected: 0 [ 11.127782][ T88] RCU nest depth: 0, expected: 0 [ 11.127783][ T88] locks held by (udev-worker)/88: 5, last CPU#0: [ 11.127785][ T88] #0: ffffffffbbc027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.127796][ T88] #1: ffffffffbbd99dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.127801][ T88] #2: ffffffffbbd99e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.127805][ T88] #3: ffffffffbbc89760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.127809][ T88] #4: ffffffffbbc89660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 11.127813][ T88] irq event stamp: 419298 [ 11.127814][ T88] hardirqs last enabled at (419297): [] __down_trylock_console_sem+0x86/0xa0 [ 11.127817][ T88] hardirqs last disabled at (419298): [] console_emit_next_record+0x3f8/0x4f0 [ 11.127819][ T88] softirqs last enabled at (419234): [] netlink_release+0x17b/0xcf0 [ 11.127823][ T88] softirqs last disabled at (419232): [] netlink_release+0xd2/0xcf0 [ 11.127825][ T88] Preemption disabled at: [ 11.127826][ T88] [<0000000000000000>] 0x0 [ 11.127833][ T88] CPU: 0 UID: 0 PID: 88 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.127836][ T88] Tainted: [W]=WARN [ 11.127837][ T88] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.127839][ T88] Call Trace: [ 11.127841][ T88] [ 11.127842][ T88] dump_stack_lvl+0x6f/0xa0 [ 11.127849][ T88] __might_resched.cold+0x1fe/0x2c1 [ 11.127854][ T88] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.127859][ T88] ? __kmalloc_noprof+0xdb/0x760 [ 11.127864][ T88] __kmalloc_noprof+0x443/0x760 [ 11.127867][ T88] ? alloc_buf.isra.0+0x4b/0x260 [ 11.127873][ T88] ? do_raw_spin_unlock+0x59/0x250 [ 11.127876][ T88] alloc_buf.isra.0+0x4b/0x260 [ 11.127880][ T88] put_chars+0x1e1/0x2f0 [ 11.127883][ T88] ? __send_to_port+0x420/0x420 [ 11.127885][ T88] ? printk_get_next_message+0x2fe/0x7d0 [ 11.127888][ T88] ? rcu_read_lock_any_held+0x3c/0x90 [ 11.127891][ T88] ? validate_chain+0x38b/0xc20 [ 11.127895][ T88] hvc_console_print+0x292/0x780 [ 11.127900][ T88] ? __lock_acquire+0x518/0xc20 [ 11.127901][ T88] ? __lock_acquire+0x518/0xc20 [ 11.127905][ T88] ? hvc_write+0x3a0/0x3a0 [ 11.127909][ T88] ? rcu_is_watching+0x16/0xd0 [ 11.127913][ T88] ? lock_acquire+0x13c/0x160 [ 11.127917][ T88] console_emit_next_record+0x252/0x4f0 [ 11.127920][ T88] ? devkmsg_read+0x4e0/0x4e0 [ 11.127925][ T88] ? rcu_is_watching+0x16/0xd0 [ 11.127927][ T88] ? lock_acquire+0x13c/0x160 [ 11.127931][ T88] console_flush_one_record+0x46f/0x710 [ 11.127935][ T88] ? console_emit_next_record+0x4f0/0x4f0 [ 11.127937][ T88] ? __lock_acquire+0x518/0xc20 [ 11.127942][ T88] console_unlock+0xee/0x1f0 [ 11.127945][ T88] ? console_flush_one_record+0x710/0x710 [ 11.127947][ T88] ? rcu_is_watching+0x16/0xd0 [ 11.127949][ T88] ? lock_acquire+0xa0/0x160 [ 11.127953][ T88] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.127955][ T88] ? vprintk_emit+0x320/0x3e0 [ 11.127958][ T88] vprintk_emit+0x37c/0x3e0 [ 11.127962][ T88] ? wake_up_klogd_work_func+0x90/0x90 [ 11.127965][ T88] ? __lock_acquire+0x518/0xc20 [ 11.127969][ T88] _printk+0xc7/0x100 [ 11.127972][ T88] ? snapshot_read.cold+0x21/0x21 [ 11.127975][ T88] ? do_raw_spin_lock+0x131/0x280 [ 11.127978][ T88] ? __rwlock_init+0x150/0x150 [ 11.127981][ T88] ? do_raw_spin_lock+0x131/0x280 [ 11.127984][ T88] do_exit.cold+0x82/0x9c [ 11.127988][ T88] ? exit_notify+0x890/0x890 [ 11.127989][ T88] ? __lock_release.isra.0+0x69/0x1a0 [ 11.127992][ T88] ? rcu_is_watching+0x16/0xd0 [ 11.127996][ T88] do_group_exit+0xb8/0x370 [ 11.127999][ T88] __x64_sys_exit_group+0x3c/0x50 [ 11.128001][ T88] x64_sys_call+0x1567/0x1570 [ 11.128003][ T88] do_syscall_64+0xff/0x530 [ 11.128008][ T88] ? irq_exit_rcu+0x1a/0x30 [ 11.128011][ T88] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.128013][ T88] RIP: 0033:0x7fc455ba71b8 [ 11.128015][ T88] Code: Unable to access opcode bytes at 0x7fc455ba718e. [ 11.128016][ T88] RSP: 002b:00007ffcadbf5818 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 11.128019][ T88] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc455ba71b8 [ 11.128020][ T88] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 11.128021][ T88] RBP: 00007ffcadbf59a0 R08: 000055c54dd422b8 R09: 0000000000000000 [ 11.128022][ T88] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 11.128023][ T88] R13: 00007fc455405050 R14: 00007fc4560d8d9e R15: 000055c54dbe7790 [ 11.128030][ T88]