[ 13.052564][ T88] (udev-worker) (88) used greatest stack depth: 22696 bytes left [ 13.052583][ T88] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.052585][ T88] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 88, name: (udev-worker) [ 13.052587][ T88] preempt_count: 2, expected: 0 [ 13.052588][ T88] RCU nest depth: 0, expected: 0 [ 13.052589][ T88] locks held by (udev-worker)/88: 5, last CPU#2: [ 13.052591][ T88] #0: ffffffffa46027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.052604][ T88] #1: ffffffffa4769cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.052610][ T88] #2: ffffffffa4769d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.052614][ T88] #3: ffffffffa4689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.052618][ T88] #4: ffffffffa4689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.052621][ T88] irq event stamp: 508130 [ 13.052622][ T88] hardirqs last enabled at (508129): [] __down_trylock_console_sem+0x86/0xa0 [ 13.052625][ T88] hardirqs last disabled at (508130): [] console_emit_next_record+0x3d4/0x4c0 [ 13.052626][ T88] softirqs last enabled at (508066): [] netlink_release+0x17b/0xcf0 [ 13.052630][ T88] softirqs last disabled at (508064): [] netlink_release+0xd2/0xcf0 [ 13.052632][ T88] Preemption disabled at: [ 13.052633][ T88] [<0000000000000000>] 0x0 [ 13.052640][ T88] CPU: 2 UID: 0 PID: 88 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.052643][ T88] Tainted: [W]=WARN [ 13.052644][ T88] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.052646][ T88] Call Trace: [ 13.052647][ T88] [ 13.052649][ T88] dump_stack_lvl+0x6f/0xa0 [ 13.052655][ T88] __might_resched.cold+0x1fe/0x2c1 [ 13.052659][ T88] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.052663][ T88] ? __kmalloc_noprof+0xdb/0x760 [ 13.052668][ T88] __kmalloc_noprof+0x443/0x760 [ 13.052670][ T88] ? alloc_buf.isra.0+0x4b/0x260 [ 13.052676][ T88] ? do_raw_spin_unlock+0x59/0x250 [ 13.052679][ T88] alloc_buf.isra.0+0x4b/0x260 [ 13.052682][ T88] put_chars+0x1e1/0x2f0 [ 13.052685][ T88] ? __send_to_port+0x420/0x420 [ 13.052687][ T88] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 13.052692][ T88] ? validate_chain+0x38b/0xc20 [ 13.052697][ T88] hvc_console_print+0x292/0x780 [ 13.052704][ T88] ? hvc_write+0x3a0/0x3a0 [ 13.052706][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.052709][ T88] ? lock_acquire+0x13c/0x160 [ 13.052713][ T88] console_emit_next_record+0x22f/0x4c0 [ 13.052716][ T88] ? devkmsg_read+0x4b0/0x4b0 [ 13.052718][ T88] ? console_flush_one_record+0x106/0x710 [ 13.052721][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.052723][ T88] ? lock_acquire+0x13c/0x160 [ 13.052727][ T88] console_flush_one_record+0x46f/0x710 [ 13.052731][ T88] ? console_emit_next_record+0x4c0/0x4c0 [ 13.052733][ T88] ? __lock_acquire+0x518/0xc20 [ 13.052738][ T88] console_unlock+0xee/0x1f0 [ 13.052740][ T88] ? console_flush_one_record+0x710/0x710 [ 13.052742][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.052744][ T88] ? lock_acquire+0x60/0x160 [ 13.052748][ T88] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.052757][ T88] ? vprintk_emit+0x320/0x3e0 [ 13.052761][ T88] vprintk_emit+0x37c/0x3e0 [ 13.052764][ T88] ? wake_up_klogd_work_func+0x90/0x90 [ 13.052768][ T88] ? __lock_acquire+0x518/0xc20 [ 13.052772][ T88] _printk+0xc7/0x100 [ 13.052776][ T88] ? snapshot_read.cold+0x21/0x21 [ 13.052779][ T88] ? do_raw_spin_lock+0x131/0x280 [ 13.052782][ T88] ? __rwlock_init+0x150/0x150 [ 13.052785][ T88] ? do_raw_spin_lock+0x131/0x280 [ 13.052788][ T88] do_exit.cold+0x82/0x9c [ 13.052792][ T88] ? exit_notify+0x890/0x890 [ 13.052794][ T88] ? __lock_release.isra.0+0x69/0x1a0 [ 13.052797][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.052801][ T88] do_group_exit+0xb8/0x370 [ 13.052805][ T88] __x64_sys_exit_group+0x3c/0x50 [ 13.052807][ T88] x64_sys_call+0x1567/0x1570 [ 13.052809][ T88] do_syscall_64+0xff/0x530 [ 13.052813][ T88] ? exc_page_fault+0xee/0x100 [ 13.052816][ T88] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.052819][ T88] RIP: 0033:0x7ff7a11e41b8 [ 13.052821][ T88] Code: Unable to access opcode bytes at 0x7ff7a11e418e. [ 13.052823][ T88] RSP: 002b:00007ffe7eeeb3c8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.052825][ T88] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff7a11e41b8 [ 13.052827][ T88] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.052828][ T88] RBP: 00007ffe7eeeb550 R08: 0000559c93b92758 R09: 0000000000000000 [ 13.052829][ T88] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 13.052829][ T88] R13: 00007ff7a0a42050 R14: 00007ff7a1715d9e R15: 0000559c93a32d40 [ 13.052837][ T88]