[ 14.337637][ T82] (udev-worker) (82) used greatest stack depth: 22696 bytes left [ 14.337657][ T82] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.337659][ T82] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 82, name: (udev-worker) [ 14.337660][ T82] preempt_count: 2, expected: 0 [ 14.337661][ T82] RCU nest depth: 0, expected: 0 [ 14.337663][ T82] locks held by (udev-worker)/82: 5, last CPU#3: [ 14.337665][ T82] #0: ffffffffab2027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.337678][ T82] #1: ffffffffab369cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.337684][ T82] #2: ffffffffab369d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.337687][ T82] #3: ffffffffab289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.337691][ T82] #4: ffffffffab289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 14.337695][ T82] irq event stamp: 467032 [ 14.337696][ T82] hardirqs last enabled at (467031): [] __down_trylock_console_sem+0x86/0xa0 [ 14.337698][ T82] hardirqs last disabled at (467032): [] console_emit_next_record+0x3d4/0x4c0 [ 14.337700][ T82] softirqs last enabled at (466968): [] netlink_release+0x17b/0xcf0 [ 14.337704][ T82] softirqs last disabled at (466966): [] netlink_release+0xd2/0xcf0 [ 14.337707][ T82] Preemption disabled at: [ 14.337707][ T82] [<0000000000000000>] 0x0 [ 14.337715][ T82] CPU: 3 UID: 0 PID: 82 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.337719][ T82] Tainted: [W]=WARN [ 14.337720][ T82] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.337721][ T82] Call Trace: [ 14.337723][ T82] [ 14.337725][ T82] dump_stack_lvl+0x6f/0xa0 [ 14.337731][ T82] __might_resched.cold+0x1fe/0x2c1 [ 14.337736][ T82] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.337740][ T82] ? __kmalloc_noprof+0xdb/0x760 [ 14.337745][ T82] __kmalloc_noprof+0x443/0x760 [ 14.337748][ T82] ? alloc_buf.isra.0+0x4b/0x260 [ 14.337754][ T82] ? do_raw_spin_unlock+0x59/0x250 [ 14.337757][ T82] alloc_buf.isra.0+0x4b/0x260 [ 14.337761][ T82] put_chars+0x1e1/0x2f0 [ 14.337764][ T82] ? __send_to_port+0x420/0x420 [ 14.337766][ T82] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 14.337771][ T82] ? validate_chain+0x38b/0xc20 [ 14.337776][ T82] hvc_console_print+0x292/0x780 [ 14.337783][ T82] ? hvc_write+0x3a0/0x3a0 [ 14.337786][ T82] ? rcu_is_watching+0x16/0xd0 [ 14.337788][ T82] ? lock_acquire+0x13c/0x160 [ 14.337792][ T82] console_emit_next_record+0x22f/0x4c0 [ 14.337796][ T82] ? devkmsg_read+0x4b0/0x4b0 [ 14.337798][ T82] ? console_flush_one_record+0x106/0x710 [ 14.337801][ T82] ? rcu_is_watching+0x16/0xd0 [ 14.337803][ T82] ? lock_acquire+0x13c/0x160 [ 14.337807][ T82] console_flush_one_record+0x46f/0x710 [ 14.337812][ T82] ? console_emit_next_record+0x4c0/0x4c0 [ 14.337813][ T82] ? __lock_acquire+0x518/0xc20 [ 14.337819][ T82] console_unlock+0xee/0x1f0 [ 14.337822][ T82] ? console_flush_one_record+0x710/0x710 [ 14.337823][ T82] ? rcu_is_watching+0x16/0xd0 [ 14.337826][ T82] ? lock_acquire+0x60/0x160 [ 14.337829][ T82] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.337831][ T82] ? vprintk_emit+0x320/0x3e0 [ 14.337835][ T82] vprintk_emit+0x37c/0x3e0 [ 14.337838][ T82] ? wake_up_klogd_work_func+0x90/0x90 [ 14.337842][ T82] ? __lock_acquire+0x518/0xc20 [ 14.337845][ T82] _printk+0xc7/0x100 [ 14.337849][ T82] ? snapshot_read.cold+0x21/0x21 [ 14.337852][ T82] ? do_raw_spin_lock+0x131/0x280 [ 14.337855][ T82] ? __rwlock_init+0x150/0x150 [ 14.337859][ T82] ? do_raw_spin_lock+0x131/0x280 [ 14.337861][ T82] do_exit.cold+0x82/0x9c [ 14.337866][ T82] ? exit_notify+0x890/0x890 [ 14.337867][ T82] ? __lock_release.isra.0+0x69/0x1a0 [ 14.337870][ T82] ? rcu_is_watching+0x16/0xd0 [ 14.337874][ T82] do_group_exit+0xb8/0x370 [ 14.337878][ T82] __x64_sys_exit_group+0x3c/0x50 [ 14.337880][ T82] x64_sys_call+0x1567/0x1570 [ 14.337883][ T82] do_syscall_64+0xff/0x530 [ 14.337887][ T82] ? exc_page_fault+0xee/0x100 [ 14.337890][ T82] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.337892][ T82] RIP: 0033:0x7facfe21f1b8 [ 14.337895][ T82] Code: Unable to access opcode bytes at 0x7facfe21f18e. [ 14.337896][ T82] RSP: 002b:00007ffe67bc32e8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.337899][ T82] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007facfe21f1b8 [ 14.337900][ T82] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.337901][ T82] RBP: 00007ffe67bc3470 R08: 000055e5bfd261f8 R09: 0000000000000000 [ 14.337902][ T82] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.337903][ T82] R13: 00007facfda7d050 R14: 00007facfe750d9e R15: 000055e5bfd168a0 [ 14.337911][ T82]