[ 13.584080][ T82] (udev-worker) (82) used greatest stack depth: 22696 bytes left [ 13.584100][ T82] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.584103][ T82] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 82, name: (udev-worker) [ 13.584104][ T82] preempt_count: 2, expected: 0 [ 13.584105][ T82] RCU nest depth: 0, expected: 0 [ 13.584106][ T82] locks held by (udev-worker)/82: 5, last CPU#1: [ 13.584109][ T82] #0: ffffffffb1e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.584123][ T82] #1: ffffffffb1f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.584129][ T82] #2: ffffffffb1f69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.584133][ T82] #3: ffffffffb1e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.584137][ T82] #4: ffffffffb1e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.584141][ T82] irq event stamp: 485270 [ 13.584142][ T82] hardirqs last enabled at (485269): [] __down_trylock_console_sem+0x86/0xa0 [ 13.584145][ T82] hardirqs last disabled at (485270): [] console_emit_next_record+0x3d4/0x4c0 [ 13.584147][ T82] softirqs last enabled at (485206): [] netlink_release+0x17b/0xcf0 [ 13.584151][ T82] softirqs last disabled at (485204): [] netlink_release+0xd2/0xcf0 [ 13.584154][ T82] Preemption disabled at: [ 13.584154][ T82] [<0000000000000000>] 0x0 [ 13.584162][ T82] CPU: 1 UID: 0 PID: 82 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.584166][ T82] Tainted: [W]=WARN [ 13.584167][ T82] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.584169][ T82] Call Trace: [ 13.584171][ T82] [ 13.584172][ T82] dump_stack_lvl+0x6f/0xa0 [ 13.584179][ T82] __might_resched.cold+0x1fe/0x2c1 [ 13.584184][ T82] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.584188][ T82] ? __kmalloc_noprof+0xdb/0x760 [ 13.584193][ T82] __kmalloc_noprof+0x443/0x760 [ 13.584196][ T82] ? alloc_buf.isra.0+0x4b/0x260 [ 13.584203][ T82] ? do_raw_spin_unlock+0x59/0x250 [ 13.584205][ T82] alloc_buf.isra.0+0x4b/0x260 [ 13.584209][ T82] put_chars+0x1e1/0x2f0 [ 13.584212][ T82] ? __send_to_port+0x420/0x420 [ 13.584214][ T82] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 13.584219][ T82] ? validate_chain+0x38b/0xc20 [ 13.584224][ T82] hvc_console_print+0x292/0x780 [ 13.584232][ T82] ? hvc_write+0x3a0/0x3a0 [ 13.584234][ T82] ? rcu_is_watching+0x16/0xd0 [ 13.584237][ T82] ? lock_acquire+0x13c/0x160 [ 13.584241][ T82] console_emit_next_record+0x22f/0x4c0 [ 13.584245][ T82] ? devkmsg_read+0x4b0/0x4b0 [ 13.584247][ T82] ? console_flush_one_record+0x106/0x710 [ 13.584250][ T82] ? rcu_is_watching+0x16/0xd0 [ 13.584252][ T82] ? lock_acquire+0x13c/0x160 [ 13.584256][ T82] console_flush_one_record+0x46f/0x710 [ 13.584260][ T82] ? console_emit_next_record+0x4c0/0x4c0 [ 13.584262][ T82] ? __lock_acquire+0x518/0xc20 [ 13.584268][ T82] console_unlock+0xee/0x1f0 [ 13.584271][ T82] ? console_flush_one_record+0x710/0x710 [ 13.584272][ T82] ? rcu_is_watching+0x16/0xd0 [ 13.584274][ T82] ? lock_acquire+0x60/0x160 [ 13.584278][ T82] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.584280][ T82] ? vprintk_emit+0x320/0x3e0 [ 13.584283][ T82] vprintk_emit+0x37c/0x3e0 [ 13.584287][ T82] ? wake_up_klogd_work_func+0x90/0x90 [ 13.584290][ T82] ? __lock_acquire+0x518/0xc20 [ 13.584294][ T82] _printk+0xc7/0x100 [ 13.584298][ T82] ? snapshot_read.cold+0x21/0x21 [ 13.584301][ T82] ? do_raw_spin_lock+0x131/0x280 [ 13.584304][ T82] ? __rwlock_init+0x150/0x150 [ 13.584308][ T82] ? do_raw_spin_lock+0x131/0x280 [ 13.584311][ T82] do_exit.cold+0x82/0x9c [ 13.584315][ T82] ? exit_notify+0x890/0x890 [ 13.584317][ T82] ? __lock_release.isra.0+0x69/0x1a0 [ 13.584319][ T82] ? rcu_is_watching+0x16/0xd0 [ 13.584324][ T82] do_group_exit+0xb8/0x370 [ 13.584328][ T82] __x64_sys_exit_group+0x3c/0x50 [ 13.584330][ T82] x64_sys_call+0x1567/0x1570 [ 13.584332][ T82] do_syscall_64+0xff/0x530 [ 13.584336][ T82] ? exc_page_fault+0xee/0x100 [ 13.584340][ T82] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.584342][ T82] RIP: 0033:0x7fb82b46a1b8 [ 13.584345][ T82] Code: Unable to access opcode bytes at 0x7fb82b46a18e. [ 13.584346][ T82] RSP: 002b:00007ffcb312e6b8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.584349][ T82] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb82b46a1b8 [ 13.584351][ T82] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.584352][ T82] RBP: 00007ffcb312e840 R08: 000055a04ee145f8 R09: 0000000000000000 [ 13.584353][ T82] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 13.584353][ T82] R13: 00007fb82acc8050 R14: 00007fb82b99bd9e R15: 000055a04ee15f60 [ 13.584361][ T82]