[ 14.611587][ T85] (udev-worker) (85) used greatest stack depth: 22696 bytes left [ 14.611608][ T85] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.611611][ T85] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 85, name: (udev-worker) [ 14.611614][ T85] preempt_count: 2, expected: 0 [ 14.611615][ T85] RCU nest depth: 0, expected: 0 [ 14.611617][ T85] locks held by (udev-worker)/85: 5, last CPU#2: [ 14.611620][ T85] #0: ffffffffa8c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.611636][ T85] #1: ffffffffa8d69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.611644][ T85] #2: ffffffffa8d69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.611649][ T85] #3: ffffffffa8c89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.611655][ T85] #4: ffffffffa8c89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 14.611661][ T85] irq event stamp: 461174 [ 14.611662][ T85] hardirqs last enabled at (461173): [] __down_trylock_console_sem+0x86/0xa0 [ 14.611666][ T85] hardirqs last disabled at (461174): [] console_emit_next_record+0x3d4/0x4c0 [ 14.611669][ T85] softirqs last enabled at (461110): [] netlink_release+0x17b/0xcf0 [ 14.611674][ T85] softirqs last disabled at (461108): [] netlink_release+0xd2/0xcf0 [ 14.611677][ T85] Preemption disabled at: [ 14.611678][ T85] [<0000000000000000>] 0x0 [ 14.611687][ T85] CPU: 2 UID: 0 PID: 85 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.611692][ T85] Tainted: [W]=WARN [ 14.611693][ T85] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.611695][ T85] Call Trace: [ 14.611698][ T85] [ 14.611700][ T85] dump_stack_lvl+0x6f/0xa0 [ 14.611708][ T85] __might_resched.cold+0x1fe/0x2c1 [ 14.611714][ T85] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.611720][ T85] ? __kmalloc_noprof+0xdb/0x760 [ 14.611727][ T85] __kmalloc_noprof+0x443/0x760 [ 14.611730][ T85] ? alloc_buf.isra.0+0x4b/0x260 [ 14.611740][ T85] ? do_raw_spin_unlock+0x59/0x250 [ 14.611743][ T85] alloc_buf.isra.0+0x4b/0x260 [ 14.611749][ T85] put_chars+0x1e1/0x2f0 [ 14.611754][ T85] ? __send_to_port+0x420/0x420 [ 14.611757][ T85] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 14.611763][ T85] ? validate_chain+0x38b/0xc20 [ 14.611772][ T85] hvc_console_print+0x292/0x780 [ 14.611784][ T85] ? hvc_write+0x3a0/0x3a0 [ 14.611788][ T85] ? rcu_is_watching+0x16/0xd0 [ 14.611792][ T85] ? lock_acquire+0x13c/0x160 [ 14.611799][ T85] console_emit_next_record+0x22f/0x4c0 [ 14.611805][ T85] ? devkmsg_read+0x4b0/0x4b0 [ 14.611807][ T85] ? console_flush_one_record+0x106/0x710 [ 14.611812][ T85] ? rcu_is_watching+0x16/0xd0 [ 14.611816][ T85] ? lock_acquire+0x13c/0x160 [ 14.611823][ T85] console_flush_one_record+0x46f/0x710 [ 14.611830][ T85] ? console_emit_next_record+0x4c0/0x4c0 [ 14.611832][ T85] ? __lock_acquire+0x518/0xc20 [ 14.611841][ T85] console_unlock+0xee/0x1f0 [ 14.611845][ T85] ? console_flush_one_record+0x710/0x710 [ 14.611848][ T85] ? rcu_is_watching+0x16/0xd0 [ 14.611851][ T85] ? lock_acquire+0x60/0x160 [ 14.611857][ T85] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.611860][ T85] ? vprintk_emit+0x320/0x3e0 [ 14.611865][ T85] vprintk_emit+0x37c/0x3e0 [ 14.611871][ T85] ? wake_up_klogd_work_func+0x90/0x90 [ 14.611877][ T85] ? __lock_acquire+0x518/0xc20 [ 14.611883][ T85] _printk+0xc7/0x100 [ 14.611888][ T85] ? snapshot_read.cold+0x21/0x21 [ 14.611893][ T85] ? do_raw_spin_lock+0x131/0x280 [ 14.611896][ T85] ? __rwlock_init+0x150/0x150 [ 14.611903][ T85] ? do_raw_spin_lock+0x131/0x280 [ 14.611907][ T85] do_exit.cold+0x82/0x9c [ 14.611913][ T85] ? exit_notify+0x890/0x890 [ 14.611915][ T85] ? __lock_release.isra.0+0x69/0x1a0 [ 14.611919][ T85] ? rcu_is_watching+0x16/0xd0 [ 14.611927][ T85] do_group_exit+0xb8/0x370 [ 14.611932][ T85] __x64_sys_exit_group+0x3c/0x50 [ 14.611935][ T85] x64_sys_call+0x1567/0x1570 [ 14.611939][ T85] do_syscall_64+0xff/0x530 [ 14.611943][ T85] ? exc_page_fault+0xee/0x100 [ 14.611948][ T85] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.611952][ T85] RIP: 0033:0x7fcb8e0e21b8 [ 14.611955][ T85] Code: Unable to access opcode bytes at 0x7fcb8e0e218e. [ 14.611957][ T85] RSP: 002b:00007fff60fc5318 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.611961][ T85] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcb8e0e21b8 [ 14.611963][ T85] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.611964][ T85] RBP: 00007fff60fc54a0 R08: 0000561946235b58 R09: 0000000000000000 [ 14.611966][ T85] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.611967][ T85] R13: 00007fcb8d940050 R14: 00007fcb8e613d9e R15: 00005619460da3f0 [ 14.611980][ T85]