[ 22.951084][ T88] (udev-worker) (88) used greatest stack depth: 22760 bytes left [ 22.951101][ T88] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 22.951103][ T88] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 88, name: (udev-worker) [ 22.951105][ T88] preempt_count: 2, expected: 0 [ 22.951105][ T88] RCU nest depth: 0, expected: 0 [ 22.951106][ T88] locks held by (udev-worker)/88: 5, last CPU#1: [ 22.951109][ T88] #0: ffffffffb0e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 22.951120][ T88] #1: ffffffffb0f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 22.951125][ T88] #2: ffffffffb0f69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 22.951129][ T88] #3: ffffffffb0e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 22.951132][ T88] #4: ffffffffb0e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 22.951135][ T88] irq event stamp: 2354744 [ 22.951136][ T88] hardirqs last enabled at (2354743): [] __down_trylock_console_sem+0x86/0xa0 [ 22.951139][ T88] hardirqs last disabled at (2354744): [] console_emit_next_record+0x3d4/0x4c0 [ 22.951140][ T88] softirqs last enabled at (2354664): [] netlink_release+0x17b/0xcf0 [ 22.951145][ T88] softirqs last disabled at (2354662): [] netlink_release+0xd2/0xcf0 [ 22.951148][ T88] Preemption disabled at: [ 22.951148][ T88] [<0000000000000000>] 0x0 [ 22.951155][ T88] CPU: 1 UID: 0 PID: 88 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 22.951159][ T88] Tainted: [W]=WARN [ 22.951160][ T88] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.951162][ T88] Call Trace: [ 22.951163][ T88] [ 22.951165][ T88] dump_stack_lvl+0x6f/0xa0 [ 22.951170][ T88] __might_resched.cold+0x1fe/0x2c1 [ 22.951174][ T88] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 22.951178][ T88] ? __kmalloc_noprof+0xdb/0x760 [ 22.951183][ T88] __kmalloc_noprof+0x443/0x760 [ 22.951185][ T88] ? alloc_buf.isra.0+0x4b/0x260 [ 22.951194][ T88] ? do_raw_spin_unlock+0x59/0x250 [ 22.951197][ T88] alloc_buf.isra.0+0x4b/0x260 [ 22.951200][ T88] put_chars+0x1e1/0x2f0 [ 22.951203][ T88] ? __send_to_port+0x420/0x420 [ 22.951205][ T88] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 22.951209][ T88] ? validate_chain+0x38b/0xc20 [ 22.951214][ T88] hvc_console_print+0x292/0x780 [ 22.951220][ T88] ? hvc_write+0x3a0/0x3a0 [ 22.951223][ T88] ? rcu_is_watching+0x16/0xd0 [ 22.951225][ T88] ? lock_acquire+0x13c/0x160 [ 22.951228][ T88] console_emit_next_record+0x22f/0x4c0 [ 22.951232][ T88] ? devkmsg_read+0x4b0/0x4b0 [ 22.951233][ T88] ? console_flush_one_record+0x106/0x710 [ 22.951236][ T88] ? rcu_is_watching+0x16/0xd0 [ 22.951237][ T88] ? lock_acquire+0x13c/0x160 [ 22.951241][ T88] console_flush_one_record+0x46f/0x710 [ 22.951244][ T88] ? console_emit_next_record+0x4c0/0x4c0 [ 22.951246][ T88] ? __lock_acquire+0x518/0xc20 [ 22.951251][ T88] console_unlock+0xee/0x1f0 [ 22.951253][ T88] ? console_flush_one_record+0x710/0x710 [ 22.951254][ T88] ? rcu_is_watching+0x16/0xd0 [ 22.951256][ T88] ? lock_acquire+0x60/0x160 [ 22.951260][ T88] ? __down_trylock_console_sem+0x5e/0xa0 [ 22.951261][ T88] ? vprintk_emit+0x320/0x3e0 [ 22.951264][ T88] vprintk_emit+0x37c/0x3e0 [ 22.951267][ T88] ? wake_up_klogd_work_func+0x90/0x90 [ 22.951270][ T88] ? __lock_acquire+0x518/0xc20 [ 22.951274][ T88] _printk+0xc7/0x100 [ 22.951278][ T88] ? snapshot_read.cold+0x21/0x21 [ 22.951280][ T88] ? do_raw_spin_lock+0x131/0x280 [ 22.951283][ T88] ? __rwlock_init+0x150/0x150 [ 22.951287][ T88] ? do_raw_spin_lock+0x131/0x280 [ 22.951290][ T88] do_exit.cold+0x82/0x9c [ 22.951293][ T88] ? exit_notify+0x890/0x890 [ 22.951294][ T88] ? __lock_release.isra.0+0x69/0x1a0 [ 22.951297][ T88] ? rcu_is_watching+0x16/0xd0 [ 22.951301][ T88] do_group_exit+0xb8/0x370 [ 22.951303][ T88] __x64_sys_exit_group+0x3c/0x50 [ 22.951305][ T88] x64_sys_call+0x1567/0x1570 [ 22.951308][ T88] do_syscall_64+0xff/0x530 [ 22.951311][ T88] ? exc_page_fault+0xee/0x100 [ 22.951314][ T88] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 22.951317][ T88] RIP: 0033:0x7fd3e4f251b8 [ 22.951319][ T88] Code: Unable to access opcode bytes at 0x7fd3e4f2518e. [ 22.951320][ T88] RSP: 002b:00007fff714798c8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 22.951322][ T88] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd3e4f251b8 [ 22.951324][ T88] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 22.951325][ T88] RBP: 00007fff71479a50 R08: 000055ffcd339e28 R09: 0000000000000000 [ 22.951325][ T88] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 22.951326][ T88] R13: 00007fd3e4783050 R14: 00007fd3e5456d9e R15: 000055ffcd1d06e0 [ 22.951333][ T88]