[ 15.885774][ T184] (udev-worker) (184) used greatest stack depth: 22696 bytes left [ 15.885792][ T184] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 15.885794][ T184] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 184, name: (udev-worker) [ 15.885796][ T184] preempt_count: 2, expected: 0 [ 15.885797][ T184] RCU nest depth: 0, expected: 0 [ 15.885798][ T184] locks held by (udev-worker)/184: 5, last CPU#1: [ 15.885800][ T184] #0: ffffffffa6c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 15.885811][ T184] #1: ffffffffa6d99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 15.885816][ T184] #2: ffffffffa6d99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 15.885820][ T184] #3: ffffffffa6c89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 15.885824][ T184] #4: ffffffffa6c89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 15.885828][ T184] irq event stamp: 105128 [ 15.885829][ T184] hardirqs last enabled at (105127): [] __down_trylock_console_sem+0x86/0xa0 [ 15.885832][ T184] hardirqs last disabled at (105128): [] console_emit_next_record+0x3f8/0x4f0 [ 15.885834][ T184] softirqs last enabled at (105064): [] netlink_release+0x17b/0xcf0 [ 15.885839][ T184] softirqs last disabled at (105062): [] netlink_release+0xd2/0xcf0 [ 15.885842][ T184] Preemption disabled at: [ 15.885842][ T184] [<0000000000000000>] 0x0 [ 15.885849][ T184] CPU: 1 UID: 0 PID: 184 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 15.885852][ T184] Tainted: [W]=WARN [ 15.885853][ T184] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.885855][ T184] Call Trace: [ 15.885856][ T184] [ 15.885858][ T184] dump_stack_lvl+0x6f/0xa0 [ 15.885865][ T184] __might_resched.cold+0x1fe/0x2c1 [ 15.885869][ T184] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 15.885874][ T184] ? __kmalloc_noprof+0xdb/0x760 [ 15.885879][ T184] __kmalloc_noprof+0x443/0x760 [ 15.885882][ T184] ? alloc_buf.isra.0+0x4b/0x260 [ 15.885888][ T184] ? do_raw_spin_unlock+0x59/0x250 [ 15.885890][ T184] alloc_buf.isra.0+0x4b/0x260 [ 15.885894][ T184] put_chars+0x1e1/0x2f0 [ 15.885897][ T184] ? __send_to_port+0x420/0x420 [ 15.885899][ T184] ? printk_get_next_message+0x2fe/0x7d0 [ 15.885902][ T184] ? rcu_read_lock_any_held+0x3c/0x90 [ 15.885906][ T184] ? validate_chain+0x38b/0xc20 [ 15.885911][ T184] hvc_console_print+0x292/0x780 [ 15.885914][ T184] ? __lock_acquire+0x518/0xc20 [ 15.885916][ T184] ? __lock_acquire+0x518/0xc20 [ 15.885920][ T184] ? hvc_write+0x3a0/0x3a0 [ 15.885924][ T184] ? rcu_is_watching+0x16/0xd0 [ 15.885926][ T184] ? lock_acquire+0x13c/0x160 [ 15.885930][ T184] console_emit_next_record+0x252/0x4f0 [ 15.885934][ T184] ? devkmsg_read+0x4e0/0x4e0 [ 15.885938][ T184] ? rcu_is_watching+0x16/0xd0 [ 15.885940][ T184] ? lock_acquire+0x13c/0x160 [ 15.885944][ T184] console_flush_one_record+0x46f/0x710 [ 15.885949][ T184] ? console_emit_next_record+0x4f0/0x4f0 [ 15.885950][ T184] ? __lock_acquire+0x518/0xc20 [ 15.885956][ T184] console_unlock+0xee/0x1f0 [ 15.885959][ T184] ? console_flush_one_record+0x710/0x710 [ 15.885961][ T184] ? rcu_is_watching+0x16/0xd0 [ 15.885962][ T184] ? lock_acquire+0x60/0x160 [ 15.885966][ T184] ? __down_trylock_console_sem+0x5e/0xa0 [ 15.885968][ T184] ? vprintk_emit+0x320/0x3e0 [ 15.885971][ T184] vprintk_emit+0x37c/0x3e0 [ 15.885974][ T184] ? wake_up_klogd_work_func+0x90/0x90 [ 15.885977][ T184] ? __lock_acquire+0x518/0xc20 [ 15.885981][ T184] _printk+0xc7/0x100 [ 15.885984][ T184] ? snapshot_read.cold+0x21/0x21 [ 15.885987][ T184] ? do_raw_spin_lock+0x131/0x280 [ 15.885989][ T184] ? __rwlock_init+0x150/0x150 [ 15.885993][ T184] ? do_raw_spin_lock+0x131/0x280 [ 15.885996][ T184] do_exit.cold+0x82/0x9c [ 15.886000][ T184] ? exit_notify+0x890/0x890 [ 15.886002][ T184] ? __lock_release.isra.0+0x69/0x1a0 [ 15.886005][ T184] ? rcu_is_watching+0x16/0xd0 [ 15.886008][ T184] do_group_exit+0xb8/0x370 [ 15.886011][ T184] __x64_sys_exit_group+0x3c/0x50 [ 15.886013][ T184] x64_sys_call+0x1567/0x1570 [ 15.886015][ T184] do_syscall_64+0xff/0x530 [ 15.886019][ T184] ? exc_page_fault+0xee/0x100 [ 15.886022][ T184] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 15.886024][ T184] RIP: 0033:0x7faa911ba1b8 [ 15.886026][ T184] Code: Unable to access opcode bytes at 0x7faa911ba18e. [ 15.886028][ T184] RSP: 002b:00007ffd76b46eb8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 15.886030][ T184] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faa911ba1b8 [ 15.886031][ T184] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 15.886032][ T184] RBP: 00007ffd76b47040 R08: 000055774f9b1168 R09: 0000000000000000 [ 15.886033][ T184] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 15.886034][ T184] R13: 00007faa90a18050 R14: 00007faa916ebd9e R15: 000055774f999730 [ 15.886041][ T184]