[ 16.005616][ T184] (udev-worker) (184) used greatest stack depth: 22696 bytes left [ 16.005637][ T184] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 16.005640][ T184] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 184, name: (udev-worker) [ 16.005641][ T184] preempt_count: 2, expected: 0 [ 16.005642][ T184] RCU nest depth: 0, expected: 0 [ 16.005643][ T184] locks held by (udev-worker)/184: 5, last CPU#2: [ 16.005645][ T184] #0: ffffffffa9e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 16.005657][ T184] #1: ffffffffa9f99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 16.005662][ T184] #2: ffffffffa9f99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 16.005667][ T184] #3: ffffffffa9e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 16.005671][ T184] #4: ffffffffa9e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 16.005675][ T184] irq event stamp: 92068 [ 16.005676][ T184] hardirqs last enabled at (92067): [] __down_trylock_console_sem+0x86/0xa0 [ 16.005679][ T184] hardirqs last disabled at (92068): [] console_emit_next_record+0x3f8/0x4f0 [ 16.005681][ T184] softirqs last enabled at (92004): [] netlink_release+0x17b/0xcf0 [ 16.005685][ T184] softirqs last disabled at (92002): [] netlink_release+0xd2/0xcf0 [ 16.005688][ T184] Preemption disabled at: [ 16.005689][ T184] [<0000000000000000>] 0x0 [ 16.005696][ T184] CPU: 2 UID: 0 PID: 184 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 16.005699][ T184] Tainted: [W]=WARN [ 16.005700][ T184] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.005702][ T184] Call Trace: [ 16.005703][ T184] [ 16.005705][ T184] dump_stack_lvl+0x6f/0xa0 [ 16.005712][ T184] __might_resched.cold+0x1fe/0x2c1 [ 16.005716][ T184] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 16.005720][ T184] ? __kmalloc_noprof+0xdb/0x760 [ 16.005726][ T184] __kmalloc_noprof+0x443/0x760 [ 16.005729][ T184] ? alloc_buf.isra.0+0x4b/0x260 [ 16.005735][ T184] ? do_raw_spin_unlock+0x59/0x250 [ 16.005737][ T184] alloc_buf.isra.0+0x4b/0x260 [ 16.005741][ T184] put_chars+0x1e1/0x2f0 [ 16.005744][ T184] ? __send_to_port+0x420/0x420 [ 16.005746][ T184] ? printk_get_next_message+0x2fe/0x7d0 [ 16.005749][ T184] ? rcu_read_lock_any_held+0x3c/0x90 [ 16.005753][ T184] ? validate_chain+0x38b/0xc20 [ 16.005757][ T184] hvc_console_print+0x292/0x780 [ 16.005760][ T184] ? __lock_acquire+0x518/0xc20 [ 16.005762][ T184] ? __lock_acquire+0x518/0xc20 [ 16.005767][ T184] ? hvc_write+0x3a0/0x3a0 [ 16.005770][ T184] ? rcu_is_watching+0x16/0xd0 [ 16.005772][ T184] ? lock_acquire+0x13c/0x160 [ 16.005776][ T184] console_emit_next_record+0x252/0x4f0 [ 16.005780][ T184] ? devkmsg_read+0x4e0/0x4e0 [ 16.005785][ T184] ? rcu_is_watching+0x16/0xd0 [ 16.005787][ T184] ? lock_acquire+0x13c/0x160 [ 16.005791][ T184] console_flush_one_record+0x46f/0x710 [ 16.005795][ T184] ? console_emit_next_record+0x4f0/0x4f0 [ 16.005797][ T184] ? __lock_acquire+0x518/0xc20 [ 16.005802][ T184] console_unlock+0xee/0x1f0 [ 16.005805][ T184] ? console_flush_one_record+0x710/0x710 [ 16.005807][ T184] ? rcu_is_watching+0x16/0xd0 [ 16.005809][ T184] ? lock_acquire+0x60/0x160 [ 16.005812][ T184] ? __down_trylock_console_sem+0x5e/0xa0 [ 16.005814][ T184] ? vprintk_emit+0x320/0x3e0 [ 16.005817][ T184] vprintk_emit+0x37c/0x3e0 [ 16.005820][ T184] ? wake_up_klogd_work_func+0x90/0x90 [ 16.005823][ T184] ? __lock_acquire+0x518/0xc20 [ 16.005826][ T184] _printk+0xc7/0x100 [ 16.005830][ T184] ? snapshot_read.cold+0x21/0x21 [ 16.005833][ T184] ? do_raw_spin_lock+0x131/0x280 [ 16.005835][ T184] ? __rwlock_init+0x150/0x150 [ 16.005839][ T184] ? do_raw_spin_lock+0x131/0x280 [ 16.005842][ T184] do_exit.cold+0x82/0x9c [ 16.005846][ T184] ? exit_notify+0x890/0x890 [ 16.005847][ T184] ? __lock_release.isra.0+0x69/0x1a0 [ 16.005850][ T184] ? rcu_is_watching+0x16/0xd0 [ 16.005853][ T184] do_group_exit+0xb8/0x370 [ 16.005856][ T184] __x64_sys_exit_group+0x3c/0x50 [ 16.005858][ T184] x64_sys_call+0x1567/0x1570 [ 16.005860][ T184] do_syscall_64+0xff/0x530 [ 16.005864][ T184] ? exc_page_fault+0xee/0x100 [ 16.005867][ T184] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 16.005869][ T184] RIP: 0033:0x7ff4ee9bb1b8 [ 16.005871][ T184] Code: Unable to access opcode bytes at 0x7ff4ee9bb18e. [ 16.005873][ T184] RSP: 002b:00007ffda1cf8288 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 16.005875][ T184] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff4ee9bb1b8 [ 16.005877][ T184] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 16.005878][ T184] RBP: 00007ffda1cf8410 R08: 000055c2b0dbb478 R09: 0000000000000000 [ 16.005879][ T184] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 16.005879][ T184] R13: 00007ff4ee219050 R14: 00007ff4eeeecd9e R15: 000055c2b0d9a600 [ 16.005886][ T184]