[ 17.915741][ T82] (udev-worker) (82) used greatest stack depth: 22696 bytes left [ 17.915762][ T82] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 17.915765][ T82] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 82, name: (udev-worker) [ 17.915766][ T82] preempt_count: 2, expected: 0 [ 17.915767][ T82] RCU nest depth: 0, expected: 0 [ 17.915768][ T82] locks held by (udev-worker)/82: 5, last CPU#3: [ 17.915771][ T82] #0: ffffffff934027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 17.915784][ T82] #1: ffffffff93599cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 17.915789][ T82] #2: ffffffff93599d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 17.915793][ T82] #3: ffffffff93489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 17.915797][ T82] #4: ffffffff93489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 17.915800][ T82] irq event stamp: 829810 [ 17.915802][ T82] hardirqs last enabled at (829809): [] __down_trylock_console_sem+0x86/0xa0 [ 17.915804][ T82] hardirqs last disabled at (829810): [] console_emit_next_record+0x3f8/0x4f0 [ 17.915806][ T82] softirqs last enabled at (829746): [] netlink_release+0x17b/0xcf0 [ 17.915810][ T82] softirqs last disabled at (829744): [] netlink_release+0xd2/0xcf0 [ 17.915813][ T82] Preemption disabled at: [ 17.915814][ T82] [<0000000000000000>] 0x0 [ 17.915823][ T82] CPU: 3 UID: 0 PID: 82 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 17.915826][ T82] Tainted: [W]=WARN [ 17.915827][ T82] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.915829][ T82] Call Trace: [ 17.915831][ T82] [ 17.915832][ T82] dump_stack_lvl+0x6f/0xa0 [ 17.915839][ T82] __might_resched.cold+0x1fe/0x2c1 [ 17.915845][ T82] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 17.915849][ T82] ? __kmalloc_noprof+0xdb/0x760 [ 17.915854][ T82] __kmalloc_noprof+0x443/0x760 [ 17.915856][ T82] ? alloc_buf.isra.0+0x4b/0x260 [ 17.915861][ T82] ? do_raw_spin_unlock+0x59/0x250 [ 17.915864][ T82] alloc_buf.isra.0+0x4b/0x260 [ 17.915867][ T82] put_chars+0x1e1/0x2f0 [ 17.915870][ T82] ? __send_to_port+0x420/0x420 [ 17.915871][ T82] ? printk_get_next_message+0x2fe/0x7d0 [ 17.915875][ T82] ? rcu_read_lock_any_held+0x3c/0x90 [ 17.915878][ T82] ? validate_chain+0x38b/0xc20 [ 17.915882][ T82] hvc_console_print+0x292/0x780 [ 17.915885][ T82] ? __lock_acquire+0x518/0xc20 [ 17.915886][ T82] ? __lock_acquire+0x518/0xc20 [ 17.915891][ T82] ? hvc_write+0x3a0/0x3a0 [ 17.915894][ T82] ? rcu_is_watching+0x16/0xd0 [ 17.915897][ T82] ? lock_acquire+0x13c/0x160 [ 17.915901][ T82] console_emit_next_record+0x252/0x4f0 [ 17.915905][ T82] ? devkmsg_read+0x4e0/0x4e0 [ 17.915909][ T82] ? rcu_is_watching+0x16/0xd0 [ 17.915911][ T82] ? lock_acquire+0x13c/0x160 [ 17.915915][ T82] console_flush_one_record+0x46f/0x710 [ 17.915919][ T82] ? console_emit_next_record+0x4f0/0x4f0 [ 17.915921][ T82] ? __lock_acquire+0x518/0xc20 [ 17.915926][ T82] console_unlock+0xee/0x1f0 [ 17.915928][ T82] ? console_flush_one_record+0x710/0x710 [ 17.915930][ T82] ? rcu_is_watching+0x16/0xd0 [ 17.915932][ T82] ? lock_acquire+0x60/0x160 [ 17.915935][ T82] ? __down_trylock_console_sem+0x5e/0xa0 [ 17.915937][ T82] ? vprintk_emit+0x320/0x3e0 [ 17.915940][ T82] vprintk_emit+0x37c/0x3e0 [ 17.915944][ T82] ? wake_up_klogd_work_func+0x90/0x90 [ 17.915947][ T82] ? __lock_acquire+0x518/0xc20 [ 17.915950][ T82] _printk+0xc7/0x100 [ 17.915954][ T82] ? snapshot_read.cold+0x21/0x21 [ 17.915957][ T82] ? do_raw_spin_lock+0x131/0x280 [ 17.915959][ T82] ? __rwlock_init+0x150/0x150 [ 17.915963][ T82] ? do_raw_spin_lock+0x131/0x280 [ 17.915966][ T82] do_exit.cold+0x82/0x9c [ 17.915970][ T82] ? exit_notify+0x890/0x890 [ 17.915971][ T82] ? __lock_release.isra.0+0x69/0x1a0 [ 17.915974][ T82] ? rcu_is_watching+0x16/0xd0 [ 17.915978][ T82] do_group_exit+0xb8/0x370 [ 17.915981][ T82] __x64_sys_exit_group+0x3c/0x50 [ 17.915984][ T82] x64_sys_call+0x1567/0x1570 [ 17.915986][ T82] do_syscall_64+0xff/0x530 [ 17.915989][ T82] ? exc_page_fault+0xee/0x100 [ 17.915993][ T82] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.915995][ T82] RIP: 0033:0x7fa8006b31b8 [ 17.915998][ T82] Code: Unable to access opcode bytes at 0x7fa8006b318e. [ 17.915999][ T82] RSP: 002b:00007ffce5d1cb08 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 17.916001][ T82] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa8006b31b8 [ 17.916003][ T82] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 17.916004][ T82] RBP: 00007ffce5d1cc90 R08: 000055d93e4e4e08 R09: 0000000000000000 [ 17.916005][ T82] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 17.916005][ T82] R13: 00007fa7fff11050 R14: 00007fa800be4d9e R15: 000055d93e4eb330 [ 17.916012][ T82]