[ 13.515179][ T88] (udev-worker) (88) used greatest stack depth: 22696 bytes left [ 13.515195][ T88] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.515197][ T88] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 88, name: (udev-worker) [ 13.515199][ T88] preempt_count: 2, expected: 0 [ 13.515199][ T88] RCU nest depth: 0, expected: 0 [ 13.515200][ T88] locks held by (udev-worker)/88: 5, last CPU#3: [ 13.515202][ T88] #0: ffffffff9da027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.515215][ T88] #1: ffffffff9db69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.515221][ T88] #2: ffffffff9db69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.515224][ T88] #3: ffffffff9da89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.515228][ T88] #4: ffffffff9da89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.515231][ T88] irq event stamp: 479098 [ 13.515232][ T88] hardirqs last enabled at (479097): [] __down_trylock_console_sem+0x86/0xa0 [ 13.515235][ T88] hardirqs last disabled at (479098): [] console_emit_next_record+0x3d4/0x4c0 [ 13.515237][ T88] softirqs last enabled at (479034): [] netlink_release+0x17b/0xcf0 [ 13.515241][ T88] softirqs last disabled at (479032): [] netlink_release+0xd2/0xcf0 [ 13.515243][ T88] Preemption disabled at: [ 13.515244][ T88] [<0000000000000000>] 0x0 [ 13.515251][ T88] CPU: 3 UID: 0 PID: 88 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.515254][ T88] Tainted: [W]=WARN [ 13.515255][ T88] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.515257][ T88] Call Trace: [ 13.515258][ T88] [ 13.515260][ T88] dump_stack_lvl+0x6f/0xa0 [ 13.515266][ T88] __might_resched.cold+0x1fe/0x2c1 [ 13.515271][ T88] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.515275][ T88] ? __kmalloc_noprof+0xdb/0x760 [ 13.515280][ T88] __kmalloc_noprof+0x443/0x760 [ 13.515282][ T88] ? alloc_buf.isra.0+0x4b/0x260 [ 13.515289][ T88] ? do_raw_spin_unlock+0x59/0x250 [ 13.515291][ T88] alloc_buf.isra.0+0x4b/0x260 [ 13.515295][ T88] put_chars+0x1e1/0x2f0 [ 13.515298][ T88] ? __send_to_port+0x420/0x420 [ 13.515300][ T88] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 13.515305][ T88] ? validate_chain+0x38b/0xc20 [ 13.515310][ T88] hvc_console_print+0x292/0x780 [ 13.515317][ T88] ? hvc_write+0x3a0/0x3a0 [ 13.515320][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.515322][ T88] ? lock_acquire+0x13c/0x160 [ 13.515326][ T88] console_emit_next_record+0x22f/0x4c0 [ 13.515329][ T88] ? devkmsg_read+0x4b0/0x4b0 [ 13.515331][ T88] ? console_flush_one_record+0x106/0x710 [ 13.515334][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.515336][ T88] ? lock_acquire+0x13c/0x160 [ 13.515340][ T88] console_flush_one_record+0x46f/0x710 [ 13.515344][ T88] ? console_emit_next_record+0x4c0/0x4c0 [ 13.515345][ T88] ? __lock_acquire+0x518/0xc20 [ 13.515350][ T88] console_unlock+0xee/0x1f0 [ 13.515353][ T88] ? console_flush_one_record+0x710/0x710 [ 13.515355][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.515357][ T88] ? lock_acquire+0x60/0x160 [ 13.515360][ T88] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.515361][ T88] ? vprintk_emit+0x320/0x3e0 [ 13.515365][ T88] vprintk_emit+0x37c/0x3e0 [ 13.515368][ T88] ? wake_up_klogd_work_func+0x90/0x90 [ 13.515371][ T88] ? __lock_acquire+0x518/0xc20 [ 13.515375][ T88] _printk+0xc7/0x100 [ 13.515379][ T88] ? snapshot_read.cold+0x21/0x21 [ 13.515382][ T88] ? do_raw_spin_lock+0x131/0x280 [ 13.515384][ T88] ? __rwlock_init+0x150/0x150 [ 13.515388][ T88] ? do_raw_spin_lock+0x131/0x280 [ 13.515390][ T88] do_exit.cold+0x82/0x9c [ 13.515394][ T88] ? exit_notify+0x890/0x890 [ 13.515396][ T88] ? __lock_release.isra.0+0x69/0x1a0 [ 13.515398][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.515402][ T88] do_group_exit+0xb8/0x370 [ 13.515406][ T88] __x64_sys_exit_group+0x3c/0x50 [ 13.515408][ T88] x64_sys_call+0x1567/0x1570 [ 13.515410][ T88] do_syscall_64+0xff/0x530 [ 13.515414][ T88] ? irq_exit_rcu+0x1a/0x30 [ 13.515418][ T88] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.515420][ T88] RIP: 0033:0x7ff3301141b8 [ 13.515422][ T88] Code: Unable to access opcode bytes at 0x7ff33011418e. [ 13.515424][ T88] RSP: 002b:00007fffa13efb88 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.515426][ T88] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff3301141b8 [ 13.515428][ T88] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.515428][ T88] RBP: 00007fffa13efd10 R08: 000055a8a6734b48 R09: 0000000000000000 [ 13.515429][ T88] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 13.515430][ T88] R13: 00007ff32f972050 R14: 00007ff330645d9e R15: 000055a8a65db510 [ 13.515437][ T88]