[ 12.314919][ T90] (udev-worker) (90) used greatest stack depth: 22696 bytes left [ 12.314942][ T90] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.314944][ T90] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 90, name: (udev-worker) [ 12.314946][ T90] preempt_count: 2, expected: 0 [ 12.314947][ T90] RCU nest depth: 0, expected: 0 [ 12.314948][ T90] locks held by (udev-worker)/90: 5, last CPU#0: [ 12.314950][ T90] #0: ffffffff98c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.314963][ T90] #1: ffffffff98d99dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.314969][ T90] #2: ffffffff98d99e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.314973][ T90] #3: ffffffff98c89760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.314977][ T90] #4: ffffffff98c89660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 12.314981][ T90] irq event stamp: 358700 [ 12.314982][ T90] hardirqs last enabled at (358699): [] __down_trylock_console_sem+0x86/0xa0 [ 12.314985][ T90] hardirqs last disabled at (358700): [] console_emit_next_record+0x3f8/0x4f0 [ 12.314987][ T90] softirqs last enabled at (358634): [] netlink_release+0x17b/0xcf0 [ 12.314991][ T90] softirqs last disabled at (358632): [] netlink_release+0xd2/0xcf0 [ 12.314994][ T90] Preemption disabled at: [ 12.314995][ T90] [<0000000000000000>] 0x0 [ 12.315002][ T90] CPU: 0 UID: 0 PID: 90 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.315006][ T90] Tainted: [W]=WARN [ 12.315007][ T90] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.315009][ T90] Call Trace: [ 12.315010][ T90] [ 12.315012][ T90] dump_stack_lvl+0x6f/0xa0 [ 12.315018][ T90] __might_resched.cold+0x1fe/0x2c1 [ 12.315023][ T90] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.315028][ T90] ? __kmalloc_noprof+0xdb/0x760 [ 12.315033][ T90] __kmalloc_noprof+0x443/0x760 [ 12.315036][ T90] ? alloc_buf.isra.0+0x4b/0x260 [ 12.315044][ T90] ? do_raw_spin_unlock+0x59/0x250 [ 12.315047][ T90] alloc_buf.isra.0+0x4b/0x260 [ 12.315051][ T90] put_chars+0x1e1/0x2f0 [ 12.315055][ T90] ? __send_to_port+0x420/0x420 [ 12.315057][ T90] ? printk_get_next_message+0x2fe/0x7d0 [ 12.315060][ T90] ? rcu_read_lock_any_held+0x3c/0x90 [ 12.315064][ T90] ? validate_chain+0x38b/0xc20 [ 12.315068][ T90] hvc_console_print+0x292/0x780 [ 12.315072][ T90] ? __lock_acquire+0x518/0xc20 [ 12.315073][ T90] ? __lock_acquire+0x518/0xc20 [ 12.315078][ T90] ? hvc_write+0x3a0/0x3a0 [ 12.315081][ T90] ? rcu_is_watching+0x16/0xd0 [ 12.315085][ T90] ? lock_acquire+0x13c/0x160 [ 12.315089][ T90] console_emit_next_record+0x252/0x4f0 [ 12.315093][ T90] ? devkmsg_read+0x4e0/0x4e0 [ 12.315097][ T90] ? rcu_is_watching+0x16/0xd0 [ 12.315100][ T90] ? lock_acquire+0x13c/0x160 [ 12.315103][ T90] console_flush_one_record+0x46f/0x710 [ 12.315108][ T90] ? console_emit_next_record+0x4f0/0x4f0 [ 12.315110][ T90] ? __lock_acquire+0x518/0xc20 [ 12.315115][ T90] console_unlock+0xee/0x1f0 [ 12.315118][ T90] ? console_flush_one_record+0x710/0x710 [ 12.315119][ T90] ? rcu_is_watching+0x16/0xd0 [ 12.315122][ T90] ? lock_acquire+0xa0/0x160 [ 12.315126][ T90] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.315127][ T90] ? vprintk_emit+0x320/0x3e0 [ 12.315131][ T90] vprintk_emit+0x37c/0x3e0 [ 12.315135][ T90] ? wake_up_klogd_work_func+0x90/0x90 [ 12.315138][ T90] ? __lock_acquire+0x518/0xc20 [ 12.315142][ T90] _printk+0xc7/0x100 [ 12.315146][ T90] ? snapshot_read.cold+0x21/0x21 [ 12.315148][ T90] ? do_raw_spin_lock+0x131/0x280 [ 12.315151][ T90] ? __rwlock_init+0x150/0x150 [ 12.315155][ T90] ? do_raw_spin_lock+0x131/0x280 [ 12.315158][ T90] do_exit.cold+0x82/0x9c [ 12.315162][ T90] ? exit_notify+0x890/0x890 [ 12.315163][ T90] ? __lock_release.isra.0+0x69/0x1a0 [ 12.315166][ T90] ? rcu_is_watching+0x16/0xd0 [ 12.315170][ T90] do_group_exit+0xb8/0x370 [ 12.315173][ T90] __x64_sys_exit_group+0x3c/0x50 [ 12.315175][ T90] x64_sys_call+0x1567/0x1570 [ 12.315177][ T90] do_syscall_64+0xff/0x530 [ 12.315181][ T90] ? exc_page_fault+0xee/0x100 [ 12.315184][ T90] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.315186][ T90] RIP: 0033:0x7fbd7a8f91b8 [ 12.315189][ T90] Code: Unable to access opcode bytes at 0x7fbd7a8f918e. [ 12.315190][ T90] RSP: 002b:00007fffe34268f8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.315193][ T90] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbd7a8f91b8 [ 12.315194][ T90] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.315195][ T90] RBP: 00007fffe3426a80 R08: 0000561973a215a8 R09: 0000000000000000 [ 12.315196][ T90] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.315197][ T90] R13: 00007fbd7a157050 R14: 00007fbd7ae2ad9e R15: 00005619738b7840 [ 12.315203][ T90]