UDF-fs: error (device loop2): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop2): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop2): udf_fill_super: No partition found (1) rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (1 GPs behind) idle=d82/1/0x4000000000000004 softirq=16759/16763 fqs=5199 rcu: (t=10500 jiffies g=12721 q=8189) NMI backtrace for cpu 1 CPU: 1 PID: 7486 Comm: udevd Not tainted 4.19.72 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_dump_cpu_stacks+0x189/0x1d5 kernel/rcu/tree.c:1340 print_cpu_stall kernel/rcu/tree.c:1478 [inline] check_cpu_stall kernel/rcu/tree.c:1550 [inline] __rcu_pending kernel/rcu/tree.c:3293 [inline] rcu_pending kernel/rcu/tree.c:3336 [inline] rcu_check_callbacks.cold+0x5e3/0xd90 kernel/rcu/tree.c:2682 update_process_times+0x32/0x80 kernel/time/timer.c:1636 tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:164 tick_sched_timer+0x47/0x130 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x33b/0xdc0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1067 [inline] smp_apic_timer_interrupt+0x111/0x550 arch/x86/kernel/apic/apic.c:1092 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893 RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline] RIP: 0010:list_empty include/linux/list.h:203 [inline] RIP: 0010:hhf_dequeue+0x58/0xa00 net/sched/sch_hhf.c:426 Code: 48 c1 e8 03 4c 01 e0 48 89 45 c0 49 8d 85 50 03 00 00 48 89 45 c8 48 c1 e8 03 48 89 45 b8 e8 0f de dc fb 48 8b 45 c0 80 38 00 <0f> 85 8d 07 00 00 48 8b 75 d0 49 8b 85 40 03 00 00 49 89 f6 48 39 RSP: 0018:ffff8880ae907568 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffffed1011544868 RBX: ffff88808aa242b8 RCX: ffffffff858e7e8e RDX: 0000000000000100 RSI: ffffffff858e7881 RDI: ffff88808aa242c0 RBP: ffff8880ae9075b8 R08: ffff88809cabe0c0 R09: 0000000000000006 R10: ffff88809cabea30 R11: 00000000ab488a8b R12: dffffc0000000000 R13: ffff88808aa24000 R14: ffff88808aa24358 R15: ffff88808aa24350 dequeue_skb net/sched/sch_generic.c:277 [inline] qdisc_restart net/sched/sch_generic.c:380 [inline] __qdisc_run+0x1e7/0x1960 net/sched/sch_generic.c:398 __dev_xmit_skb net/core/dev.c:3501 [inline] __dev_queue_xmit+0x165c/0x2fe0 net/core/dev.c:3811 dev_queue_xmit+0x18/0x20 net/core/dev.c:3876 neigh_hh_output include/net/neighbour.h:491 [inline] neigh_output include/net/neighbour.h:499 [inline] ip6_finish_output2+0x12fd/0x2550 net/ipv6/ip6_output.c:120 ip6_finish_output+0x574/0xbe0 net/ipv6/ip6_output.c:154 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip6_output+0x235/0x7c0 net/ipv6/ip6_output.c:171 dst_output include/net/dst.h:447 [inline] NF_HOOK include/linux/netfilter.h:289 [inline] ndisc_send_skb+0xf3b/0x1460 net/ipv6/ndisc.c:491 ndisc_send_rs+0x134/0x6d0 net/ipv6/ndisc.c:685 addrconf_rs_timer+0x30f/0x680 net/ipv6/addrconf.c:3821 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers kernel/time/timer.c:1682 [inline] __run_timers kernel/time/timer.c:1650 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1695 __do_softirq+0x25c/0x921 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:seqcount_lockdep_reader_access include/linux/seqlock.h:83 [inline] RIP: 0010:read_seqcount_begin include/linux/seqlock.h:164 [inline] RIP: 0010:set_root+0x19f/0x5a0 fs/namei.c:818 Code: 46 72 88 48 c1 e8 03 42 80 3c 20 00 0f 85 02 04 00 00 48 83 3d 39 22 c4 06 00 0f 84 3a 03 00 00 e8 b6 32 bd ff 4c 89 f7 57 9d <0f> 1f 44 00 00 e8 a7 32 bd ff 4d 8d 75 40 4c 89 f0 48 c1 e8 03 42 RSP: 0018:ffff888085dd7a50 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff88809cabe0c0 RBX: ffff888085dd7bd0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81ae23da RDI: 0000000000000293 RBP: ffff888085dd7ac0 R08: ffff88809cabe0c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8880a425ce00 R14: 0000000000000293 R15: 0000000000000200 path_init+0x122c/0x18f0 fs/namei.c:2207 path_parentat.isra.0+0x22/0x160 fs/namei.c:2365 filename_parentat.isra.0+0x19c/0x410 fs/namei.c:2388 do_renameat2+0x1bf/0xc40 fs/namei.c:4544 __do_sys_rename fs/namei.c:4672 [inline] __se_sys_rename fs/namei.c:4670 [inline] __x64_sys_rename+0x61/0x80 fs/namei.c:4670 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fd3ef9c1527 Code: 32 00 64 83 38 15 74 07 b8 ff ff ff ff 5b c3 48 89 df e8 1c c1 07 00 85 c0 75 ed 31 c0 eb d3 90 90 90 90 b8 52 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 f8 32 00 31 d2 48 29 c2 64 RSP: 002b:00007fff57360fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd3ef9c1527 RDX: 00007fd3efcf2e98 RSI: 00007fff57361010 RDI: 00007fff57361410 RBP: 00000000013faa10 R08: 00007fd3f03347a0 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001581320 R13: 00000000013f0030 R14: 00007fff57361010 R15: 0000000000000001 rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-... } 10751 jiffies s: 1157 root: 0x2/. rcu: blocking rcu_node structures: Task dump for CPU 1: udevd R running task 26992 7486 3602 0x80000008 Call Trace: