rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5290 (detected by 0, t=10502 jiffies, g=166137, q=2752 ncpus=2) task:syz-executor.3 state:R running task stack:25280 pid:5290 ppid:2174 flags:0x00004006 Call Trace: sched_show_task+0x4d5/0x670 kernel/sched/core.c:8942 rcu_print_detail_task_stall_rnp kernel/rcu/tree_stall.h:261 [inline] print_other_cpu_stall+0x1299/0x1640 kernel/rcu/tree_stall.h:605 check_cpu_stall kernel/rcu/tree_stall.h:777 [inline] rcu_pending kernel/rcu/tree.c:3890 [inline] rcu_sched_clock_irq+0xad8/0x11f0 kernel/rcu/tree.c:2393 update_process_times+0x147/0x1b0 kernel/time/timer.c:1839 tick_sched_handle kernel/time/tick-sched.c:254 [inline] tick_sched_timer+0x386/0x550 kernel/time/tick-sched.c:1501 __run_hrtimer kernel/time/hrtimer.c:1686 [inline] __hrtimer_run_queues+0x5a7/0xe50 kernel/time/hrtimer.c:1750 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline] __sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:lock_is_held_type+0x137/0x180 Code: 75 40 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 46 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 3c 89 e8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f RSP: 0018:ffffc900048a71e0 EFLAGS: 00000206 RAX: fc0df67723ebde00 RBX: 0000000000000003 RCX: ffff888025c43b80 RDX: ffff888025c43b80 RSI: ffffffff8aebffc0 RDI: ffffffff8b3d2b40 RBP: 0000000000000000 R08: ffffffff8a86306f R09: fffffbfff2092c45 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000246 R13: ffff888025c43b80 R14: 00000000ffffffff R15: ffffffff8e3d1c38 lock_is_held include/linux/lockdep.h:283 [inline] xa_entry include/linux/xarray.h:1198 [inline] xas_find_marked+0x364/0x10e0 lib/xarray.c:1349 xa_find+0x251/0x420 lib/xarray.c:2022 devlinks_xa_find_get+0xf2/0x2d0 net/devlink/leftover.c:300 devlinks_xa_find_get_first net/devlink/leftover.c:328 [inline] devlink_get_from_attrs+0x101/0x320 net/devlink/leftover.c:364 devlink_nl_pre_doit+0x69/0xa50 net/devlink/leftover.c:780 genl_family_rcv_msg_doit net/netlink/genetlink.c:751 [inline] genl_family_rcv_msg net/netlink/genetlink.c:833 [inline] genl_rcv_msg+0xbc1/0xf70 net/netlink/genetlink.c:850 netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2508 genl_rcv+0x24/0x40 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline] netlink_unicast+0x7d8/0x970 net/netlink/af_netlink.c:1352 netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1874 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x5a5/0x8f0 net/socket.c:2514 ___sys_sendmsg net/socket.c:2568 [inline] __sys_sendmsg+0x2a9/0x390 net/socket.c:2597 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f201ce7dda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f201db720c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f201cfabf80 RCX: 00007f201ce7dda9 RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000003 RBP: 00007f201ceca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f201cfabf80 R15: 00007ffc32377028