rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2131 jiffies s: 2573 root: 0x2/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3226 Comm: syz-executor.2 Not tainted 6.1.59-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:119 [inline] RIP: 0010:lock_release+0x53/0x2b0 kernel/locking/lockdep.c:5674 Code: 05 e2 af ce 7e 89 c0 48 0f a3 05 e0 fc 53 04 73 05 e8 11 c1 03 00 83 3d be 2e 54 04 00 0f 84 d3 01 00 00 65 8b 05 ad 0d cf 7e <85> c0 0f 85 c4 01 00 00 65 4c 8b 2d 4d 05 cf 7e 41 83 bd 3c 0a 00 RSP: 0018:ffffc90002767950 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffff888178ccd000 RCX: 000000000000008b RDX: 0000000000000002 RSI: ffffffff84f17f0f RDI: ffffffff84d35191 RBP: ffffffff83f5c8d9 R08: 0000000000000007 R09: ffffffff83f5c959 R10: 0000000000000002 R11: ffff888176e61bc0 R12: ffffc900027679b0 R13: ffffffffffffffff R14: ffffc90002767a90 R15: ffffffff853b5950 FS: 00005555564cc480(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe3e499c38 CR3: 0000000176ef0000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_lock_release include/linux/rcupdate.h:311 [inline] rcu_read_unlock include/linux/rcupdate.h:780 [inline] xa_find+0x12b/0x170 lib/xarray.c:2026 devlinks_xa_find_get+0x61/0x260 net/devlink/leftover.c:300 devlinks_xa_find_get_first net/devlink/leftover.c:328 [inline] devlink_nl_cmd_port_get_dumpit+0x52/0x270 net/devlink/leftover.c:1556 netlink_dump+0x227/0x480 net/netlink/af_netlink.c:2231 __netlink_dump_start+0x2b0/0x370 net/netlink/af_netlink.c:2335 genl_family_rcv_msg_dumpit net/netlink/genetlink.c:714 [inline] genl_family_rcv_msg net/netlink/genetlink.c:830 [inline] genl_rcv_msg+0x4bf/0x610 net/netlink/genetlink.c:850 netlink_rcv_skb+0x10a/0x1d0 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+0x46d/0x530 net/netlink/af_netlink.c:1352 netlink_sendmsg+0x57f/0x660 net/netlink/af_netlink.c:1874 sock_sendmsg_nosec net/socket.c:716 [inline] __sock_sendmsg net/socket.c:728 [inline] __sys_sendto+0x382/0x440 net/socket.c:2134 __do_sys_sendto net/socket.c:2146 [inline] __se_sys_sendto net/socket.c:2142 [inline] __x64_sys_sendto+0x24/0x30 net/socket.c:2142 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f49d867e7dc Code: 1a 51 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 60 51 02 00 48 8b RSP: 002b:00007ffe5969b070 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f49d92c4620 RCX: 00007f49d867e7dc RDX: 0000000000000034 RSI: 00007f49d92c4670 RDI: 0000000000000005 RBP: 0000000000000000 R08: 00007ffe5969b0c4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 R13: 00007ffe5969b138 R14: 00007f49d92c4670 R15: 0000000000000000