使用3588J核心板，自制的底板，启动ubuntu 内核报错，麻烦看下什么问题
使用3588J核心板，自制的底板，启动ubuntu 内核报错，麻烦看下什么问题[ 5.513776] mpp_rkvdec2 fdc30000.rkvdec-ccu: probing finish
[ 5.513848] mpp_rkvdec2 fdc38100.rkvdec-core: Adding to iommu group 12
[ 5.713701] rk-pcie fe170000.pcie: PCIe Linking... LTSSM is 0x3
[ 5.739255] rk-pcie fe170000.pcie: PCIe Linking... LTSSM is 0x3
[ 5.765920] rk-pcie fe170000.pcie: PCIe Linking... LTSSM is 0x3
[ 5.792587] rk-pcie fe170000.pcie: PCIe Linking... LTSSM is 0x3
[ 5.819253] rk-pcie fe170000.pcie: PCIe Linking... LTSSM is 0x3
[ 5.845920] rk-pcie fe170000.pcie: PCIe Linking... LTSSM is 0x3
[ 5.872587] rk-pcie fe170000.pcie: PCIe Linking... LTSSM is 0x3
[ 5.899253] rk-pcie fe170000.pcie: PCIe Linking... LTSSM is 0x3
[ 5.925920] rk-pcie fe170000.pcie: PCIe Linking... LTSSM is 0x3
[ 5.952587] rk-pcie fe170000.pcie: PCIe Linking... LTSSM is 0x3
[ 8.379252] rk-pcie fe170000.pcie: PCIe Link Fail
[ 8.379258] rk-pcie fe170000.pcie: failed to initialize host
[ 95.089233] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[ 95.089257] rcu: 4-...!: (1 GPs behind) idle=c32/1/0x4000000000000000 softirq=131/134 fqs=103
[ 95.089269] rcu: 5-...!: (1 GPs behind) idle=aca/1/0x4000000000000000 softirq=28/29 fqs=103
[ 95.089281](detected by 1, t=26871 jiffies, g=-1091, q=24)
[ 95.089289] Task dump for CPU 4:
[ 95.089297] task:swapper/0 state:Rrunning task stack: 0 pid: 1 ppid: 0 flags:0x00000008
[ 95.089314] Call trace:
[ 95.089329]__switch_to+0x130/0x1a0
[ 95.089339]0xffffffc0115b22e0
[ 95.089346] Task dump for CPU 5:
[ 95.089354] task:rk-pcie state:Rrunning task stack: 0 pid:143 ppid: 2 flags:0x00000008
[ 95.089370] Call trace:
[ 95.089380]__switch_to+0x130/0x1a0
[ 95.089392]of_find_node_by_phandle+0xa0/0xd4
[ 95.089404] rcu: rcu_sched kthread starved for 26012 jiffies! g-1091 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
[ 95.089413] rcu: Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
[ 95.089420] rcu: RCU grace-period kthread stack dump:
[ 95.089428] task:rcu_sched state:I stack: 0 pid: 11 ppid: 2 flags:0x00000008
[ 95.089440] Call trace:
[ 95.089449]__switch_to+0x130/0x1a0
[ 95.089460]__schedule+0x3e8/0x5bc
[ 95.089470]schedule+0x80/0xc8
[ 95.089479]schedule_timeout+0xcc/0xf0
[ 95.089491]rcu_gp_kthread+0x2ac/0x840
[ 95.089501]kthread+0xf8/0x108
[ 95.089511]ret_from_fork+0x10/0x30
自制底板需要自己调通 kernel 才行，没有用到的功能得关闭，例如 pcie 多半是你开了pcie，没给pcie对应controler的clk 你把PCIE相关的设备树全部关了试一下
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