[oerv 24.03 sp3] lichee pi 4a 运行 ltp 测试失败 kernel panic

**【缺陷描述】：lichee pi 4a 运行 ltp read_all_sys 测试会导致 kernel panic**

**一、缺陷信息**

环境信息
【OS版本】
```
[root@openeuler-riscv64 ~]# cat /etc/os-release 
NAME="openEuler"
VERSION="24.03 (LTS-SP3)"
ID="openEuler"
VERSION_ID="24.03"
PRETTY_NAME="openEuler 24.03 (LTS-SP3)"
ANSI_COLOR="0;31"
```
【内核版本】

```
[root@openeuler-riscv64 ~]# uname -a
Linux openeuler-riscv64 6.6.0-115.0.0.94.oe2403sp3.riscv64 #1 SMP Fri Nov  7 04:21:39 UTC 2025 riscv64 riscv64 riscv64 GNU/Linux
```

【硬件信息】

Sipeed Lichee Pi4a
th1520 16 + 128GB
在 sg2042 上能正常跑完，在荔枝派上稳定失败

```
[root@openeuler-riscv64 ~]# df -Th
Filesystem     Type      Size  Used Avail Use% Mounted on
/dev/root      ext4      111G  5.6G  101G   6% /
devtmpfs       devtmpfs  7.4G     0  7.4G   0% /dev
tmpfs          tmpfs     7.8G     0  7.8G   0% /dev/shm
tmpfs          tmpfs     3.1G  1.1M  3.1G   1% /run
tmpfs          tmpfs     4.0M     0  4.0M   0% /sys/fs/cgroup
tmpfs          tmpfs     7.8G     0  7.8G   0% /tmp
/dev/mmcblk0p2 ext4      459M  299M  131M  70% /boot
tmpfs          tmpfs     1.6G  4.0K  1.6G   1% /run/user/0
```

【实际结果】描述出问题的结果和影响

【问题复现步骤】

[openEuler RISC-V 执行 LTP 功能测试](https://gitee.com/jean9823/openEuler_riscv_test/blob/master/openEuler_riscv_kernel_test/ltp/openEuler%20RISC-V%E6%89%A7%E8%A1%8CLTP%E5%8A%9F%E8%83%BD%E6%B5%8B%E8%AF%95.md)

编译 ltp 后运行 ./runltp 在运行到 read_all_sys 时必导致 kernel panic
runltp 进程的最后输出

```
<<<test_start>>>
tag=read_all_sys stime=1763311377
cmdline="read_all -d /sys -q -r 3"
contacts=""
analysis=exit
<<<test_output>>>
tst_test.c:2025: [1;34mTINFO: [0mLTP version: 20250930
tst_test.c:2028: [1;34mTINFO: [0mTested kernel: 6.6.0-115.0.0.94.oe2403sp3.riscv64 #1 SMP Fri Nov  7 04:21:39 UTC 2025 riscv64
tst_kconfig.c:88: [1;34mTINFO: [0mParsing kernel config '/proc/config.gz'
tst_test.c:1846: [1;34mTINFO: [0mOverall timeout per run is 0h 02m 10s
read_all.c:601: [1;34mTINFO: [0mWorker timeout set to 10% of runtime: 1000ms
read_all.c:477: [1;34mTINFO: [0mWorker 107272 (0): Stuck for 1000001us, restarting it
read_all.c:477: [1;34mTINFO: [0mWorker 107273 (1): Stuck for 1000001us, restarting it
read_all.c:413: [1;34mTINFO: [0mWorker 107272 (0): Last popped '/sys/kernel/tracing/events/lock/contention_begin/enable'
read_all.c:413: [1;34mTINFO: [0mWorker 107273 (1): Last popped '/sys/kernel/tracing/events/printk/enable'
read_all.c:477: [1;34mTINFO: [0mWorker 107274 (2): Stuck for 1002707us, restarting it
read_all.c:413: [1;34mTINFO: [0mWorker 107274 (2): Last popped '/sys/kernel/tracing/events/irq_matrix/irq_matrix_free/filter'
read_all.c:477: [1;34mTINFO: [0mWorker 107275 (0): Stuck for 1000115us, restarting it
read_all.c:413: [1;34mTINFO: [0mWorker 107275 (0): Last popped '/sys/kernel/tracing/events/xfs/xfs_buf_hold/format'
read_all.c:477: [1;34mTINFO: [0mWorker 107276 (1): Stuck for 1002769us, restarting it
read_all.c:477: [1;34mTINFO: [0mWorker 107277 (2): Stuck for 1000003us, restarting it
read_all.c:413: [1;34mTINFO: [0mWorker 107277 (2): Last popped '/sys/kernel/tracing/events/xfs/xfs_iext_insert/trigger'
read_all.c:413: [1;34mTINFO: [0mWorker 107276 (1): Last popped '/sys/kernel/tracing/events/xfs/xfs_iext_remove/trigger'
read_all.c:477: [1;34mTINFO: [0mWorker 107278 (0): Stuck for 1889668us, restarting it
read_all.c:477: [1;34mTINFO: [0mWorker 107280 (1): Stuck for 1884373us, restarting it
read_all.c:477: [1;34mTINFO: [0mWorker 107279 (2): Stuck for 1885553us, restarting it
read_all.c:413: [1;34mTINFO: [0mWorker 107280 (1): Last popped '/sys/devices/platform/aon_subsys/aon_subsys:appcpu_dvddm/regulator/regulator.4/requested_microamps'
read_all.c:413: [1;34mTINFO: [0mWorker 107279 (2): Last popped '/sys/devices/platform/aon_subsys/aon_subsys:appcpu_dvddm/regulator/regulator.4/max_microvolts'
read_all.c:413: [1;34mTINFO: [0mWorker 107278 (0): Last popped '/sys/devices/platform/aon_subsys/aon_subsys:appcpu_dvddm/regulator/regulator.4/requested_microamps'
[ 5125.319860][T107283] block mmcblk0boot0: the capability attribute has been deprecated.
[ 5125.580415][T107282] i2s reg[0x0]=0x0
[ 5125.580514][T107281] i2s reg[0x0]=0x0
[ 5125.580585][T107283] i2s reg[0x0]=0x0
[ 5125.580592][T107283] i2s reg[0x4]=0x100
[ 5125.580595][T107283] i2s reg[0x8]=0x100
[ 5125.580598][T107283] i2s reg[0xc]=0xf0
[ 5125.580601][T107283] i2s reg[0x10]=0x0
[ 5125.580605][T107283] i2s reg[0x14]=0x0
[ 5125.580608][T107283] i2s reg[0x18]=0x0
[ 5125.580612][T107283] i2s reg[0x1c]=0x10
[ 5125.580615][T107283] i2s reg[0x20]=0x10
[ 5125.580617][T107283] i2s reg[0x24]=0x0
[ 5125.580620][T107283] i2s reg[0x28]=0x0
[ 5125.580626][T107283] i2s reg[0x2c]=0xcccc
[ 5125.580628][T107283] i2s reg[0x30]=0x1ffffff
[ 5125.580631][T107283] i2s reg[0x34]=0x0
[ 5125.580634][T107283] i2s reg[0x38]=0x0
[ 5125.580636][T107283] i2s reg[0x3c]=0x0
[ 5125.580641][T107283] i2s reg[0x40]=0x0
[ 5125.580643][T107283] i2s reg[0x44]=0x10
[ 5125.580646][T107283] i2s reg[0x48]=0x0
[ 5125.580648][T107283] i2s reg[0x4c]=0x0
[ 5125.580650][T107283] i2s reg[0x50]=0x0
[ 5125.580653][T107283] i2s reg[0x54]=0x0
[ 5125.580655][T107283] i2s reg[0x58]=0x0
[ 5125.580657][T107283] i2s reg[0x5c]=0x0
[ 5125.580660][T107283] i2s reg[0x60]=0x0
[ 5125.580662][T107283] i2s reg[0x64]=0x0
[ 5125.580664][T107283] i2s reg[0x68]=0x0
[ 5125.580668][T107283] i2s reg[0x6c]=0x0
[ 5125.580674][T107283] Unable to handle kernel access to user memory without uaccess routines at virtual address 0000000000000204
[ 5125.580683][T107283] Oops [#1]
[ 5125.580686][T107283] Modules linked in: vfio vhost_net tap vhost_vsock vmw_vsock_virtio_transport_common vhost vhost_iotlb vsock binfmt_misc nfsv3 tls tun brd ntfs exfat btrfs blake2b_generic xor raid6_pq xfs sctp ip6_udp_tunnel udp_tunnel nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables libcrc32c onboard_usb_hub aic8800_bsp dwc3 udc_core roles rtw88_8723ds rtw88_8723d rtw88_sdio rtw88_core etnaviv mr75203 th1520_adc rtc_xgene gpu_sched dwc3_xuantie pwm_fan uio_pdrv_genirq uio sch_fq_codel nfnetlink
[ 5125.580869][T107283] CPU: 1 PID: 107283 Comm: read_all Not tainted 6.6.0-115.0.0.94.oe2403sp3.riscv64 #1
[ 5125.580876][T107283] Hardware name: Sipeed Lichee Pi 4A 16G (DT)
[ 5125.580879][T107283] epc : regmap_read+0x16/0x5a
[ 5125.580896][T107283]  ra : th1520_i2s_show+0x70/0xb2
[ 5125.580907][T107283] epc : ffffffff809b2772 ra : ffffffff80cd7f4e sp : ffffffc800cf3c60
[ 5125.580912][T107283]  gp : ffffffff8268fb90 tp : ffffffd91cb43900 t0 : ffffffff82185340
[ 5125.580917][T107283]  t1 : ffffffff813179d0 t2 : ffffffff81245bd8 s0 : ffffffc800cf3c90
[ 5125.580920][T107283]  s1 : 0000000000000000 a0 : 0000000000000000 a1 : 0000000000000000
[ 5125.580929][T107283]  a2 : ffffffc800cf3c94 a3 : 0000000000000008 a4 : 0000000000000000
[ 5125.580932][T107283]  a5 : 0000000000000000 a6 : 0000000000000000 a7 : ffffffffffffffff
[ 5125.580937][T107283]  s2 : ffffffd90119a240 s3 : 0000000000000100 s4 : ffffffd907711600
[ 5125.580941][T107283]  s5 : 0000000000001000 s6 : 0000000000000000 s7 : ffffffd9ad11ee38
[ 5125.580946][T107283]  s8 : 0000000000400cc0 s9 : fffffffffffff000 s10: ffffffd9ad11ee48
[ 5125.580951][T107283]  s11: 000000007ffff000 t3 : 0000003f911f9f62 t4 : ffffffffffffffff
[ 5125.580955][T107283]  t5 : 0000000395e388b0 t6 : ffffffff82746a32
[ 5125.580959][T107283] status: 0000000200000120 badaddr: 0000000000000204 cause: 000000000000000d
[ 5125.580964][T107283] [<ffffffff809b2772>] regmap_read+0x16/0x5a
[ 5125.580972][T107283] [<ffffffff80cd7f4e>] th1520_i2s_show+0x70/0xb2
[ 5125.580980][T107283] [<ffffffff80984204>] dev_attr_show+0x1c/0x4c
[ 5125.580991][T107283] [<ffffffff803cc23c>] sysfs_kf_seq_show+0x74/0xc8
[ 5125.581002][T107283] [<ffffffff803caa34>] kernfs_seq_show+0x20/0x28
[ 5125.581010][T107283] [<ffffffff80354950>] seq_read_iter+0x156/0x32a
[ 5125.581017][T107283] [<ffffffff803cb8d0>] kernfs_fop_read_iter+0x3a/0x42
[ 5125.581027][T107283] [<ffffffff803229e2>] vfs_read+0x1a2/0x220
[ 5125.581041][T107283] [<ffffffff803234e6>] ksys_read+0x62/0xde
[ 5125.581051][T107283] [<ffffffff80323582>] __riscv_sys_read+0x20/0x28
[ 5125.581058][T107283] [<ffffffff810e5262>] do_trap_ecall_u+0xac/0x19c
[ 5125.581068][T107283] [<ffffffff810f22e8>] ret_from_exception+0x0/0x64
[ 5125.581086][T107283] Code: 0000 0013 0000 7179 f022 f406 ec26 e84a e44e 1800 (2783) 2045 
[ 5125.581093][T107283] ---[ end trace 0000000000000000 ]---
[ 5125.581106][T107283] th1520-event soc:th1520-event: set rebootmode:0x22
[ 5125.581112][T107283] Kernel panic - not syncing: Fatal exception
[ 5125.581116][T107283] SMP: stopping secondary CPUs
[ 5126.247822][T107283] SMP: failed to stop secondary CPUs 1-2
[ 5126.247831][T107283] [panic_cpufreq_notifier_call]Match the clock sw status to the hw after rst
[ 5126.669183][T107283] ---[ end Kernel panic - not syncing: Fatal exception ]---
```

openEuler/RISC-V

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