# 看门狗重启
**URL:** https://forums.developer.nvidia.com/t/topic/383866
**Category:** Jetson Orin NX
**Tags:** reboot, board-design, chinese
**Created:** [September 21, 2026, 9:13am UTC](https://forums.developer.nvidia.com/t/topic/383866 "2026-09-21T09:13:56Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@550399056](https://forums.developer.nvidia.com/u/550399056)
#### Post date: [September 21, 2026, 9:13am UTC](https://forums.developer.nvidia.com/t/topic/383866/1 "2026-09-21T09:13:56Z")
Sep 21 02:49:18 iking kernel: [0.602964] tegra-pwm 32e0000.pwm: PWM clk can sleep in ops
Sep 21 02:49:18 iking kernel: [0.605453] tegra\_dc\_assign\_hw\_data: no matching compatible node
Sep 21 02:49:18 iking kernel: [0.611471] tegradccommon module\_init failed
Sep 21 02:49:18 iking kernel: [0.615739] tegradc module\_init failed
Sep 21 02:49:18 iking kernel: [0.619728] EINJ: ACPI disabled.
Sep 21 02:49:18 iking kernel: [0.621295] tegra-pmc c360000.pmc: scratch reg offset dts data not present
Sep 21 02:49:18 iking kernel: [0.621300] tegra-pmc: ### PMC reset source: BCCPLEXWDT
Sep 21 02:49:18 iking kernel: [0.621302] tegra-pmc: ### PMC reset level: L1
Sep 21 02:49:18 iking kernel: [0.621303] tegra-pmc: ### PMC reset status reg: 0x9
Sep 21 02:49:18 iking kernel: [0.622521] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
Sep 21 02:49:18 iking kernel: [0.624126] printk: console [ttyTCU0] enabled
Sep 21 02:49:18 iking kernel: [0.624656] arm-smmu 12000000.iommu: probing hardware configuration…
Sep 21 02:49:18 iking kernel: [0.624659] arm-smmu 12000000.iommu: SMMUv2 with:
Sep 21 02:49:18 iking kernel: [0.624661] arm-smmu 12000000.iommu: stage 1 translation
Sep 21 02:49:18 iking kernel: [0.624662] arm-smmu 12000000.iommu: stage 2 translation
Sep 21 02:49:18 iking kernel: [0.624663] arm-smmu 12000000.iommu: nested translation
Sep 21 02:49:18 iking kernel: [0.624668] arm-smmu 12000000.iommu: stream matching with 128 register groups
Sep 21 02:49:18 iking kernel: [0.624671] arm-smmu 12000000.iommu: 128 context banks (0 stage-2 only)
Sep 21 02:49:18 iking kernel: [0.626695] arm-smmu 12000000.iommu: Supported page sizes: 0x00001000
[kern.log](https://forums.developer.nvidia.com/uploads/short-url/4KdRzXbzK5B9TzyRKnZxiLx0Frt.log) (50.0 MB)
这个怎么排查啊，偶现的
orin nx 16G ， jetpack5.1.4
我们的设备在客户现场，没办法接调试串口
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### Author:  [@kayccc](https://forums.developer.nvidia.com/u/kayccc)
#### Post date: [September 21, 2026, 11:38pm UTC](https://forums.developer.nvidia.com/t/topic/383866/4 "2026-09-21T23:38:29Z")
Could this issue be reproduced with specific steps?
Happen rate?
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### Author:  [@550399056](https://forums.developer.nvidia.com/u/550399056)
#### Post date: [September 22, 2026, 12:50am UTC](https://forums.developer.nvidia.com/t/topic/383866/5 "2026-09-22T00:50:37Z")
偶现的，没有复现步骤。我也不太清楚怎么能复现问题。有没有什么调试手段，在出现问题的时候能看到相应日志。 或者打开内核的什么log调试？
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### Author:  [@WayneWWW](https://forums.developer.nvidia.com/u/WayneWWW)
#### Post date: [September 22, 2026, 2:27am UTC](https://forums.developer.nvidia.com/t/topic/383866/6 "2026-09-22T02:27:25Z")
> /sys/fs/pstore/
Is there any console-ramoops-0 node in above path?
If there is, check it right after your issue is reproduced.
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### Author:  [@550399056](https://forums.developer.nvidia.com/u/550399056)
#### Post date: [September 22, 2026, 5:05am UTC](https://forums.developer.nvidia.com/t/topic/383866/7 "2026-09-22T05:05:38Z")
内核有什么开关打开可以增加一些调试信息的输出吗？