imx6q运行出现undefined instruction

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imx6q运行出现undefined instruction

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0609ccj
Contributor I

内核奔溃.jpg

1. 出现这个情况是我在几百次重启的时候会出现这个问题

2. 在系统里面对tar.bz2文件进行解压,或者向设备传输文件的时候出现内核奔溃的概率比较大

不知道什么原因引起的,请问有什么排查定位问题的方案么?

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weidong_sun
NXP TechSupport
NXP TechSupport

Hi,

  从log上看,是内存出错的问题造成的。考虑到几百次重启才会有这样的问题发生,那么初步估计内存可能处于稳定与不稳定的临界位置。这个可能是由于内存部分PCB Layout差异造成的。

 那么,请你用i.MX6 DDR STRESS test tool重新对内存进行压力测试,按照测试结果,在u-boot中对内存重新配置,实在不行把内存降低到400MHz,然后再做较长时间的测试,再看是否出现类似情况。

https://community.nxp.com/docs/DOC-105652 

---English---

From the log, it is caused by the memory error. Considering that hundreds of reboots will cause such problems, it is preliminarily estimated that the memory may be in a critical position of stability and instability. This may be caused by PCB layout difference of memory part.
Then, please use i.mx6 DDR stress test tool to re test the memory pressure. According to the test results, re configure the memory in u-boot. It's really not possible to reduce the memory to 400MHz, and then test for a long time to see if similar situation occurs.

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Have a nice day!

BR,

Weidong

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