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    t113i + openwrt 21.02 RCU报错，严重时导致板子卡死

    Linux
    2
    2
    2003
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    • Z
      zenghw LV 2 last edited by

      多个板子出现rcu异常，最严重导致板子卡死，串口和网卡均无法进入系统，相关日志如下，各位大神，指导下：

      f0057963-e938-47a2-b20d-75195f577976-image.png

      其中dmesg报错中提到两个进程 P12134 P11965，wwan0是4G模块接口名；另外ifconfig wwan0进程变成D，这个会是导致modprobe RCU告警的吗？

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      • A
        awwwwa LV 8 last edited by

        看一下编写的驱动是否出现死锁

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