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rcu_preempt issue

Question asked by 57063778@qq.com on Dec 17, 2018
Latest reply on Dec 19, 2018 by igorpadykov

Hi,all

 

    I am facing a Linux kernel dump issue after running about 48 hours. The BSP is Yocto with Linux 3.14.28 and the CPU is imx6Q. The dump information is as follow and how to fix the issue? Thanks in advance.

 

Dec 5 05:36:35 linux user.err kernel: INFO: rcu_preempt detected stalls on CPUs/tasks: { 2} (detected by 1, t=2102 jiffies, g=45107986, c=45107985, q=5227)
Dec 5 05:36:35 linux user.info kernel: Task dump for CPU 2:
Dec 5 05:36:35 linux user.info kernel: grep R running 0 1231 1228 0x00000002
Dec 5 05:36:35 linux user.warn kernel: [<80716800>] (__schedule) from [<a9c94020>] (0xa9c94020)

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