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IMX6 linux3.14.52  INFO: rcu_preempt detected stalls on CPUs/tasks: { 0}

Question asked by 其东 刘 on Oct 10, 2019
Latest reply on Oct 10, 2019 by 其东 刘

Hello everyone, my chip model is IMX6D and the chip frequency is 1G HZ. We are designing with reference to the official website IMX6 development board. We are using a Linux system, the version is 3.14.52. During the use, we encountered the following problems:
INFO: rcu_preempt detected stalls on CPUs/tasks: { 0} (detected by 1, t=2102 jiffies, g=4294967246, c=4294967245, q=231)
Task dump for CPU 0:
imx6_y R running 0 458 1 0x00000002
[<80660550>] (__schedule) from [<80660b98>] (io_schedule+0x70/0x9c)
[<80660b98>] (io_schedule) from [<976b66f4>] (0x976b66f4)
INFO: rcu_preempt detected stalls on CPUs/tasks: { 0} (detected by 1, t=8407 jiffies, g=4294967246, c=4294967245, q=852)
Task dump for CPU 0:
imx6_y R running 0 458 1 0x00000002
[<80660550>] (__schedule) from [<80660b98>] (io_schedule+0x70/0x9c)
[<80660b98>] (io_schedule) from [<976b66f4>] (0x976b66f4)
INFO: rcu_preempt detected stalls on CPUs/tasks: { 0} (detected by 1, t=14712 jiffies, g=4294967246, c=4294967245, q=1483)
Task dump for CPU 0:
imx6_y R running 0 458 1 0x00000002
[<80660550>] (__schedule) from [<80660b98>] (io_schedule+0x70/0x9c)
[<80660b98>] (io_schedule) from [<976b66f4>] (0x976b66f4)

 

Looking forward to anyone’s help.

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