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AM620-Q1: sometimes reboot failed

XiulinLiu
Prodigy 70 points
Part Number: AM620-Q1

Tool/software:

Hi, Dear Expert

    1. Current SDK version is Processor SDK 10.00.07.04.  

    2. reboot log see journal_reboot_failed_05131413.txt.

    3. getty@tty1.service  can not exit.  

    4. echo "logs" > /dev/ttyS2, can not return and no msg output on uart.  when I unbind the tty driver(omap8250_platform_driver), then the device reboot.

Thanks,

Xiulin Liu

journal_reboot_failed_05131413.txt

  • 0
    TI__Guru**** 168311 points

    Hi Xiulin,

    XiulinLiu said:
    4. echo "logs" > /dev/ttyS2, can not return and no msg output on uart.

    When did you run this command? I don't find it in the attached log.

    From the log it doesn't seem you are using the roofs provided in the SDK. Can you please test with the rootfs provided in the SDK to see if the problem also happens?

  • 0 in reply to Bin Liu
    Prodigy 70 points

    Hi Bin Liu,

       1. When did you run this command? I don't find it in the attached log.

          After executing the reboot command and waiting for a few minutes, the device did not restart. Then adb logged in to the device to check the status, saved the journal log, and then executed the echo command.

       2. From the log it doesn't seem you are using the roofs provided in the SDK. Can you please test with the rootfs provided in the SDK to see if the problem also happens?

        We have added some of our services to rootfs, but we do not have the SDK rootfs you provided. Currently, only one board can reproduce this issue, and the probability of reproduction is very low. It may take a day to reproduce it.

       3. Below are the logs of a normal reboot

    last_journal_reboot_05131413.txt

    Thanks

  • 0 in reply to XiulinLiu
    TI__Guru**** 168311 points

    Hi Xiulin,

    I never had such issue reported before, so I cannot think of anything could cause the problem if it was not due to systemd bug or misconfiguration). But since you only have one board showing the problem, you might want to check the board as well, such as review the schematics, problem the signals and power rails.

    XiulinLiu said:
    but we do not have the SDK rootfs you provided

    The SDK rootfs is provided in the SDK package, in the "filesystem" directory once you downloaded the SDK installer from ti.com and installed it on a Linux PC.