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OMAP 4430 watchdog timeout debug

alex cheng97961
Prodigy 30 points

Hi,

         We are developing Android tablet with OMAP4430 SoC. And we encountered HW watchdog timer reboot issue and no debug meesage is output (180secs) before system reboot. Is there any in-house debug tools or mechanism to debug this issue?

 

What we have done now:

extend timeout period

==> 1. while issue happen, adb and uart both can't work

==>  2. debug with JTAG(T32), but it can't been stopped to check the status while issue happen

==>  3. enable kernel lockup detector, but no more message show up                

     This watchdog task is the high priority kernel thread to detect the softlockup.

 

Regards,

 

Alex

 

 

  • 0
    Prodigy 150 points

    Hello Alex,

    I might experience a similar issue on our board. I created a topic of this on the forum: http://e2e.ti.com/support/omap/f/849/p/386709/1364368.aspx#1364368

    Can you describe your setup more in detail? Were you able to find the root cause of the issue? 

    Looking forward to your reply

    Best regards,

    Jens