Watchdog reboot on overloading IPU with Linux 4.1.15 in iMX6Q

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Watchdog reboot on overloading IPU with Linux 4.1.15 in iMX6Q

922 Views
ivyliu
Contributor IV

Hi,

We are using Linux 4.1.15 in iMX6Q (iMX6Q). The display resolution is 1920x120

When we overloading IPU by keep queuing a buffer to IPU for displaying in a gapless loop, and with watchdog enabled, the monitor will reset randomly, in 30min - 11 hours. This issue happened in room temperature. 

When the watchdog is disabled, there is no issue with the same test.

The issue happened very randomly, we have thought about the CPU temperature, but when we increased the CPU temperature to 60C - 80C, the issue did not happen.

Have someone had the similar issue?

Could someone help us with this issue?

Thanks and Best Regards,

Ivy

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7 Replies

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ivyliu
Contributor IV

@joanxie  Hi Joanxie,

 Do you have any thoughts on this issue?

Thanks and Best regards,

Ivy

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joanxie
NXP TechSupport
NXP TechSupport

did you test your own customized board, right? all of boards have this issue or only some of them?

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ivyliu
Contributor IV

Hi Joanxie,

Yes, it is on our customized board. The issue happens on >95% boards.

Thanks and Best Regards,

Ivy

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ivyliu
Contributor IV

Hi Joanxie,

Yes, it is on our customized board. It happened on >95% boards.

Thanks and Best Regards,

Ivy

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joanxie
NXP TechSupport
NXP TechSupport

I have already  mailed to you, pls check

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795 Views
ivyliu
Contributor IV

Hi Joan,

Not sure why I did not get your email.

Could you please help to send it again?

 

Thanks and Best Regards,

Ivy

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joanxie
NXP TechSupport
NXP TechSupport

did you get support from any distributor? I got the same questions from them, if yes, pls contact them

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