AnsweredAssumed Answered

i.MX6DP hangs when reaching >70C

Question asked by Rostyslav Khudolii on Jun 18, 2018
Latest reply on Oct 18, 2018 by Rostyslav Khudolii

Hi all,

 

We're currently working with an i.MX6DP based device and encountered a strange, yet critical issue.

Some of our devices (i.MX6DP rev1.1) hang when reaching a temperature of ~74-79C and then get restarted by a watchdog. At the moment of hang these are the last kernel messages we see:

[ 100.356301] imx-ipuv3 2400000.ipu: IPU Warning - IPU_INT_STAT_10 = 0x00080000
[ 100.623022] imx-ipuv3 2400000.ipu: IPU Warning - IPU_INT_STAT_

On the other hand, the rest of the devices works perfectly at ~90C.

Moreover, i.MX6DP rev1.0 devices didn't have this problem at all.

Could someone shed some light on this, please? 

Is there per-revision errata we can check? I found this, but I don't see any revision-specific problems.

 

Software-wise we're using a customized Linux system based on Linux 4.9.11 from NXP.

Outcomes