Jetson TX2 Unexpected reboot or restart

Robotics & Edge Computing Jetson Systems Jetson TX2
1

I’ve two TX2 with Developer Kit Carrier Board,Sometime it will Unexpected reboot when I’m running my program.

One shows:

cat /proc/device-tree/chosen/reset/pmc-reset-reason/reset-level 
1
cat /proc/device-tree/chosen/reset/pmc-reset-reason/reset-source 
BCCPLEXWDT
cat /proc/device-tree/chosen/reset/pmic-reset-reason/reason 
NIL_OR_MORE_THAN_1_BIT 
cat /proc/device-tree/chosen/reset/pmic-reset-reason/register-value 
0x00

the other shows:

cat /proc/device-tree/chosen/reset/pmc-reset-reason/reset-level 
1
cat /proc/device-tree/chosen/reset/pmc-reset-reason/reset-source 
MAINSWRST
cat /proc/device-tree/chosen/reset/pmic-reset-reason/reason 
NIL_OR_MORE_THAN_1_BIT 
cat /proc/device-tree/chosen/reset/pmic-reset-reason/register-value 
0x00

Could any one please tell me more about"BCCPLEXWDT" “MAINSWRST” and “NIL_OR_MORE_THAN_1_BIT”?
If anyone knows what could be going on, help would be deeply appreciated.
Thanks!

2

Hi,
For reference, please share the release version by executing ‘$ head -1 /etc/nv_tegra_release’

A general cause of reboot is overheat. Please run tegrastats and check if temperature of certain hardware blocks goes to high value.

3

Please also try to dump the serial console and see if you could see the error log right before the system reboot.

BCCPLEXWDT → Looks like it is triggered by the wdt (watchdog timer).

4

I have this:
$ head -1 /etc/nv_tegra_release

R28 (release), REVISION: 2.1, GCID: 11272647, BOARD: t186ref, EABI: aarch64, DATE: Thu May 17 07:29:06 UTC 2018

5

Hi WayneWWW:
Is there some detailed information or documentation to explain the meaning of “BCCPLEXWDT” “MAINSWRST” and “NIL_OR_MORE_THAN_1_BIT”?

6

There is no update from you for a period, assuming this is not an issue any more.
Hence we are closing this topic. If need further support, please open a new one.
Thanks

Hi,

The information of this should refer to the pmic datatsheet. However, generally such issue may be triggered by many kind of reasons.

It could be the power or thermal issue if your device went a sudden shutdown.

  1. Could you share what kind of application/program you are using?

  2. How frequently does this issue happen?

  3. Could you running the tegrastats with your program simultaneously and share the last value observed before shutdown?

7

So where should I find the pmic datatsheet, please? Is it tx2 exclusive or not？

8

Hi surefyyq,

Please help to open a new topic with more details.

Thanks