AnsweredAssumed Answered

Hang when power on/off imx6 many times

Question asked by tuyen pham on Mar 27, 2017
Latest reply on Mar 30, 2017 by tuyen pham

Dear all,

1. I implement test case: on/off power imx6 1000 times and check it can booting in Linux kernel? I found that sometimes (rate ~20/1000 times) imx6 hang at: switch to ldo_bypass mode!. it can not booting in Linux kernel (as log below)

My questions 1: what is the root cause of this problem? anyone see this problem before?

2. When imx6 booting in Linux to run my application. Sometimes It hang when start some systemd service etc: bluetooth.service....

My questions 2: how about overcome hang when systemd start?

Attachment console booting in question 1.

thanks and regards,

 

## Booting kernel from Legacy Image at 12000000 ...
   Image Name:   Linux-3.10.17-g94bb090-dirty
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    6059768 Bytes = 5.8 MiB
   Load Address: 10008000
   Entry Point:  10008000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 18000000
   Booting using the fdt blob at 0x18000000
   Loading Kernel Image ... OK
OK
switch to ldo_bypass mode!

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