Freezing of tasks aborted on wp7608 of mangOh_red


#1

Hi All,

After powering on the magOH red with wp7608. In the linux console i get the following error and from then the console is unresponsive

root@swi-mdm9x28:/# [ 59.977961] Freezing of tasks aborted after 0.006 seconds

I had updated the software to latest release 9 . Below is the software version. But still the problem exists

root@swi-mdm9x28:~# cm info
Device: WP7608
IMEI: 352913090102771
IMEISV: 4
FSN: XG814285080710
Firmware Version: SWI9X07Y_02.16.02.00 000000 jenkins 2018/[ 28.304945] i2c-msm-v2 78b8000.i2c: NACK: slave not responding, ensure its powered: msgs(n:1 cur:0 tx) bc(rx:0 tx:2) mode:FIFO slv_addr:0x3a MSTR_STS:0x0c1300c8 OPER:0x00000090
04/19 19:59:02
Bootloader Version: SWI9X07Y_02.16.02.00 000000 jenkins 2018/04/19 19:59:02
MCU Version: 002.009
PRI Part Number (PN): 9907762
PRI Revision: 001.002
Carrier PRI Name: GENERIC
Carrier PRI Revision: 002.032_000
SKU: 1103788
Last Reset Cause: Power Down
Resets Count: Expected: 105 Unexpected: 15

Some one faced this problem ?

Thanks,
Siva


#2

Looks like normal behavior to enter sleep mode.

Please try below and see does behavior change:

  1. connect USB cable to PC (driver must be ready)
  2. create wake lock (before it sleep), i.e.

echo test > /sys/power/wake_lock)

  1. enable DevMode

For more info:
https://docs.legato.io/latest/conceptsPwrMgmt.html
https://docs.legato.io/latest/basicTargetDevMode.html

Thx