Suspending console(s) (use no_console_suspend to debug)

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Suspending console(s) (use no_console_suspend to debug)

Postby vk_ap_sw » Tue Sep 06, 2016 3:13 pm

Hello,

when I don't connect my MangoH Board via USB to my PC, the UART Console is suspeding.
How can I avoid that?


.
.
[ 18.882771] adb_open
[ 18.892049] IPv6: ADDRCONF(NETDEV_UP): usb0: link is not ready
Starting tcf-agent: OK
Starting linkmon: [ 19.324950] mbim_open: Open mbim driver
[ 19.327788] mbim_open: Lock mbim_dev->open_excl for open
done
[ 19.344758] mbim_open: USB cable not connected
[ 19.348176] mbim_open: Exit, mbim file opened
[ 19.386754] mbim_read: Requests list is empty. Wait.
run_getty.sh: UART2 (=/dev/ttyHS0) reserved for CONSOLE

Poky (Yocto Project Reference Distro) 1.7.3 swi-mdm9x15 /dev/ttyHSL1

swi-mdm9x15 login: No lease, forking to background

Poky (Yocto Project Reference Distro) 1.7.3 swi-mdm9x15 /dev/ttyHSL1

swi-mdm9x15 login: [ 24.794994] PM: Syncing filesystems ... done.
[ 24.830398] Freezing user space processes ...
[ 24.836777] mbim_read: Waiting failed
[ 24.852617] (elapsed 0.018 seconds) done.
[ 24.855608] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[ 24.863604] Suspending console(s) (use no_console_suspend to debug)
[ 24.876331] smsc95xx 1-1.3.1:1.0 eth0: entering SUSPEND2 mode
[ 24.883320] msm_hsic_host msm_hsic_host: HSIC-USB in low power mode
[ 24.883686] PM: suspend of devices complete after 12.086 msecs
[ 24.885792] PM: late suspend of devices complete after 2.075 msecs
[ 24.887654] PM: noirq suspend of devices complete after 1.831 msecs
[ 24.887868] msm_pm_enter
[ 24.887868] msm_pm_enter: power collapse
[ 24.887868] msm_mpm_irqs_detectable: cannot monitor 000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000
[ 24.887868] msm_pm_enter: return
[ 24.889302] PM: noirq resume of devices complete after 1.342 msecs
[ 24.891561] PM: early resume of devices complete after 1.556 msecs
[ 24.892812] msm_hsic_host msm_hsic_host: HSIC-USB exited from low power mode
[ 24.933801] PM: resume of devices complete after 42.209 msecs
[ 25.014680] Restarting tasks ...
[ 25.023561] mbim_read: Requests list is empty. Wait.
[ 25.049717] done.
[ 25.050816] PM: Syncing filesystems ... done.
[ 25.056096] Freezing user space processes ...
[ 25.063604] mbim_read: Waiting failed
[ 25.067907] (elapsed 0.007 seconds) done.
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Re: Suspending console(s) (use no_console_suspend to debug)

Postby dfrancois » Wed Sep 07, 2016 9:51 am

This happens when you use your mangOH with a DC power and USB configured as an ethernet interface.
I don't know why but in this configuration the module enter in low power mode.

To solve this you can stop (or remove) the legato powerMgr application.
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Re: Suspending console(s) (use no_console_suspend to debug)

Postby MEIEngineer » Fri Sep 09, 2016 12:17 pm

There's no other way to turn this off in the build?
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