894609 - Cannot stop b2g process on Leo device

Status: RESOLVED FIXED

(Firefox OS Graveyard :: General, defect)

Description

[Zac C (:zac)]

`adb shell stop b2g` on the Leo device does not stop the b2g process.

This blocks ui-tests automation because we need to be able to stop b2g, fiddle with the device and then start it again between tests.

We have flashed the Mozilla b2g18 build over the top of standard Leo build:

Gecko  http://hg.mozilla.org/releases/mozilla-b2g18/rev/629020cf576b
Gaia  fb9362d34260771d4a00b9a0e10a6bbad397bd3b
BuildID 20130716070204
Version 18.0



'ps' on Leo device
root      152   1     236040 81412 ffffffff 00000000 R /system/b2g/b2g

'ps' on Unagi device
root      110   1     181340 71732 ffffffff 40037330 S /system/b2g/b2g

Comment 1

[Zac C (:zac)]

NB - I included the 'ps' output because I noticed on Leo it was 'R' as opposed to 'S' on Unagi.

Comment 2

[Stephen Donner [:stephend] Not actively reading bugmail]

From IRC: 16:17 m1: stephend: try |adb root| first?

Comment 3

[Zac C (:zac)]

Thanks, |adb reboot| works but I feel it's a workaround. 

I'd like to know why it is different because we don't need it for Unagi/Inari/etc devices. 
I'll keep this bug open for any more feedback I can get.

Comment 4

[Stephen Donner [:stephend] Not actively reading bugmail]

Got this from m1 last night:

16:22 mwu: dietrich: if you're not on a leo device, it'll probably be root by default
16:22 m1: dietrich: -eng builds run |adb shell| as root, -userdebug/-user builds don't
16:22 m1: you get the "shell" user, that can't do much
16:22 m1: (like it can't kill a process running as root)

Comment 5

[Zac C (:zac)]

OK this is an engineering build but it is flashed differently so there must be some subtle difference in the way it is configured.

Comment 6

[Michael Wu [:mwu]]

To be specific, engineering boot partitions provide root. It's safe to always run adb root on all devices.

Comment 7

[Zac C (:zac)]

Have learnt enough today to close this off. Thanks!