1092397 - [tako][v2.1] When opening SMS from lockscreen, Messages app sometimes display blue screen

Status: RESOLVED WORKSFORME

(Firefox OS Graveyard :: Gaia::System::Window Mgmt, defect)

Description

[Michael Henretty [:mikehenrty][:mhenretty]]

STR:

1.) Enable passcode and lockscreen/
2.) Lock phone.
3.) Receive SMS message.
4.) Click on the SMS notification on the lockscreen, and then click "Open."
5.) Enter in passcode

Expected result:
Phone unlocks into Messages app and displays the appropriate thread.

Actual result:
Phone unlocks into Messages app and displays a blue screen. To get out of this blue screen, you have to open the task manager and then refocus the app.

Reproducability:
1 out of every 10 or so times. It's really hard to narrow down STR. I'm not even sure this is passcode related, but it is how I found the bug on my dogfood device (tako).

Comment 1

[Tony Chung [:tchung]]

This was reported on Tako device and build.  can you please help?

Comment 2

[Gregor Wagner [:gwagner]]

Do you have a logcat? Does it have any IDB errors?

Comment 3

[Michael Henretty [:mikehenrty][:mhenretty]]

Attachment: [screenshot] Blue screen

Yup, this is indeed still happening. Absolutely nothing useful in logcat.

Comment 4

[Michael Henretty [:mikehenrty][:mhenretty]]

Attachment: [logcat]

Nothing in here jumps out at me.

Comment 5

[Michael Henretty [:mikehenrty][:mhenretty]]

Sam, you fixed a similar bug in 2.1 that was related to Task Manager I believe. Do you have any ideas what might be going on here?

Comment 6

[Sam Foster [:sfoster] (he/him)]

(In reply to Michael Henretty [:mhenretty] from comment #5)
> Sam, you fixed a similar bug in 2.1 that was related to Task Manager I
> believe. Do you have any ideas what might be going on here?

You're probably thinking of bug 1081528. The blue screen in that case was a symptom of an app window not being closed correctly, which in turn was due to TaskManager handling attentionopened events while it should have been hidden and doing nothing. It sounds like this issue some kind of window management race condition, maybe the SMS app is not getting opened as the lockscreen is still locked? Perhaps Alive has more...

Comment 7

[(inactive after 6/18) Alive Kuo [:alive]]

Does https://bugzilla.mozilla.org/show_bug.cgi?id=1074063 not help with this issue?
Anyone who could reproduce this issue could you open debugging for window mgmt?
https://bugzilla.mozilla.org/show_bug.cgi?id=1076605#c17

Comment 8

[(inactive after 6/18) Alive Kuo [:alive]]

Rough guess: When system message asks system app to open message app, it's still locked so the requestForeground failed.

Comment 9

[Michael Henretty [:mikehenrty][:mhenretty]]

(In reply to Alive Kuo [:alive][NEEDINFO!] from comment #7)
> Does https://bugzilla.mozilla.org/show_bug.cgi?id=1074063 not help with this
> issue?
> Anyone who could reproduce this issue could you open debugging for window
> mgmt?
> https://bugzilla.mozilla.org/show_bug.cgi?id=1076605#c17

I'll try with a newer build, and enable debugging if it is still happening.

Comment 10

[William Hsu [:whsu]]

I cannot reproduce it on latest Tako v2.1 build.

* Build information:
 - Gaia-Rev        709840a86b3c82238135603a31a9e437ea09a3df
 - Gecko-Rev       NA
 - Build-ID        20141112061246
 - Version         34.0
 - Device-Name     ff1
 - FW-Release      4.4.4