1148647 - Crash when scanning QR code for wifi debugging

Status: RESOLVED WORKSFORME

(DevTools Graveyard :: WebIDE, defect)

Description

[Hubert Figuiere [:hub]]

B2g crashes when scanning the QRCode for wifi debugging.

I'm on Flame

gecko git 43bcefb0f75724ed83ef3905c21bb6ccbc9c5df0
gaia git be2e04b19224e1c617ca513676c208bb1c2f8858

Comment 1

[Hubert Figuiere [:hub]]

I never get any indication it actually read the QR code.

Comment 2

[J. Ryan Stinnett [:jryans] (Use needinfo, replies may be slow)]

Maybe I can find something if I try a debug b2g build...  I've never had much luck getting stacks from b2g crashes...

Comment 3

[Hubert Figuiere [:hub]]

it is not a debug build. but it is a self build.

Comment 4

[Hubert Figuiere [:hub]]

The last lines of the logcat are:

E/Gecko   (  462): [Child 462] ###!!! ABORT: ActorDestroy by IPC channel failure at CompositorChild: file ../../../gecko/gfx/layers/ipc/CompositorChild.cpp, line 335
E/Gecko   (  462): mozalloc_abort: [Child 462] ###!!! ABORT: ActorDestroy by IPC channel failure at CompositorChild: file ../../../gecko/gfx/layers/ipc/CompositorChild.cpp, line 335

Comment 5

[Hubert Figuiere [:hub]]

note: I don't always get this log message.

Comment 6

[J. Ryan Stinnett [:jryans] (Use needinfo, replies may be slow)]

I spent a bit trying to figure this out, but no luck so far.  It does happen to me occasionally.  I'll keep trying to uncover the answer.

Comment 7

[Hubert Figuiere [:hub]]

the good news: it doesn't crash anymore

the bad news: I can't get it to scan. it never recognise. And maybe that's why it doesn't crash.

Isn't there a way to enter the code manually?

Comment 8

[Hubert Figuiere [:hub]]

Here is the logcat:

I/GeckoDump(10682): XXX FIXME : Got a mozContentEvent: devtools-auth
I/GeckoDump(10682): AdbController: capture
I/GeckoDump(10682): AdbController: No auth data, requesting new capture
I/GeckoDump(10682): XXX FIXME : Got a mozContentEvent: devtools-auth
I/GeckoDump(10682): AdbController: capture
I/GeckoDump(10682): AdbController: No auth data, requesting new capture
I/GeckoDump(10682): XXX FIXME : Got a mozContentEvent: devtools-auth
I/GeckoDump(10682): AdbController: capture
I/GeckoDump(10682): AdbController: No auth data, requesting new capture
I/GeckoDump(10682): XXX FIXME : Got a mozContentEvent: devtools-auth
I/GeckoDump(10682): AdbController: capture
I/GeckoDump(10682): AdbController: No auth data, requesting new capture
I/GeckoDump(10682): XXX FIXME : Got a mozContentEvent: devtools-auth
I/GeckoDump(10682): AdbController: capture
I/GeckoDump(10682): AdbController: No auth data, requesting new capture
I/GeckoDump(10682): XXX FIXME : Got a mozContentEvent: devtools-auth
I/GeckoDump(10682): AdbController: capture
I/GeckoDump(10682): AdbController: No auth data, requesting new capture
I/GeckoDump(10682): XXX FIXME : Got a mozContentEvent: devtools-auth
I/GeckoDump(10682): AdbController: capture
I/GeckoDump(10682): AdbController: No auth data, requesting new capture
I/GeckoDump(10682): XXX FIXME : Got a mozContentEvent: devtools-auth
I/GeckoDump(10682): AdbController: capture
I/GeckoDump(10682): XXX FIXME : Got a mozContentEvent: devtools-auth
I/GeckoDump(10682): AdbController: abort
I/GeckoDump(10682): AdbController: No auth data, requesting new capture
I/GeckoDump(10682): XXX FIXME : Got a mozContentEvent: devtools-auth


BTW one of the thing I notice is that it takes a VERY LONG time to autofocus on the QR code. For starters.

Comment 9

[J. Ryan Stinnett [:jryans] (Use needinfo, replies may be slow)]

It's great that the crashes are gone!  Don't worry, I have not forgotten about you. :P

There are several improvements I hope to land soon: bug 1145772 (better resolution capture) and bug 1152836 (make scanning much faster).  Once these are done, I'll flag you here to retest.  In my own testing, it's much smoother and faster with these things applied.

Comment 10

[Hubert Figuiere [:hub]]

OMG it worked !!!!!

Comment 11

[Hubert Figuiere [:hub]]

Marking as "WORKSFORME" since we don't know what made the crash go away.