812225 - crash in nsEventStateManager::FillInEventFromGestureDown

Status: RESOLVED WONTFIX

(Core :: DOM: UI Events & Focus Handling, defect)

Description

[Jim Mathies [:jimm]]

This bug was filed from the Socorro interface and is 
report bp-13181cb4-c816-4639-9a72-08e122121115 .
============================================================= 

reports - ttp://tinyurl.com/afq7d33

https://crash-stats.mozilla.com/report/index/13181cb4-c816-4639-9a72-08e122121115

This is in MetroFirefox, and is currently the top crasher, although we don't have a lot of data yet.

Comment 1

[Jim Mathies [:jimm]]

This might be caused by something down in the winrt widget layer since the line the crash occurs on is

nsIntPoint tmpPoint = aEvent->widget->WidgetToScreenOffset();

Comment 2

[Olli Pettay [:smaug][[e-mail]]]

Null widget? Some bug how events are dispatched?

Comment 3

[Jim Mathies [:jimm]]

(In reply to Olli Pettay [:smaug] from comment #2)
> Null widget? Some bug how events are dispatched?

Probably. Odd though since the up times are all over the place. Something like this is more likely at startup. We'll have to audit all of our event sending.

Comment 4

[Brian R. Bondy [:bbondy]]

Jim you may want to take a stab at this, I reviewed the code but could not find the reason.

Comment 5

[Jim Mathies [:jimm]]

We haven't seen this since the 11-14 build, so I'm not too worried. Actually what worries me more is that we have people who are still on the 11-14 build. :) I think there's a bug filed someplace on improving update rates by doing updates in metro vs. desktop.

Comment 6

[Scoobidiver (away)]

(In reply to Jim Mathies [:jimm] from comment #5)
> We haven't seen this since the 11-14 build, so I'm not too worried.
It still occurs and is #2 top crasher in MetroFirefox: https://crash-stats.mozilla.com/report/list?signature=nsEventStateManager%3A%3AFillInEventFromGestureDown%28nsMouseEvent*%29

Comment 7

[Jim Mathies [:jimm]]

The stacks here appear to be in the desktop product.

Comment 8

[Sylvestre Ledru [:Sylvestre]]

Closing because no crash reported since 12 weeks.