1367101 - Crash in libxul.so (deleted)@0xc4d2bb -- Crash Reason: MOZ_RELEASE_ASSERT(parentBuildID == childBuildID)

Status: RESOLVED DUPLICATE of bug 1366808

(Core :: DOM: Content Processes, defect)

Description

[Julien Wajsberg [:julienw]]

This bug was filed from the Socorro interface and is 
report bp-fcd4b477-8c63-4180-8ffc-b84410170523.
=============================================================

I'm not so sure about where to file this.

I got several crashes that look like this:
https://crash-stats.mozilla.com/report/index/fcd4b477-8c63-4180-8ffc-b84410170523
https://crash-stats.mozilla.com/report/index/4a4fbbc8-e83b-4e34-aa16-e89ee0170523

With the reason:
MOZ_RELEASE_ASSERT(parentBuildID == childBuildID)

I think this happens when an update is downloaded and applied and the browser is ready to restart to use the new update.

Is it possible that a child is started with the ready update ?

Comment 1

[Julien Wajsberg [:julienw]]

https://crash-stats.mozilla.com/report/index/2202f0b7-3103-47ee-ada9-ab4e30170531

Comment 2

[Julien Wajsberg [:julienw]]

https://crash-stats.mozilla.com/report/index/6db3d20c-310d-4ca4-8b5d-c9f9b0170531

Comment 3

[Julien Wajsberg [:julienw]]

72 crashes in 1 week with this signature, is it relevant ?

https://crash-stats.mozilla.com/search/?moz_crash_reason=%3DMOZ_RELEASE_ASSERT%28parentBuildID%20%3D%3D%20childBuildID%29&product=Firefox&date=%3E%3D2017-05-24T14%3A18%3A00.000Z&date=%3C2017-05-31T14%3A18%3A00.000Z&_sort=-date&_facets=signature&_columns=date&_columns=signature&_columns=product&_columns=version&_columns=build_id&_columns=platform#crash-reports

Comment 4

[Julien Wajsberg [:julienw]]

Another bit of information is I usually have 2 concurrent instances running in the same time, on 2 different profiles. I don't think I got the issue before I used Nightly for my normal browsing (I always used it for my work).

Comment 5

[Julien Wajsberg [:julienw]]

https://crash-stats.mozilla.com/report/index/6db3d20c-310d-4ca4-8b5d-c9f9b0170531

Comment 6

[Julien Wajsberg [:julienw]]

https://crash-stats.mozilla.com/report/index/1e6e4251-ffda-4df8-b9d8-2721b0170602

Comment 7

[Julien Wajsberg [:julienw]]

Hey Robert, is it something you could have a look at ?

Comment 8

[Julien Wajsberg [:julienw]]

Current guess is that it happens when an update is ready AND at least 2 instances of the same binary are running.

Comment 9

[Andrew McCreight [:mccr8]]

This is a known issue that Robert is already working on in bug 1112937 for Windows. I'll dupe it to the generic bug. I don't know why the signature is weird.

Comment 10

[Julien Wajsberg [:julienw]]

Given I'm on Linux, will this be fixed in bug 1112937 as well ?

Comment 11

[Andrew McCreight [:mccr8]]

(In reply to Julien Wajsberg [:julienw] from comment #10)
> Given I'm on Linux, will this be fixed in bug 1112937 as well ?

No, I think that is Windows only. Separate bugs will presumably be needed for Linux and OSX.

Comment 12

[Julien Wajsberg [:julienw]]

So maybe we can reopen this one ? :)