1123551 - crash in PR_DestroyCondVar | mozilla::CondVar::~CondVar()

Status: RESOLVED DUPLICATE of bug 1121751

(Core :: Graphics, defect)

Description

[(Away)]

This bug was filed from the Socorro interface and is 
report bp-dfa20b3b-a0cf-4563-949f-cad992150113.
=============================================================

The CondVar's |mCvar| is null. Not entirely clear how we got here from ~CompositorParent -- does it have a CondVar member?

PR_DestroyCondVar
mozilla::CondVar::~CondVar()
mozilla::layers::CompositorParent::~CompositorParent()
mozilla::layers::CompositorParent::`scalar deleting destructor'(unsigned int)
mozilla::layers::DeleteOnMainThreadTask<mozilla::layers::CompositorParent>::Run()

Kinda spiked on 20150109030224 but really spiked on 20150114030202. Almost all Win7. Not sure who should own this, Kats can you route to someone?

Comment 1

[(Away)]

[Tracking Requested - why for this release]: Nightly topcrash, many of them near startup

Comment 2

[Botond Ballo [:botond]]

(In reply to David Major [:dmajor] (UTC+13) from comment #0)
> The CondVar's |mCvar| is null. Not entirely clear how we got here from
> ~CompositorParent -- does it have a CondVar member?

It has Monitor members [1], and Monitor has a CondVar member [2]. The stack probably comes from an optimized build where the Monitor destructor was inlined.

[1] http://mxr.mozilla.org/mozilla-central/source/gfx/layers/ipc/CompositorParent.h?rev=5680121a4909#383
[2] http://mxr.mozilla.org/mozilla-central/source/xpcom/glue/Monitor.h?rev=ea62f34c430d#62

Comment 3

[Kartikaya Gupta (email:[e-mail])]

Looks like a dupe of bug 1121751, which is assigned to :nical.

Comment 4

[(Away)]

Agreed - sorry. I wonder why it didn't get linked to the crash signature.