1718912 - Crash in [@ objc_msgSend | _NSKeyValueRetainedObservationInfoForObject]

Status: RESOLVED WORKSFORME

(Core :: Graphics: WebRender, defect)

Description

[Wayne Mery (:wsmwk)]

top 20 crash for Mac, Thunderbird 78.11.0

Crash report: https://crash-stats.mozilla.org/report/index/a5c62170-6815-484e-8236-3923a0210701

Reason: EXC_BAD_ACCESS / KERN_INVALID_ADDRESS

Top 10 frames of crashing thread:

0 libobjc.A.dylib objc_msgSend 
1 Foundation _NSKeyValueRetainedObservationInfoForObject 
2 Foundation NSKeyValueWillChangeWithPerThreadPendingNotifications 
3 Foundation NSKeyValuePropertyIsEqual 
4 libobjc.A.dylib cache_getImp 
5  @0xe748a389723d0072 
6 QuartzCore CA::Layer::begin_change 
7 QuartzCore CA::Transaction::get_value 
8 QuartzCore CA::Layer::remove_sublayer 
9 QuartzCore CA::Layer::remove_from_superlayer 

Comment 1

[Daniel Veditz [:dveditz]]

This spiked the same date as bug 1719219 -- two weeks after the release. Did we have a delayed roll-out of WR on Mac or something?

Comment 2

[Daniel Veditz [:dveditz]]

We don't have Web Render on ESR-78 so that link seems unlikely, though that is the kind of thing that might have gotten turned on with a roll-out.

Comment 3

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

Another instance of this crash in CI, based on latest Nightly.

Comment 4

[Jim Mathies [:jimm]]

This doesn't seem very actionable based on where the main thread is (processing events). Markus, any thoughts?

Comment 5

[Jim Mathies [:jimm]]

Not even sure this is wr related. But I'm sure it's not related to the old layers system, which we've largely stopped using on mac.

Comment 6

[Markus Stange [:mstange]]

It's happening during destruction of the native widget hierarchy. Maybe there's a dead CALayer still attached to a view.
I'm not sure how to act on this, other than through code inspection.

Comment 8

[Wayne Mery (:wsmwk)]

bp-c0f47989-0cff-4e75-ae29-5a7f80210928 TB 91.1.0

Comment 9

[Wayne Mery (:wsmwk)]

Like the other Thunderbird Mac crashes, the crash rate dropped to zero - only one bp-ac8bdba8-d653-4bed-aa9e-d05550211022 91.2.0 and, no surprise, also ja-JP-macos OS X 10.15

Comment 10

[Wayne Mery (:wsmwk)]

From a Thunderbird POV I don't see us making progress.
Feel free to reopen if you think it will be useful.

Comment 11

[BugBot [:suhaib / :marco/ :calixte]]

Since the bug is closed, the stalled keyword is now meaningless.
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