1551114 - Layout inspector crashes tab for flexbox in print preview

Status: RESOLVED DUPLICATE of bug 1563163

(DevTools :: Inspector: Layout, defect, P2)

Description

[Oriol Brufau [:Oriol]]

Attachment: testcase-crash.htm

1. Load a document with a flex container
2. Open print preview
3. Right-click and inspect the flex container
4. Choose the Layout view (this happens by default since bug 1499483)

Result: the tab crashes
https://crash-stats.mozilla.org/report/index/3292582e-a8b9-47de-a8fe-b00640190512

Regression-window: https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=9d702b7e5d80bc365790fe49001882b8dca80c9c&tochange=920027e02ee128e0bbe86e824395f006045c1cbc

Comment 1

[Gabriel Luong [:gl] (ΦωΦ)]

I have not been able to reproduce this on mac. Looking at the crash-stats, it seems this might be reproducible on linux.

Needinfoing bradwerth to see if he sees anything in particular in the crash-stats report since it's pointing to Flex.cpp https://crash-stats.mozilla.org/report/index/3292582e-a8b9-47de-a8fe-b00640190512#tab-details

Comment 2

[Oriol Brufau [:Oriol]]

I don't have a mac, I can reproduce on linux and windows.
But on windows the crash is not immediate, I have two wait like 2-3 seconds after inspecting the element.

Comment 3

[Oriol Brufau [:Oriol]]

BTW, it seems Mac doesn't have print preview? https://searchfox.org/mozilla-central/rev/94c6b5f06d2464f6780a52f32e917d25ddc30d6b/browser/base/content/browser-menubar.inc#77-82

Comment 4

[Micah [:mtigley] (she/her)]

I can reproduce this on Mac by using this extension: https://addons.mozilla.org/en-CA/firefox/addon/print-print-preview-context/

Comment 5

[Liz Henry (:lizzard) (relman/hg->git project)]

Too late for a fix in 68 but we could still take a patch for 69/70.

Comment 6

[Liz Henry (:lizzard) (relman/hg->git project)]

This is P2 and assigned, so I'm removing it from weekly regression triage by marking it fix-optional.
Happy to take a patch for 70 or in future.