1509870 - "Failed to create ScaledFont for FontKey" on webrender on android

Status: RESOLVED DUPLICATE of bug 1511131

(Core :: Graphics: WebRender, defect, P3)

Description

[Jamie Nicol [:jnicol] out of office until 6th Jan]

I'm hitting this on spiegel.de in the geckoview example app with webrender enabled. Doesn't happen immediately or reliably, but usually after scrolling around for a minute.

logcat:
11-26 14:16:42.212 25908 25987 I Gecko   : [GFX2-]: Attempted to deserialize FreeType scaled font without FreeType face
11-26 14:16:42.213 25908 25987 I Gecko   : [GFX1 39]: Failed to create ScaledFont for FontKey 93
11-26 14:16:42.214 25908 25987 F MOZ_Assert: Assertion failure: [GFX1 39]: Failed to create ScaledFont for FontKey 93, at /home/jamie/src/gecko/gfx/2d/Logging.h:728

Comment 1

[Darkspirit]

(Randall Barker [:rbarker] from bug 1504667 comment 5)
> https://crash-stats.mozilla.com/report/index/a0b8af2c-9beb-4822-931a-11b020181130

|[0][GFX1 39]: Failed to create ScaledFont for FontKey 26 (t=29.2169)

Comment 2

[Jamie Nicol [:jnicol] out of office until 6th Jan]

Hitting this 100% reliably on page load on https://amp.theguardian.com/commentisfree/2018/dec/09/my-beef-with-vegans-says-more-about-me-than-them-david-mitchell (on amp.theguardian... but not www.theguardian...)

Comment 3

[Andrew Osmond [:aosmond] (he/him)]

This seems to be responsible for the remaining wr_moz2d_render_cb signatures that were not fixed by bug 1524280.

Comment 4

[Jamie Nicol [:jnicol] out of office until 6th Jan]

This was a duplicate of bug 1511131. It was android specific, so a different bug to 1524280 and other wr_moz2d_render_cb crashes. Andrew, if there are still crashes matching that signature on other platforms then I think we should open a new bug for them?