firefox crashes on planet.gnome.org
Categories
(Core :: Widget: Gtk, defect)
Tracking
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People
(Reporter: adjam, Unassigned)
References
Details
User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0
Steps to reproduce:
firefox (on my linux box) crashes while loading planet.gnome.org site. The same does NOT happen on Windows.
Actual results:
tab crashes
Expected results:
tab loads the site
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Comment 1•3 years ago
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The Bugbug bot thinks this bug should belong to the 'Core::Widget: Gtk' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.
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Comment 2•3 years ago
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Can't repro, can you paste a crash report URI from about:crashes?
uhm... may be this? https://crash-stats.mozilla.org/report/index/c45f7440-172c-475b-9c3e-f10120220412
or this: https://crash-stats.mozilla.org/report/index/cbe15fb9-c4d7-438b-a477-733470220412
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Comment 4•3 years ago
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It seems it's a null pointer deref deep inside freetype, but we have no useful stack there
Can you use an official build downloaded from either https://nightly.mozilla.org or https://www.mozilla.org/en-US/firefox/ and report if it crashes (and if so paste the link since it most likely will have more useful crash information)?
Thanks.
I downloaded firefox form https://nightly.mozilla.org/, launched it, left open just one tab, launched planet.gnome.org. And it crashes as usual.
Here is the backtrace: https://crash-stats.mozilla.org/report/index/a15d0445-ef34-4cb9-945c-daf5c0220418
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Comment 6•3 years ago
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Ugh, it seems something is borked in your freetype install, what freetype version do you have?
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Comment 8•3 years ago
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Jonathan, any idea? Seems hard to diagnose without FreeType symbols...
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Comment 9•3 years ago
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My guess -- though without freetype symbols, it's hard to confirm exactly what's happening -- is that it's triggered by the site's use of the Source Code Pro font, which includes an 'SVG' table for certain symbol/emoji glyphs.
Note that the News & Updates at http://freetype.org/, dated 2022-03-31, says that:
The main new feature of this release is support for OpenType fonts with an ‘SVG’ table....
So I suspect there's a problem with that code, or with how it's configured.
(Also, I'm aware that RyanVM started to look in to updating our in-tree freetype (used on Android) to 2.12.0, and ran into problems related to the SVG glyph support.)
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Comment 10•3 years ago
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Ok, I think I should have a system with a new enough version of Freetype at home, so would be able to test this evening or tomorrow.
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Comment 11•3 years ago
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So I locally built freetype and confirmed that Firefox is using it, but I couldn't repro still.
https://gitlab.freedesktop.org/freetype/freetype/-/commit/978eefee5401abee6bf702c6bcde9afb47893145 looks somewhat related tho, and was fixed yesterday.
I couldn't repro even reverting it. Reporter, does updating Freetype to current trunk fix the issue with you? You can do this with:
$ git clone https://gitlab.freedesktop.org/freetype/freetype.git
$ cd freetype
$ meson build
$ cd build
$ ninja
$ LD_LIBRARY_PATH=$(pwd) firefox https://planet.gnome.org
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Comment 12•3 years ago
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I can confirm that following your procedure firefox doesn't crash. I just noticed it takes a plain minute to fully load the site, while it usually needed a couple of seconds. But it doesn't crashes.
Guess you can close this, while I have to fill a bug in arch bugzilla.
Thank you very much for your time and your suggestions :)
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Comment 13•3 years ago
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No problem! Glad we got to the bottom of this.
Description
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