Bug 254974 – OffscreenCanvas - draw crashes Safari

• Component: Canvas
• Status: RESOLVED DUPLICATE

[Tzvetelin Vassilev]

Created attachment 465759 [details]
MacOS process monitor console log output

The problem is observed with OffscreenCanvas only under iOS. I'm using iOS 16.4. After a few draws Safari crash and restarts itself. This is not observed with canvas element.

[Alexey Proskuryakov]

Thank you for the report! The attached log filtered on MobileSafari only tells us that the com.apple.WebKit.WebContent process crashed, nothing more.

Could you please provide a reproducible test case? And if that's not possible, a crash log and console log filtered on WebContent could help.

[Tzvetelin Vassilev]

Created attachment 465763 [details]
MacOS process monitor console log output - unfiltered

[Tzvetelin Vassilev]

The case is inking, after a few seconds input rendering crash happens. Reproducible test case is not very easy to provide. Are this logs helps?

[Alexey Proskuryakov]

This log may be helpful in addition to a crash log, but probably not on its own. Please see https://developer.apple.com/documentation/xcode/acquiring-crash-reports-and-diagnostic-logs

We don't have to use a minimized test; any steps that reproduce this on a public website, or on a website that you can share with us in private, would work.

[Tzvetelin Vassilev]

I know about Analytics data but it doesn't provide any information about what happens. I'll have working example tomorrow, I'll share it when is accessible.

[Tzvetelin Vassilev]

You can access the sample on https://willtech.wacom.com/ink-canvas
Draw constantly 2-3 times for a few seconds and browser will crash.

[Matt Woodrow]

We're crashing due to running out of memory in the WebContent process.

Tested locally, and this is a duplicate of 253927.

*** This bug has been marked as a duplicate of bug 253927 ***