[Webkit-unassigned] [Bug 275446] REGRESSION(iOS 18): Runaway memory usage and frequent calls to block in WebProcessPool::registerNotificationObservers

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=275446

--- Comment #7 from Ali Juma <ajuma at chromium.org> ---
(In reply to Ben Nham from comment #6)
> I can't repro your issue by loading about:blank on the WWDC Seed build. So I
> wonder if there is something else going on with your environment which is
> causing those notifyd notifications to be posted constantly. Filing a
> Feedback Assistant report with a sysdiagnose so we could look at the logs
> and figure out what's going on would be a good next step. Also, is this on a
> real device or on a simulator?
> 
> As an untested hack, you could possibly try something like this to try and
> disable all notifyd notifications in the process. This will almost certainly
> cause other issues though.
> 
>   // declare this somewhere
>   extern void notify_set_options(uint32_t);
> 
>   // in theory, i think this disables notifications
>   notify_set_options(0x80000000);

We are only seeing this in the simulator (consistent across multiple people and bots), we haven't been able to repro on device. I'll file a Feedback Assistant issue with a sysdiagnose.

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