Crash on notification service extension While saving Content in DB as " Thread 4: EXC_RESOURCE (RESOURCE_TYPE_MEMORY: high watermark memory limit exceeded) (limit=24 MB)"

[skvalibabu]

How frequently does the bug occur?

Always

Description

Thread 4: EXC_RESOURCE (RESOURCE_TYPE_MEMORY: high watermark memory limit exceeded) (limit=24 MB)

My Existing app got impacted in IOS 18 , when notification received in app is crashing.
So in order to debug this , I have recently updated my Xcode from 15.0 to Xcode 16.

I have tried to compile it , it got error like "Compiling for iOS 15.0, but module 'RealmSwift' has a minimum deployment target of iOS 18.0: " So in have changed RealmSwift pod minimum deployment target to IOS 15.6 . Then I am able to compile it.

Now the next step I have tried it , to reproduce the issue , I have sent a notification to IOS 18 device , I am able to reproduce the issue "Thread 4: EXC_RESOURCE (RESOURCE_TYPE_MEMORY: high watermark memory limit exceeded) (limit=24 MB)"

App is crashing and DB is not updated.

but it is working fine in Xcode 15 and IOS 17 and below devices

Stacktrace & log output

+ (Class)classForString:(NSString *)className {
    if (Class cls = s_localNameToClass[className]) {
        return cls;
    }

    if (Class cls = NSClassFromString(className)) {
        return RLMIsObjectSubclass(cls) ? cls : nil;
    }

    // className might be the local name of a Swift class we haven't registered
    // yet, so scan them all then recheck
    {
        unsigned int numClasses;
        std::unique_ptr<__unsafe_unretained Class[], decltype(&free)> classes(objc_copyClassList(&numClasses), &free);

// HERE I GOT CRASH AS "The operating system stopped the process because the process exceeded a limit on resource consumption, like CPU time or memory." in the framework.


        RLMRegisterClassLocalNames(classes.get(), numClasses);
    }

    return s_localNameToClass[className];
}

Can you reproduce the bug?

Always

Reproduction Steps

No response

Version

pod 'RealmSwift', '~> 10.0'

What Atlas Services are you using?

Local Database only

Are you using encryption?

No

Platform OS and version(s)

Xcode 16.0
Mac OS 15.0
IOS 18.0
Swift Version 5.6

Build environment

Xcode version: 16.0
Dependency manager and version: COCOA PODS - 1.14.3
Realm 10.54.0

Found couple of warnings like this

[sync-by-unito]

➤ PM Bot commented:

Jira ticket: RCOCOA-2439