Some crashes with firebase sdk

[Lingyj]

I got some crashes with firebase sdk recently, here are some infomations. How to fix that?

the crashes list:

the details:

the sdk & version:

[morganchen12]

For each stack trace posted, can you expand the full stack trace to show the hidden symbols (click on the triangle icons on the left side of the stack trace)?

[baolocdo]

Do you know which iOS versions caused the crashes?

[Lingyj]

ios 11.2.5 (15D60) iPhone 7 Plus
ios 11.3.1 (15E302) iPhone 7

[Lingyj]

11.3.1 (15E302) iPhone 7
11.2.5 (15D60) iPhone 7 Plus
11.3.1 (15E302) 7 Plus

[Lingyj]

11.2.1 (15C153) iPhone 7
11.3.1 (15E302) iPhone X
11.3.1 (15E302) iPhone 6

[Lingyj]

11.2.5 (15D60) iPhone 7 Plus
11.3.0 (15E216) iPhone 7

[Lingyj]

11.2.5 (15D60) iPhone 7 Plus

[Lingyj]

11.2.5 (15D60) iPhone 7 Plus

[morganchen12]

The crashes here are all in methods that shouldn't crash (like +[NSDate date]) or in retain/release. They may not be issues related to Firebase, and we likely won't be able to debug them without repro.

[morganchen12]

@Lingyj can you try updating to Firebase 5 and seeing if these are still present?

[Lingyj]

I catght it just now but only once. I opened the Zombie Objects and run the project, the crash occured.

[Lingyj]

I guess the crash [FIRASearchAdReporter scheduleSearchAdReport] because of nonatomic. nonatomic is not thread-safe. In the other thread, the method is executing and coursed the crash. You can read this link.

[baolocdo]

I think the self in the async block might have been deallocated. We should check whether self has been nil in the async call block. Can someone fix the FIRMutableDictionary and FIRNetwork? @morganchen12 @ryanwilson

Regarding the screenshot of FIRAMonitor, please upgrade to the latest version and use the flag UseCFPreferencesLibrary=YES in the Info.plist? Please let us know whether you see the crash again. Thanks