OOM in system_server and finding the root cause

[art...@samsung.com]

Hello

Have you even seen OutOfMemoryError in system server?
If yes, how do you find the root case of OOM? Do you have any tools that help finding the root cause in production code or during development?

[Haili Wang]

do you have more logs?

Android should have low memory killer kicks in before kernel space OOM killer. Low memory killer has log like "Low on memory". Depends on different types of process, and it's determined by framework/base/services/core/java/com/android/server/am/ProcessList.java

Some vendors would set a very high limit for background process killing to preserve memory for foreground app. However such behavior may not be desirable for different use cases. 

[abu.alanoud]