After iOS 15 release, we seeing a lot NO_CRASH_STACK crashes from Xcode organizer with so many different crash stack. But look into the crash logs, we find some regular pattern： Most happens on old devices like iPhone 8.x or iPhone 9.x. Most of them happened in 10 seconds after launch. There is no crash reason in log. All crash code is 0x00. Most of them have "Kernel Triage: VM - Fault hit memory shortage" or "Kernel Triage: VM - Compressor failed a blocking pager_get". So I have no idea how to solve it because it looks like our app killed by system with some reason that not shown in log. I guess maybe is memory issue but I have no idea how to locate the problem logic or function in our code. I also posted a report: FB9816327 Does anyone get some issue? Is there any idea how I can locate the issue and fix these crashes? Here are some of the crash logs: 2021-12-14_18-37-39.7484_-0500-4682f855e1ea6f228c8c9b4fed485f7da408873b.crash 2021-12-14_18-49-23.9214_-0500-f7cbe972659e973071da1e83300c1b56cc7b2b8f.crash 2021-12-15_00-41-06.8845_+0100-2092455ce72e7244d3edc7320929f68144198d80.crash 2021-12-15_14-56-50.0465_-0500-baa010cb0afb8c6093500690e9c933aba56e9607.crash 2021-12-20_09-16-31.5066_+0800-045c2f4d3c9d100631312677fdb037543f9ca972.crash