I'm not sure if I can really distinct the event types by the log report (.ips) now due to regular log format changes... From my POV, it doesn't look like a jetsam event. It does not have anything from the documentation page you've mentioned. On the other hand the log we have doesn't look like a regular crash report either. It does contain the following though: "exception" : {"codes":"0x0000000000000001, 0x00000000000000c0","rawCodes":[1,192],"type":"EXC_BAD_ACCESS","signal":"SIGSEGV","subtype":"KERN_INVALID_ADDRESS at 0x00000000000000c0"}, "termination" : {"flags":0,"code":11,"namespace":"SIGNAL","indicator":"Segmentation fault: 11","byProc":"exc handler","byPid":599}, "ktriageinfo" : "VM - (arg = 0x3) mach_vm_allocate_kernel failed within call to vm_map_enter\nVM - (arg = 0x3) mach_vm_allocate_kernel failed within call to vm_map_enter\nVM - (arg = 0x3) mach_vm_allocate_kernel failed within call to vm_map_enter\nVM - (arg = 0x3) mach_vm_allocate_kernel failed within call to vm_map_enter\nVM - (arg = 0x3) mach_vm_allocate_kernel failed within call to vm_map_enter\n", "vmregioninfo" : "0xc0 is not in any region.... Also, I've attached a pair of such logs to my FB mentioned earlier.

We track consumed memory level got from TASK_VM_INFO.phys_footprint. The app crashes at ~1.26GB on iPads with 3GB of RAM. At the same time os_proc_available_memory() shows there's still about 580MB available memory. Our apps are Unity-based games, so JavaScriptCore is definitely not involved. Moreover, we see crashes only on iPadOS versions 26.4+. On earlier versions (e.g. iPadOS 18.7) our games don't crash or crash much less frequently at around 1.8GB consumed memory.

We're seeing the same thing, but with additional nuances. I've filed a bug report FB22883960. The strange thing here is that os_proc_available_memory() shows there's plenty to take, but the app still crashes upon reaching a reduced limit. Moreover, I think, the system is not fully aware of the lowered limit, or there is sort of a bug with the limit itself, as if it had been lowered unintentionally.