8k LDT descriptors per task. Each LDT table also needed an entry in GDT, limiting the amount of tasks to also another 8k. So 64k descriptors total. Thing is, m

8k LDT descriptors per task. Each LDT table also needed an entry in GDT, limiting the amount of tasks to also another 8k. So 64k descriptors total. Thing is, most ia32 operating systems dont actually use the existing hardware model for multitasking, and instead use simpler approaches that cater to the flat memory model.