Operating system with a single kernel stack per processor

One or more computer-readable non-transitory storage media embodying software that is operable by a kernel-mode thread of an operating system of a computing device when executed to:

• store, in response to a first system call by a first user-mode thread, thread state information associated with the first user-mode thread into a memory space associated with the first user-mode thread when executing in kernel space;
• execute, on a processor of the computing device, first operations corresponding to the first system call, wherein data associated with executing the first operations are stored on a kernel stack associated with the processor;
• determine to pause the execution of the first operations;
• enqueue a workload on a schedule queue for resuming the execution of the first operations in a future, wherein the workload comprises data associated with executing a remainder of the first operations;
• and
• execute, on the processor, second operations corresponding to a second system call from a second user-mode thread, wherein data associated with executing the second operations are stored on the kernel stack associated with the processor.

A system comprising:

• one or more processors;
• and
• one or more computer-readable non-transitory storage media coupled to one or more of the processors and comprising instructions operable when executed by one of the processors to cause a kernel-mode thread of an operating system of the system to:
• store, in response to a first system call by a first user-mode thread, thread state information associated with the first user-mode thread into a memory space associated with the first user-mode thread when executing in kernel space;
• execute, on a processor among the one or more processors, first operations corresponding to the first system call, wherein data associated with executing the first operations are stored on a kernel stack associated with the processor;
• determine to pause the execution of the first operations;
• enqueue a workload on a schedule queue for resuming the execution of the first operations in a future, wherein the workload comprises data associated with executing a remainder of the first operations;
• and
• execute, on the processor, second operations corresponding to a second system call from a second user-mode thread, wherein data associated with executing the second operations are stored on the kernel stack associated with the processor.