Upcall stack: base: 0x804b000  size: 65536
Upcall stack: base: 0x805b000  size: 65536
Upcall stack: base: 0x806b000  size: 65536
Upcall stack: base: 0x807b000  size: 65536
Upcall stack: base: 0x808b000  size: 65536
Upcall stack: base: 0x809b000  size: 65536
Upcall stack: base: 0x80ab000  size: 65536
Upcall stack: base: 0x80bb000  size: 65536
Upcall stack: base: 0x80cb000  size: 65536
Upcall stack: base: 0x80db000  size: 65536
Upcall stack: base: 0x80eb000  size: 65536
Upcall stack: base: 0x80fb000  size: 65536
Upcall stack: base: 0x810b000  size: 65536
Upcall stack: base: 0x811b000  size: 65536
Upcall stack: base: 0x812b000  size: 65536
Upcall stack: base: 0x813b000  size: 65536
Cool, I'm an upcall.
Type: 0
Events: 1
Interrupted: 0
My stack: ~0x814a970
My sa:
  sa_id: 1
  sa_cpu: 0
