Thread: 9; Level: 1

Interrupt from Emacs
   [Condition of type SIMPLE-ERROR]

Restarts:
  0. CONTINUE       - Continue from break.
  1. TRANSFER-ERROR - Transfer this error to a dependent thread, if one exists.
  2. KILL-ERRORS    - Kill errors in workers (remove debugger instances).
  3. ABORT          - abort thread (#<THREAD "quux-hunchentoot-thread-pool-*:8105" RUNNING {1005DF9263}>)

Frames:
  0. ((FLET SB-UNIX::RUN-HANDLER :IN SB-SYS:ENABLE-INTERRUPT) 13 #.(SB-SYS:INT-SAP #X7FFFE4E64930) #.(SB-SYS:INT-SAP #X7FFFE4E64800))
  1. ("foreign function: call_into_lisp")
  2. ("foreign function: funcall3")
  3. ("foreign function: interrupt_handle_now")
  4. ("foreign function: #x41C106")