recursive errors or deadlock.
* bug fix: real-time signals are not used anymore, so no more
hanging when the system wide real-time signal queue gets full.
+ * bug fix: INTERRUPT-THREAD on a dying thread could produce memory
+ fault.
* bug fix: finalizers, gc hooks never run in a WITHOUT-INTERRUPTS
+ * bug fix: fix random memory faults related to interrupts on alpha
* bug fix: fix deadlocks related to starting threads
changes in sbcl-1.0.25 relative to 1.0.24: