Dear Paolo, I get a NULL pointer dereference when using CTRL+C on the below piece of code in unwind_context but I think the error might happen earlier or for the same reason
st> [[(Delay forSeconds: 3) wait. '123' printNl] repeat] value => CTRL+C MessageNotUnderstood(Exception)>>signal (ExcHandling.st:254) UndefinedObject(Object)>>doesNotUnderstand: #goodness: (SysExcept.st:1408) optimized [] in BlockClosure class>>exceptionHandlerSearchBlock (BlkClosure.st:16) [] in SystemExceptions.UserInterrupt(Exception)>>instantiateNextHandlerFrom: (ExcHandling.st:340) MethodContext(ContextPart)>>scanBacktraceForAttribute:do: (ContextPart.st:578) SystemExceptions.UserInterrupt(Exception)>>instantiateNextHandlerFrom: (ExcHandling.st:342) SystemExceptions.UserInterrupt(Exception)>>signal (ExcHandling.st:254) SystemExceptions.UserInterrupt class(Exception class)>>signal (ExcHandling.st:151) ProcessorScheduler(Object)>>userInterrupt (Object.st:1398) optimized [] in Delay class>>initialize (Delay.st:196) [] in Process>>onBlock:at:suspend: (Process.st:412) BlockClosure>>on:do: (BlkClosure.st:196) [] in Process>>onBlock:at:suspend: (Process.st:413) BlockClosure>>ensure: (BlkClosure.st:271) [] in Process>>onBlock:at:suspend: (Process.st:391) [] in BlockClosure>>asContext: (BlkClosure.st:182) BlockContext class>>fromClosure:parent: (BlkContext.st:68) lt-gst: interp.c:1035: unwind_context: Assertion `newContextOOP != ((void *)0)' failed. stdin:2: Aborted (ip 12)BlockContext class>>#fromClosure:parent: Aborted (core dumped) As usual I don't understand the issue yet. The interrupt should be queued through a normal SET_EXCEPT_FLAG and all frame information should be written back. Do you have an idea or time to look into for a fix? holger _______________________________________________ help-smalltalk mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-smalltalk
