Hello, 

A few weeks ago I wrote and asked about this problem, but received no
satisfactory answer, not even "we need more information to answer that
question".  

Robert STRANDH writes:
 > Hello, 
 > 
 > This has been descussed before (about a year ago), but I thought I'd
 > bring it up again.
 > 
 > When running McCLIM applications, I sometimes need to restart them
 > from the beginning.  Here is the scenario :
 > 
 >     * [run the application]
 >     [application runs]
 >     [interrupt the application]
 > 
 >     Restarts:
 >       0: [CONTINUE          ] Return from BREAK.
 >       1: [RESTART-EVENT-LOOP] Restart CLIM's event loop.
 >       2: [DESTROY           ] Destroy the process
 > 
 >     Debug  (type H for help)
 > 
 >     (UNIX::SIGINT-HANDLER #<unused-arg> #<unused-arg> #.(SYSTEM:INT-SAP #x3FFFE558))
 >     ...
 > 
 >     0] [do some debugging, backtracing, etc]
 >     0] 2
 > 
 >     Interrupted at #x100F3AC5.
 > 
 >     Restarts:
 >       0: [CONTINUE] Return from BREAK.
 >       1: [ABORT   ] Return to Top-Level.
 > 
 >     Debug  (type H for help)
 > 
 >     (UNIX::SIGINT-HANDLER #<unused-arg> #<unused-arg> #.(SYSTEM:INT-SAP #x3FFFE338))
 >     ...
 >     0] 1
 > 
 >     * [try to restart the application]
 > 
 > 
 >     Error in function COMMON-LISP::ASSERT-ERROR:
 >        The assertion (NOT MULTIPROCESSING::*INHIBIT-SCHEDULING*) failed.
 > 
 >     Restarts:
 >       0: [CONTINUE] Retry assertion.
 >       1: [ABORT   ] Return to Top-Level.
 > 
 >     Debug  (type H for help)
 > 
 >     (COMMON-LISP::ASSERT-ERROR (NOT MULTIPROCESSING::*INHIBIT-SCHEDULING*) NIL NIL)
 >     ...
 >     0] 
 > 
 > From the discussion a year ago, it seems like the process was killed
 > when inside a without-scheduling and that this is still in effect
 > after the process was killed. 
 > 
 > Questions: 1. Am I doing something I shouldn't? 
 >         2. Is this behavior on the part of CMUCL normal? 
 >         3. Is there anything I can do to remove the lock (just
 >            setting MP::*INHIBIT-SCHEDULING* to nil doesn't seem to
 >            help)?
 > 

-- 
Robert Strandh

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