[M3devel] assertion failure in Juno

[Daniel Alejandro Benavides D.]

Hi:
I can´t get how do you get actually to draw it, coould you send a screen cast of it or some .juno code to run it? 

--- El mié, 4/11/09, Mika Nystrom <mika at async.async.caltech.edu> escribió:

> De: Mika Nystrom <mika at async.async.caltech.edu>
> Asunto: [M3devel] assertion failure in Juno
> Para: m3devel at elegosoft.com
> Fecha: miércoles, 4 noviembre, 2009 8:27
> Hello m3devel,
> 
> I'm afraid the following is probably an orphan bug, but in
> case anyone
> has a clue what's going on, here it is:
> 
> 1. Put down three points in Juno, draw a curve using them
> (looping from
> one point back to itself, with the other two as control
> points).
> 
> 2. Turn on the grid.
> 
> 3. Move one of the control points around, so it snaps to
> the grid.
> 
> 4. Move the other control point to the same spot.
> 
> What happens on my AMD64_FREEBSD is this:
> 
> (323)ginger:~/cm3/scripts>Juno
> Xlib:  extension "Generic Event Extension" missing on
> display "rover:1.0".
> Assertion failed:
> (XLIB_SEQUENCE_COMPARE(dpy->last_request_read, <=,
> dpy->request)), function process_responses, file
> xcb_io.c, line 242.
> Assertion failed:
> (XLIB_SEQUENCE_COMPARE(dpy->last_request_read, <=,
> dpy->request)), function process_responses, file
> xcb_io.c, line 242.
> Abort
> (324)ginger:~/cm3/scripts>
> 
> now if it had crashed in Juno's M3 code I wouldn't be
> concerned, but it
> seems to be crashing in X code, which just sounds wrong...
> and it seems
> to crash in some sort of messaging queue code?  
> 
>     Mika
> 
> P.S. More detail:
> 
> (m3gdb) run
> Starting program: /usr/local/cm3/bin/Juno 
> Can't disable VM GC.
> Signal        Stop     
> Print   Pass to program Description
> SIG64         No   
>     No      Yes     
>        Real-time event 64
> 
> Program received signal SIGUSR2, User defined signal 2.
> 0x0000000802eb729c in __error () from /lib/libthr.so.3
> (m3gdb) handle SIGUSR2 nostop noprint
> Signal        Stop     
> Print   Pass to program Description
> SIGUSR2       No   
>     No      Yes     
>        User defined signal 2
> (m3gdb) cont
> Continuing.
> Xlib:  extension "Generic Event Extension" missing on
> display "rover:1.0".
> Assertion failed:
> (XLIB_SEQUENCE_COMPARE(dpy->last_request_read, <=,
> dpy->request)), function process_responses, file
> xcb_io.c, line 242.
> Assertion failed:
> (XLIB_SEQUENCE_COMPARE(dpy->last_request_read, <=,
> dpy->request)), function process_responses, file
> xcb_io.c, line 242.
> 
> Program received signal SIGABRT, Aborted.
> 0x000000080300ea9c in thr_kill () from /lib/libc.so.7
> (m3gdb) where
> #0  0x000000080300ea9c in thr_kill () from
> /lib/libc.so.7
> #1  0x000000080309df8b in abort () from
> /lib/libc.so.7
> #2  0x0000000803085f55 in __assert () from
> /lib/libc.so.7
> #3  0x0000000802ba7451 in process_responses () from
> /usr/local/lib/libX11.so.6
> #4  0x0000000802ba7cc7 in _XEventsQueued () from
> /usr/local/lib/libX11.so.6
> #5  0x0000000802b91b8b in XEventsQueued () from
> /usr/local/lib/libX11.so.6
> #6  0x0000000801268b1b in AdjustCoverage (xcon=Invalid
> C/C++ type code 26 in symbol table.
> ) at ../src/xvbt/XClientF.m3:362
> #7  0x000000080124dfb5 in Messenger (self=Invalid
> C/C++ type code 26 in symbol table.
> ) at ../src/xvbt/XMessenger.m3:108
> #8  0x0000000801aeb7b3 in RunThread (me=Invalid C/C++
> type code 29 in symbol table.
> ) at ../src/thread/PTHREAD/ThreadPThread.m3:509
> #9  0x0000000801aeb569 in ThreadBase (param=Invalid
> C/C++ type code 35 in symbol table.
> ) at ../src/thread/PTHREAD/ThreadPThread.m3:490
> #10 0x0000000802ead4d1 in pthread_getprio () from
> /lib/libthr.so.3
> #11 0x0000000000000000 in ?? ()
> (m3gdb) 
> (m3gdb) up 6
> #6  0x0000000801268b1b in AdjustCoverage
> (xcon=16_000000080377a2c0, d=1) at
> ../src/xvbt/XClientF.m3:362
> 362         IF
> X.XEventsQueued(xcon.dpy, X.QueuedAfterReading) # 0 THEN
> Current language:  auto; currently Modula-3
> (m3gdb) list
> 357       RAISES
> {TrestleComm.Failure} =
> 358       BEGIN
> 359         TRY
> 360     
>    INC(xcon.coverage, d);
> 361         IF xcon.coverage
> = 0 THEN X.XFlush(xcon.dpy) END;
> 362         IF
> X.XEventsQueued(xcon.dpy, X.QueuedAfterReading) # 0 THEN
> 363       
>    Thread.Signal(xcon.qNonEmpty)
> 364         END;
> 365         EXCEPT X.Error
> => RAISE TrestleComm.Failure END;
> 366       END AdjustCoverage;
> (m3gdb) print xcon.dpy
> $1 = 16_000000080389f000
> 
> 
> 
>