Re: [Xotcl] troubleshooting

From: Gustaf Neumann <neumann_at_wu-wien.ac.at>
Date: Thu, 14 Oct 2010 09:29:00 +0200

  Dear Victor,

many thanks for the short example! i have compiled xotcl
1.6.6 with
my three test releases, the script runs fine in every version,
also valgrind did not report unusual happenings, but i tried
so far only with mac os x with 64bit.

i am slightly confused about the activestate version number
TCL 8.6.0.0b4. There was never a version of Tcl 8.6 b4 released
(or tagged on sourceforge). As you wrote, the tcl_patchLevel
is 8.6b1.2, which is the current HEAD release (and therefore
a moving target). Apparently, activestate uses its own tags.
Have you seen somewhere on activestate a source-release?

-gustaf neumann

On 14.10.10 08:21, Victor Mayevski wrote:
> Thank you Gustaf,
> I am using the ActiveState binary and XOTcl is version 1.6.6, not NX. I don't know where to get the source code for TCL 8.6.0.0b4, it is not available anywhere yet.
>
> I think I have zeroed in where the crash happens. Here is the sample code that causes the crash for me:
>
> tcl_patchLevel 8.6b1.2
> tcl_platform(byteOrder) = littleEndian
> tcl_platform(machine) = x86_64
> tcl_platform(os) = Linux
> tcl_platform(osVersion) = 2.6.35-22-generic
> tcl_platform(pathSeparator) = :
> tcl_platform(platform) = unix
> tcl_platform(pointerSize) = 4
> tcl_platform(threaded) = 1
> tcl_platform(user) = root
> tcl_platform(wordSize) = 4
>
> ####################################
> Object o
> Object o::o
> [o::o info parent] info children
>
> Segmentation fault
> #####################################
>
> I have also installed the 32bit version of the same ActiveState binary (the latest one, 8.6.0.0b4, tcl_patchLevel 8.6b1.2) and it will crash right at [package req XOTcl]
>
> Hope that helps
>
>
>
>
> ----- Original Message -----
> From: "Gustaf Neumann"<neumann_at_wu-wien.ac.at>
> To: xotcl_at_alice.wu-wien.ac.at
> Sent: Wednesday, October 13, 2010 6:56:00 PM GMT -08:00 US/Canada Pacific
> Subject: Re: [Xotcl] troubleshooting
>
> Hi Victor,
>
> our typical test setup is to run the regression test with
> 8.5.9, tcl 8.6b1,
> and with 8.6head version (where i have applied the
> SANE-NRE-patch
> from Miguel). i just double-checked, for me all three test
> settings
> work fine.
>
> does the regression work on your installation with tcl 8.6b4
> (run: make test)?
> If they run fine, and you experience a crash with your
> application,
> the following works probably best:
>
> Strategy a: try to isolate and pinpoint the problem from the
> tcl layer
> by simplifying your script. if the problem can be
> reproduced with
> a few lines of code, send it to me.
>
> Strategy b: mostly for c-literate developers: use gdb.
>
> - compile tcl and nsf with -g enabled (e.g. add it to
> the compile flags in the Makefile and recompile with
> "make clean" and "make")
>
> - start the tcl shell under gdb, like e.g.
> gdb /usr/local/src/tcl8.5.9/unix/tclsh
>
> - start your application from gdb using
> run ..../yourapp.tcl
>
> - when it crashes, type in
> where
> an you will get the backtrace.
> maybe what you see makes sense to you.
> if not, send it to me, i'll try me best on it.
>
> all the best
> -gustaf
>
> On 14.10.10 00:33, Victor Mayevski wrote:
>> I have just tried my application on latest TCL 8.6b4 and it crashes (Segmentation fault). The same application works just fine in TCL 8.5.9. Any idea how I can troubleshoot it? Tools, techniques etc?
>>
>> Thank you
>> _______________________________________________
>> Xotcl mailing list
>> Xotcl_at_alice.wu-wien.ac.at
>> http://alice.wu-wien.ac.at/mailman/listinfo/xotcl
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