micromanager regression

[Johan Henriksson-2]

Hello,
I'm trying to track down a nasty bug which gives random crashes in linux upon
* querying libraries for available devices
* exit
in the native code. I've tried gdb but it points to... I have no idea. How are you people debugging the JNI?

This regression appeared sometime between now and
svn co -r {2011-11-07} https://valelab.ucsf.edu/svn/micromanager2/trunk

I can dissect further but maybe you have an idea what it might be already? (you seem to have shuffled a lot since then) one of the crashes I got was a complaint about a double-free, but all the way up in the system libraries. my gut feeling is that the problems are caused by a wild pointer, but with JNI I might be wrong.

/Johan

--
-----------------------------------------------------------
Johan Henriksson
PhD student, Karolinska Institutet
http://mahogny.areta.org  http://www.endrov.net

------------------------------------------------------------------------------
All the data continuously generated in your IT infrastructure
contains a definitive record of customers, application performance,
security threats, fraudulent activity, and more. Splunk takes this
data and makes sense of it. IT sense. And common sense.
http://p.sf.net/sfu/splunk-novd2d
_______________________________________________
micro-manager-general mailing list
[hidden email]
https://lists.sourceforge.net/lists/listinfo/micro-manager-general

[Nico Stuurman]

On Nov 29, 2011, at 10:51 AM, Johan Henriksson wrote:

> I'm trying to track down a nasty bug which gives random crashes in linux upon
> * querying libraries for available devices
> * exit
> in the native code. I've tried gdb but it points to... I have no idea.

Did you do a make clean?

I recently had some nasty crashes that were cause by some binaries being out of sync with each other.  Make clean took care of it.


> How are you people debugging the JNI?

See:

http://valelab.ucsf.edu/~MM/MMwiki/index.php/Debugging_MM_on_MacOSX_and_Unix

Also, I sometimes run Micro-Manager from Netbeans, then use 'ps -ef' to get the process id of Micro-Manager (Java) and then attach gdb with 'gdb attach pid'.  Set breakpoints where you expect issues.

Best,

Nico



------------------------------------------------------------------------------
All the data continuously generated in your IT infrastructure
contains a definitive record of customers, application performance,
security threats, fraudulent activity, and more. Splunk takes this
data and makes sense of it. IT sense. And common sense.
http://p.sf.net/sfu/splunk-novd2d
_______________________________________________
micro-manager-general mailing list
[hidden email]
https://lists.sourceforge.net/lists/listinfo/micro-manager-general

[Johan Henriksson-2]

On Tue, Nov 29, 2011 at 8:00 PM, Nico Stuurman <[hidden email]> wrote:

On Nov 29, 2011, at 10:51 AM, Johan Henriksson wrote:

> I'm trying to track down a nasty bug which gives random crashes in linux upon
> * querying libraries for available devices
> * exit
> in the native code. I've tried gdb but it points to... I have no idea.

Did you do a make clean?

I recently had some nasty crashes that were cause by some binaries being out of sync with each other.  Make clean took care of it.

yep, that took care of it. thanks!

/Johan

--
-----------------------------------------------------------
Johan Henriksson
PhD student, Karolinska Institutet
http://mahogny.areta.org  http://www.endrov.net

------------------------------------------------------------------------------
All the data continuously generated in your IT infrastructure
contains a definitive record of customers, application performance,
security threats, fraudulent activity, and more. Splunk takes this
data and makes sense of it. IT sense. And common sense.
http://p.sf.net/sfu/splunk-novd2d
_______________________________________________
micro-manager-general mailing list
[hidden email]
https://lists.sourceforge.net/lists/listinfo/micro-manager-general