Re: [midgard-user] Segfault in DM2 edit forms

1. Marcin Sołtysiak

   Re: [midgard-user] Segfault in DM2 edit forms

   Thu July 17 2008 22:02:11 UTC
   >>> On my Kubuntu 8.04 installation, I noticed segfaults in some DM2 forms.
   >>> Strangely enough, they only occur for some of my self-written MgdSchema
   >>> objects (others and built-in ones are working fine), but I can't quite
   >>> make out what the error could be. On a different machine (with openSUSE
   >>> 9.2), they work fine, so I'm a bit lost.
   >>>
   >>> The backtrace looks like this:
   >>>
   >>> Program received signal SIGSEGV, Segmentation fault.
   >>> [Switching to Thread 0xb77f2700 (LWP 8418)]
   >>> 0xb6c79a13 in set_gobject_property_from_zobject (obj_ptr=0x9b65d2c,
   >>> gobject=0x9a62540)
   >>> at
   >>> /home/sonic/downloads/software/Midgard_AllinOne-1.8.8/midgard-php4-1.8.8/midgard.c:627
   >>>
   >>> 627 if (propname && (*property)->refcount) {
   >>
   >> Did you test direct update/create/get on this objects?
   >
   > I tried update() with the DBA object and it produces the same backtrace.
   > update() on the Midgard object is working, however.
   
   How about nulls?
   
   http://marcin.soltysiak.com/view/null-values-issue.html
   
   Solt
   
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2. Andreas Flack

   Re: [midgard-user] Segfault in DM2 edit forms

   Fri July 18 2008 10:54:34 UTC
   Hi!
   
   I tried setting all int and float fields to NOT NULL default 0, but that
   doesn't mak a difference. Also, I have another MgdSchema type where
   floats are nullable which is working fine, so my problem doesn't seem to
   be related to that.
   
   
   Bye,
   
   Andreas
   
   Marcin Sołtysiak schrieb:
   >>>> On my Kubuntu 8.04 installation, I noticed segfaults in some DM2 forms.
   >>>> Strangely enough, they only occur for some of my self-written MgdSchema
   >>>> objects (others and built-in ones are working fine), but I can't quite
   >>>> make out what the error could be. On a different machine (with openSUSE
   >>>> 9.2), they work fine, so I'm a bit lost.
   >>>>
   >>>> The backtrace looks like this:
   >>>>
   >>>> Program received signal SIGSEGV, Segmentation fault.
   >>>> [Switching to Thread 0xb77f2700 (LWP 8418)]
   >>>> 0xb6c79a13 in set_gobject_property_from_zobject (obj_ptr=0x9b65d2c,
   >>>> gobject=0x9a62540)
   >>>> at
   >>>> /home/sonic/downloads/software/Midgard_AllinOne-1.8.8/midgard-php4-1.8.8/midgard.c:627
   >>>>
   >>>>
   >>>> 627 if (propname && (*property)->refcount) {
   >>>
   >>> Did you test direct update/create/get on this objects?
   >>
   >> I tried update() with the DBA object and it produces the same
   >> backtrace. update() on the Midgard object is working, however.
   >
   > How about nulls?
   >
   > http://marcin.soltysiak.com/view/null-values-issue.html
   >
   > Solt
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   > user@lists.midgard-project.org
   > http://lists.midgard-project.org/mailman/listinfo/user
   
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3. Piotr Pokora

   Re: [midgard-user] Segfault in DM2 edit forms

   Fri July 18 2008 11:17:41 UTC
   Andreas Flack writes:
   > Hi!
   >
   > I tried setting all int and float fields to NOT NULL default 0, but that
   > doesn't mak a difference. Also, I have another MgdSchema type where
   > floats are nullable which is working fine, so my problem doesn't seem to
   > be related to that.
   
   NULLs bug is already fixed in 1.8.8.
   I have no real solution for Your problem atm , but it segfaults when we
   list PHP objects' properties.
   Try to print_r DBA object to see if all properties are correctly assigned.
   
   Piotras
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4. Andreas Flack

   Re: [midgard-user] Segfault in DM2 edit forms

   Fri July 18 2008 11:36:16 UTC
   Piotr Pokora schrieb:
   > Andreas Flack writes:
   >> Hi!
   >>
   >> I tried setting all int and float fields to NOT NULL default 0, but that
   >> doesn't mak a difference. Also, I have another MgdSchema type where
   >> floats are nullable which is working fine, so my problem doesn't seem to
   >> be related to that.
   >
   > NULLs bug is already fixed in 1.8.8.
   > I have no real solution for Your problem atm , but it segfaults when we
   > list PHP objects' properties.
   > Try to print_r DBA object to see if all properties are correctly assigned.
   
   They all looked fine. The only thing I found strange is that there was a
   property called "action" with an empty value. I don't have a property
   with that name, so it must get added automatically somewhere.
   
   By playing around a little, I now found the problem: One of the DBA
   classes contained a private var. When I changed this to public, the
   segfaults for both DBA classes went away (the other class is the child
   of the one with the private var). Is that a bug or is it generally not
   allowed to add private vars to a DBA class?
   
   
   Bye,
   
   Andreas
   
   >
   > Piotras
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5. Piotr Pokora

   Re: [midgard-user] Segfault in DM2 edit forms

   Fri July 18 2008 12:03:06 UTC
   Andreas Flack writes:
   
   Hi!
   
   >> Try to print_r DBA object to see if all properties are correctly
   >> assigned.
   >
   > They all looked fine. The only thing I found strange is that there was a
   > property called "action" with an empty value. I don't have a property
   > with that name, so it must get added automatically somewhere.
   
   Yes, it's base midgard_object property. As well as guid and metadata for
   example.
   
   > By playing around a little, I now found the problem: One of the DBA
   > classes contained a private var. When I changed this to public, the
   > segfaults for both DBA classes went away (the other class is the child
   > of the one with the private var). Is that a bug or is it generally not
   > allowed to add private vars to a DBA class?
   
   MidCOM 2.8 is not pure PHP5 framework. It was only adopted to run with PHP5.
   The same midgard-php bindings. That's why I didn't renamed it to
   midgard-php5.
   
   I doubt it can be fixed in 1-8 branch. At least it should work perfectly
   with upcoming 1.9 release.
   Midgard-php5 there, is pure language bindings.
   
   Piotras
   
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