[Lazarus] RE : Lazarus crashing reproducibly on startup (64-bitLinux)

[brian]

On 03/19/2012 01:34 PM, Ludo Brands wrote:
>>>> I've recently switched distros to Mint Debian 12 64-bit
>> XFCE. This is
>>>> on an AMD Phenom *4, 4 GB of RAM. When I was reinstalling stuff I
>>>> noticed that the latest version of Lazarus that they have
>> in the repo
>>>> is 0.9.28, a bit old I know, but it works for what I do.
>>>>
>>>> So I installed 0.9.28, which also brought in FPC 2.4.0-2.
>>>>
>>>> When I try to run Lazarus from the menus, I get the splash
>> screen and
>>>> then nothing, the IDE never comes up.
>>>>
>>>> So, I switched to a terminal, ran startlazarus and got the
>> following
>>>> output.
>>>>
>>>> [WARNING] Out of OEM specific VK codes, changing to unassigned
>>>> [WARNING] Out of unassigned VK codes, assigning $FF
>>>> TLazarusManager.Run starting /usr/lib/lazarus/0.9.28.2/lazarus ...
>>>> Runtime error 203 at $0000000000736A16 $0000000000736A16
>>>> $0000000000720991
>>>>
>>>>
>>>> OK, maybe it's an old version. I downloaded the latest .DEBs from
>>>> SourceForge, and installed those. No change in the symptoms (well,
>>>> OK, I can't say the addresses were exactly the same, but the bit
>>>> about the VK codes was, and it was still a runtime error 203).
>>>>
>>>> I cleaned out everything to do with Lazarus and FPC that I
>> could find
>>>> (using KFind to make sure I got everything) and had one
>> more try with
>>>> 0.9.28. As expected, still the same error. I know that
>> 0.9.28 used to
>>>> run on Mint 9 64-bit, but that was the Ubuntu-based
>> version, not the
>>>> Debian-based one.
>>>>
>>>> Anyone have any ideas how to fix this, please?
>>>
>>> Starting at a shell prompt, if you load Lazarus in gdb, run
>> it, wait
>>> for the crash and then use GDB's bt command to get a
>> backtrace, do the
>>> first few lines say anything useful?
>>>
>>
>> Probably not, but this is what was produced using V0.9.28
>>
>> <paste>
>>
>> run
>> Starting program: /usr/bin/startlazarus
>> [Thread debugging using libthread_db enabled]
>>
>> Program received signal SIGSEGV, Segmentation fault.
>> 0x00000000005a2879 in ?? ()
>> (gdb) bt
>> #0  0x00000000005a2879 in ?? ()
>> #1  0x00007fffffffe1c0 in ?? ()
>> #2  0x00007ffff7de902c in ?? () from
>> /lib64/ld-linux-x86-64.so.2 #3  0x0000000000502b31 in ?? ()
>> #4  0x00007ffff577dead in __libc_start_main () from
>> /lib/x86_64-linux-gnu/libc.so.6
>> #5  0x0000000000000000 in ?? ()
>> (gdb)
>>
>>
>> </paste>
>>
>>
>
> There was a problem with ubuntu 12 and gtk (glib2-2.31). A patch was created
> and committed http://bugs.freepascal.org/view.php?id=21129 . If mint 12 is
> derived from ubuntu 12 you'll probably running into this problem. Try
> lazarus from svn.
>

This is the Debian-based version of Mint. Standard Mint is 
Ubuntu-based but the Debian version is for those who prefer a rolling 
distribution. AFAIK, the current build is based on Debian Wheezy.

I've tried downloading the svn version, and there's some problem with 
libgdb.a, I can't even get FPC to build, let alone Lazarus. There are 
YARDS of undefined globals. I finally got an answer from someone on 
the FPC list (after just being told "fix your GDB") and I'm trying to 
work my way through that at the moment.

Brian.