[Lazarus] Lazarus crashing reproducibly on startup (64-bit Linux)

brian brian at meadows.pair.com
Sun Mar 18 17:19:47 CET 2012

On 03/18/2012 11:45 AM, Mark Morgan Lloyd wrote:
> brian 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/ ...
>> 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


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 
#5  0x0000000000000000 in ?? ()



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