IDE freezes on SelectDirectory

[Roman]

I created a program with:
 

Code: Pascal  [Select][+][-]

1. SelectDirectory('Select folder','D:\',folderName);

The compiled program works fine, but running it from IDE the IDE freezes. Is it a bug or I missed something?

I am using: Windows 10 home 22H2
Lazarus 2.2.4 (rev lazarus_2_2_4) FPC 3.2.2 x86_64-win64-win32/win64
installed from lazarus-2.2.4-fpc-3.2.2-win64.exe 

[Handoko]

Maybe that caused by antivirus, try to disable your antivirus or Microsoft Defender to see what happens.

[wp]

Use FPDebug rather than GDB ("Tools" > "Options" > "Debugger" > "Debugger Backend" > select "FpDebug internal Dwarf-Debugger" in the top comobox).

[Martin_fr]

There was a very similar thread recently (with open file or open dir dialog / though I believe Win11).

It turned out to be a bug in the FpDebug in 2.2.4.

If you are affected by the same issue, then you have 2 options:

1) Use Lazarus 2.3 (git main branch)
2) Use the gdb based debugger (Tools > Options > Debugger > Debugger Backend)
   If using gdb, ensure not to use "Dwarf 3", instead use "Dwarf with sets"

[Roman]

Thank you all. I have changed "Debugger Backend" from "FpDebug internal Dwarf-Debugger" to "GNU debugger" and it helped. It seems that SelectDirectory is now a bit slower than before, but it works.

[Martin_fr]

It seems that SelectDirectory is now a bit slower than before, but it works.

If you don't have any dll into which you need to debug:
Set the option "DisableLoadSymbolsForLibraries"

See "Lazarus 1.2.4 and higher" on https://wiki.lazarus.freepascal.org/GDB_Debugger_Tips#gdb.exe_has_stopped_working_.2F_SigSegv_with_Open.2FClose_Dlg

[totya]

Me too, I cannot stop or close app or Lazarus while open dialog freeze. I need to logout from my user account. Sometimes the OS completely freeze (data lost). Dwarf3 or Dwarf with sets doesn't matter.

Lazarus 2.2.4 x64 official downloaded installer package

Win 10 Pro x64

Edit.: gdb debugger solve my problem

[simone]

I ran into the same problem some time ago. See this thread:

https://forum.lazarus.freepascal.org/index.php/topic,61072.msg458679.html#msg458679

[totya]

1) Use Lazarus 2.3 (git main branch)

Thanks, 2.3 works too, but really I'd like the "patch" in the fixes (fixes-2.2) lazarus branch.

[Martin_fr]

1) Use Lazarus 2.3 (git main branch)

Thanks, 2.3 works too, but really I'd like the "patch" in the fixes (fixes-2.2) lazarus branch.

The fix was to complex to be merged to fixes. To risky to break something else. So it is 2.3 only.

[totya]

The fix was to complex to be merged to fixes. To risky to break something else. So it is 2.3 only.

Thanks for the info!

First impression, ide options/key mappings/find key combination filter does not work. This is the first step after lazarus installed...

For example grab ctrl-alt-t, find key combination changed to: "Filter: ctr-alt-t" but the key list not filtered. Lazarus 2.3.0, fpc 3.2.3 (fixes branch).

[Martin_fr]

The fix was to complex to be merged to fixes. To risky to break something else. So it is 2.3 only.

Thanks for the info!

First impression, ide options/key mappings/find key combination filter does not work. This is the first step after lazarus installed...

For example grab ctrl-alt-t, find key combination changed to: "Filter: ctr-alt-t" but the key list not filtered. Lazarus 2.3.0, fpc 3.2.3 (fixes branch).

Indeed, I can confirm this.

I created an issue for it https://gitlab.com/freepascal.org/lazarus/lazarus/-/issues/40121

[totya]

Indeed, I can confirm this.
I created an issue for it https://gitlab.com/freepascal.org/lazarus/lazarus/-/issues/40121

Thank you!

[Martin_fr]

I experimented with merging it.
It's still a big change, and hard to test if nothing was overlooked.

So it's not in the official fixes branch. But I uploaded a copy of the fixes branch at
https://gitlab.com/martin_frb/lazarus/-/commits/test-fpdebug-step-fix-merge

You can get it as follows (from within any clone of either the official Lazarus git, or any fork thereof)

Code: Text  [Select][+][-]

1. git fetch https://gitlab.com/martin_frb/lazarus.git test-fpdebug-step-fix-merge
2. git switch -c mod-fixes-2_2 FETCH_HEAD

If you do, let me know, and let me know if it works for you. Thanks

EDIT:

I have to check, it seems I took an old version of the fix.... May need to change this.

EDIT 2:
Same result, only the ref "cherry picked from ..." in the commit msg is wrong.

---
So you can test it, as described.

[totya]

I experimented with merging it.

Thank you! Its Windows here (no git installed), but torties svn installed, and I use fpcupdeluxe. Can I try your changes with these installed apps anyhow?