QtCreator suddenly freezes

Gourmand

All was Ok, I made some changes to project and run with debug. All works, nothing looks suspicious. I wanted just watch how some code processes some data. Set breakpoint to proper line and started Run. But did not wait for stop... Application worked but unexpectedly slowly. I tried cancel it then started again. Same result. It starts, I see how first necessary DLL loaded. And then it loads DLLs one after 15 seconds. I can see app's main window only after several minutes after srart. I tried rebuild application even rebooted Windows. Looks like problem is with gdb. If I set breakpoint while QtCreator "waits" - red circle doesn't appear until gdb answers. It can pass 5 seconds or 10. I don't know so much about gdb and cannot figure out what happened to it. QtCreator works itself. I can run application without debugger - it starts immediately. But debugger doesn't longer work normally. All I tried - all didn't help.

One important notice - I DID NOT CHANGE ANY GDB OR DEBUGGING SETTINGS. Just debugged as obvious with default settings. Something happened "itself".

Anybody help? I need debugger. Project is already large and complex enough.

Gourmand

I don't know what happened, I just created more code and tested with qDebug(). But now debugger works again as it must... What it was?

vsorokin

Your qt libs built as Debug?
How are hardware configuration of your machine where you buildings apps?

Gourmand

bq. Your qt libs built as Debug?

I use prebuild Qt libs from SDK install, of course debugging versions were linked to application

bq. How are hardware configuration of your machine where you buildings apps?

Athlon 64 X2 @3800, 2 GB DDR-II RAM, SATA-II HDDs ~1TB, WinXP Pro SP2 (32bit)

machine config doesn't matter - before accident and after that debugging works normally

Duck

Can you add the debugger log?

Gourmand

Now? When it works correctly?

Gourmand

This happined again, and again. Both times it was when I set 2 breakpoints in two different slots placed in dynamically loaded plugin. If I removed both breakpoints - debugger runs well. If I set them up - debugger freezes. Don't ask me for code - it is large, complex and partially closed.

And I permanently see in application console a watterfall of similar messages:

@can't find linker symbol for virtual table for <anonymous struct>' value can't find linker symbol for virtual table for SOCKETINFO' value
can't find linker symbol for virtual table for SOCKETINFO' value can't find linker symbol for virtual table for <anonymous struct>' value
can't find linker symbol for virtual table for SOCKETINFO' value can't find linker symbol for virtual table for <anonymous struct>' value
found qt_meta_stringdata_ColorPickerPopup' instead can't find linker symbol for virtual table for SOCKETINFO' value
found qt_meta_stringdata_ColorPickerPopup' instead can't find linker symbol for virtual table for <anonymous struct>' value
found qt_meta_stringdata_ColorPickerPopup' instead can't find linker symbol for virtual table for SOCKETINFO' value
found qt_meta_stringdata_ColorPickerPopup' instead can't find linker symbol for virtual table for SOCKETINFO' value
found qt_meta_stringdata_ColorPickerPopup' instead can't find linker symbol for virtual table for <anonymous struct>' value
can't find linker symbol for virtual table for <anonymous struct>' value can't find linker symbol for virtual table for SOCKETINFO' value
can't find linker symbol for virtual table for SOCKETINFO' value can't find linker symbol for virtual table for <anonymous struct>' value
can't find linker symbol for virtual table for SOCKETINFO' value can't find linker symbol for virtual table for <anonymous struct>' value
found qt_meta_stringdata_ColorPickerPopup' instead can't find linker symbol for virtual table for SOCKETINFO' value
found qt_meta_stringdata_ColorPickerPopup' instead can't find linker symbol for virtual table for <anonymous struct>' value
found qt_meta_stringdata_ColorPickerPopup' instead can't find linker symbol for virtual table for SOCKETINFO' value
found qt_meta_stringdata_ColorPickerPopup' instead can't find linker symbol for virtual table for SOCKETINFO' value
found qt_meta_stringdata_ColorPickerPopup' instead can't find linker symbol for virtual table for <anonymous struct>' value
can't find linker symbol for virtual table for <anonymous struct>' value found qt_meta_stringdata_ColorPickerPopup' instead
can't find linker symbol for virtual table for <anonymous struct>' value can't find linker symbol for virtual table for SOCKETINFO' value
can't find linker symbol for virtual table for SOCKETINFO' value can't find linker symbol for virtual table for <anonymous struct>' value
can't find linker symbol for virtual table for SOCKETINFO' value can't find linker symbol for virtual table for <anonymous struct>' value
found qt_meta_stringdata_ColorPickerPopup' instead can't find linker symbol for virtual table for SOCKETINFO' value
found qt_meta_stringdata_ColorPickerPopup' instead can't find linker symbol for virtual table for <anonymous struct>' value
found qt_meta_stringdata_ColorPickerPopup' instead can't find linker symbol for virtual table for SOCKETINFO' value
found qt_meta_stringdata_ColorPickerPopup' instead can't find linker symbol for virtual table for SOCKETINFO' value
found `qt_meta_stringdata_ColorPickerPopup' instead@

this listing I've got after 1 (one!) step in debugger

probably debugger freezing can happen on the score of similar "error" situations

ktdiedrich

The Qt-creator editor freezes frequently (and unfreezes in about 5-6 seconds) when typing, using "Follow symbol under cursor", "Find Usages" and scrolling. I am on Fedora Linux 18. I tried both Qt-creator 2.8.0 and 3.0.0. Two CPUs usage goes to 100% when Qt-creator freezes.
Is anyone else having this problem?