Lazarus
Home
Help
TinyPortal
Search
Login
Register
Lazarus
»
Forum
»
Programming
»
Widgetset
»
QT
»
SIGSEGV on exiting application under QT5.6
Free Pascal
Website
Downloads
Wiki
Documentation
Bugtracker
Mailing List
Lazarus
Website
Downloads (Laz+FPC)
Packages (OPM)
FAQ
Wiki
Documentation (RTL/FCL/LCL)
Bugtracker
CCR Bugs
IRC channel
GIT
Mailing List
Other languages
Foundation
Website
Useful Wiki Links
Project Roadmap
Getting the Source
Screenshots
How to use the forum
About donations (wiki)
Bookstore
Computer Math and Games in Pascal
(preview)
Lazarus Handbook
Search
Advanced search
Recent
Lazarus for Windows on aa...
by
Wallaby
[April 23, 2024, 11:46:56 pm]
Parameter passing odditie...
by
KodeZwerg
[April 23, 2024, 11:04:39 pm]
Can function be used for ...
by
jamie
[April 23, 2024, 10:53:10 pm]
(Solved) TIndexedAVLTree ...
by
lainz
[April 23, 2024, 10:49:03 pm]
Demo Scene Picture sinwav...
by
KodeZwerg
[April 23, 2024, 10:26:21 pm]
fkInternalCalc
by
zraja
[April 23, 2024, 09:31:07 pm]
A fairly simple sound sol...
by
KodeZwerg
[April 23, 2024, 09:23:37 pm]
add new targets to make
by
marcov
[April 23, 2024, 08:38:42 pm]
how to tweek fpmake to co...
by
marcov
[April 23, 2024, 08:29:16 pm]
Quirky windows
by
ASerge
[April 23, 2024, 07:07:16 pm]
[Request] Demo Scene Sub ...
by
Gigatron
[April 23, 2024, 06:29:39 pm]
Unlocking Files
by
KodeZwerg
[April 23, 2024, 06:03:08 pm]
[SOLVED] trunk bug for mi...
by
Key-Real
[April 23, 2024, 05:56:32 pm]
Demo Scene Bitmap Font Sc...
by
Gigatron
[April 23, 2024, 05:56:27 pm]
Compile/Convert Delphi pr...
by
Martin_fr
[April 23, 2024, 05:43:11 pm]
Generics - correct syntax
by
Thaddy
[April 23, 2024, 05:40:59 pm]
InstallAware Using Lazaru...
by
msintle
[April 23, 2024, 05:26:36 pm]
Xcode Command Line Tools ...
by
Joseph
[April 23, 2024, 05:16:39 pm]
Offical launch of the 1 B...
by
Hartmut
[April 23, 2024, 04:49:29 pm]
what to do if my target M...
by
nickysn
[April 23, 2024, 04:16:02 pm]
compiler error in unit
by
paule32
[April 23, 2024, 03:49:50 pm]
Multithreading - synchron...
by
mika
[April 23, 2024, 01:48:51 pm]
May be useful to somebody
by
KodeZwerg
[April 23, 2024, 12:38:22 pm]
match automatic highlight...
by
Чебурашка
[April 23, 2024, 11:35:14 am]
Tchart with dual numbers ...
by
wp
[April 23, 2024, 10:48:18 am]
« previous
next »
Print
Pages:
1
[
2
]
Author
Topic: SIGSEGV on exiting application under QT5.6 (Read 13736 times)
zeljko
Hero Member
Posts: 1596
Re: SIGSEGV on exiting application under QT5.6
«
Reply #15 on:
January 27, 2018, 07:28:34 pm »
That's same thing:
#0 0x00007ffff6eca979 in _dl_catch_error () at /lib64/libc.so.6
#1 0x00007ffff79b45c5 in _dlerror_run () at /lib64/libdl.so.2
#2 0x00007ffff79b3fff in dlclose () at /lib64/libdl.so.2
Crash comes from glibc (or from wrong Qt implementation when unloading library)
Logged
baldzhang
New Member
Posts: 33
Re: SIGSEGV on exiting application under QT5.6
«
Reply #16 on:
January 28, 2018, 03:52:15 am »
http://users.telenet.be/Jan.Van.hijfte/qtforfpc/fpcqt4.html
downloaded demo from here, change qt4 -> qt5, 2 program compile passed.
SIGSEGV is the same...
Logged
baldzhang
New Member
Posts: 33
Re: SIGSEGV on exiting application under QT5.6
«
Reply #17 on:
January 29, 2018, 06:22:53 am »
tested at slackware 14.2 x86-64, glibc-2.23
upgraded qt5 5.9.3 from here:
https://slackware.pkgs.org/14.2/slackel-x86_64/qt5-5.9.3-x86_64-1dj.txz.html
it's ok, so looks like this issue is related to glibc for 90%...
but arch is running with glibc 2.26 also and it's ok there.
Logged
zeljko
Hero Member
Posts: 1596
Re: SIGSEGV on exiting application under QT5.6
«
Reply #18 on:
January 29, 2018, 11:44:35 am »
Probably arch uses some custom glibc patch, or different could be distro combination of glibc and gcc. Really don't know. Maybe one must write pure simple Qt c++ app to see if crash occurs.
Logged
baldzhang
New Member
Posts: 33
Re: SIGSEGV on exiting application under QT5.6
«
Reply #19 on:
January 29, 2018, 04:08:50 pm »
tested ok on ubuntu and arch, detail version info:
ubuntu 17.10
qt 5.9.1
glibc 2.26
gcc 7.2.0
arch
qt 5.10.0
glibc 2.26
gcc 7.3.0
will try to rebuild glibc and test.
Logged
baldzhang
New Member
Posts: 33
Re: SIGSEGV on exiting application under QT5.6
«
Reply #20 on:
January 29, 2018, 09:15:02 pm »
ok, I give up, after build glibc 3 times, I totally no idea how to do now.
Logged
zeljko
Hero Member
Posts: 1596
Re: SIGSEGV on exiting application under QT5.6
«
Reply #21 on:
January 30, 2018, 09:39:12 am »
Fedora 26 uses glibc 2.25 and there we have problem. glibc 2.23, 2.24 works fine on fedoras.
If you don't have problems with 2.26 then it's obvious where bug is.
Logged
baldzhang
New Member
Posts: 33
Re: SIGSEGV on exiting application under QT5.6
«
Reply #22 on:
February 02, 2018, 04:16:53 pm »
build and upgrade glibc 2.27, it's ok now
Logged
Print
Pages:
1
[
2
]
« previous
next »
Lazarus
»
Forum
»
Programming
»
Widgetset
»
QT
»
SIGSEGV on exiting application under QT5.6
TinyPortal
© 2005-2018